ams AS1170 2-channel LED and VCSEL driver IC

ams AS1170 2-channel LED and VCSEL driver IC
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描述

The AS1170 is a 2-channel LED/VCSEL driver with integrated boost converter. It can support up to 5.5V output voltage and each channel can support 1000mA output current. Currents can be combined to a total of 2000mA and adjusted using 31.25kHz PWM operation. AS1170 features integrated protection functions against overtemperature, over- or under voltage and open of shorted LED pins. The device has an I2C interface with 2 adresses, selectable via an I2C select pin. The 13 balls WLCSP makes this chip a good fit wherever high output currents and a tiny footprint are needed.
产品规格书
AS1170 High current LED/VCSEL driver
English
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详情

特点

  • High efficiency 4 MHz fixed frequency DCDC boost converter
  • Independent channel control
  • High output current
  • Channels can be combined for single output
  • Integrated protection functions
  • Automatic current adjustment for low battery voltage
  • 13 balls WLCSP 2.25 mm x 1.5 mm x 0.6 mm

优势

  • Very compact/small 1µH inductor due to fast switching frequency
  • Can drive 2 channels independently with up to 1000mA each or 2000mA combined
  • Integrated circuit protection
  • Automatic battery lifetime extension
  • Tiny footprint and BOM for applications with space constraints

产品参数

封装
WLCSP
接口
输入
I²C
输出
I²C
封装尺寸
h 典型值
0.6 mm
l 典型值
2.25 mm
w 典型值
1.5 mm
电源电压
典型值
3.7 V
最小值
2.7 V
最大值
4.4 V
电流
IF 最大值
1000 mA
电流接收器数量
2

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