部品番号
HM7146
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Shenzhen Huazhimei Semiconductor Co., Ltd
HM7146 データシート - Shenzhen Huazhimei Semiconductor Co., Ltd
Shenzhen Huazhimei Semiconductor Co., Ltd
Overview
HM7146 is a single-channel high-voltage linear constant current LED driver chip. HM7146 uses linear constant current technology to set the driving current of the LED light string through an external resistor. It adopts a two-stage structure with flexible configuration and can adapt to the application requirements of various LED lamps from 3 to 18 watts. It adopts adaptive valley filling patented technology. It greatly improves the efficiency and linear regulation rate of the power supply system, and the maximum driving power of a single IC can be increased to 18W.
Features
◾ Output constant current setting 5~60mA
◾ Constant current accuracy deviation between chips <+/-4%
◾ With temperature compensation and overheating protection functions
◾ Input power linear adjustment rate<2%/10V
◾ PF value>0.5, can also be configured with high PF value
◾ Simple wiring and low cost of power supply system
◾ ESOP8 package
Application areas
◾ LED fluorescent tube T5/T8 and other specifications
◾ LED ceiling lamp, table lamp
◾ LED bulbs, downlights
◾ LED street lights, street lights
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