DEMO MANUAL DC2703A-A-KIT LT8491 High Voltage Buck-Boost ...
Transcript of DEMO MANUAL DC2703A-A-KIT LT8491 High Voltage Buck-Boost ...
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DEMO MANUAL DC2703A-A-KIT
Rev. 0
DESCRIPTION
LT8491 High Voltage Buck-Boost Battery Charge Controller
with Maximum Power Point Tracking (MPPT) and I2C
The DC2703A-A-KIT contains the DC2703A (LT®8491 demo board) and DC1613A (USB-to-I2C controller). Together they provide a high performance buck-boost battery charger converter with an I2C interface. The LT8491 implements a maximum power point track-ing (MPPT) function and flexible charging profiles, suit-able for most battery types such as flooded and sealed lead acid batteries and Li-Ion batteries. A Microsoft Windows-Based GUI (Graphical User Interface) appli-cation called “simpleLT8491” is provided which can be downloaded here.
The DC2703A-A-KIT demo board is configured for 17V to 54V input voltage range and the power source can be a solar panel with 36 to 72 cells (up to 200W) or a DC voltage source. The LT8491 converter can operate from input voltages above, below or equal to the battery volt-age. Two input connectors are provided. An ideal diode controller LTC®4359 protects the DC power supply output from being back fed from the solar panel. This allows, for example, a 24VDC supply to be plugged in while a solar panel with higher voltage is being used to power the circuit. The DC2703A-A-KIT demo board output is set up for charging a 12V SLA battery with up to 16.6A charge current. The DC2703A-A-KIT demo board can be modified to support much higher output voltage, with modifications including higher voltage rating output side MOSFETs and capacitors.
The LT8491 includes a slave I2C compatible interface for digital control of the charger settings and digital readouts of charger telemetry and status. A Microsoft Windows-Based GUI (Graphical User Interface) application is pro-vided for this demo board, which makes it very easy to read charger telemetry and status data, as well as the All registered trademarks and trademarks are the property of their respective owners.
ability to change the charging algorithm by writing to the appropriate configuration registers. The LT8491 EEPROM on the DC2703A-A-KIT demo board is programmed with the onboard resistor values to accurately read charger telemetry and status registers data.
On-chip logic provides automatic true power point track-ing (MPPT) for solar powered applications. The MPPT function not only continuously tracks the maximum power point, but also periodically sweeps the input panel voltage in order to select the correct maximum on the power curve. In doing so, an increase in power harvested from the panel during partial shade conditions is possible when multiple peaks occur on the power curve. During periods of low light, a low power mode allows the char-ger to deliver a small charge current even if there is not enough light for the MPPT function to operate.
An RJ25 modular jack can be used to connect an exter-nal NTC temperature sensor mounted at the battery. This allows temperature compensation of the charge voltage, which is important for lead acid batteries. The same con-nector can be used for remote sensing of battery voltage, to compensate for voltage drops in long battery cables. The onboard LED displays the charge state.
The LT8491 data sheet gives a complete description of the device, operation and application information. The data sheet must be read in conjunction with this demo man-ual for DC2703A-A-KIT. The LT8491EUKJ is assembled in a 64-lead (7mm × 11mm) plastic QFN package with a thermal pad underneath the chip. Proper board layout is essential for maximum thermal performance.
Design files for this circuit board are available.
