KIT34844AEPEVBE Evaluation Board · KIT34844AEPEVBE Evaluation Board, Rev. 1.0 4 Freescale...
17
© Freescale Semiconductor, Inc., 2010. All rights reserved. Freescale Semiconductor User’s Guide Document Number: KT34844AUG Rev. 1.0, 7/2010 Table of Contents Kit Contents / Packing List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Important Notice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 EVB Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Required Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 KIT34844A Setup Configuration Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 KIT34844A Schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Using Demo Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 LED Load Board Configuration (10 Channels x 16 LEDs) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Board Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 KIT34844A Bill of Material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 KIT34844AEPEVBE Evaluation Board Figure 1. KIT34844A Image
Transcript of KIT34844AEPEVBE Evaluation Board · KIT34844AEPEVBE Evaluation Board, Rev. 1.0 4 Freescale...
© Freescale Semiconductor, Inc., 2010. All rights reserved.
Freescale SemiconductorUser’s Guide
Document Number: KT34844AUGRev. 1.0, 7/2010
Table of ContentsKit Contents / Packing List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2Important Notice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3EVB Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4Required Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5KIT34844A Setup Configuration Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6KIT34844A Schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7Using Demo Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8LED Load Board Configuration (10 Channels x 16 LEDs) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10Board Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11KIT34844A Bill of Material . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
KIT34844AEPEVBE Evaluation Board
Figure 1. KIT34844A Image
KIT34844AEPEVBE Evaluation Board, Rev. 1.02 Freescale Semiconductor
Kit Contents / Packing List
1 Kit Contents / Packing List
• Evaluation Board - KIT34844AEPEVBE• Cable for LED board connection
KIT34844AEPEVBE Evaluation Board, Rev. 1.0Freescale Semiconductor 3
Important Notice
2 Important Notice
Freescale provides the enclosed product(s) under the following conditions:
This evaluation kit is intended for use of ENGINEERING DEVELOPMENT OR EVALUATION PURPOSES ONLY. It is provided as a sample IC pre-soldered to a printed circuit board to make it easier to access inputs, outputs, and supply terminals. This EVB may be used with any development system or other source of I/O signals by simply connecting it to the host MCU or computer board via off-the-shelf cables. This EVB is not a Reference Design and is not intended to represent a final design recommendation for any particular application. Final device in an application will be heavily dependent on proper printed circuit board layout and heat sinking design as well as attention to supply filtering, transient suppression, and I/O signal quality.
The goods provided may not be complete in terms of required design, marketing, and or manufacturing related protective considerations, including product safety measures typically found in the end product incorporating the goods. Due to the open construction of the product, it is the user's responsibility to take any and all appropriate precautions with regard to electrostatic discharge. In order to minimize risks associated with the customers applications, adequate design and operating safeguards must be provided by the customer to minimize inherent or procedural hazards. For any safety concerns, contact Freescale sales and technical support services.
Should this evaluation kit not meet the specifications indicated in the kit, it may be returned within 30 days from the date of delivery and will be replaced by a new kit.
Freescale reserves the right to make changes without further notice to any products herein. Freescale makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does Freescale assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or incidental damages. “Typical” parameters can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typical”, must be validated for each customer application by customer’s technical experts.
Freescale does not convey any license under its patent rights nor the rights of others. Freescale products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the Freescale product could create a situation where personal injury or death may occur.
Should Buyer purchase or use Freescale products for any such unintended or unauthorized application, Buyer shall indemnify and hold Freescale and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that Freescale was negligent regarding the design or manufacture of the part.Freescale™ and the Freescale logo are trademarks of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. © Freescale Semiconductor, Inc., 2010. All rights reserved.
KIT34844AEPEVBE Evaluation Board, Rev. 1.04 Freescale Semiconductor
EVB Introduction
3 EVB Introduction
This EVB is intended to show the functionality and features of the MC34844A device under specific operation parameters.
The MC34844A device is a high efficiency LED driver for use in backlighting LCD displays applications from 10” to 20”+. This demo board operates from a supply voltage of 24V and drives up to 160 LEDs in 10 parallel strings.
