F2961

DESCRIPTION 

The UTC F2961 is a high efficient, single phase and bipolar 

drive direct PWM drive motor driver IC. It is suitable for variable 

speed control FAN of personal computer’s power supply radiation 

and CPU cooler with over temperature protection. 

FEATURES 

* Single phase bipolar drive(16V, 1A output transistor built in.) 

* Built in variable speed function with thermistor input signal. 

 (External excitations direct PWM of upper side transistor control, 

low noise and low vibration.) 

* Include re-circulation Diode and external parts are few. 

* Include Hall bias circuit and thermal shut down circuit. 

* Minimum speed settable. 

* Full drive at open thermistor. 

* Lock protect and auto restart function. 

* FG output and RD output signal available. 

规格书F2961