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DEMO MANUAL DC2703A-A-KIT
Rev. 0
Figure 1. Efficiency vs Output Battery Charge Current (DC Input: VIN = 28V, VOUT = 14.2V)
Figure 2. Input and Output Currents vs Input Voltage (DC Input Current Limited to 10A, VOUT = 13.6V)
EFFICIENCY
DISSIPATION
CHARGE CURRENT (A)0 2 4 6 8 10 12 14 16 18
90
91
92
93
94
95
96
97
98
99
100
0
2
4
6
8
10
12
14
16
18
20
EFFI
CIEN
CY (%
)
DISSIPATION (W)
DC2703A-A-KIT F01
IOUT
IIN
INPUT VOLTAGE (V)10 15 20 25 30 35 40 45 50 55
0
2
4
6
8
10
12
14
16
18CU
RREN
T (A
)
DC2703A-A-KIT F02
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VIN Input Supply Range Note: Output Power Is Limited by Input Current Limit When VIN < 24V (See Figure 2)
17 30 54 V
VOUT Charge Voltage 14.2 V
IIN Maximum Input Current 10 A
IOUT Maximum Output Current VIN > 24V, VOUT = 12V 16.6 A
fSW Switching Frequency 150 kHz
POUT/PIN Efficiency at DC Input VIN = 48V, VOUT = 14.2V, IOUT = 15A VIN = 36V, VOUT = 14.2V, IOUT = 15A VIN = 24V, VOUT = 14.2V, IOUT = 8A
95.6 96.1 97.1
% % %
Note 1: VIN MIN and MAX specifications are for solar panel as an input power source. For further information refer to data sheet section: HW Config: Solar Panel Powered Charging. For DC supply as an input power source, VIN MIN can be as low as 10V.
TYPICAL PERFORMANCE CHARACTERISTICS
PERFORMANCE SUMMARY Specifications are at TA = 25°C
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DEMO MANUAL DC2703A-A-KIT
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1. Connect a 12V lead acid battery to the VBAT connec-tor (J2), making sure that the polarity is correct. A suitable battery size is a 150Ah 12V deep cycle sealed lead acid battery, but also smaller 12V lead acid batter-ies can be used for testing the charging functions. Use a short battery cable that is rated for 15A or higher.
2. Connect the solar panel to the PANEL IN connec-tor (J1), making sure that the polarity is correct. A suitable panel is a 200W 60 cell solar panel, but any panel with 36 to 72 cells (54V maximum open circuit voltage) can be used.
3. Download and install the Windows-Based GUI (Graphical User Interface) application called “sim-pleLT8491”. Refer to the GUI application user guide (from the GUI window select Help > User Guide) to explore the full functionality of the GUI. The communi-cation between the Windows-Based PC and DC2703A-A-KIT demo board is done using either a DC1613A or a DC2026C Linduino®, which are USB-based controllers. Connect the DC1613A or the DC2026C Linduino to the PC USB port using a USB cable. If using a DC1613A, connect the output of the DC1613A to the DC1613A PORT connector (J9) on the DC2703A-A-KIT demo board. If using a DC2026C Linduino, connect the out-put of the DC2026C Linduino to the Linduino HDR con-nector (J10) on the DC2703A-A-KIT demo board.
Note: If using the DC2026C Linduino, the user will need to make sure that it has the appropriate sketch loaded before interfacing with the DC2703A-A-KIT demo board. Refer to the GUI application user guide on how to load the appropriate sketch.
4. Point the solar panel towards sunlight to power the charger and monitor the MPPT charger function under different conditions, using ampere meters and volt-meters and other test equipment as needed. Run the
“simpleLT8491” application by selecting it from the Windows START menu. In the GUI window under “LT8491 Address” section, it will display “Address 1 0x10” indicating that LT8491 with I2C chip address 0x10 has been detected. Click the Poll or One Shot but-ton to display the charger telemetry and status regis-ters data in the GUI Dashboard tab. In the event the GUI application is running but the DC2703A-A-KIT demo board is power cycled or LT8491 is reset, reconnect the GUI application and demo board by selecting from GUI window “Tools > Connect Interface”.
Note: By default, the charger will not start unless the output battery voltage is above 4.5V. However, this threshold can be changed by writing to CFG_UV_S0/CFG_S0_UV configuration registers if needed. For further information refer to I2C Register Descriptions: CFG_UV_S0, CFG_S0_UV in the data sheet.
5. The charger will also work with a DC power supply connected to the DC IN connector (J7). Disconnect the solar panel before turning on the DC supply. (The charger can operate from both power sources simul-taneously. However, the MPPT function will be disabled while there is DC voltage on the DC IN input, so the solar panel may not be operating at its maximum power point if the charger is also powered from the DC IN connector.) A suitable supply is a 24VDC supply that can deliver at least 12A, but any DC power supply that has an output voltage in the range of 10V to 54V and is able to deliver 250W power or 12A current can be used for evaluation.
