Microchip MIC2874 Bedienungsanleitung

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 2018 Microchip Technology Inc.DS20006081A-page 1

MIC2874

Features

•Up to 1.2A Flash LED Driving Current

•Highly Efficient Synchronous Boost Driver

•Control through Single-Wire Serial Interface or

External Control Pin

•Input Voltage Range: 2.7V to 5.5V

•True Load Disconnect

•Configurable Safety Time-Out Protection

•Output Overvoltage Protection (OVP)

•LED Short Detection and Protection

•1 µA Shutdown Current

•Available in 9-Bump 1.30 mm x 1.30 mm WLCSP

Package

Applications

•Camera Phones/Mobile Handsets

•Cell Phones/Smartphones

•LED Light for Image Capture/Auto-Focus/

White Balance

•Handset Video Light (Torch Light)

•Digital Cameras

•Portable Applications

General Description

The MIC2874 is a high-current, high-efficiency Flash

LED driver. The LED drivercurrent is generated by an

integrated inductive boost converter with a 4 MHz switch-

ing frequency, which allows for the use of a very small

inductor and output capacitor. These features make the

MIC2874 an ideal solution for high-resolution camera

phone LED Flash light driver applications.

MIC2874 operates in either Flash or Torch mode that can

be controlled through the single-wire serial interface

and/or external control pin. A robust single-wire serial

interface allows the host processor to control the LED

current and brightness. The MIC2874 is available in a

9-bump 1.30 mm x 1.30 mm WLCSP package.

1.2A High-Brightness Flash LED Driver with

Single-Wire Serial Interface

Produktspezifikationen