LT1932
TYPICAL APPLICATIO S
2-Cell Driver for Two White LEDs
Efficiency
V IN
1.8V TO 3V
L1
4.7 μ H
D1
85
80
6
V IN
1
SW
75
V IN = 3V
V IN = 1.8V
C1
4.7 μ F
5
R SET GND
LT1932
SHDN LED
3
15mA
C2
2.2 μ F
70
65
2.5V DC
DIMMING
60.4k
4
2
60
CONTROL
R SET
1.50k
55
C1: TAIYO YUDEN JMK212BJ475
C2: TAIYO YUDEN LMK212BJ225
D1: ZETEX ZHCS400
(408) 573-4150
(408) 573-4150
(631) 543-7100
1932 TA15a
0
5
10
LED CURRENT (mA)
15
20
1932 TA15b
L1: MURATA LQH3C4R7M24
(814) 237-1431
2-Cell Driver for Three White LEDs
Efficiency
V IN
1.8V TO 3V
6
V IN
L1
4.7 μ H
LT1932
1
SW
D1
85
80
75
V IN = 3V
V IN = 1.8V
C1
4.7 μ F
5
SHDN
R SET
LED
GND
3
15mA
C2
2.2 μ F
70
65
2.5V DC
DIMMING
CONTROL
60.4k
4
R SET
1.50k
2
60
55
C1: TAIYO YUDEN JMK212BJ475
C2: TAIYO YUDEN EMK316BJ225
(408) 573-4150
(408) 573-4150
1932 TA06a
0
5
10 15
LED CURRENT (mA)
20
D1: ZETEX ZHCS400
L1: MURATA LQH3C4R7M24
(631) 543-7100
(814) 237-1431
1932 TA06b
1932f
11
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相关代理商/技术参数
LT1932ES6#TRMPBF (CUT REEL) 制造商:Linear Technology 功能描述:
LT1932ES6#TRPBF 功能描述:IC LED DRIVR WHITE BCKLGT TSOT-6 RoHS:是 类别:集成电路 (IC) >> PMIC - LED 驱动器 系列:- 标准包装:6,000 系列:- 恒定电流:- 恒定电压:- 拓扑:开路漏极,PWM 输出数:4 内部驱动器:是 类型 - 主要:LED 闪烁器 类型 - 次要:- 频率:400kHz 电源电压:2.3 V ~ 5.5 V 输出电压:- 安装类型:表面贴装 封装/外壳:8-VFDFN 裸露焊盘 供应商设备封装:8-HVSON 包装:带卷 (TR) 工作温度:-40°C ~ 85°C 其它名称:935286881118PCA9553TK/02-TPCA9553TK/02-T-ND
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LT1933_1 制造商:LINER 制造商全称:Linear Technology 功能描述:600mA, 500kHz Step-Down Switching Regulator in SOT-23 and DFN Packages
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LT1933ES6#TR 功能描述:IC REG BUCK ADJ 0.6A TSOT23-6 RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 标准包装:2,500 系列:- 类型:升压(升压) 输出类型:可调式 输出数:1 输出电压:1.24 V ~ 30 V 输入电压:1.5 V ~ 12 V PWM 型:电流模式,混合 频率 - 开关:600kHz 电流 - 输出:500mA 同步整流器:无 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:8-SOIC(0.154",3.90mm 宽) 包装:带卷 (TR) 供应商设备封装:8-SOIC