6. Read the LT8491 data sheet for more details on the function of the circuit and how to change the charging algorithm by writing to the appropriate configuration registers via the I2C interface.
QUICK START PROCEDURE
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DEMO MANUAL DC2703A-A-KIT
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Figure 3. SOLAR Panel and SLA Battery Connections
DC2703A-A-KIT F03
SOLAR PANEL
SLA BATTERY
+–
+
–
QUICK START PROCEDURE
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DEMO MANUAL DC2703A-A-KIT
Rev. 0
Figure 4. DC2703A-A-KIT Connected to DC1613A and Windows-Based GUI “simpleLT8491” Application
QUICK START PROCEDURE
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DEMO MANUAL DC2703A-A-KIT
Rev. 0
ITEM QTY REFERENCE PART DESCRIPTION MANUFACTURER/PART NUMBER
Required Circuit Components
1 4 C2, C6, C11, C12 CAP., 10μF, X7R, 100V, 20%, 2220, STACKED TDK, CKG57NX7R2A106M
2 1 C3 CAP., 150μF, ALUM.ELECT., 25V, 20%, 8mm × 10.5mm SMD SUN ELECTRONIC INDUSTRIES, 25HVH150M
3 2 C4, C8 CAP., 33μF, ALUM. ELECT., 63V, 20%, 10mm × 10.5mm SMD SUN ELECTRONIC INDUSTRIES, 63HVH33M
4 1 C13 CAP., 0.001μF, X7R, 100V, ±10%, 1206 WURTH ELEKTRONIK, 885012208106
5 1 C15 CAP., 1000pF, X7R, 16V, 10%, 0603 AVX, 0603YC102KAT2A
6 2 C16, C21 CAP., 0.01μF, X7R, 100V, 10%, 0603 WURTH ELEKTRONIK, 885012206114
7 2 C17, C18 CAP., 0.0033μF, X7R, 50V, 10%, 0603 WURTH ELEKTRONIK, 885012206086
8 2 C19, C20 CAP., 0.220μF, X7R, 16V, 10%, 0603 WURTH ELEKTRONIK, 885012206048
9 2 C22, C24 CAP., 0.470μF, X7R, 16V, 10%, 0603 WURTH ELEKTRONIK, 885012206050
10 1 C23 CAP., 2.2μF, X7R, 100V, 10%, 1210 AVX, 12101C225KAT2A
11 3 C26, C34, C37 CAP., 0.1μF, X7R, 16V, 10%, 0603 AVX, 0603YC104KAT2A
12 2 C27, C32 CAP., 1μF, X7R, 16V, 10%, 0603 WURTH ELEKTRONIK, 885012206052
13 1 C28 CAP., 1μF, X7R, 100V, 10%, 1210 AVX, 12101C105KAT2A
14 3 C29, C30, C31 CAP., 4.7μF, X5R, 16V, 20%, 0603 MURATA, GRM188R61C475MAAJD
15 2 C33, C35 CAP., 0.0047μF, X7R, 16V, 10%, 0603 WURTH ELEKTRONIK, 885012206038
16 1 C36 CAP., 220pF, C0G, 50V, 5%, 0603 AVX, 06035A221JAT2A
17 1 C38 CAP., 0.0068μF, X7R, 50V, 10%, 0603 WURTH ELEKTRONIK, 885012206088
18 1 C39 CAP., 0.068μF, X7R, 16V, 10%, 0603 WURTH ELEKTRONIK, 885012206045
19 2 D3, D4 DIODE, RECT., 200V, 1A, SOD-123F CENTRAL SEMI., CMMR1U-02 TR
