SG-Micro SGM37863 | Demoboard SGM37863 Demo Board

Description

The SGM37863 is a single LED flash driver that is compact and highly customizable. The constant current LED source allows for flexible adjustment from 16mA up to 1.5A in flash mode, and from 4mA up to 388mA or from 3mA up to 204mA in torch mode, each with 128 levels. It employs a synchronous Boost converter with a fixed frequency of 2MHz or 4MHz to automatically adjust the output voltage to maintain at least minimum headroom voltage VHR across the current source, with VHR being the difference between VOUT and VLED. The utilization of an adaptive control method ensures that the current source is regulated, and efficiency is maximized.

Features

• Optional Working Mode and Programmable LED Currents
• Flash/IR Mode: 16mA to 1.5A with 128 Levels
• Torch Mode: 4mA to 388mA with 128 Levels when
• I_TORCH_SEL = 0
• 3mA to 204mA with 128 Levels when
• I_TORCH_SEL = 1
• 2.7V to 5.5V Input Voltage Range
• Flash Timeout Ranges: 40ms to 1600ms
• Optional Switching Frequency: 2MHz or 4MHz
• Optional Current Limit: 1.9A or 2.8A
• I2C Port for Flexible Working Mode Setting and Status Reporting
• Hardware Flash Enable (STROBE)
• Optimized Flash LED Current with Input Voltage Flash Monitor (IVFM)
• Over-Voltage Protection
• LED and VOUT Short Fault Protection
• Thermal Scale-Back and Thermal Shutdown
• Available in a Green WLCSP-0.8×1.5-8B Package

Typical applications

• IR LED Driver
• Portable Internet Devices and Accessory, Action Cameras, Smart Phones, Tablets

More information

• Datasheet
• IC product information