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- Switch Hall IC-SDC277
- Model：SDC277
- The SDC277 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.
SHOW
Switch Hall IC
MODEL：SDC277
一、General Description
The SDC277 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.
二、Features
Wide operating voltage range: 3.5V~20V
250mA(AVG) output sink current
Building-in protection diode
Operating temperature range: -20°C~85°C
Package: TO-94
三、Applications
Brushless DC motor
Brushless DC fan
Revolution counting
Speed measurement
四、Package Type
五、Pin Configuration
六、Functional Block Diagram
七、Ordering Information
