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LT1932
TYPICAL APPLICATIO S
Single Cell Driver for One White LED
Efficiency
V IN
1V TO 1.5V
6
L1
4.7 μ H
1
D1
80
75
V IN = 1.5V
V IN
SW
70
V IN = 1.1V
C1
4.7 μ F
5
LT1932
SHDN LED
R SET GND
3
15mA
C2
4.7 μ F
65
60
2.5V PWM
DIMMING
24.9k
4
2
55
CONTROL
R SET
1.50k
50
0
2.5
5
7.5
10
12.5
15
C1, C2: TAIYO YUDEN JMK212BJ475
D1: ZETEX ZHCS400
L1: MURATA LQH3C4R7M24
(408) 573-4150
(631) 543-7100
(814) 237-1431
1932 TA03a
LED CURRENT (mA)
1932 TA03b
Single Cell Driver for Two White LEDs
Efficiency
V IN
1V TO 1.5V
6
L1
4.7 μ H
1
D1
80
75
V IN = 1.5V
V IN
SW
70
V IN = 1.1V
LT1932
C1
4.7 μ F
5
SHDN
R SET
LED
GND
3
15mA
C2
2.2 μ F
65
60
2.5V PWM
DIMMING
CONTROL
24.9k
4
R SET
1.50k
2
55
50
C1: TAIYO YUDEN JMK212BJ475
C2: TAIYO YUDEN LMK212BJ225
(408) 573-4150
(408) 573-4150
1932 TA04a
0
2.5
5 7.5 10
LED CURRENT (mA)
12.5
15
D1: ZETEX ZHCS400
L1: MURATA LQH3C4R7M24
(631) 543-7100
(814) 237-1431
1932 TA04b
1932f
10
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LT1932ES6#TRMPBF (CUT REEL)
制造商:Linear Technology 功能描述:
LT1932ES6#TRPBF
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