A4954ELPTR Datasheet PDF - Allegro MicroSystems

●Description

●Designed for pulse width modulated (PWM) control of two DC motors, the A4954 is capable of peak output currents to ±2 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.

●The A4954 is provided in a low-profile 16-pin TSSOP package with exposed thermal pad (suffix LP) that is lead (Pb) free, with 100% matte tin leadframe plating.

●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