20 2 D6, D7 DIODE, SCHOTTKY, 100V, 1A, POWERDI-123 DIODES INC., DFLS1100-7
21 1 L1 IND., 10μH, SHIELDED, HIGH CURRENT, 15%, 30A, 2.4mΩ WURTH ELEKTRONIK, 7443641000
22 2 M1, M6 XSTR., MOSFET, N-CH, 60V, PG-TDSON-8 INFINEON, BSC028N06NS
23 1 M2 XSTR., MOSFET, N-CH, 60V, 8-PIN PG-TDSON FL INFINEON, BSC016N06NSATMA1
24 2 M3, M4 XSTR., MOSFET, N-CHAN, 25V, PG-TDSON-8 INFINEON, BSC010NE2LSI
25 1 R1 RES., 5mΩ, 1%, 2W, 2512 TT ELECTRONICS, LRMAT2512-R005FT4
26 1 R2 RES., SENSE, 3mΩ, 1%, 2W, 2512 TT ELECTRONICS, LRMAT2512-R003FT4
27 1 R4 RES., 1.2Ω, 5%, 1/4W, 1206 VISHAY, CRCW12061R20JNEA
28 1 R5 RES., 30.1k, 1%, 1/10W, 0603 VISHAY, CRCW060330K1FKEA
29 1 R6 RES., 8.06k, 1%, 1/10W, 0603 YAGEO, RC0603FR-078K06L
30 4 R7, R9, R10, R47 RES., 1Ω, 1%, 1/10W, 0603 YAGEO, RC0603FR-071RL
31 7 R8, R11, R23, R29, R36, R44, R66
RES., 0Ω, 1/10W, 0603 BOURNS, CR0603-J/-000ELF
32 8 R12, R18, R21, R22, R26, R27, R41, R63
RES., 10Ω, 1%, 1/10W, 0603 VISHAY, CRCW060310R0FKEA
33 1 R13 RES., 3mΩ, 1%, 3W, 1225, METAL, SENSE SUSUMU, KRL6432E-M-R003-F-T1
34 6 R17, R49, R55, R58, R73, R74
RES., 4.99k, 1%, 1/10W, 0603 STACKPOLE, RMCF0603FT3R30
35 1 R20 RES., 3.3Ω, 1%, 1/10W, 0603 STACKPOLE, RMCF0603FT3R30
36 1 R30 RES., 196k, 1%, 1/10W, 0603 VISHAY, CRCW0603196KFKEA
37 1 R31 RES., 102k, 1%, 1/10W, 0603 VISHAY, CRCW0603102KFKEA
38 1 R37 RES., 5.9k, 1%, 1/10W, 0603 PANASONIC, ERJ3EKF5901V
39 2 R38, R65 RES., 53.6k, 1%, 1/10W, 0603 VISHAY, CRCW060353K6FKEA
PARTS LIST
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ITEM QTY REFERENCE PART DESCRIPTION MANUFACTURER/PART NUMBER
40 3 R39, R56, R59 RES., 10k, 1%, 1/10W, 0603 VISHAY, CRCW060310K0FKEC
41 1 R40 RES., 3.48k, 1%, 1/10W, 0603 VISHAY, CRCW06033K48FKEA
42 1 R42 RES., 1.1k, 1%, 1/10W, 0603 PANASONIC, ERJ3EKF1101V
43 1 R43 RES., 11.3k, 1%, 1/10W, 0603 PANASONIC, ERJ3EKF1132V
44 1 R46 RES., 49.9k, 1%, 1/10W, 0603 NIC, NRC06F4992TRF
45 1 R51 RES., 18.2k, 1%, 1/10W, 0603 PANASONIC, ERJ3EKF1822
46 1 R52 RES., 21k, 1%, 1/10W, 0603 ROHM, MCR03EZPFX2102
47 1 R53 RES., 3.01k, 1%, 1/10W, 0603 VISHAY, CRCW06033K01FKEA
48 1 R57 RES., 301k, 1%, 1/10W, 0603 NIC, NRC06F3013TRF
49 1 R61 RES., 124k, 1%, 1/10W, 0603 PANASONIC, ERJ3EKF1243V
50 1 R64 RES., 110k, 1%, 1/10W, 0603 PANASONIC, ERJ3EKF1103V
51 1 R67 RES., 35.7k, 1%, 1/10W, 0603 NIC, NRC06F3572TRF