The dimming control can be done through an external PWM signal or using the I2C/SMBUS interface.
3.1 EVB Operation Parameters• Input Voltage (Vin) = 24V +/- 10%• LED Load = 16 Leds x 10 Channels• Expected Output Voltage (Vout) = around 47V• Duty Cycle = All range.• PWM Minimum Pulse Width = 400ns• LED Current = 60mA • HW OVP = 53V• Boost Frequency = 330KHz (Typ)• PWM Freq= 200 Hz to 25KHz (5V), or 100% Duty Cycle• Master Mode
3.2 EVB Features• Compact design 2.5in x 2.7in• Two layer board, 1oz copper. • Placement on Top only.• Low noise design for power ground (PGND) and digital ground (DGND)• Top layer placement and routing for better thermal dissipation on bottom• Header for LED board connection• Test points on all main signals for easy evaluation• Push in terminal block for input voltage supply• Headers and jumpers for signals configurations
3.3 MC34844A Features• Input voltage of 7V to 28V• Output Voltage up to 60V, with auto Vout selection• 2.5A integrated boost• Up to 80mA LED current per channel• 330KHz Boost frequency (Default)• 90% efficiency (DC:DC)• 10-channel current mirror with ±2% current matching• I2C/SM-bus interface• 8-bit programmable current DAC• PWM frequency programmable or synchronizes from 110 Hz to 27 KHz• User programmable OVP• LED failure detection and OTP/OCP/UVLO lockout• 32-Ld 5x5x0.8mm TQFN Pb-Free packaging
KIT34844AEPEVBE Evaluation Board, Rev. 1.0Freescale Semiconductor 5
Required Equipment
4 Required Equipment
4.1 Hardware Requirements• Power Supply (up to 30V @ 3A)• LED Board (KITLEDBKLT16EVBE preferred)• 12 conductor cable. Used for LED board connection (CH0-CH9, GND, VOUT).• PWM signal generator or I2C/SMBUS interface
KIT34844AEPEVBE Evaluation Board, Rev. 1.06 Freescale Semiconductor
KIT34844A Setup Configuration Diagram
5 KIT34844A Setup Configuration Diagram
Figure 1. KIT34844A Setup Configuration Diagram
POWER�SUPPLY
5V�PWM
KIT34844AEPEVBE
LED�BOARDKITLEDBKLT16EVBE
KIT34844AEPEVBE Evaluation Board, Rev. 1.0Freescale Semiconductor 7
KIT34844A Schematic
6 KIT34844A Schematic
Figure 2. KIT34844A Schematic
5 5
4 4
3 3
2 2
1 1
DD
CC
BB
AA
HW O
VP
Inpu
t Vo
ltag
e
LED
Chan
nels
Con
nect
ion
MAST
ER /
SLA
VEA0
/ S
EN
MSB,
A0
/SEN
, EN
, SD
A/SC
K Se
lect
ors
Inpu
t Di
coup
ling
Cap
s
EN
Cout
= 3
3.3u
F (E
FFEC
TIVE
)
TEST
POI
NTS
SMT
INPU
T Si
gnal
s
Fidd
ucia
ls
KIT3
4844
AEPE
VBE
VIN:
24V
+/-
10%
, LO
AD =
10P
16S,
OVP
= 53
V,
ILED
= 6
0mA,
FSW
= 3
00KH
Z
Pull
dow
n re
sist
or
VIN
A0/S
ENIP
9
SCK
IP8
MSB
IP6
IP0
IP1
IP2
IP3
IP4
IP5
IP6
IP7
IP8
IP9
IP5
MSB
IP4
VDC1
VDC3
PIN
IP3
COMP
IP2
SLOP
EIS
ET
VDC2
_T
VIN_PIN
VDC1_T
SCK
VDC2_T
IP1
VDC3
VOUT
IP0
FAIL
COMP
VOUT
VDC2
GND
A0/S
ENVD
C1
A0/S
EN
VDC1
_TVD
C1
ENVI
N_PI
N
SLOP
E
CKVDC2
COMP
EN
VDC1
IP0
GND
IP2
IP3
IP1
EN
SDA
CKPW
M
PWM
IP4
IP6
IP7
IP5
SW GND
IP8
IP9
SDA
VOUT
IP7 FAIL
GND
VOUT
A0/S
ENENCK FA
IL
PWM
SDA
SCK
GND
GND
GND
VIN_
PIN
