Battery Charger 012407 - DigiKey Export/Supplier Content/LinearTech_161... · Linear Technology’s...
Transcript of Battery Charger 012407 - DigiKey Export/Supplier Content/LinearTech_161... · Linear Technology’s...
Battery Charger SolutionsHigh Performance Analog ICs
02.2007
Linear Technology’s high performance battery charger ICs
enable long battery life by providing precision charging
control, constant status monitoring and stringent battery
protection. Proprietary design techniques provide battery
and circuit protection, small solution footprints, faster
charging, 100% standalone operation, improved thermal
performance and high reliability operation.
Each battery chemistry has unique battery-charging require-
ments. Selecting the correct battery charger increases the
operational run time of the end-product by ensuring that
the battery is always optimally charged. This guide contains
the essential technical criteria to easily identify the optimum
battery charging IC for charging single-cell, multiple-cell
and even battery packs, regardless of chemistry.
For information on our latest battery charging products,
visit our website at www.linear.com
Battery Chemistry andNumber of Cells in Series andCharge Current
Battery Chemistry(a color coded guide)
Charging Topology
Design and Application Topics(USB, Smart Battery, etc.)
Selector Guides: Pages 18-19
Block Diagrams: Page 1
Block Diagrams: Page 1
Further Reading: Page 20
How to Use this GuideIf your search is based on: Start with:
Block Diagrams
Linear Charger
Linear Charger + Regulators
Pulse Charger
Switchmode Monolithic Charger
Switchmode Controller Charger
Switchmode Smart Battery Charger
Batt
VIN Linear Charger
Batt
VOUT3
VOUT2
ToSystemLoads
USB
AC/DC
LinearCharger
andRegulator
Batt
VINPulse
Charger
Batt
VIN
SwitchingMonolithicCharger
Batt
VIN
SwitchingControllerCharger
SmartBatteryCharger
• SPI• SMBUS• I/O
VIN
Batt
NiMH NiCd Nickel 02, 10
Lithium Li-Ion 4.2V/cell (1 and 2 cell)Li-Ion 4.0–4.4V/cell (1 and 2 cell)USBPowerPath™ ControlThermal Regulation/ThermistorCoin/Low Current CellsCharge Monitor/Gas GaugeNo Trickle ChargeDesign and Application Notes
04-050506031009080920
Lithium On-chip Regulators/ComparatorsDesign and Application Notes
0720
Lithium PulseDesign and Application Notes
1320
Lithium Switchmode BuckSwitchmode Buck-BoostSwitchmode Thermistor Li-Ion Charge Termination ICDesign and Applications Notes
14-1513111720
NiMH NiCd
Lead-Acid
Multi-Chemistry
Lithium Switchmode BuckSwitchmode Buck-BoostSwitchmode Thermistor Design and Applications Notes
14-15131120
NiMH NiCd
Lead-Acid
Multi-Chemistry
Lithium Smart Battery Chargers–SBS Design and Applications Notes
11-1220
NiMH NiCd
Lead-Acid
Multi-Chemistry
page
Other Other Battery Charger Related Devices 03, 16, 17
LTC4060
NiMHNiCdUp to 4 Cells
LoadChargeCurrentProgram
4.5 < VIN < 10V
No MicrocontrollerNo Firmware
NiMH & NiCd
NiMH and NiCd Fast Battery Chargers
02
LTC4060: Standalone 2A Linear NiMH/NiCd Fast Battery Charger
LTC4010: High Efficiency 4A Standalone Switchmode Battery Charger
Linear Technology’s nickel battery chargers reduce component count, speed design and allow fast, reliable charging of both NiMH and NiCd chemistry cells.
Part No. Topology
Battery Cells* (series)
Max Charge Current
Input Voltage
Onboard Charge Termination
Integrated Pass Transistor
End-of-Charge Signal
AC Present Signal
Thermistor Interface Package
NiMH / NiCd Battery Chargers–Standalone
LTC4060 Linear 1–4 2A 4.5–10V -dV, t, V, T – I I I DFN-16, TSSOP-16
LTC4010 Synchronous Step Down
1–16 4A 4.5–34V -dV, dT/dt, T, t – I I I TSSOP-16
LTC4011 Synchronous Step Down
1–16 4A 4.5–34V -dV, dT/dt, T, t – I I I TSSOP-20
NiMH / NiCd Battery Chargers–Non-Standalone
LT1512 SEPIC 1–18 0.8A 2.4–29V External, µC I – – – SO-8
LT1510 Step Down 1–12 1A 7–29V External, µC I – – – SO-8, SSOP-16, SO-16
LT1513 SEPIC 1–18 1.6A 2.4–29V External, µC I – – – DD Pak, TO-220
LT1769 Step Down 1–12 2A 7–29V External, µC I – – – TSSOP-20, SSOP-28
LT1511 Step Down 1–12 3A 7–29V External, µC I – – – SO-24
LTC4008 Synchronous Step Down
4–18 4A 6–28V External, µC – I I – SSOP-28
LT1505 Synchronous Step Down
1–13 8A 6.7–26V External, µC – I – – SSOP-28
NiMH / NiCd Battery Chargers–Smart Chargers
LTC4100 Step Down 1–13 4A 6–28V External, µC, SMBus
– – I I SSOP-24
LTC1759 Step Down 1–13 8A 11–24V External, µC, SMBus
– – I I SSOP-36
LTC1960 Step Down 4–16 8A 6–28V External, µC, SPI
– – – – SSOP-36
*Based on Maximum Cell Voltage of 1.8V
LTC4010
5.5 < VIN < 34V
No MicrocontrollerNo Firmware
Up to 4ABattery Charger
NiMHNiCdUp to 16-Cell
Load
LTC4011: Actual Size, Complete Solution
IDEAL DIODES 03
Part No.Ideal Diode MOSFET
Integrated MOSFET
Max Current
Input Voltage
Forward Voltage
Forward ON Resistance
Reverse Leakage Current
Supply Current Package
Low-Power PowerPath Controllers and Ideal Diode Devices
LTC4411 Single P-channel I 1A 2.6–5.5V 28mV 140mΩ 1µA 35µA ThinSOT™
LTC4413 Dual P-channel I 1.5A 2.5–5.5V 28mV 100mΩ 1µA 20µA DFN-10
LTC4412 Single P-channel – 5A* 2.5–28V 20mV – 3µA 13µA ThinSOT
LTC4412HV Single P-channel – 5A* 2.5–36V 20mV – 3µA 13µA ThinSOT
Part No. Ideal DiodeExternal MOSFET
Max Current Input Voltage Package
High-Power PowerPath Controllers and Ideal Diode Devices
LTC1473 Dual N-channel 5A 4.75–30V SSOP-16
LTC1473L Dual N-channel 5A 2.8–9V SSOP-16
LTC1479 Triple N-channel 5A 6–28V SSOP-36
LTC4350 Single N-channel 15A 1.5–12V SSOP-16
LT4351 Single N-channel 15A 1.2–18V MS-10
*Depends on MOSFET Selection
Battery Chargers with PowerPath Control
LTC4055: USB Power Controller and Li-Ion Battery Charger
Linear Technology’s PowerPath products and architectures allow the load to be powered from both VIN and the battery, ensuring shorter charging times and more flexibility for the portable device designer. They also enable “instant on” in systems with a depleted battery.
