A4950_V3 Datasheet PDF - Allegro MicroSystems

●Description

●Designed for pulse width modulated (PWM) control of DC motors, the A4950 is capable of peak output currents to ±3.5 A and operating voltages to 40 V.

●Input terminals are provided for use in controlling the speed and direction of a DC motor with externally applied PWM control signals. Internal synchronous rectification control circuitry is provided to lower power dissipation during PWM operation.

●Internal circuit protection includes overcurrent protection, motor lead short to ground or supply, thermal shutdown with hysteresis, undervoltage monitoring of VBB, and crossover current protection.

●Features and Benefits

●• Low RDS(on) outputs

●• Overcurrent protection (OCP)

●   ▫ Motor short protection

●   ▫ Motor lead short to ground protection

●   ▫ Motor lead short to battery protection

●• Low Power Standby mode

●• Adjustable PWM current limit

●• Synchronous rectification

●• Internal undervoltage lockout (UVLO)

●• Crossover-current protection

●• Commercial temperature grade (A4950E: –40°C to 85°C )

●• Automotive temperature grade (A4950K: –40°C to 125°C)