PT3921中文资料12V All-in-One Single Coil Smart DC Fan IC数据手册Prolific规格书

描述 Description

The PT3921 is designed for magnetic actuating using a bipolar magnetic field. The built-in dynamic offset cancellation of pre-amplifier stage achieves optimal symmetrical magnetic sensing. The output driver provides a linear drive to eliminate switching noise. This Hall-effect IC is optimal for DC brushless fan application. The supply voltage range is from 2.7V to 17V and the output current is 400mA.

特性 Features

·2.7V~17V supply voltage
·Single phase full wave
·Soft switching output
·Built-in Hall sensor
·Motor locked protection & automatic restart
·ESD protection: 8KV
·Built-in hysteresis comparator
·Built-in Zener diode
·High sensitivity & low thermal drift magnetic sensing
·Low power consumption & high driving efficiency
·Support pre-driver application

应用 Application

·Single coil12V brushless DC fan
·Cooling fan for household electronics
·General purpose cooling fan solution e.g. Audio
·Cooling fan for game consoles.