LM3431EVAL National Semiconductor, LM3431EVAL Datasheet - Page 3

• Manufacturer Part Number: LM3431EVAL
• Description: BOARD EVAL FOR LM3431 LED DRIVER
• Manufacturer: National Semiconductor
• Series: PowerWise®r

Specifications of LM3431EVAL

• Current - Output / Channel: 140mA
• Outputs And Type: 4, Non-Isolated
• Features: Dimmable
• Voltage - Input: 8 ~ 18V
• Utilized Ic / Part: LM3431
• Kit Contents: Board, Datasheet
• Svhc: No SVHC (15-Dec-2010)
• Kit Features: Designed To Drive 4 Parallel Strings Of 8 Series LEDs At 140mA Per String From An Input 8V To 18V
• Mcu Supported Families: LM3431
• Rohs Compliant: No
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Voltage - Output: -
• Lead Free Status / Rohs Status: Supplier Unconfirmed

R10 - R13
Q2-Q5
D2-D3
D4-D5
D6-D7
D8-D9
Ref #
C10
C11
C12
C13
C14
C15
C16
D10
Op1
R5a
R5b
R14
R15
R16
R17
IC1
Q1
Q6
C1
C2
C3
C4
C5
C6
C7
C8
C9
D1
R1
R2
R3
R4
R6
R7
R8
R9
L1
REFIN bypass
bypass diode
REF bypass
power diode
Power FET
EN uvlo set
EN uvlo set
LED sense
REFIN set
REFIN set
power coil
Function
MODE/F
regulator
Comp2
I sense
Comp
Comp
I limit
VCC
THM
THM
DLY
OP1
CFB
CFB
ch.4
ch.4
ch.4
ch.4
DIM
Cin
Cin
Cin
SS
VA
VA
VA
SC
SC
RT
FF
FF
60V 200mA N-channel MOSFET
Boost controller and LED driver
4A 40V N-channel MOSFET
40V 600mA NPN transistor
600mA dual cathode diode
600mA dual cathode diode
250mA dual anode diode
250mA dual anode diode
4.7nF 50V COG ceramic
10nF 10V COG ceramic
10nF 10V COG ceramic
4.7µF 10V X7R ceramic
4.7µF 50V X7R ceramic
4.7µF 50V X7R ceramic
47nF 50V X7R ceramic
47nF 50V X7R ceramic
2A 40V Schottky diode
10µF 50V electrolytic
1µF 50V B ceramic
51mohm 0.5W 1%
7µH 3.1A inductor
TABLE 1. Standard Bill of Materials
rail to rail op amp
Description
not installed
not installed
not installed
not installed
not installed
not installed
not installed
5.76k 1%
15.8k 1%
88.7k 1%
13.0k 1%
909Ω 1%
105k 1%
2.2Ω 1%
34.8k
95.3k
20k
10k
10k
0Ω
1k
3
GRM21BR71H473KA01L3K
GRM21BR71H473KA01L3K
GRM32ER71H475KA88L
GRM32ER71H475KA88L
GRM2195C1H103JA01D
GRM2165C1H472JA01D
GRM2195C1H103JA01D
GRM32RB11H105KA01
C2012X7R1A475M
WSL2010R0510F
MSS1038-702NL
UUD1H100MCL
Part Number
CMPD3003C
CMPD3003C
LM3431MHX
CMPD1001A
CMPD1001A
CXT2222A
Si4446DY
2N7002K
LMV710
SS24
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Semiconductor
Semiconductor
Semiconductor
Semiconductor
Semiconductor
Semiconductor
Semiconductor
Manufacturer
Nichicon
National
Coilcraft
National
Murata
Murata
Murata
Murata
Murata
Murata
Murata
Murata
Central
Central
Central
Central
Central
Vishay
Vishay
Vishay
Vishay
www.national.com
TDK
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