LTC4413 vs 1N5817 SchottkyBenefit: Less Heat
VFWD (mV)
2000
1500
1000
500
0
I OU
T (
mA
)
0 300100 200 400
LTC4413
1N5817Schottky
Ideal Diodes
LTC4413: Dual 2.6A, 2.5V to 5.5V Ideal Diodes in 3mm × 3mm DFN
Linear Technology’s Ideal Diode devices provide a low loss, near “ideal” diode function. They feature lower forward voltage drop and reverse leakage current than conventional diodes. This reduces power losses and self-heating, thereby extending battery run time.
POWERPATH CONTROL
Part No.
Max. Charge Current
Input Voltage
RDS (ON) of Ideal Diode
Standby Current
IBAT Drain Current Standalone
Onboard Charge Termination
Thermal Regulation
Integrated Transistor Package
USB Power Managers and Li-Ion Linear Battery Chargers with PowerPath Control
LTC4055 1.25A 4.3–5.5V 200mΩ 50µA 2.5µA I Timer + C/10
I I QFN-16
LTC4066 1.5A 4.35–5.5V 50mΩ 50µA 2.5µA I Timer + C/x I I QFN-24
LTC4085 1.5A 4.35–5.5V 200mΩ (<50mΩ opt.)
50µA 15µA I Timer + C/10
I I DFN-14
LTC4089/-1 1.5A 4.35–5.5V 215mΩ (<50mΩ opt.)
50µA 15µA I Timer + C/10
I I DFN-22
VBUS
–
+
IN2
WALL
1V
IN1
WallAdapter
OUT
BAT
Input ChargerControl
UVLO
Li-IonBattery
Load
Current LimitControl
Output ChargerControl
Ideal
Li- ION 4 .2V/CELL LINEAR
Li-Ion 4.2V/Cell Linear Battery Chargers
04
LTC4065/A: Standalone Linear Li-Ion Battery Chargers in 2 x 2 DFN
Linear Technology has a vast portfolio of linear Li-Ion 4.2V float voltage battery chargers with a multitude of performance, feature and package options.
Standalone operation eliminates the need for an external micro-controller and associated firmware support for charge termination, thereby greatly simplifying design.
Part No.
Batt.Cells (series)
Max Charge Current
Input Voltage
Onboard Charge Termination
Integr. Pass Trans.
ICHARGE Monitor
End-of-Charge Signal
AC Present Signal
Thermal Reg.
Thermistor Interface Package
Li-Ion 4.2V/Cell Linear Battery Chargers–Standalone
LTC4065 1 0.75A 3.75–5.5V Timer + C/10 I I I – I – DFN-6
LTC4065A 1 0.75A 3.75–5.5V Timer + C/10 I I I I – DFN-6
LTC4069 1 0.75A 3.75–5.5V Timer + C/10 I I I – I DFN-6
LTC4054/L 1 0.8/ 0.15A
4.25–6.5V C/10 I I I I I – ThinSOT
LTC4056 1 0.9A 4.5–6.5V Timer – – I – – – ThinSOT
LTC4068 1 0.95A 4.25–6.5V C/x I I I I I – DFN-8
LTC4058 1 0.95A 4.25–6.5V C/10 I I I I I – DFN-8
LTC4075 LTC4076 LTC4077
1 0.95A 4.3–8V Dual Input USB or Adapter
C/x (USB C/x) C/x (USB C or C/5) C/10 (USB C/x)
I I I
I I I
I I I
I I I
I I I
– – –
DFN-10 DFN-10 DFN-10
LTC4061 1 1A 4.3–8V Timer + C/x I I I I I I DFN-10
LTC4062 1 1A 4.3–8V Timer + C/x I I I – I – DFN-10
LTC4063 1 1A 4.3–8V Timer + C/x I I I – I – DFN-10
LTC4055 1 1A 4.3–5.5V Timer I – I I I I QFN-16
LTC4053 1 1.25A 4.25–6.5V Timer + C/10 I I I I I I MS-10, DFN-10
LTC1733 1 1.5A 4.5–6.5V Timer + C/10 I I I I I I MS-10
LTC4066 1 1.5A 4.35–5.5V Timer + C/x I I I I I I QFN-24
LTC4085 1 1.5A 4.35–5.5V Timer + C/10 I – I I I I DFN-14
LTC4089/-1 1 1.5A 4.35–5.5V Timer + C/10 I – I – I I DFN-22
LTC4050 1 2A 4.5–10V Timer + C/10 – – I I – I MS-10
LTC1731 1, 2 2A 4.5–12V Timer + C/10 – – I – – – MS-8, SO-8
LTC1732 1, 2 2A 4.5–12V Timer + C/10 – – I I – – MS-10, SO-10
LTC4065/ADFN-6
RPROG
VIN3.75V to 5.5V
2mm
Li-Ion
2mm
0.75mm
Li- ION 4 .0V/CELL, 4 .1V/CELL, 4 .4V/CELL LINEAR 05
Li-Ion 4.2V/Cell Linear Battery Chargers–Non-Standalone
Part No.
Batt. Cells (series)
Max Charge Current
Input Voltage
Charge Termination Method
Integrated Pass Transistor
ICHARGE Monitor
End-of-Charge Signal
AC Present Signal
Thermal Reg.
Thermistor Interface Package
Li-Ion 4.2V/Cell Linear Battery Chargers–Non-Standalone
LTC1734/L 1 0.7/0.18A 4.55–8V µController – I – – – – ThinSOT
LTC4057 1 0.8A 4.25–6.5V µController I I – – I – ThinSOT
LTC4059 1 0.9A 3.75–8V µController I I – – I – DFN-6
LTC4059A 1 0.9A 3.75–8V µController I I – I I – DFN-6
Li-Ion 4.0V, 4.1V and 4.4V/Cell Linear Battery Chargers
LTC4064: Monolithic Linear Charger for Backup Li-Ion Batteries
Charging Li-Ion cells to lower float voltages (4.0V–4.1V) increases battery cycle life. As a consequence, batteries are not charged to 100% capacity.
4.4V Li-Ion cells allow for higher voltage charging and have approxi-mately 10% higher capacity than conventional 4.2V Li-Ion batteries.
Part No.
Batt. Cells (series)
Cell Voltage
Max Charge Current Standalone
Charge Termination Method(s)
Integr. Pass Trans.
ICHARGE Monitor
End-of-Charge Signal
AC Present Signal
Thermistor Interface Package
Li-Ion 4.0V/Cell, 4.1V/Cell and 4.4V/Cell Linear Battery Chargers
LTC1734 1 4.1V 0.7A – µController – I – – – ThinSOT
LTC4061-4.4 1 4.4V 1A I Timer + C/x I I I I I DFN-10
LTC4064 1 4.0V 1.25A I Timer + C/10 I I I I I MS-10
LTC4089-1 1 4.1V 1.5A I Timer + C/10 I – I – I DFN-22
LTC1731 1, 2 4.1V 2A I Timer + C/10 – – I – – MS-8
LTC1732 1, 2 4.1V 2A I Timer + C/10 – – I I – MS-10
GND
VCC
BAT
TIMER
NTC 1.5k1%
4.7µF
0.1µF
IBAT = 1ASHDN
1-CELLLi-IonBattery
VIN = 5V
VFLOAT = 4VLTC4064PROG
LTC4059: Complete Charge Cycle (800mAh Battery)
TIME (Hours)
700
600
500
400
300
200
100
0
4.4
4.2
4.0
3.8
3.6
3.4
3.2
3.0
CH
AR
GE
CU
RR
EN
T (
mA
)
0 1.50.5 1.0 2.52.0
Constant Current BA
TT
ER
Y V
OLT
AG
E (V
)
Constant Voltage
VCC = 5VRPROG = 2k
LTC4059/A: 900mA Linear Li-Ion Battery Chargers in 2 x 2 DFN
LTC4059: Actual Size, Complete Solution
Li- ION 4 .2V/CELL LINEAR
Part No.
