MP3312L数据手册集成电路（IC）的LED驱动器规格书PDF

描述 Description

The MP3312L is a dual-channel, step-up WLED driver with an integrated 40V MOSFET. It supports a 2.7V to 5.5V power supply input and uses peak current mode to regulate the LED current, which is set by an external resistor.
The MP3312L employs a 600kHz fixed switching frequency. It supports both PWM input analog dimming and digital analog dimming to regulate the dimming current accurately.
The MP3312L integrates a current source to balance the LED current, which leads to good ILED matching and accuracy performance.
In addition, the MP3312L has both LED open and short protection, cycle-by-cycle current limit protection, and thermal shutdown protection. It is available in a tiny WLCSP1.35x1.35-9mm package.

特性 Features

●2.7V~5.5V Input Voltage
●600kHz Switching Frequency
●Dual Channels Support up to 30mA/String
●1% Current Matching between LED Channels
●+/-2% Current Accuracy
●38V OVP
●PWM Input Analog Dimming Mode
●5kHz to100kHz PWM Input Analog Dimming
●1-Wire Interface for Digital Dimming
●9-Bit Dimming Resolution
●Internal Soft Start to Reduce Inrush Current
●Available in WLCSP1.35x1.35-9mm Package

简介

MP3312L属于集成电路（IC）的LED驱动器。由制造生产的MP3312LLED 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。