Welcome Cogobuy!

科通芯城 ,中国最大的IC及其他电子元器件交易型电商平台100%正品保证!

SGM3123

所属分类:
LED驱动器
目标应用:
无线手机
MP3, MP4 and PMP
手机
便携式通信设备
数码相机
摄像机
掌上电脑
手持终端
LED /显示背光驱动器
LED用于相机闪光灯
电池供电设备
更多...

产品参数


描述

The SGM3123 low-dropout bias supply for white LEDs is a high-performance alternative to the simple ballast resistors used in conventional white LED designs. It is optimized for low power keypad and portable backlighting applications. 
The SGM3123 uses an internal resistor to set the bias current for four LEDs, which are matched to ±5%. The SGM3123's advantages over ballast resistors include much lower bias variation with supply voltage variation, significantly lower dropout voltage, and in some applications, significantly improved efficiency.
The SGM3123 requires only a 40mV dropout voltage at a 20mA load on each output to match the LED brightness.
The SGM3123 is available in Green TQFN-3×3-16L package. It operates over an ambient temperature range of -40°C to +85°C.

特性

  • Support up to 4 LEDs
    Low 40mV Dropout at 20mA
    Less than ±5% LED Current Matching
    Simple LED Brightness Control
    Low Shutdown Current
    2.5V to 5.0V Supply Voltage Range
    Thermal Shutdown Protection
    Operating Temperature Range: -40℃ to +85℃
    Available in Green TQFN-3×3-16L Package
top 科通云助手