H277D

功能特点

产品名称：20V 300mA 互补输出霍尔效应传感器

Complementary Output Hall Effect Sensor IC

产品型号：H277D

产品描述：

H227 is designed to integrate Hall sensor with output driver together on the same chip. It is suitable for dual coils brush-less DC motors, dual coils brush-less DC fan, speed measurement, and revolution counting.

It includes a band-gap reference voltage source, a Hall device, an amplifier, a hysteretic controller and an open-collector output drive capable of sinking up to 300mA current load. An on-chip protection diode is implemented to prevent reverse power fault.

H277 has a control circuit to prevent “dead angle” from logic race condition in DC Fan. It has excellent characteristic of temperature compensation. The internal temperature compensated voltage source can let sensor to get uniform sensitivity in a wide temperature range.

It is rated for operation over temperature rage from -20℃ to +85℃ and voltage ranges from 3.0V to 20V

产品特点：

On-chip Hall sensor

3.0 to 20V operating voltage

Internal Temperature compensation

Special design providing logic race condition immunity, shorter switching time, and good switch reliability

300mA output sink current

Internal on-chip protection diode

SIP-4L Package

产品应用：

Dual-coil Brush-less DC Motor

Dual-coil Brush-less DC Fan

Revolution Counting

Speed Measurement

参数：

Supply Vol. 供应电压：20V

Output Cur. 输出电流：Max. 300mA

Output Saturation Vol 输出饱和电压：Max.600mV

Operate Point 工作点：Max.130G

Release Point 释放点：Min.-130G

RoSH：PF(无铅)/HF(无卤)

Package : SIP-4