参数资料
型号: LT3591EDDB#TRPBF
厂商: Linear Technology
文件页数: 12/16页
文件大小: 0K
描述: IC LED DRIVER WHITE BCKLGT 8-DFN
标准包装: 2,500
拓扑: PWM,升压(升压)
输出数: 1
内部驱动器:
类型 - 主要: 背光
类型 - 次要: 白色 LED
频率: 750kHz ~ 1.2MHz
电源电压: 2.5 V ~ 12 V
安装类型: 表面贴装
封装/外壳: 8-WFDFN 裸露焊盘
供应商设备封装: 8-DFN(3x2)
包装: 带卷 (TR)
工作温度: -40°C ~ 85°C
LT3591
TYPICAL APPLICATIONS
Li-Ion Driver for Ten White LEDs
Ef?ciency
L1
D1
22 μ H
*OPTIONAL
85
V IN = 3.6V
10 LEDs
80
V IN
3V TO 5V
SHUTDOWN
V IN
SW
LT3591
CAP
R SENSE
10 ?
75
70
NO SCHOTTKY
AND DIMMING
CONTROL
CTRL
GND
LED
C2
65
E XTERNAL       SCHOTTK Y
C1
1 μ F
2.2 μ F
60
55
0
5
10
15
20
LED CURRENT (mA)
3491 TA02b
C1:TAIYO YUDEN EMK107BJ105MA
C2: MURATA GRM31CR71H225KA88
L1: TAIYO YUDEN NR4018T220M
D1: PHILLIPS PMEG4005AEA
Li-Ion Driver for Four White LEDs at 50mA
Ef?ciency
SHUTDOWN AND
DIMMING CONTROL
80
V IN = 3.6V
4 LEDs
V IN
3V TO 5V
V IN
CTRL
CAP
75
L1
10 μ H
SW
LT3591
LED
R SENSE
3.92 ?
70
GND
C2
C1
1 μ F
4.7 μ F
65
60
0
10
20
30
40
50
C1:TAIYO YUDEN EMK107BJ105MA
C2: MURATA GRM31CR71H475KA12L
LED CURRENT (mA)
3591 TA03b
L1: MURATA LQH32CN100K53
3591f
12
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