Texas Instruments LM3404 Evaluation Boards LM3404FSTDIMEV/NOPB LM3404FSTDIMEV/NOPB Benutzerhandbuch
Produktcode
LM3404FSTDIMEV/NOPB
2
1
3
4
C1
V
IN
V
OUT
7
8
6
5
SW
BOOT
GND
DIM
VIN
VCC
RON
CS
C3
R1A
Q1
Q4
L1
R3
LEDs on separate PCB
Optional
R5
Q3
2
CONN-1
C4
V
DIM
C6
JMP-1
U1
External Voltage
Source Optional
4V to 6V
Single package (SC70-6)
Complementary N+P Channel
D1
D2
C2
C5
LM3404
R2
Q3
1
R1B
R4
R6
V
DIM
1 N4148
Dual
LM3404 Improved ILED Average and Fast Dimming Demonstration Board
18
LM3404 Improved ILED Average and Fast Dimming Demonstration Board
Figure 17. V
IN
= 9V to 18V, I
LED
= 700 mA, 3 x 3.4V White LED Strings (f
SW
≊
≊
500 kHz)
23
SNVA342E – July 2008 – Revised April 2013
AN-1839 LM3402/LM3404 Fast Dimming and True Constant LED Current
Evaluation Board
Copyright © 2008–2013, Texas Instruments Incorporated