PC177高灵敏度锁存霍尔集成电路
The PC177 is an integrated Hall Effect latch sensor designed for electronic commutation of brush-less DC motor applications. The device includes an on-chip Hall voltage generator for magnetic sensing, a comparator that amplifiers the Hall voltage, and a Schmitt to provide switching hysteresis for noise rejection, and open-collector output. An internal bandgap regulator is used to provide temperature compensated supply voltage for internal circuits and allows a wide operating supply range.
A north pole of sufficient strength will turn the output “ON” (Low). While the magnetic flux density (B) is larger than threshold Bop, the output pin is “ON”. If B removed toward Brp, the output pin is latched “ON” state prior to B < Brp. When B < Brp, the output pin goes into “OFF” state.
The PC177 is available in SIP-3L(TO-92S) package.
产品特性及优点
- Bipolar Hall Effect Latch Sensor
- Wide operating voltage range: 3.5V~24V
- Open Collector Pre-Driver
- Maximum output sink current: 40mA
- Chip Power Reverse-Connection Protection
- Operating Temperature: -40℃~+125℃
- Package: SIP3L (TO-92S)
产品应用领域
Rotor Position Sensing
Current Switch
Encoder
RPM Detection
Brush-less DC Motor
Brush-less DC Fan
Revolution counting
Speed measurement
封装形式
