MP3021数据手册集成电路（IC）的LED驱动器规格书PDF

描述 Description

The MP3021 is a WLED driver that can drive up to 4 backlight WLEDs at up to 30mA each. Backlight brightness can be adjusted with a 5 bit register plus one bit for precise low brightness control. The MP3021 employs a super efficient inductorless charge pump with 1x, 1.5x and 2x automatic mode control to achieve high efficiency power conversions. Monolithic Power System?s single wire MPCTM serial data link provides a simple and fast interface used to enable, disable and set current levels for each LED. In addition, soft start limits the inrush current during startup and mode switching. Each output is current limited, providing controlled brightness and short circuit protection. Thermal shutdown protection guards against excessive loads and shorts. The tiny 3mm x 3mm QFN 16-pin package and small external capacitors deliver the most compact white LED solution available.

特性 Features

● Backlight: up to 4 WLEDs at 30mA Each
● Single Wire Serial Bus (MPCTM Serial Data Link): o Simple, Low Overhead Solution o Fast Data Transfer Rate
● Good Current Matching at Low LED Current
● Thermal Shutdown Protection
● Under Voltage Protection
● Available in a 3mm x 3mm 16-Pin QFN Package
● Low EMI Noise

简介

MP3021属于集成电路（IC）的LED驱动器。由制造生产的MP3021LED 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。