MP3307数据手册集成电路（IC）的LED驱动器规格书PDF

描述 Description

The MP3307 is a non-synchronous WLED step-up driver with a 2.7V to 5.5V input range. It uses peak current mode to regulate the LED current sensed through an external low-side resistor.
The MP3307 features up to 2.2MHz of programmable switching frequency, making it easy to avoid noise interference, optimize efficiency, and reduce the output filter component size. To extend the dimming range, both analog and PWM dimming modes are supported with a separate input.
The MP3307 has LED open protection, output over-voltage protection, cycle-by-cycle current-limit protection, and thermal shutdown protection.
The MP3307 is available in a TSOT23-8 package, which is ideal for use in video displays.

特性 Features

●2.7V to 5.5V Input Voltage
●Analog Dimming with >20kHz Input Signal
●Direct PWM Dimming Mode with 100Hz to 2kHz Input Signal
●Up to 2.2MHz Programmable Switching Frequency
●Low 200mV Feedback Voltage with ?% Accuracy at Room Temperature
●24V Open-Load Protection Threshold
●UVLO and Thermal Shutdown
●Cycle-by-Cycle Over-Current Protection
●Available in a TSOT23-8 Package

简介

MP3307属于集成电路（IC）的LED驱动器。由制造生产的MP3307LED 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。