A4954: Dual Full-Bridge DMOS PWM Motor Driver

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.

DATASHEETS
SAMPLE & BUY

Astrorep Inc. (Allegro and Sanken Semiconductors, Sanken Power Supplies)
141 John Street, Suite 300
Babylon, NY 11702
Phone: (631)422-2500
Fax: (631)422-2504
Web: www.astrorepinc.com
Email: donna.tweedy@astrorepinc.com

If this is not your local representative, find your local sales rep here.

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  • Features and BenefitsFeatures and Benefits
  • PackagingPackaging
  • Technical DocsTechnical Docs
  • NewsNews
  • 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

    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.

    LP TSSOP 16 pin

    Click the image to view larger
    Product Image Functional Block Diagram

    Part Number Specifications and Availability

    Part Number Package Type Temperature RoHS
    Compliant
    Part Composition /
    RoHS Data
    Comments Samples Check
    Distributor Stock
    A4954ELP-T 16-lead TSSOP -40°C to 85°C Yes View Data Contact your
    local sales rep
    Check Stock
    A4954ELPTR-T 16-lead TSSOP -40°C to 85°C Yes View Data Contact your
    local sales rep
    Check Stock
    APEK4954ELP-01-T DEMO BOARD -40°C to 85°C No -- Contact your
    local sales rep
    Check Stock

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