圣邦微电阻闪光灯驱动：SGM3140和SGM3141

king_zhang

随着智能手机市场需求越来越大，对手机拍照性能的要求也越来也高，圣邦微跟进市场需求，推出500mA和700mA的闪光灯驱动：SGM3140(500mA)和SGM3141(700mA)；该驱动目前在市场上应用非常广泛
SGM3140 /1 Features:
● Output Current up to 500/700mA
● Up to 90% Efficiency in Torch Mode
● Adjustable FLASH Mode Current
● Automatic Buck/Boost Mode Switchover
● Input Voltage Range: 2.7V to 5.5V
● Minimum External Components: No Inductors
● High Frequency Operation: 2.2MHz
● Low 47mV Reference for Low Loss Sensing
● IQ < 1μA in Shutdown
● Automatic Soft Start Limits Inrush Current
● Low Input and Output Ripple and Low EMI
● Output Over Voltage Protection
● Over-current and Over-temperature Protection
● Available in Green DFN3×3-10L Package
● ABSOLUTE MAXIMUM RATINGS :      
    Output Current Pulse (Flash).................0.8A/1A      
    Output Current Continuous (Torch)......0.4A
【文件名】:1272@52RD_SGM3141B.pdf
【格　式】:pdf
【大　小】:468K
【简　介】:
【目　录】:

748521

目前闪关灯驱动手机上应该应用很少了吧，毕竟基带有200MA电流的供电，目前圣邦微闪光灯驱动芯片出货如何？[em01][em01]

zjcpu66

在此谢过！