ams AS1170 2-channel LED and VCSEL driver IC

ams AS1170 2-channel LED and VCSEL driver IC
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品目

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.
データシート
AS1170 High current LED/VCSEL driver
英語
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詳細

特徴

  • 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

利点

  • 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

パラメーター

Package
WLCSP
Interface
input
I²C
output
I²C
Package dimension
h 典型
0.6 mm
l 典型
2.25 mm
w 典型
1.5 mm
Supply voltage
典型
3.7 V
最小
2.7 V
最大
4.4 V
電流
IF 最大
1000 mA
電流シンクの数
2

注文コード

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