52 1 U1 IC., BATTERY CHARGE CONTROLLER ANALOG DEVICES, LT8491EUKJ#PBF
Additional Demo Board Circuit Components And Options
53 5 C1, C5, C7, C9, C10 CAP., OPTION, ALUM. ELECT., SMD OPT
54 1 C14 CAP., OPTION, 1206 OPT
55 1 C41 CAP., 1μF, X7R, 16V, 10%, 0603 WURTH ELEKTRONIK, 885012206052
56 1 D8 LED, OPTION, 0603 OPT: LUMEX OPTO/COMPONENTS INC., SML-LX0603SIW-TR
57 1 D9 LED, GREEN, COLORLESS DIFFUSED, 0603 OSRAM, LG L29K-G2J1-24-Z
58 1 F1 FUSE BLADE FAST ACTING, 30A, 58V, 10.9mm × 3.8mm × 8.8mm LITTLEFUSE, 0997030.WXN
59 1 FH1 FUSE HOLDER, 125V, 2-PIN, THT-HOLE LITTELFUSE, 178.6764.0001
60 1 HL1 IND., OPTION OPT
61 1 M5 XSTR., MOSFET, N-CHAN, 25V, PG-TDSON-8 OPT: INFINEON, BSC010NE2LSI
62 1 R24 RES., 0Ω, 1/10W, 0603 OPT: BOURNS, CR0603-J/-000ELF
63 1 R35 RES., OPTION, 0603 OPT
64 1 R45 RES., 1.3k, 1%, 1/10W, 0603 VISHAY, CRCW06031K30FKEA
65 2 R48, R62 RES., OPTION, 0603 OPT
66 1 R50 RES., 549Ω, 1%, 1/10W, 0603 VISHAY, CRCW0603549RFKEA
67 2 R68, R69 RES., 10k, 1%, 1/10W, 0603 VISHAY, CRCW060310K0FKEC
68 1 R75 RES., OPTION, 1206 OPT
69 1 R76 RES., 1Ω, 1%, 1/10W, 0603 OPT: YAGEO, RC0603FR-071RL
70 1 SW1 SWITCH, TACT., NO SPST, 0.05A, 12V, J-BEND, SMD 6.0mm × 3.5mm WURTH ELEKTRONIK, 434123050816
71 1 U4 IC., MEMORY, EEPROM, 2Kb (256×8), TSSOP-8 MICROCHIP, 24LC025-I/ST
Optional Remote Sense for VBAT: Installed
72 1 C25 CAP., 0.010μF, X7R, 16V, 10%, 0603 WURTH ELEKTRONIK, 885012206040
73 3 D1, D2, D10 DIODE, SWITCHING, 75V, 300mA, 350mW, SOT-23 DIODES INC., BAV99-7-F
74 1 D5 DIODE, OPTION, SOD-323 OPT
75 1 J3 CONN., RJ-25, FEMALE, 6-POS, 2.54mm, THT RA TE CONNECTIVITY, 5555165-1
76 1 Q2 XSTR., MOSFET, P-CH, 50V, 0.13A, SOT23-3 FAIRCHILD SEMI, BSS84
77 2 Q4, Q5 XSTR., NPN, 40V, 200mA, SOT23-3 ON SEMICONDUCTOR, MMBT3904LT1G
78 1 R14 RES., 100k, 1%, 1/10W, 0603 YAGEO, RC0603FR-07100KL
PARTS LIST
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DEMO MANUAL DC2703A-A-KIT
Rev. 0
ITEM QTY REFERENCE PART DESCRIPTION MANUFACTURER/PART NUMBER
79 2 R15, R60 RES., 100Ω, 5%, 1W, 2512 PANASONIC, ERJ1TYJ101U
80 1 R19 RES., OPTION, 0603 OPT
81 1 R32 RES., 200k, 1%, 1/10W, 0603 NIC, NRC06F2003TRF
82 1 R33 RES., 27.4k, 1%, 1/10W, 0603 VISHAY, CRCW060327K4FKEA
83 1 R34 RES., 113k, 1%, 1/10W, 0603 PANASONIC, ERJ3EKF1133V
84 1 U2 IC., OP AMP, SO8 ANALOG DEVICES, LT1636CS8#PBF