Max. Charge Current Input Voltage
Standby Current
IBAT Drain Current Standalone
Charge Termination Method(s)
Thermal Regulation
Integrated Transistor Package
USB Compliant Linear Li-Ion 1-Cell Battery Chargers
LTC4065/A/69 0.75A 3.75–5.5V 30µA ±1µA I Timer + C/10 I I DFN-6
LTC4054 0.8A 4.25–6.5V 200µA ±1µA I C/10 I I ThinSOT
LTC4057 0.8A 4.25–6.5V 200µA ±1µA – µController I I ThinSOT
LTC4059/A 0.9A 3.75–8V 25µA ±1µA – µController I I DFN-6
LTC4058 0.95A 4.25–6.5V 200µA ±1µA I C/10 I I DFN-8
LTC4068 0.95A 4.25–6.5V 200µA ±1µA I C/x I I DFN-8
LTC4075 LTC4076 LTC4077
0.95A 4.3–8V Dual Input USB or Adapter
50µA ±1µA I I I
C/x (USB C/x) C/x (USB C or C/5) C/10 (USB C/x)
I I I
I I I
DFN-10 DFN-10 DFN-10
LTC4061 1A 4.3–8V 130µA ±1µA I Timer + C/x I I DFN-10
LTC4062 1A 4.3–8V 130µA ±1µA I Timer + C/x I I DFN-10
LTC4064 1A 4.25–6.5V 25µA ±1µA I Timer + C/10 – I MS-10
LTC4053 1.25A 4.25–6.5V 25µA ±1µA I Timer + C/10 I I MS-10, DFN-10
USB COMPLIANT
USB Compliant Battery Chargers
06
LTC4085: USB Power Manager with Ideal Diode Controller and Li-Ion Battery Charger
Linear Technology’s USB compliant battery chargers offer high charge current accuracy for both high-power (500mA) and low-power (100mA) USB systems. They optimize efficiency, minimizing USB power loss.
LTC4075: Dual Input USB/AC Adapter Standalone Linear Li-Ion Battery Charger
Part No.
Max. Charge Current
Input Voltage
RDS (ON) of Ideal Diode
Standby Current
IBAT Drain Current Standalone
Onboard Charge Termination
Thermal Regulation
Integrated Transistor Package
USB Power Managers and Li-Ion Linear Battery Chargers with PowerPath Control
LTC4055 1.25A 4.3–5.5V 200mΩ 50µA 2.5µA I Timer + C/10 I I QFN-16
LTC4066 1.5A 4.35–5.5V 50mΩ 50µA 2.5µA I Timer + C/x I I QFN-24
LTC4085 1.5A 4.35–5.5V 200mΩ (50mΩ opt.)
50µA 15µA I Timer + C/10 I I DFN-14
LTC4089/-1 1.5A 4.35–5.5V 215mΩ (<50mΩ opt.)
50µA 15µA I Timer + C/10 I I DFN-22
GND
IDC ITERM
BATWall
Adapter
USB PortLTC4075
IUSB
DCIN
USBIN Li-Ion
950mA (Wall)500mA (USB)
IN
5V WallAdapter Input
5V(NOM)USB Cable
To LDOsRegs, etc.
Li-IonBattery
LTC4085NTC
<50mΩ Ideal Diode
ACPR
CHRG
GNDPROGTIMER
OUT
GATE
BAT
WALL
ON-CHIP REGULATOR OR COMPARATOR 07
Battery Chargers with On-chip Regulators or Comparators
LTC3455: Dual DC/DC Converter with USB Power Manager and Li-Ion Battery Charger
The addition of on-chip functional blocks such as regulators and comparators to Linear Technology’s USB compliant battery chargers provides a higher level of integration, enabling more compact solutions for today’s feature-rich portable devices.
LTC4063: Standalone Linear Li-Ion Battery Charger and 100mA LDO
Part No.
Max Charge Current
Input Voltage LDO
Switching Regulator(s) Comparator Standalone
Onboard Charge Termination
Thermal Regulation
Integrated Transistor Package
Li-Ion Linear Battery Chargers with Onboard Regulator or Comparator
LTC4063 1A 4.3–8V IOUT= 100mA VOUT= 1.2–4.2V
– – I Timer + C/x I I DFN-10
LTC4062 1A 4.3–8V – – IQ= 9µA I Timer + C/x I I DFN-10
LTC3455 1A 4.3–5.5V – IOUT1= 600mA IOUT2= 900mA
– I C/10 I I QFN-16
Part No.
Max. Charge Current
Input Voltage
Ideal Diode
Standby Current
IBAT Drain Current Standalone
Onboard Charge Termination
Thermal Regulation
Integrated Transistor Package
USB Power Manager and Li-Ion Linear Battery Charger with PowerPath Control and Onboard Switching Regulator
LTC3455 1A 4.3–5.5V I 50µA 2.5µA I C/10 I I QFN-24
VMAX is Connected to the Best Available Input Power Source(Wall Adapter, USB or Battery)
Switcher 1
Switcher 2
Hot Swap
USB PowerManager
USB PowerManager
BatteryCharger
Gain Block
VMAX Use to Power OtherDC/DCs and LDOs
5V Wall Adapter
VOUT11.8V Typical (600mA)
VOUT23.3V Typical (900mA)
Hot Swap Output3.3V Typical
USB Power3.9V–5 .3V
Li-Ion Battery3.3V–4.2V
Use for LDO or Low
BatteryIndicator
GND
PROG FB
OUT
BAT
LTC4063
TIMER
VCCVIN4.3V to 8V
VOUT3V Single Cell
Li-IonBattery
< 1A
CHARGE MONITORING / GAS GAUGING
Linear Battery Chargers with Charge Monitoring / Gas Gauging
08
LTC4068: USB Compliant Standalone Linear Li-Ion Battery Charger
Simplify charging and gas gauging with a single IC. Linear Technology offers battery chargers that include an output signal pin with a voltage proportional to the charge current for simple gas gauging (VPROG). For more sophisticated gas gauging, Linear offers the LTC4150.
Part No.
Batt. Cells (series)
Max Charge Current
Input Voltage
Charge Termination Method(s)
Integrated Pass Transistor
ICHARGE Monitor
End-of-Charge Signal
AC Present Signal
Thermal Reg.
Thermistor Interface Package
Li-Ion 4.2V/Cell Linear Battery Chargers–Standalone
LTC1734 1 0.7A 4.55–8V µController – I – – – – ThinSOT
LTC4065 1 0.75A 3.75–5.5V Timer + C/10 I I I – I – DFN-6
LTC4065A 1 0.75A 3.75–5.5V Timer + C/10 I I I I I – DFN-6
LTC4069 1 0.75A 3.75–5.5V Timer + C/10 I I I – I I DFN-6
LTC4057 1 0.8A 4.25–6.5V µController I I – – I – ThinSOT
LTC4059 1 0.9A 3.75–8V µController I I – – I – DFN-6
LTC4059A 1 0.9A 3.75–8V µController I I – I I – DFN-6
LTC4068 1 0.95A 4.25–6.5V C/x I I I I I – DFN-8
LTC4058 1 0.95A 4.25–6.5V C/10 I I I I I – DFN-8
LTC4061 1 1A 4.5–8V Timer + C/x I I I I I I DFN-10
LTC4062 1 1A 4.3–8V Timer + C/x I I I – I – DFN-10
LTC4063 1 1A 4.3–8V Timer + C/x I I – – I – DFN-10
LTC4053 1 1.25A 4.25–6.5V Timer + C/10 I I I I I I MS-10, DFN-10
LTC1733 1 1.5A 4.5–6.5V Timer + C/10 I I I I I I MS-10
Part No.
