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

簡(jiǎn)介

MP3021屬于集成電路（IC）的LED驅(qū)動(dòng)器。由制造生產(chǎn)的MP3021LED 驅(qū)動(dòng)器器件屬于 LED 驅(qū)動(dòng)器電源管理集成電路 (PMIC) 系列，可通過(guò)標(biāo)稱固定電壓的電源為負(fù)載（通常為發(fā)光二極管）提供電流，并且電流可控。它與用于電壓調(diào)節(jié)的類似產(chǎn)品的主要區(qū)別在于，這類器件提供較低的反饋電壓（以提高系統(tǒng)能效），而且通?？蓪?duì)器件工作點(diǎn)進(jìn)行外部控制，可在照明應(yīng)用中用于實(shí)現(xiàn)調(diào)光功能。