GND
GND
GND
VDC1
PIN
VDC1
NIN
NIN
PWM
ENEN
A0/S
ENPW
MVIN
GND
GND
VIN
Draw
ing Ti
tle:
Size
Docu
ment
Numb
erRe
v
Date:
Shee
tof
Page
Title
:
ICAP
Clas
sifica
tion:
FCP:
FIUO:
PUBI
:
SCH-
2649
6 PDF
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-2649
6A
KIT34844AEPEVBE
B
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y, Ma
y 14,
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Schematic
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Size
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Numb
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Date:
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Title
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sifica
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FCP:
FIUO:
PUBI
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SCH-
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KIT34844AEPEVBE
B
Frida
y, Ma
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2010
Schematic
11
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Title
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Size
Docu
ment
Numb
erRe
v
Date:
Shee
tof
Page
Title
:
ICAP
Clas
sifica
tion:
FCP:
FIUO:
PUBI
:
SCH-
2649
6 PDF
: SPF
-2649
6A
KIT34844AEPEVBE
B
Frida
y, Ma
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2010
Schematic
11
___
___
X
R51.2
KR5
1.2K
C29
2.2uF
C29
2.2uF
TP11
TP11 1
TP9
TP9 1
R9 100K
R9 100K
FID3
FID 100 M
il Mas
k
DNP
FID3
FID 100 M
il Mas
k
DNP
TP8
TP8 1
R2 6.80K
R2 6.80K
+C9 10
UF+
C9 10UF
C5 2.2uF
C5 2.2uF
C17
100P
FDN
P
C17
100P
FDN
P
C16
100P
FDN
P
C16
100P
FDN
P
TP2
TP2 1
C18
100P
FDN
P
C18
100P
FDN
P
J6
HDR_
1X2
J6
HDR_
1X212
C11
2.2UF
C11
2.2UF
TP3
TP3 1
TP5
TP5 1
+C7 10
UF+
C7 10UF
J13
HDR_
1X2
J13
HDR_
1X212
U1 MC34
844A
EP
U1 MC34
844A
EP
VIN
1
VDC1
28
COMP
29
EN7
CK24
M/~S
30
PWM
25
SCK
27
SDA
26
A0/S
EN6
ISET
19
PIN
20
NIN
21
SWA
4
SWB
3
VOUT
32
PGND
A5
PGND
B2
VDC2
31
FAIL
18
I08
I19
I210
I311
I412
I513
I614
I715
I816
I917
VDC3
23
SLOP
E22
GND
33
C15
2.2UF
C15
2.2UF
11
22
J1CO
N_2_
TB
11
22
J1CO
N_2_
TB
11 21
12 22
C6 2.2uF
C6 2.2uF
TP7
TP7 1
C13
100P
F
C13
100P
F
C14
4700
PF
C14
4700
PF
J9
HDR_
1X2
J9
HDR_
1X2
12
J4 CON
PLUG
12
J4 CON
PLUG
12
1 2 3 4 5 6 7 8 9 10 1211
FID1
FID 100 M
il Mas
k
DNP
FID1
FID 100 M
il Mas
k
DNP
J5
HDR_
1X2
J5
HDR_
1X212
L1
47uH
L1
47uH
12
R4 100K
R4 100K
FID2
FID 100 M
il Mas
k
DNP
FID2
FID 100 M
il Mas
k
DNP
+C1
010
UF+
C10
10UF
C8 100P
FC8 10
0PF
J11
HDR
TH 1X
3
J11
HDR
TH 1X
31 2 3
TP12
TP12 1
J14
HDR_
1X2
J14
HDR_
1X212
TP6
TP6 1
C12
2.2UF
C12
2.2UF
C1 10uF
C1 10uF
C2 10uF
C2 10uF
C19
220P
FC1
922
0PF
TP13
TP13 1
C27
220P
FC2
722
0PF
C24
220P
FC2
422
0PF
C21
220P
FC2
122
0PF
J12
HDR_
1X2
J12
HDR_
1X2
1 2
C26
220P
FC2
622
0PF
C23
220P
FC2
322
0PF
C20
220P
FC2
022
0PF
C28
220P
FC2
822
0PF
C25
220P
FC2
522
0PF
C22
220P
FC2
222
0PF
TP4
TP4 1
TP1
TP1 1
TP10
TP10 1
R8
27K
R8
27K
D1
V12P