Sense Voltage Range Sense
Input Voltage
Charge Count Frequency
Shutdown Current
# Li-Ion Cells
# Nickel Cells
Charge Quantity
Charge Polarity Package
Gas Gauge–Coulumb Counter
LTC4150* ±50mV High Side 2.7–8.5V 32.55 Hz/V 1.5µA 1-2 3-6 I I MS-10
*See Page 17.
EN
Single Cell Li-Ion Battery Charger with C/5 Termination
1.65k1µF
VIN4.5V–6.5V
Li-IonBattery
LTC4068-4.2
600mA
CHRG
ACPR
ITERM
825Ω
GND
PROG
VCC BAT
LTC4065: Actual Size, Complete Solution
NO TRICKLE CHARGE 09
Low Current / Coin Cell Battery Chargers
LTC4054L: 150mA Standalone Li-Ion Battery Charger for Coin Cells
Linear Technology’s coin cell battery chargers enable highly accurate charging for low-capacity, charge-sensitive cells used in thin, compact devices such as Bluetooth headsets and hearing aids.
Part No.
Charge Current Range Input Voltage Standalone
Charge Termination Method
Thermal Regulation
Integrated Transistor
Charger Type Package
Coin Cell Li-Ion Battery Chargers
LTC4054L 10–150mA 4.25–6.5V I C/10 I I Linear ThinSOT
LTC4059 90–900mA 3.75–8V – µController I I Linear DFN-6
LTC1734L 10–180mA 4.55–8V – µController – – Linear ThinSOT
Li-Ion Linear Battery Chargers with No Trickle Charge
LTC4054X: Standalone, No Trickle Charge Linear Li-Ion Battery Charger with Thermal Regulation in ThinSOT
This extended family of linear battery chargers ensures proper system operation and startup for applications with a load current higher than the normal trickle charge current or a battery voltage below the normal trickle charge threshold.
Part No.
Batt. Cells (series)
Max Charge Current Input Voltage
Onboard Charge Termination
Integrated Pass Transistor
ICHARGE Monitor
End-of-Charge Signal
AC Present Signal
Thermal Regulation Package
Li-Ion 4.2V/Cell Linear Battery Chargers–Standalone, Fast Trickle Charge
LTC4054X 1 0.8A 4.25–6.5V C/10 I I I – I ThinSOT
LTC4068X 1 0.95A 4.25–6.5V C/x I I I I I DFN-8
LTC4058X 1 0.95A 4.25–6.5V C/10 I I I I I DFN-8
LTC4075X 1 0.95A 4.3–8V Dual Input USB or Adaper
C/x I I I I I DFN-10
GND
VCC
BAT
1.69k
0.1µF
4.2VLi-IonBattery
VIN 4.5V – 6.5V
90mA
LTC4054L-4.2
PROG
90mA Li-Ion Single Coin Cell Charger
GND
VCC
BAT
1.65k
0.1µF
4.2VLi-IonBattery
VIN 5V – 6.5V
600mA
LTC4054X–4.2
PROG
600mA No Trickle Charge Li-Ion Charger
LOW CURRENT / COIN CELL
THERMAL REGULATION & THERMISTOR INTERFACE
Battery Chargers with Thermal Regulation and/or Thermistor Interface
10
LTC4061: Standalone Linear Li-Ion Battery Charger
Linear Technology’s patented thermal regulation technology maximizes charge current without risking overheating during high-power operation or high ambient temperature conditions.
A thermistor interface allows battery temperature measurement, for temperature-qualified charging.
Part No.
Batt. Cells (series)
Cell Voltage
Max Charge Current Input Voltage
Integrated Pass Transistor
Charge Termination Method(s)
Thermal Reg.
Thermistor Interface Package
Li-Ion Linear Battery Chargers–Standalone
LTC4065/A 1 4.2V 0.75A 3.75–5.5V I Timer + C/10 I – DFN-6
LTC4069 1 4.2V 0.75A 3.75–5.5V I Timer + C/10 I I DFN-6
LTC4054/L/X 1 4.2V 0.8A 4.25–6.5V I C/10 I – ThinSOT
LTC4068/X 1 4.2V 0.95A 4.25–6.5V I C/10 I – DFN-8
LTC4058/X 1 4.2V 0.95A 4.25–6.5V I C/x I – DFN-8
LTC4075/X LTC4076 LTC4077
1 4.2V 0.95A 4.3–8V Dual Input USB or Adapter
I I I
C/x (USB C/x) C/x (USB C or C/5) C/10 (USB C/x)
I I I
– – –
DFN-10 DFN-10 DFN-10
LTC4061 1 4.2/4.4V 1A 4.5–8V I Timer + C/x I I DFN-10
LTC4062 1 4.2V 1A 4.3–8V I Timer + C/x I – DFN-10
LTC4063 1 4.2V 1A 4.3–8V I Timer + C/x I – DFN-10
LTC4064 1 4.0V 1A 4.25–6.5V I Timer + C/10 I I MS-10
LTC4053 1 4.2V 1.25A 4.25–6.5V I Timer + C/x I I MS-10 DFN-10
LTC1733 1 4.2V 1.5A 4.5–6.5V I Timer + C/10 I I MS-10
LTC4050 1 4.2V 2A 4.5–12V – Timer + C/10 – I MS-10
Li-Ion Linear Battery Chargers–Non-Standalone
LTC4057 1 4.2V 0.8A 4.25–6.5V I µController I – ThinSOT
LTC4059/A 1, 2 4.2V 0.9A 3.75–8V I µController I – DFN-6
USB Power Managers and Li-Ion Linear Battery Chargers with PowerPath Control
LTC4055 1 4.2V 1.25A 4.3–5.5V I Timer + C/10 I I QFN-16
LTC4066 1 4.2V 1.5A 4.35–5.5V I Timer + C/x I I QFN-24
LTC4085 1 4.2V 1.5A 4.35–5.5V I Timer + C/10 I I DFN-14
LTC4089/-1 1 4.2/4.1V 1.5A 4.35–5.5V I Timer + C/10 I I DFN-22
Li-Ion Pulse Battery Chargers–Standalone
LTC1730 1 4.1/4.2V 1A 4.5–12V I Timer + C/10 – I SO-8
NiCd / NiMH Linear Battery Charger–Standalone
LTC4060 1–4 1.5 2A 4.5–10V – T, t, dV – I DFN-16
RNTC10k
RHOT1%
7/8 VCC
1/2 VCC
3/160 VCC
Too Cold
Too Hot
Disable NTC
LTC4064
VCC
NTC
Thermistor Interface
Thermal Regulation
TEMPERATURE (°C)
700
800
900
1000
600
500
400
300
200
100
0
I BA
T (
mA
)
-50 0 50 100-25 25 75
Thermal ControlLoop in Operation
LTC4061: Actual Size, Complete Solution
SWITCHMODE & SMART CHARGERS 11
Switchmode and Smart Battery Chargers with Thermistor Interface
LTC4002: Standalone Li-Ion Switchmode Battery Charger
Linear Technology’s switchmode battery chargers utilize small, space-saving inductors to allow efficient charging from high input voltages while delivering high current.
