SDC209
The SDC209 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 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: 2.5V~20V
250mA(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