10-E
3/86A
D1
V12P
10-E
3/86A
1
3
2
J3 HDR_
1X10
J3 HDR_
1X101 2 3 4 5 6 7 8 9 10
J10
HDR
TH 1X
3
J10
HDR
TH 1X
31 2 3
R6 150.0
KR6 15
0.0K
J8 HDR
TH 1X
3
J8 HDR
TH 1X
31 2 3
C3 10uF
C3 10uF
R3 4.64K
R3 4.64K
R727K
R727K
R11.2
KR1
1.2K
C4 0.1UF
C4 0.1UF
KIT34844AEPEVBE Evaluation Board, Rev. 1.08 Freescale Semiconductor
Using Demo Board
7 Using Demo Board
7.1 Demo Board Jumper Connections
Table 1: Jumper ConnectionsNote: Jumpers J11 & J9 can not be used at the same time.
For more details about operation modes and PIN and NIN functions please refer to the data sheet.
JUMPER CONNECTION FUNCTION DESCRIPTION
J12 Device supply This jumper connects the input supply of the device (VIN pin) to the main supply of the board
J9 Hardware OVP Enable This jumper connects the A0/SEN pin to a resistor divider to enable the hardware OVP setting.This jumper and the corresponding OVP resistors should be used for manual mode operation.Note: J11 must be disconnected.Note2: If this jumper is not connected the default internal OVP will be set (65V)
J11 I2C programming enable J11(1-2) connects A0/SEN pin to VDC1 to enable I2C programming. J11(2-3) connects A0/SEN pin to GND to disable I2C programming.
J5, J6 SDA and SCK pins to GND These two jumpers connect SDA and SCK to GND for Manual Mode.
J8 Device Enable J8(1-2) connects EN pin to VIN pin for enabling the device.J8(2-3) connects EN pin to GND for disabling the device.
J13 PIN function disable This jumper disables the positive input analog current control by connecting the PIN pin to VDC1
J14 NIN function disable This jumper disables the negative input analog current control by connecting the NIN pin to VDC1
J10 Master/Slave mode J10(1-2) configure the part in Master Mode J10(2-3) configure the part in Slave ModeNote: For more information about this two modes please refer to the data sheet.
J3 Control Header Please refer to “Control Header (J3)” section
KIT34844AEPEVBE Evaluation Board, Rev. 1.0Freescale Semiconductor 9
Using Demo Board
7.2 Control Header (J3)
NOTE: Jumpers related to these signals must be removed prior to applying any external signal.
7.3 Start up Sequence in MANUAL MODE (Default)1. Make sure the following jumpers are connected: J5, J6, J8(1-2), J9, J10(1-2), J12, J13, J14.2. Set the power supply to 24V with a minimum current limit of 3A3. Turn off power supply and connect it to the Demo board through J14. Set a 5V PWM signal on the function generator (200Hz - 25KHz).
For 3.3V signal R8 and R2 should be changed to 18Kohm and 8.2Kohm correspondingly.5. Turn off the function generator and connect this PWM signal to J3 (pin #4). Make sure the GND of
this source is also connected to the board. For 100% Duty cycle, connect a 5V supply instead.6. Connect LED board “KITLEDBKLT16EVBE”7. Turn on power supply8. Turn on PWM generator or apply 5V to the PWM pin. All LEDs should light up.
