双线圈风扇驱动芯片

SDC276

The SDC276 is an integrated circuit which includes Hall sensor and output drive circuits. It’s widely used in 2-phase brushless DC motor and fan. It’s composed of power reverse protection circuit, high stable voltage regulator, Hall voltage generator, a differential amplifier, Schmitt trigger and open collector output (DO, DOB). In the case of power supply reverse connecting, the internal protection diode can protect IC but not protect coil, a protection diode can be added if necessary.


Features
Wide operating voltage range: 3.5V~20V
300mA(AVG) output sink current
Building-in protection diode
Operating temperature range: -20°C~85°C
Package: TO-94

Applications
Brushless DC motor
Brushless DC fan
Revolution counting
Speed measurement
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