Hall Effect Sensor IC With Thermal Lock Protection ,Auto Restart And Speed Control FunctionWSH41S is designed to integrate Hall Sensor with complementary output drivers and
speed control function together on one chip, it is suitable for speed measurement,
revolution counting, positioning, and DC brushless motors. It includes a temperature
compensated voltage Regulator a Differential Amplifier a Hysteresis controller, two
open-collector output drivers capable of sinking 600mA current load and PS pin
which CAN accept PWM signal to do speed control programming. An on-chip
Protection Diode is implemented to prevent reverse power fault. And built-in thermal
lock protection and auto-restart function is suitable for super high speed fan. It CAN
replace the function of lock protection and auto restart function. The power will be
shutdown automatically at 130C to prevent the coils be damaged and atuo-restart
after cooling down. By Winson Semiconductor Corp.
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