Features
Drives a DC Motor or Other Loads
Rdson HS + LS: 460mΩ
3.6-A Maximum Drive Current
VM: 6.5V to 45V Operating Voltage Range
PWM Control Interface
Low-Power Sleep Mode
Small Package and Footprint
–8-Pin SOP With Power PAD
–WBESOP-8L
Short-Circuit Protection (OCP)
Over-Temperature Protection(OTP)
Under-Voltage Protection(UVLO)
Automatic Fault Recovery
Description
The AWD8872ASPR provides an integrated motor driver solution for printers, appliances, industrial equipment, and other small machines. The device can supply up to 3.6A of output current. It operates on a motor power supply voltage from 6.5V to 45V. The output driver block consists of N-channel power MOSFETs configured as an H-bridge to drive the motor winding. The inputs can be pulse width modulated (PWM) to control motor speed, using a choice of current-decay modes. Setting both inputs low enters a low-power sleep mode.
The AWD8872ASPR device features integrated current regulation, based on an internal reference voltage and the voltage on the ISEN pin, which is proportional to motor current through an external sense resistor. The ability to limit current to a known level can significantly reduce the system power requirements and bulk capacitance needed to maintain stable voltage, especially for motor startup and stall conditions.
Internal shutdown functions are provided for Over-current protection (OCP), Short-circuit protection, Under-voltage lockout (UVLO), and Over-temperature protection (OTP). When the fault condition is removed, the device automatically resumes normal operation.
