参数资料
型号: LT3475EFE-1#PBF
厂商: Linear Technology
文件页数: 18/20页
文件大小: 0K
描述: IC LED DRVR HP CONS CURR 20TSSOP
标准包装: 74
恒定电流:
拓扑: PWM,降压(降压)
输出数: 2
内部驱动器:
类型 - 主要: 车载,背光
类型 - 次要: 颜色,白色 LED
频率: 200kHz ~ 2MHz
电源电压: 3.7 V ~ 36 V
安装类型: 表面贴装
封装/外壳: 20-TSSOP(0.173",4.40mm 宽)裸露焊盘
供应商设备封装: 20-TSSOP-EP
包装: 管件
工作温度: -40°C ~ 85°C
LT3475/LT3475-1
TYPICAL APPLICATIONS
Dual Step-Down 1.5A Red LED Driver
V IN
5V TO 28V
C1
4.7 μ F
35V
D3
V IN
SHDN
D4
C2
BOOST1
BOOST2
C3
L2
10 μ H
0.22 μ F
35V
LT3475
0.22 μ F
35V
L1
10 μ H
C4
D1
SW1
OUT1
SW2
OUT2
D2
C5
2.2 μ F
LED1
LED2
2.2 μ F
6.3V
V C1
V C2
6.3V
C6
0.1 μ F
REF
R T
C7
0.1 μ F
1.5A LED
CURRENT
LED 1
V ADJ1
GND
V ADJ2
R1
24.3k
LED 2
1.5A LED
CURRENT
D1, D2: B240A
D3, D4: MMSD4148T1
f SW = 600kHz
3475 TA06
C1 TO C5: X5R OR X7R
3475fb
18
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