Allegro MicroSystems

A4950 DMOS Full-Bridge Motor Driver IC

Allegro's A4950 DMOS for pulse width modulated control of DC motors

Image of Allegro MicroSystems' A4950 DMOS Full-Bridge Motor Driver ICAllegro's A4950 DMOS full-bridge motor driver IC is designed for pulse width modulated (PWM) control of DC motors, and 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 crossovercurrent protection.

The A4950 is provided in a low-profile 8-pin SOICN package with exposed thermal pad (suffix LJ) that is lead (Pb) free, with 100% matte tin leadframe plating.

Features
  • Overcurrent protection (OCP)
    • Motor short protection
    • Motor lead short to ground protection
    • Motor lead short to battery protection
  • Low RDS(on) outputs
  • Low power standby mode
  • Adjustable PWM current limit
  • Synchronous rectification
  • Internal undervoltage lockout (UVLO)
  • Crossover-current protection

A4950

ObrazManufacturer Part NumberOpisDostępna ilość Cena
IC MOTOR DRIVER 8V-40V 8SOICA4950ELJTR-TIC MOTOR DRIVER 8V-40V 8SOIC35147 - Immediate$7.76Wyświetl szczegóły
IC MOTOR DRIVER 8V-40V 8SOICA4950KLJTR-TIC MOTOR DRIVER 8V-40V 8SOIC6835 - Immediate$9.55Wyświetl szczegóły
Published: 2013-07-02

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