Part No. TopologyVBAT Range
Battery Chemistry
Battery Pack(s)
Max Charge Current
Input Voltage
External MOSFET(s)
Thermistor Interface Package
Smart Battery Chargers
LTC4100 Switchmode SMBus
7–26V Li-Ion NiCd NiMH Lead-Acid
Single 4A 6–28V Synchronous I SSOP-24
LTC1760 Switchmode SMBus
6–28V Li-Ion NiCd NiMH Lead-Acid
Dual 4A 6–28V Synchronous I TSSOP-48
LTC1759 Switchmode SMBus
3–23V Li-Ion NiCd NiMH Lead-Acid
Single 8A 3–24V Synchronous I SSOP-36
Part No.
# Cells or VBAT Range
Battery Chemistry
Number of Cells (series)
Charge Termination Method(s)
Max* Charge Current
Input Voltage
External MOSFET(s)
Thermistor Interface Package
Switchmode Battery Chargers
LTC4002 1 or 2 cell Li-Ion 1–2 Timer 4A 4.7–24V P-channel I DFN-10, SO-8
LTC4011 1–16 cells NiCd NiMH 1–16 T, t, dV, dT/dt 4A 4.5–34V Synchronous I TSSOP-20
LTC4010 1–16 cells NiCd NiMH 1–16 T, t, dV, dT/dt 4A 4.5–34V Synchronous I TSSOP-16
LTC4007 3–4 cells Li-Ion 3–4 Timer + C/10 4A 6–28V Synchronous I SSOP-24
LTC4006 2–4 cells Li-Ion 2–4 Timer + C/10 4A 6–28V Synchronous I SSOP-16
LTC4008 3–28V Li-Ion NiCd NiMH Lead-Acid
Chemistry Dependent
µController 4A 6–28V Synchronous I SSOP-20
LTC4001 1 cell Li-Ion 1 Timer + C/x 2A 4–5.5V Synchronous I 4x4 QFN-16
6.8µH
22µF
10µF0.1µF
0.47µF
2.2k
68m
10kNTC
SENSE
GATE
BAT
CHRGLTC4002-4.2
VCC
VIN 5V– 22V
BAT
NTC GND
COMP
2kChargeStatus
T
Li-IonBattery
+ThermistorInterface
1.5A Single Cell Li-ion Battery Charger
LTC4002: Actual Size, Complete Solution
SMART BATTERY CHARGERS
Smart Battery Chargers
12
LTC1760: Dual Smart Battery System Manager
LTC4100: Smart Battery Charger Controller
Linear Technology’s smart battery chargers offer true plug-and- play operation independent of chemistry and cell configuration, built-in safety features, reliable battery detection and automatic charge management.
Part No.VBAT Range
Max Charge Current Standalone
Serial Bus Type
Single or Dual Battery Pack
Float Voltage Accuracy
Safety Limits (V&I)
AC Presence Output
Charger “ON” Status
Thermistor Interface Package
SMBus / SPI Battery Charger Controllers
LTC4100 7–26V 4A I SMBus 1.1
Single 0.8% I I pin I SSOP-24
LTC1760 5–28V 4A I SMBus 1.1
Dual 0.2% I I pin I TSSOP-48
LTC1759 3–21V 8A I SMBus 1.0
Single 1% I – pin I SSOP-36
LTC1960 6–28V 8A – SPI Dual 0.8% – – SPI – SSOP-36
SystemPower
SMBUS(Host)
LTC1760
Dual Battery Charger/Selector System Architecture
DC IN
SafetySignal 1
SMBus 1
SafetySignal 2
SMBus 2
3V to 5.5V
0.1µF13.7k
1.21k
0.033k
20µF
0.1µF
10µH
0.25BAT
5k
SCL
SDA
DCIN
CHGEN
SMBALERT
ACP
VDD
DCDIV
CHGEN
ACP
SMBALERT
SCL
SDA
THB
THA
ILIM
VLIM
DCIN
INFET
CLP
CLN
TGATE
BGATE
PGND
CSP
BAT
GND
LTC4100
10k
1.13k
54.9k
THERM
SCL
SDA
LTC1760: Actual Size, Complete Solution
SWITCHMODE BUCK-BOOST 13
Pulse Battery Chargers
LTC4052: Li-Ion Battery Pulse Charger with Overcurrent Protection
Linear Technology’s pulse battery chargers dissipate only 280mW while fast charging at 0.8A from a 9V current limited input source, whereas a linear charger dissipates as much as 4.8W. Unlike switchmode chargers where an inductor is used to achieve high efficiency, a pulse charger dissipates minimal heat without an inductor.
Part No.
Batt. Cells (series)
Max Charge Current
Input Voltage Standalone
Onboard Charge Termination
Integr. Pass Trans.
Over Current Protection
End-of-Charge Signal
AC Present Signal
Thermistor Interface Package
Li-Ion Pulse Battery Chargers
LTC1730 1 1A 4.5–12V I Timer + C/10 I I I – I SO-8
LTC4052 1 1.5A 4.5–10V I Timer + C/10 I I I I – MS-10
VIN
Single Cell 4.2V, 1A, Standalone Li-ion Pulse Battery Charger
1k 10k4.7? RSENSE0.051k
CTIMER0.1µF
LTC40521µF 0.047µF
0.022µF
VIN = 4.5V to 10Vwith 1A Current Limit
CHRG
ACPR
GATE
SENSE
BAT
GNDTIMER Li-IonBattery
Limits Maximum Current for Safety
Switchmode Buck-Boost Battery Chargers
LTC1980: Combination Battery Charger and DC/DC Converter
Linear Technology’s buck-boost battery chargers seamlessly charge a battery as its voltage varies below, above or equal to the input voltage.
Part No.VBAT Range
Battery Chemistry
Number of Cells (series)
Max Charge Current
Input Voltage
Integrated Switch Synchronous
Charge Termination Method(s) Package
Switchmode Buck-Boost (Step-Down/Step-Up) Battery Chargers
LT1512 1.5–20V NiCd NiMH Lead-Acid
1–18 0.8A 2.4–29V I – µController SO-8
LT1513 1.5–20V NiCd NiMH Lead-Acid
1–18 1.6A 2.4–29V I – µController DDPak TO220
LTC1980 2.85–10V NiCd NiMH Li-Ion
1–2 4A 4.1–12V – – Timer + C/10 SSOP-24
Li-Ion Charger and DC/DC Converter Using One IC
Li-IonBattery
POWER FLOW
ChargingBattery Operation
SystemPower
LDO/Switch
3.3V
UnregulatedWall AdapterInput (3V to 10V)
1.8V
1.5V
BAT-FET REG-FET
LTC1980
System LoadDC/DC
Converters
PULSE
SWITCHMODE BUCK14
Switchmode Buck Battery Chargers
LTC4008: 4A, High Efficiency, Multi-Chemistry Battery Charger
Linear Technology’s step-down (buck) battery chargers enable high efficiency charging from high input voltages for a variety of battery chemistries.