Optional DC Input Source: Installed
85 1 C40 CAP., 2.2μF, X7R, 100V, 10%, 1210 AVX, 12101C225KAT2A
86 1 D11 DIODE, TVS, UNI-DIRECT, 70V, 400W, SMA DIODES INC., SMAT70A-13-F
87 1 D12 DIODE, ZENER, 12V, 150mW, SOD-523 DIODES INC., DDZ9699T-7
88 1 D13 DIODE, TVS, UNI-DIRECT, 24V, 400W, SMA DIODES INC., SMAJ24A-13-F
89 1 J7 ANDERSON PP15/45 1×2 ASSEMBLED FROM MP1-MP15 ANDERSON POWER, MULTI-PART PP15
90 1 M7 XSTR., MOSFET, N-CH, 100V, 80A, PG-TDSON-8 INFINEON, BSC070N10NS5
91 1 Q6 XSTR., NPN, 40V, 200mA, SOT23-3 ON SEMICONDUCTOR, MMBT3904LT1G
92 1 R70 RES., 100k, 1%, 1/10W, 0603 YAGEO, RC0603FR-07100KL
93 1 R71 RES., 33.2k, 1%, 1/10W, 0603 PANASONIC, ERJ3EKF3322V
94 1 R72 RES., 1k, 1%, 1/10W, 0603 VISHAY, CRCW06031K00FKEA
95 1 U3 IC., IDEAL DIODE CONTROLLER, 6-PIN DFN EP ANALOG DEVICES, LTC4359CDCB#PBF
Optional EXTVCC Disconnect: Not Installed
96 1 Q1 XSTR., MOSFET, P-CH, 50V, 0.13A, SOT23-3 OPT: FAIRCHILD SEMI, BSS84
97 1 Q3 XSTR., NPN, 40V, 200mA, SOT23-3 OPT: ON SEMICONDUCTOR, MMBT3904LT1G
98 1 R3 RES., 100k, 1%, 1/10W, 0603 OPT: YAGEO, RC0603FR-07100KL
99 1 R16 RES., 10Ω, 1%, 1/10W, 0603 OPT: VISHAY, CRCW060310R0FKEA
100 1 R25 RES., 200k, 1%, 1/10W, 0603 OPT: NIC, NRC06F2003TRF
101 1 R28 RES., 26.1k, 1%, 1/10W, 0603 OPT: NIC, NRC06F2612TRF
Hardware, Connectors, Etc.
102 2 J1, J2 ANDERSON PP15/45 1×2 ASSEMBLED FROM MP1-MP15 ANDERSON POWER, MULTI-PART PP15
103 2 J4, J6 CONN., HDR, MALE, 1×4, 2.54mm, STR, VERT, THT, AU HTSW SERIES SAMTEC, HTSW-104-07-G-S
104 1 J5 CONN., HEADER SHROUDED, M, 8-POS, 2.54mm, THT- HOLE STR WURTH ELEKTRONIK, 61200821621
105 2 J8, J12 CONN., HEADER, HDR, 8-POS, 2mm, ST THT-HOLE AMPHENOL, 98414-G06-08ULF
106 1 J9 CONN., HDR, SHROUDED, MALE, 2×6, 2mm, VERT, ST, THT AMPHENOL, 98414-G06-12ULF
107 1 J10 CONN., HDR, SHROUDED, MALE, 2×7, 2mm, VERT, ST, THT MOLEX, 87831-1420
108 1 J11 CONN., HDR, MALE, 1×4, 2.54mm, STR, VERT, THT, AU HTSW SERIES SAMTEC, HTSW-104-07-G-S
109 3 MP1, MP6, MP11 CONN., POWERPOLE, HOUSING, + PIN, RED, 15A, 1-POS ANDERSON POWER PRODUCTS, 1327
110 3 MP2, MP7, MP12 CONN., POWERPOLE, HOUSING, – PIN, BLACk, 15A, 1-POS ANDERSON POWER PRODUCTS, 1327G6
111 6 MP3, MP4, MP8, MP9, MP13, MP14
CONN., POWER, SKT, 25.7mm, RA/THT-HOLE ANDERSON POWER PRODUCTS, 1377G12-BK
112 3 MP5, MP10, MP15 CONN., PCB MTG STAPLES, 1×2, STR, 12mm × 14.5mm ANDERSON POWER PRODUCTS, 114555P2
