H277C

Features

Product Name: 20V 300mA Complementary Output Hall Effect Sensor

Complementary Output Hall Effect Sensor IC

Product model: H277C

Product Description:

H277 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

Features:

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

Applications:

Dual-coil Brush-less DC Motor

Dual-coil Brush-less DC Fan

Revolution Counting

Speed Measurement

parameter:

Supply Vol. Supply voltage: 20V

Output Cur. Output current: Max. 300mA

Output Saturation Vol Output Saturation Voltage: Max.600mV

Operate Point: Max.90G

Release Point: Min.-90G

RoSH: PF (lead-free) / HF (halogen-free)

Package : SIP-4