LM3409 Datasheet, PDF (24/30 Pages) National Semiconductor (TI) – PFET Buck Controller for High Power LED Drives

Applications Information
DESIGN #3: EXTERNAL PARALLEL FET PWM DIMMING APPLICATION FOR 10 LEDS
Design #3 Bill of Materials
Qty
Part ID
1
LM3409HV
2
C_IN1, C_IN2
1
C_F
1
C_OFF
1
C1
1
Q1
1
Q2
1
Q3
1
D1
1
L1
2
R1, R2
1
R3
1
R_EXT
1
R_OFF
1
R_UV1
1
R_UV2
1
R_SNS
www.national.com
Part Value
Buck controller
2.2µF X7R 10% 100V
Manufacturer
NSC
MURATA
1.0µF X7R 10% 16V
470pF X7R 10% 50V
2200pF X7R 10% 50V
TDK
TDK
MURATA
PMOS 100V 3.8A
CMOS 30V 2A
NMOS 100V 7.5A
Schottky 100V 3A
15 µH 20% 4.2A
1Ω 1%
10kΩ 1%
100Ω 1%
24.9kΩ 1%
6.98kΩ 1%
49.9kΩ 1%
0.1Ω 1% 1W
ZETEX
FAIRCHILD
FAIRCHILD
VISHAY
TDK
VISHAY
VISHAY
VISHAY
VISHAY
VISHAY
VISHAY
VISHAY
30085623
Part Number
LM3409HVMY
GRM43ER72A225KA01
L
C1608X7R1C105K
C1608X7R1H471K
GRM188R71H222KA01
D
ZXMP10A18KTC
FDC6333C
FDS3672
SS3H10-E3/57T
SLF12565T-150M4R2
CRCW06031R00FNEA
CRCW060310K0FKEA
CRCW0603100RFKEA
CRCW060324K9FKEA
CRCW06036K98FKEA
CRCW060349K9FKEA
WSL2512R1000FEA
24