Quality Standards and Environmental Certifications
×

Contact Sales

Have Questions? Let us help!

We're passionate about innovation. Reach out and you'll hear back from an expert shortly.

Required*

This field is required

This field is required

Please enter a valid Email Address

This field is required

This field is required

This field is required

This field is required

This field is required

This field is required

Thank you for connecting with us!

One of our solution experts will be in touch with you shortly. Keep reading to learn more about our industry leading solutions.


Full-Bridge DMOS PWM Motor Controller

A4950

Allegro LJ SOIC with exposed pad 8-pin package

A4950 ECAD Model
Download Datasheet
Navigate

Description

Top Features

Packaging

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 motor 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.

For high ambient operating temperature applications, an automotive grade device is offered (A4950K). The K grade device is tested across extended temperature and voltage ranges to ensure compliance in automotive or industrial applications.

  • 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
  • A4950K is AEC-Q100 Grade 1 qualified
  • Commercial temperature grade (A4950E: -40°C to 85°C )
  • Automotive temperature grade (A4950K: -40°C to 125°C)

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.

× not found

Part Number Specifications and Availability

Documentation and Resources

Documentation

Filter Document Type:
All Types
All Types Brochure Guide
Documents Found: 32
Document Type Document Name
Brochure
Brochure: Battery Management Systems
Brochure
DC Fast Charging: Faster and Farther
Brochure
Comfort Through Sustainability - Unlock the Power of Heat Pump Innovation
Guide
A4950 Evaluation Board User Guide