LM3409 Datasheet, PDF (25/30 Pages) National Semiconductor (TI) – PFET Buck Controller for High Power LED Drives

DESIGN #4: SINGLE POTENTIOMETER ANALOG DIMMING APPLICATION FOR 6 LEDS
Design #4 Bill of Materials
Qty
Part ID
1
LM3409
2
C_IN1, C_IN2
1
C_F
1
C_F2
1
C_OFF
1
C_O
1
Q1
1
D1
1
L1
1
R_OFF
1
R_UV1
1
R_UV2
1
R_SNS
1
R_ADJ
Part Value
Buck controller
2.2µF X7R 10% 50V
Manufacturer
NSC
MURATA
1.0µF X7R 10% 16V
0.1µF X7R 10% 16V
470pF X7R 10% 50V
1.0µF X7R 10% 50V
TDK
TDK
TDK
MURATA
PMOS 60V 3A
Schottky 60V 2A
68 µH 20% 2A
25.5kΩ 1%
6.98kΩ 1%
49.9kΩ 1%
0.3Ω 1% 1W
250kΩ potentiometer
ZETEX
ST-MICRO
TDK
VISHAY
VISHAY
VISHAY
VISHAY
BOURNS
30085622
Part Number
LM3409MY
GRM43ER71H225MA0
1L
C1608X7R1C105K
C1608X7R1C104K
C1608X7R1H471K
GRM32RR71H105KA0
1L
ZXMP6A17GTA
STPS2L60A
SLF12565T-680M2R0
CRCW060325K5FKEA
CRCW06036K98FKEA
CRCW060349K9FKEA
WSL2512R3000FEA
3352P-1-254
25
www.national.com