This board is set up to work in Manual Mode by default.
For I2C communication J5 and J6 must be disconnected. Please refer to the data sheet to make the respective changes and jumper configuration based on application needs.
PIN NUMBER SIGNAL
1 GND
2 SCK (I2C communication)
3 SDA (I2C Communication)
4 PWM (Dimming control)
5 GND
6 CK (Clock frequency for synchronization in Slave mode)
7 EN (Device Enable)
8 A0/SEN (I2C Enable or HW OVP control)
9 FAIL (FAIL monitoring pin)
10 GND
KIT34844AEPEVBE Evaluation Board, Rev. 1.010 Freescale Semiconductor
LED Load Board Configuration (10 Channels x 16 LEDs)
8 LED Load Board Configuration (10 Channels x 16 LEDs)
Figure 3. LED Load Board
Jumper Function:• Top horizontal jumpers: Channel strings enable. Please verify that jumpers J8 to J16 are the only ones connected.• Bottom horizontal jumpers: Connect LED channel to the voltage at the boost. DO NOT CONNECT THESE JUMPERS, LED channels can be damaged.• Vertical jumpers: Short circuit LEDs.
JUMPERS
KIT34844AEPEVBE Evaluation Board, Rev. 1.0Freescale Semiconductor 11
Board Layout
9 Board Layout
9.1 Top Layer (x1)
Figure 4. Top Layer (x1)
9.2 Bottom Layer (x2)
Figure 5. Bottom Layer (x1)
KIT34844AEPEVBE Evaluation Board, Rev. 1.012 Freescale Semiconductor
Board Layout
9.3 Silk Screen Top (x1)
Figure 6. Silk Screen Top (x1)
9.4 Silk Screen Bottom (x1)
Figure 7. Silk Screen Bottom(x1)
KIT34844AEPEVBE Evaluation Board, Rev. 1.0Freescale Semiconductor 13
Board Layout
9.5 Assembly Top (x1)
Figure 8. Assembly Top (x1)
9.6 Drill Chart (x0.7)
Figure 9. Drill Chart (x0.7)
KIT34844AEPEVBE Evaluation Board, Rev. 1.014 Freescale Semiconductor
KIT34844A Bill of Material
10 KIT34844A Bill of Material
Item Qty Part Reference Value Description MFG Name Manufacturer PN
1 3 C1-C3 10UF CAP CER 10UF 35V 10% X7R 1210 MURATA GRM32ER7YA106KA12L
2 1 C4 0.1UF CAP CER 0.1UF 50V 5% X7R 0805 KEMET C0805C104J5RACTU
3 3 C5,C6,C29 2.2uF CAP CER 2.2UF 100V 10% X7R 1210 Murata GRM32ER72A225KA35L
4 3 C7,C9,C10 10UF CAP ALEL 10UF 80V 20% SMT PANASONIC EEEFK1K100P
5 2 C8,C13 100PF CAP CER 100PF 50V 5% C0G 0603 AVX 06035A101JAT2A
6 3 C11,C12,C15 2.2UF CAP CER 2.2UF 25V 10% X7R 0805 AVX 08053C225KAT2A
7 1 C14 4700 PF CAP CER 4700PF 50V 5% X7R 0603 AVX 06035C472JAT2A
8 3 C16-C18 100PF CAP CER 100PF 50V 5% C0G 0603 AVX 06035A101JAT2A
9 10 C19-C28 220PF CAP CER 220PF 50V 10% X7R 0603 KEMET C0603C221K5RAC
10 1 D1 SS5P10-M3/86A DIODE SCH 5A 100V SMPC VISHAY SS5P10-M3/86A
11 3 FID1,FID2,FID3 FID FIDUCIAL 060 MIL PAD GENERIC FID-040
12 1 J1 CON_2_TB CON 1X2 TB TH 3.5MM SP 508H SN Weidmuller 1885180000
13 1 J3 HDR_1X10 HDR 1X10 TH 100MIL SP 330H AU 120L
SULLINS PBC10SAAN
14 1 J4 CON PLUG 12 CON 1X12 PLUG SHRD TH 2.5MM JST MFG. CO B12B-XASK-1N-A
15 6 J5,J6,J9,J12-J14 HDR_1X2 HDR 1X2 TH 100MIL SP 375H AU TYCO 826629-2
16 3 J8,J10,J11 HDR TH 1X3 HDR 1X3 TH 100MIL SP 339H AU SAMTEC TSW-103-07-G-S
17 1 L1 47uH IND FER 47UH@1KHZ 2.7A 20% SMT TDK SLF12575T-470M2R7-PF
18 2 R1,R5 1.2K RES MF 1.2K 1/10W 1% 0603 KOA SPEER RK73H1JTTD1201F
19 1 R2 6.80K RES MF 6.80K 1/10W 1% 0603 KOA SPEER RK73H1JTTD6801F
20 1 R3 4.64K RES MF 4.64K 1/10W 1% 0603 KOA SPEER RK73H1JTTD4641F