Part No.VBAT Range
Battery Chemistry
Number of Cells (series)
Max Charge Current
Input Voltage
Integrated Switch Synchronous
Charge Termination Method(s) Package
Switchmode Multi-Chemistry Buck (Step-Down) Battery Chargers
LT1510 2.5–26V NiMH NiCd SLA Li-Ion
1-12 Ni SLA 1-4 Li-Ion
1A 7–29V I – µController or LTC1729
SO-8, SSOP, SO-16
LT1769 2.5–26V NiMH NiCd SLA Li-Ion
1-12 Ni SLA 1-4 Li-Ion
2A 7–29V I – µController or LTC1729
TSSOP-20, SSOP-28
LT1511 2.5–26V NiMH NiCd SLA Li-Ion
1-12 Ni SLA 1-4 Li-Ion
3A 7–29V – – µController or LTC1729
SO-24
LTC4008 3–28V NiMH NiCd SLA Li-Ion
4-18 Ni SLA 2-6 Li-Ion
4A 6–28V – I µController SSOP-20
LT1505 2.5–23V NiMH NiCd SLA Li-Ion
1-12 Ni SLA 1-4 Li-Ion
8A 6.7–26V – I µController SSOP-28
Switchmode Li-Ion Buck Battery Chargers
LT1571 2.5–26V Li-Ion 1-2, adj 1.5A 6.2–27V I – LTC1729 SSOP-16, SSOP-28
LTC4001 2.5–5.5V Li-Ion 1 2A 4–5.5V I I Standalone (Timer + C/x)
4x4 QFN-16
LTC4002 2.5–8.4V Li-Ion 1-2 4A 4.7–22V – – Standalone (Timer)
DFN-10, SO-8
LTC4006 5–16.8V Li-Ion 2-4 4A 6–28V – I Standalone (Timer + C/10)
SSOP-16
LTC4007 7.5–16.8V Li-Ion 3-4 4A 6–28V – I Standalone (Timer + C/10)
SSOP-24
Input Switch
0.002
20µF
0.1µF
10µH
0.025
ICL
ACP/SHDN
FAULT
FLAG
NTC
RT
GND
DCIN
INFET
CLP
CLN
TGATE
BGATE
PGND
CSP
BAT
PROG
LTC4008
0.0047µF
Thermistor10kNTC
100k100k
VLOGIC
DCIN0V–28V
5.1k
3.01k
150k
3.01k
SystemLoad
Li-IonBattery
ChargingCurrentMonitor
26.7k
32.4k
0.47µF
4A Synchronous Multi-Chemistry Switchmode Battery Charger Controller
LTC4008: Actual Size, Complete Solution
SWITCHMODE BUCK 15
VBAT
4.93k
22µF
4.2V
4.2V2 Li-Ion
AdapterCurrent Sense
5k
VIN (Adapter Input)11V –28V
To MainSystem Power
MBRD340
1µF
500Ω
10µF
0.47µF
200Ω 200Ω
20H
MBR0540TMBRD340
0.033ΩBattery Current
Sense
2A Monolithic Lithium-Ion Switchmode Battery Charger
BOOST
CLN
SENSE BAT
LT1769VCC
SPIN
GND CLP
PROG
SW
UV
Input Switch
0.033
20µF
15nF
10µH
0.025
DCIN
CHG
ACP/SHDN
IMON
NTC
RT
GND
INFET
CLP
CLN
TGATE
BGATE
PGND
CSP
BAT
LTC4006
Thermistor10kNTC
ChargingCurrent Monitor
100k
VLOGIC
DCIN0V–28V
3A5k
309k
System Load
Li-IonBattery
32.4k
0.47µF
0.0047µF
4A Lithium-Ion Switchmode Battery Charger
0.1µF
Switchmode Buck Battery Chargers
LT1769: 2A Monolithic Switchmode Battery Charger
LTC4006: 4A High Efficiency, Standalone Li-Ion Switchmode Battery Charger
Part No. Description ISUPPLY VOS IBIAS VS Range Packages
Low Side Current Sense Amplifiers
LT1490A/91A Dual/Quad Rail-to-Rail Over-The-Top® 50µA 500µV 8nA 2–44V DFN-8, DIP-8, MSOP-8, SO-8 DIP-14, SO-14
LT1636 Over-The-Top, Single Supply 55µA 225µV 8nA 2.6–44V DFN-8, DIP-8, MSOP-8, SO-8
LT1638/39 Dual/Quad, Rail-to-Rail Over-The-Top 230µA 600µV 50nA 2.2–44V DFN-8, DIP-8, MSOP-8, SO-8 DIP-14, SO-14
LTC2054/55 Single/Dual Zero-Drift 3V, 5V Operation 150µA 3µV 3nA 2.7–12V ThinSOT, DFN-8, MSOP-8
LT6010/11/12 Single/Dual/Quad Rail-to-Rail Output 150µA 35µV 0.11nA 2.7–40V DFN-8, SO-8
Part No.
Input Voltage Range
Directional Sense
Offset Voltage (Max @ 25°C)
Offset Voltage Drift (Typ)
Large Signal Step Response Gain Configuration
Separate Supply Input Package
High Side Current Sense Amplifiers
LT6100 4.1–48V Uni-directional 300µV 0.5µV/°C 50µs 5 Gain Settings Yes DFN-8, MSOP-8
LTC6101 4–60V Uni-directional 300µV 1µV/°C 1µs Adj w/ 2 Resistors Optional ThinSOT, MSOP-8
LTC6101HV 5–100V Uni-directional 300µV 1µV/°C 1µs Adj w/ 2 Resistors Optional ThinSOT, MSOP-8
LT1787 2.5–36V Bi-directional 75µV 0.5µV/°C 15µs Fixed Av=8 No SO-8, MSOP-8
LT1787HV 2.5–60V Bi-directional 75µV 0.5µV/°C 15µs Fixed Av=8 No SO-8, MSOP-8
Part No. DescriptionSupply Voltage
Prop Delay Typ
ISUPPLY Typ Package
Comparator & Reference Combinations
LTC1440/41/42 Single/Dual Comparator & Reference 2–11V 8µs 2.1µA MSOP-8, SO-8, DIP-8, DFN-8
LTC1443/44/45 Quad Comparator & Reference 2–11V 4µs 5.5µA DIP-16, SO-16, DFN-16
LTC1540 Nanopower Comparator & Reference 2–11V 50µs 0.3µA MSOP-8, SO-8, DFN-8
LTC1541 Micropower Amplifier, Comparator & Reference 2.5–12.6V 8µs 5µA MSOP-8, SO-8, DFN-8
LTC1842/43 Ultralow Power Dual Comparators with Reference 2.5–11V 4µs 3.5µA SO-8
LTC1998 1% Voltage Monitor, Ideal for Li-Ion Batteries 1.5–5.5V 150µs 2.5µA ThinSOT
LT6700-1/-2/-3 Low Voltage Dual Comparator & 400mV Reference 1.4–18.5V 18µs 6.5µA ThinSOT, DFN-6
HIGH SIDE & LOW SIDE BATTERY CURRENT SENSING / BATTERY MONITORING
Precision Current Sense Amplifiers
16
Linear Technology offers precision high-side current sense amplifiers with reverse battery protection, low quiescent current, separate power supply inputs and tiny packages.
For low-side current sensing, the best solutions are micropower, rail-to-rail input amplifiers with low input bias current and low offset voltage.
Comparator and Voltage Reference Building Blocks
The combination of micropower comparators and a voltage reference in a single package provides an ideal building block for battery monitoring. Typical applications include circuits for gas gauge battery monitoring, low-battery load reduction, backup battery switchover and window comparators with hysteresis.
