Datasheet

IADJ
EN
CSN
LM3409
UVLO
VCC
COFF
GND
CSP
C
F
R
OFF
PGATE
C
OFF
R
UV2
R
UV1
DAP
VIN
R
SNS
1
2
3
4
5 6
7
8
9
10
D1
L1
Q1
R
ADJ
V
O
= 24V
V
IN
= 36V
C
IN1
C
IN2
I
LED
= 700 mA
maximum
C
O
C
F2
LM3409, LM3409HV, LM3409-Q1
www.ti.com SNVS602J –MARCH 2009–REVISED MAY 2013
DESIGN #4: SINGLE POTENTIOMETER ANALOG DIMMING APPLICATION FOR 6 LEDS
Design #4 Bill of Materials
Qty Part ID Part Value Manufacturer Part Number
1 LM3409/LM3409Q Buck controller TI LM3409MY/LM3409QMY
2 C
IN1
, C
IN2
2.2µF X7R 10% 50V MURATA GRM43ER71H225MA01L
1 C
F
1.0µF X7R 10% 16V TDK C1608X7R1C105K
1 C
F2
0.1µF X7R 10% 16V TDK C1608X7R1C104K
1 C
OFF
470pF X7R 10% 50V TDK C1608X7R1H471K
1 C
O
1.0µF X7R 10% 50V MURATA GRM32RR71H105KA01L
1 Q1 PMOS 60V 3A ZETEX ZXMP6A17GTA
1 D1 Schottky 60V 2A ST-MICRO STPS2L60A
1 L1 68 µH 20% 2A TDK SLF12565T-680M2R0
1 R
OFF
25.5kΩ 1% VISHAY CRCW060325K5FKEA
1 R
UV1
6.98kΩ 1% VISHAY CRCW06036K98FKEA
1 R
UV2
49.9kΩ 1% VISHAY CRCW060349K9FKEA
1 R
SNS
0.3Ω 1% 1W VISHAY WSL2512R3000FEA
1 R
ADJ
250kΩ potentiometer BOURNS 3352P-1-254
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