The PT3953 is designed for magnetic actuating using a bipolar magnetic field. The built-in dynamic offset cancellation of pre-amplifier stage achieves optimal symmetrical magnetic sensing. The output driver provides a linear drive to eliminate switching noise. This Hall-effect IC is optimal for notebook cooling fan application with speed controllable by PWM input signal. The supply voltage range is from 1.8V to 8.5V and the output current is 400mA.
PT3953 /PKG:TSOT26F -6pins