21 1 R4 100K RES MF 100K 1/10W 5% 0603 BOURNS CR0603-JW-104ELF
22 1 R6 150.0K RES MF 150.0K 1/10W 1% 0603 KOA SPEER RK73H1JTTD1503F
23 2 R7,R8 27K RES MF 27.0K 1/10W 1% 0603 KOA SPEER RK73H1JTTD2702F
24 1 R9 100K RES MF 100K 1/10W 1% 0603 KOA SPEER RK73H1JTTD1003F
25 13 TP1-TP13 TEST POINT TEST POINT PIN 0.138X.059 SMT NICOMATIC C12000B
26 1 U1 MC34844AEP IC DRV LED 10 CHANNEL 7-28V QFN-32
FREESCALE MC34844AEP
Notes: 1. Freescale does not assume liability, endorse, or warrant components from external manufacturers that are referenced in
circuit drawings or tables. While Freescale offers component recommendations in this configuration, it is the customer’s responsibility to validate their application.
2. The manufacturer name and part number are suggested, however, the kit subcontractor may have substitued an equivalent device, approved by Freescale engineering.
KIT34844AEPEVBE Evaluation Board, Rev. 1.0Freescale Semiconductor 15
References
11 References
Following are URLs where you can obtain information on other Freescale products and application solutions:
Description URL
Data Sheet www.freescale.com/files/analog/doc/data_sheet/MC34844.pdf
Freescale’s Web Site www.freescale.com
Freescale’s Analog Web Site www.freescale.com/analog
Freescale’s Power Management Web Site www.freescale.com/powermanagement
Freescale’s LED Drivers www.freescale.com/webapp/sps/site/taxonomy.jsp?code=LEDBLDRIVER
Freescale Microcontroller http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code=S08SH&fsrch=1
KIT34844AEPEVBE Evaluation Board, Rev. 1.016 Freescale Semiconductor
Revision History
12 Revision History
REVISION DATE DESCRIPTION OF CHANGES
1.0 7/2010 • Initial Release
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KT34844AUGRev. 1.07/2010
Information in this document is provided solely to enable system and software implementers to use Freescale Semiconductor products. There are no express or implied copyright licenses granted hereunder to design or fabricate any integrated circuits or integrated circuits based on the information in this document.
Freescale Semiconductor reserves the right to make changes without further notice to any products herein. Freescale Semiconductor makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does Freescale Semiconductor assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or incidental damages. “Typical” parameters that may be provided in Freescale Semiconductor data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals”, must be validated for each customer application by customer’s technical experts. Freescale Semiconductor does not convey any license under its patent rights nor the rights of others. Freescale Semiconductor products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the Freescale Semiconductor product could create a situation where personal injury or death may occur. Should Buyer purchase or use Freescale Semiconductor products for any such unintended or unauthorized application, Buyer shall indemnify and hold Freescale Semiconductor and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that Freescale Semiconductor was negligent regarding the design or manufacture of the part.