0A to 33A High Side Current Monitor
VOUT = 2.5VISENSE = 33V
4.1V to 48VSupply
VCC
VEE
VS+
VS–
Load
3V
VOUT
220pF
RSENSE
3mΩ
LT6100
SUPPORT DEVICES 17
BACKUP
2.7M
1M
2.7M
1M
1µF
1µF
4.7µF
5V300mA
To PowerManagement
0.01µF
IN1 OUT
SS
SHDN
LBO1
LB02
DROPOUT
BIASCOMP
LBI1
IN2
LBI2
GND
LT1579-5
5V Dual Battery Backup Supply
OVP
BAT
SENSE
GND
VCC
VC
STATUS
NTC
SW
SENSE
OVP
GND
BOOST
PROG
VC
BAT
LTC1729-4.2
LT1510-5
1µF
0.22µF
L110µH
0.1µF
OPTION: Tie resistor to status for charge termination atlow charging current
10k NTC Thermistor
0.1µF
1µF
1k
COUT22µF
200Ω
300Ω 6.19kCIN10µF
Input Power8.2V– 20V
MMBD914L
VCC
1.4k
4.2V
Combination Battery Charger Termination Controller (LTC1729) and Switchmode Charger
4.7µFCHG
DISCHG
RL
4.7µF
Charger
Load
CF–
CF+ INT
CLR
POL
SHDN
SENSE– SENSE+
LTC4150
VDD RL
RSENSE
GND
µP
Coulomb Counter
Battery Charger Support Devices
LTC4150: Coulomb Counter and Battery Gas Gauge
Package: MSOP-10
LTC1729: Li-Ion Battery Charger Termination Controller
Package: MSOP-8, SO-8
LT1579: 300mA Dual Input Smart Battery Backup Regulator
Package: SSOP-16, SO-16, SO-8
Lin
ear
Bat
tery
Ch
arg
ers
Sel
ecto
r G
uid
e
Bat
tery
Cha
rge
Term
inat
ion
& In
teg
ratio
nS
tatu
s S
igna
lsTe
mp
erat
ure
Co
ntro
lP
art
Num
ber
Pag
e
Battery Cells (series)
Battery Charge Current (max), A
Standalone
Charge Termination Method(s)
Integrated Pass Transistor
ICHARGE
Monitor
End-of-Charge Signal
AC Present Signal
Thermal Regulation
Thermistor Interface
Package
Mos
tIn
teg
ratio
n/F
eatu
res
Le
ast
Li-I
on 4
.2V
/Cel
l Lin
ear
Bat
tery
Cha
rger
s w
ith P
ower
Pat
h C
ontr
ol
11.
5I
I5
I–
I–
II
DFN
-22
LTC
4089
/-1
03, 0
4, 0
5, 0
6, 1
0
11.
5I
I5
II
II
II
QFN
-24
LTC
4066
03, 0
4, 0
6, 1
0
11.
25I
I3
I–
II
II
QFN
-16
LTC
4055
03, 0
4, 0
6, 1
0, 2
0
11.
5I
I3
I–
II
II
DFN
-14
LTC
4085
03, 0
4, 0
6, 1
0
Li-I
on 4
.2V
/Cel
l Lin
ear
Bat
tery
Cha
rger
s
11
II
5I
II
II
ID
FN-1
0LT
C40
6104
, 05,
06,
08,
10,
20
11
II
5I
II
–I
–D
FN-1
0LT
C40
6204
, 06,
07,
08,
10,
20
11
II
5I
II
–I
–D
FN-1
0LT
C40
6304
, 07,
08,
10
12
II
5–
–I
I–
IM
S-1
0LT
C40
5004
, 10
10.
95I
I1,
2I
II
II
–D
FN-1
0LT
C40
75/7
6/77
/X04
, 06,
09,
10
11.
25I
I5
II
II
II
MS
-10
DFN
-10
LTC
4053
04, 0
6, 0
8, 1
0, 2
0
10.
95I
I2
II
II
I–
DFN
-8LT
C40
68/X
04, 0
6, 0
8, 0
9, 1
0
10.
95I
I1
II
II
I–
DFN
-8LT
C40
58/X
04, 0
6, 0
8, 0
9, 1
0
11.
5I
I5
II
II
II
MS
-10
LTC
1733
04, 0
8, 1
0, 2
0
1, 2
2I
I5
––
II
––
MS
-10
LTC
1732
04, 0
5
1, 2
2I
I5
––
I–
––
MS
-8LT
C17
3104
, 05,
20
10.
8I
I1
II
I–
I–
Thin
SO
TLT
C40
54/X
04, 0
6, 0
9,10
, 20
10.
75I
I5
II
II
I–
DFN
-6LT
C40
65/A
04, 0
6, 0
8, 1
0
10.
75I
I5
II
I–
II
DFN
-6LT
C40
6904
, 06,
08,
10
10.
7I
I3
––
I–
––
Thin
SO
TLT
C40
5604
, 20
10.
9–
I4
II
–I
I–
DFN
-6LT
C40
59/A
05, 0
6, 0
8, 0
9, 1
0
10.
8–
I4
II
––
I–
Thin
SO
TLT
C40
5705
, 06,
08,
10
10.
7–
I4
–I
––
––
Thin
SO
TLT
C17
3405
, 08,
20
Li-I
on 4
.1V
/Cel
l Lin
ear
Bat
tery
Cha
rger
s
11.
5I
I5
II
II
II
MS
-10
LTC
1733
04, 0
8, 1
0, 2
0
1, 2
2I
I5
––
II
––
MS
-10
LTC
1732
04, 0
5
1, 2
2I
I5
––
I–
––
MS
-8LT
C17
3104
, 05,
20
10.
7–
I4
–I
––
––
Thin
SO
TLT
C17
3405
, 08,
20
Li-I
on 4
.0V
/Cel
l Lin
ear
Bat
tery
Cha
rger
11
II
5I
II
II
IM
S-1
0LT
C40
6405
, 06,
10
Li-I
on C
oin
Cel
l Bat
tery
Cha
rger
s
10.
15I
I1
II
I–
I–
Thin
SO
TLT
C40
54L
09
10.
18–
I4
–I
––
––
Thin
SO
TLT
C17
34L
09
Li-I
on P
ulse
Bat
tery
Cha
rger
s
11.
3I
I5
II
II
––
MS
-10
LTC
4052
13
11.
