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LT1932 Datasheet(PDF) 13 Page - Linear Technology

Part # LT1932
Description  Constant-Current DC/DC LED Driver in ThinSOT
PDF  16 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LT1932 Datasheet(HTML) 13 Page - Linear Technology

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LT1932
TYPICAL APPLICATIO S
Li-Ion Driver for Two White LEDs
Efficiency
Li-Ion Driver for Three White LEDs
Efficiency
VIN
SW
D1
15mA
1932 TA08a
L1
6.8
µH
VIN
2.7V TO 4.2V
LT1932
SHDN
C1: TAIYO YUDEN JMK212BJ475
(408) 573-4150
C2: TAIYO YUDEN LMK212BJ225
(408) 573-4150
D1: ZETEX ZHCS400
(631) 543-7100
L1: PANASONIC ELJEA6R8
(714) 373-7334
61
4
RSET
1.50k
3.3V PWM
DIMMING
CONTROL
C1
4.7
µF
C2
2.2
µF
31.6k
2
3
5
LED
RSET
GND
VIN
SW
D1
15mA
1932 TA09a
L1
6.8
µH
VIN
2.7V TO 4.2V
LT1932
SHDN
C1: TAIYO YUDEN JMK212BJ475
(408) 573-4150
C2: TAIYO YUDEN EMK316BJ225
(408) 573-4150
D1: ZETEX ZHCS400
(631) 543-7100
L1: PANASONIC ELJEA6R8
(714) 373-7334
61
4
RSET
1.50k
3.3V PWM
DIMMING
CONTROL
C1
4.7
µF
C2
2.2
µF
31.6k
2
3
5
LED
RSET
GND
LED CURRENT (mA)
0
55
60
65
70
75
80
85
510
15
20
1932 TA08b
VIN = 4.2V
VIN = 2.7V
LED CURRENT (mA)
0
55
60
65
70
75
80
85
510
15
20
1932 TA09b
VIN = 4.2V
VIN = 2.7V



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