DESCRIPTION
The IC is designed to control the speed of DC-motors. In order to determine the motor speed the commutation-related ripple of the motor current is evaluated and converted to a 5V digital signal for the µC. The filtered motor current is also buffered and provided to the µC’s ADC. Many types of motors can be adapted with appropriate filter design.

FEATURES
► Supply voltage range VDD 7V to 16V
► Low standby current typ. 40µA
► Speed regulation using the ripple signal of motor current
► Evaluation of commutation ripple signal
► Fully protected half bridge (slew rate, gate voltage and temperature)
► Overlap free PWM actuation for external power MOS half bridge
► Internal charge pump for 100% actuation
► Adjustable maximum motor voltage
► Conditioning of motor current for external µP and ADC
► Watch dog with emergency function depending on the Kl. 15 signal
► CRASH input for emergency shutoff of pump
► STATUS output for failure analysis
► Over voltage shutdown
► Over temperature shutdown
► – 40°C to + 125°C operating temperature
► SO 24w package

APPLICATION
► Fuel and hydraulic pumps regulator
► Fan regulator
► Speed regulator