113 4 MTG1, MTG2, MTG3, MTG4
SCREW, MACHINE, 4-40 × 3/4, PHILIPS PAN HEAD, STL, ZINC CR3 OLANDER CO, 4C25PPIZR
114 4 SO1, SO2, SO3, SO4 STANDOFF, F/F, HEX, 4-40 × 1-INCH KEYSTONE, 2205
115 13 TP1, TP2, TP3, TP4, TP6, TP7, TP8, TP9,
TP10, TP12, TP13, TP14, TP15 TEST POINT, SILVER PLATE, PHOSPHOR BRONZE, 3.81mm × 2.03mm, 2.29mm H, SMT
KEYSTONE, 5019
PARTS LIST
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DEMO MANUAL DC2703A-A-KIT
Rev. 0
SCHEMATIC DIAGRAM
11
22
33
44
55
66
DD
CC
BB
AA
BG2
TG2
CSN
IMON
_IN
SW2
VIN
FBOU
T
CSP
BST2
SYNC
SS
SFI
SII
SIO
SFO
SDA
FBO
W
ADD
R
VDD
VDD
INTV
CC
INTV
CC
#SD
FBIN
CSN
IN
FBIW
ECO
N
INTV
CC
BG1
MO
DE
SW1
SW2
FBIR
RS+
RS+
TG1
SW1
VIN
R
EXTV
CC
SWE
N
SCL
VDD
VBA
T
VIN
R
CSNO
UT
CLKOUT
CKLDET
IOR
IOW
VIN
10k
R56
11.3
k
R43
1.1
k
R42
50V
NP0
220p
FC3
6
3.48
kR4
0
DFLS
1100
D7
2220
-J-X
210
0V
10u
F
C2
100n
FC3
7
1uF
C27
110k
R64
1225
3W3mR13
10uH
12
3
MTG
-NC
L1
25V
150u
F+
C3
21
CMM
R1U
-02
D3
10k
R59
470n
FC2
43.
3
R20
60V 4
5
3
678
12
BSC0
28N0
6N
SM
1
49.9
kR4
6
100
V12
10
2.2u
FC2
3
17V-
54V
PANE
LIN
*2 1
RED
BLK
J1
102k
R31
2512
2W3mR2
4.7n
FC3
5
8.06
kR6
2220
-J-X
210
0V
10u
FC1
2
0R36
10R63
DFLS
1100D6
1nF
C15
53.6
kR6
5LT84
91IN
TVC
C7
MODE 9
IMON
_IN
10
SHDN 11
CSN12
CSP13
LDO3
314
FBIN
15
FBOU
T16
IMON_OUT 17
RT 22
BG225
GATE
VCC
24BG123
BOOST227
TG228
SW229
SW131
TG132
BOOST133EX
TVCC
40
CSNO
UT41
CSPO
UT42
CSNI
N44
CSPI
N45
VIN
46
SYNC 21
VC 18
SS 19
CLKOUT 20
N/C 60
N/C 52
SRVO
_FB
OU
T38
SRVO
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DEMO MANUAL DC2703A-A-KIT
Rev. 0
Figure 5. DC2703A-A-KIT Top Side
BOARD PHOTO: TOP SIDE
13
DEMO MANUAL DC2703A-A-KIT
Rev. 0
Figure 6. DC2703A-A-KIT Bottom Side
Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
BOARD PHOTO: BOTTOM SIDE
14
DEMO MANUAL DC2703A-A-KIT
Rev. 0
ANALOG DEVICES, INC. 2020
07/20www.analog.com
ESD Caution ESD (electrostatic discharge) sensitive device. Charged devices and circuit boards can discharge without detection. Although this product features patented or proprietary protection circuitry, damage may occur on devices subjected to high energy ESD. Therefore, proper ESD precautions should be taken to avoid performance degradation or loss of functionality.
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