MP4651数据手册集成电路（IC）的LED驱动器规格书PDF

描述 Description

The MP4651 is a high performance off-line LED driver designed for powering the LEDs especially for high power isolated application.? The MP4651 utilizes fixed operating frequency PWM control. It outputs two 180 degree phase shifted driving signals for various external power stages. Its enhanced 9V gate driver provides adequate driving capability for the external MOSFETs and directly drives the external gate driving transformer.? The MP4651 implements fast and high contrast ratio PWM dimming to the LEDs. PWM dimming is controlled with either an external DC voltage or PWM signal. The burst dimming frequency can be synchronized to an external synchronizing signal.? The Built-in fault management features include open LED protection, short LED protection, over voltage protection, and over temperature protection. The protection interface is flexible for various setups and is easy to use. MP4651 integrates a delay timer to recover the system. The MP4651 is available in a 16-pin SOIC package.

特性 Features

● 9V Enhanced Gate Driver
● Programmable Fixed Operating Frequency
● Input Voltage Range from 9V to 30V
● DC or PWM Input Dimming Control
● Burst Dimming Frequency Synchronization
● Smart Fault Protection Interface
● Built-in Fault Management
● Built-in Delay Timer for System Recovery
● Available in?a SOIC16 Package

简介

MP4651属于集成电路（IC）的LED驱动器。由制造生产的MP4651LED 驱动器器件属于 LED 驱动器电源管理集成电路 (PMIC) 系列，可通过标称固定电压的电源为负载（通常为发光二极管）提供电流，并且电流可控。它与用于电压调节的类似产品的主要区别在于，这类器件提供较低的反馈电压（以提高系统能效），而且通常可对器件工作点进行外部控制，可在照明应用中用于实现调光功能。