3I
I5
I–
II
–I
SS
OP
-16
SO
-8
LTC
1730
10, 1
3
1 C
urre
nt C
/10
2 C
urre
nt C
/x 3
Tim
er 4
µC
ontr
olle
r 5
Tim
er w
ith C
/10
or C
/x In
dic
atio
n
18
Bat
tery
Cha
rge
Term
inat
ion
& In
teg
ratio
nS
tatu
s S
igna
lsTe
mp
erat
ure
Co
ntro
lP
art
Num
ber
Pag
e
Battery Cells (series)
Battery Charge Current (max), A
Standalone
Charge Termination Method(s)
Integrated Pass Transistor
ICHARGE
Monitor
End-of-Charge Signal
AC Present Signal
Thermal Regulation
Thermistor Interface
Package
Mos
tIn
teg
ratio
n/F
eatu
res
Le
ast
NiM
H /
NiC
d B
atte
ry C
harg
ers
1-16
4I
I6
––
II
–I
TSS
OP
-20
LTC
4011
02, 1
1
1-16
4I
I6
––
II
–I
TSS
OP
-16
LTC
4010
02, 1
1
1-4
2I
I8
––
II
–I
DFN
-16,
TS
SO
P-1
6LT
C40
60
Line
ar
02, 1
0
Li-I
on S
witc
hmod
e B
atte
ry C
harg
ers
12
II
5I
II
––
I4x
4 Q
FN-1
6LT
C40
0111
, 14
3-4
4I
I5
––
II
–I
SS
OP
-24
LTC
4007
11, 1
4
2-4
4I
I5
––
II
–I
SS
OP
-16
LTC
4006
11, 1
4, 2
0
1-2
2I
I5
––
–I
––
SS
OP
-24
LTC
1980
13, 2
0
1-2,
adj
1.5
–I
4, 7
I–
I–
––
SS
OP
-16
SS
OP
-28
LT15
7114
1-2
4I
I3
––
I–
–I
DFN
-10,
SO
-8LT
C40
0211
, 14
Bat
tery
Cha
rge
Term
inat
ion
& In
teg
ratio
nS
tatu
s S
igna
lsTe
mp
erat
ure
Co
ntro
lP
art
Num
ber
Pag
e
VBAT Range
Battery Charge Current (max), A
Standalone
Charge Termination Method(s)
Integrated Pass Transistor
ICHARGE
Monitor
End-of-Charge Signal
AC Present Signal
Thermal Regulation
Thermistor Interface
Package
Mos
tIn
teg
ratio
n/F
eatu
res
Le
ast
Sm
art
Bat
tery
Cha
rger
s
3-21
V8
–S
MB
us4
––
–I
–I
SS
OP
-36
LTC
1759
02, 1
1, 1
2, 2
0
5-28
V4
IS
MB
us4
––
––
–I
TSS
OP
-48
LTC
1760
11, 1
2, 2
0
6-28
V8
–S
PI4
––
––
––
SS
OP
-36
LTC
1960
02, 1
2, 2
0
7-26
V4
~S
MB
us4
––
–I
–I
SS
OP
-24
LTC
4100
02, 1
1, 1
2, 2
0
Lead
Aci
d,
NiM
H /
NiC
d,
Li-I
on S
witc
hmod
e B
atte
ry C
harg
ers
2.5-
23V
8–
I4,
7–
–I
––
–S
SO
P-2
8LT
1505
02, 1
4, 2
0
2.5-
26V
3–
I4,
7I
––
––
–S
O-2
4LT
1511
02, 1
4, 2
0
3-28
V4
–I
4–
–I
I–
IS
SO
P-2
0LT
C40
0802
, 11,
14
1.5-
20V
0.75
–I
4, 7
I–
––
––
SO
-8
LT15
1202
, 13
1.5-
20V
2–
I4,
7I
––
––
–D
D P
ak, T
O-2
20LT
1513
02, 1
3
2.5-
26V
2–
I4,
7I
––
––
–TS
SO
P-2
0, S
SO
P-2
8LT
1769
02, 1
4, 1
5
2.5-
26V
1–
I4,
7I
––
––
–S
O-8
, SS
OP,
SO
-16
LT15
1002
, 14,
17,
20
1 C
urre
nt C
/10
2 C
urre
nt C
/x 3
Tim
er 4
µC
ontr
olle
r 5
Tim
er w
ith C
/10
or C
/x In
dic
atio
n 6
T, t
, d
V, d
T/d
t 7
for
Li-I
on T
erm
inat
or u
se L
TC17
29 8
dV,
t,
V, T
Sw
itch
mo
de
Bat
tery
Ch
arg
ers
Sel
ecto
r G
uid
e
Sw
itch
mo
de
Mu
lti-
Ch
emis
try
and
Sm
art
Bat
tery
Ch
arg
ers
Sel
ecto
r G
uid
e
19
Switchmode Battery Chargers
Device
DN244 Simple Li-Ion Charge Termination Using the LT1505 LT1505
LT Magazine Fast Rate Li-Ion Battery Charger LT1505
AN68 LT1510 Design Manual LT1510
DN242 Li-Ion Charge Termination IC Interfaces with PWM Switchers LT1510
DN111 LT1510 High Efficiency Lithium-Ion Battery Charger LT1510
DN194 New Charger Topology Maximizes Battery Charging Speed LT1511
DN144 LT1511 Low Dropout, Constant-Current/Constant-Voltage 3A Battery Charger LT1511
DN124 Fused Lead Battery Charger ICs Need No Heat Sinks LT1510/11
LT Magazine 1.5A and 3A Fast Charger ICs Charge All Battery Types Including Lithium-Ion LT1510/11
LT Magazine Feature-Rich Battery Charger that Manages Both Battery Charging and Bus Voltage Regulation LTC1980
LT Magazine Next Generation No Compromise Battery Chargers LTC4006/7/8
Linear Battery Chargers
DN239 A Miniature, Low Dropout Battery Charger for Lithium-Ion Batteries LTC1731
LT Magazine Low Dropout Linear Li-Ion Charge Controllers Prevent Overcharging, Save Board Space LTC1731/2
LT Magazine LTC1733: Thermal Regulation Maximizes Lithium-Ion Battery Charging Rate Without Risk of Overheating LTC1733
DN283 Li-Ion Linear Charger Allows Fast, Full Current Charging While Limiting PC Board Temperature to 85°C LTC1733
LT Magazine
DN250
Very Low Cost Li-Ion Battery Charger Requires Little Area and Few Components LTC1734
A Very Low Cost SOT-23 Li-Ion Battery Charger Requires Little Area and Few Components
LT Magazine Decrease Li-Ion Battery Charge Time with a Monolithic Charger that Prevents Overheating LTC4054
LT Magazine New Standalone Linear Li-Ion Battery Chargers LTC4061, LTC4062
USB Battery Chargers
LT Magazine Complete USB Power Manager, Li-Ion Charger and Two Buck Converters in a 4mmx4mm QFN LTC3455
DN1008 Simple, Efficient, All-in-One USB Power Management IC Solution LTC3455
LT Magazine Compact Solution Uses USB Power to Run a Device and Simultaneously Charge its Battery LTC4053, LTC4410
LT Magazine Complete USB Solution Provides PowerPath Control and Input Current Limiting while Charging a Li-Ion Battery LTC4056
LT Magazine USB Power Controller/Charger Reduces Both Design Time and Battery Charge Time LTC4055
DN320 New ICs Simplify Battery Charging from the USB LTC4053
DN336 Advanced Topology USB (Intermediate Bus) Battery Charger Optimizes Power Utilization for Faster Charging LTC4055
Smart Battery Chargers
LT Magazine Smart Battery Charger Is Programmed via the SMBus LTC1759
DN342 Dual Smart Battery Charger Simplifies Battery Backup for Servers LTC1760
DN277 Dual Battery Power Manager Increases Run Time by 12% and Cuts Charge Time in Half LTC1960
DN1005 Smart Battery Charger Reduces Circuit Size LTC4100
Power Path Controllers
LT Magazine Low Voltage PowerPath Driver Switches from a 3.3V or 5V Supply to Battery Backup LTC1473L
LT Magazine Compact Solution Uses USB Power to Run a Device and Simultaneously Charge its Battery LTC4410, LTC4053
DN1003 Ideal Diode/PowerPath Controller Eliminates Energy Wasting Diodes in Power OR-ing Applications LTC4412
DN356 Dual Monolithic Ideal Diode Manages Multiple Power Inputs LTC4413
Power Over Ethernet
DN361 Simple Battery Circuit Extends Power over Ethernet (PoE) Peak Current LTC4055
Further ReadingOnline at www.linear.com
20
, LTC, LT, and Over-The-Top are registered trademarks and PowerPath and ThinSOT are trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. © 2007 Linear Technology Corporation.
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