MP3412数据手册集成电路（IC）的LED驱动器规格书PDF

描述 Description

High efficiency step-up WLED driver with true output load disconnect function in a low profile 6-lead Thin-SOT23 package. The MP3412 can startup from an input voltage as low as 0.8V and provides in-rush current limiting as well as output short circuit protection. The open load protection is also integrated. A switching frequency of 1MHz minimizes overall solution footprint by allowing the use of tiny, low profile inductors and ceramic capacitors. Current mode PWM control with internal compensation reduces external parts, thereby saving critical board space. The device also features low shutdown current of under 1µA. The true output disconnect feature allows the output to be completely discharged in shutdown. It also limits the inrush of current during start-up, minimizing surge current seen by the input supply. The MP3412 is available in 6-pin thin SOT23 package.  

特性 Features

• Input Range: 0.8V to 4.4V
• Output Range: 2.5V to 5.0V
• 0.8V Low Start-Up Voltage
• Internal Power MOSFET and Synchronous Rectifier
• 1MHz Fixed Switching Frequency
• Current Mode Control with Internal Compensation
• Up to 96% Efficiency
• <1µA Shutdown Current
• Tiny External Components
• True Output Load Disconnect
• Inrush Current Limiting and Internal Soft-Start
• Open-Load Protection
• Short-Circuit Protection
• Available in TSOT23-6 Package

简介

MP3412属于集成电路（IC）的LED驱动器。由制造生产的MP3412LED 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。