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A3955SB Specifications

Detailed technical information and Application Scenarios

Product Details

PartNumberManufactorQuantityAvailability
A3955SBALLEGRO709Yes

Part A3955SB Manufacturer: Allegro MicroSystems** ### **Specifications:** - **Type:** Full-Bridge PWM Motor Driver - **Output Current:** Up to 2 A continuous (3 A peak) - **Operating Voltage Range:** 8 V to 50 V - **PWM Control:** Adjustable

Part A3955SB Manufacturer: Allegro MicroSystems

Specifications:

  • Type: Full-Bridge PWM Motor Driver
  • Output Current: Up to 2 A continuous (3 A peak)
  • Operating Voltage Range: 8 V to 50 V
  • PWM Control: Adjustable frequency up to 100 kHz
  • Logic Input Voltage: 3.3 V or 5 V compatible
  • Protection Features:
  • Thermal shutdown
  • Overcurrent protection
  • Undervoltage lockout
  • Package: 15-lead SIP (Single In-line Package)

Descriptions:

The A3955SB is a full-bridge motor driver designed for bidirectional control of brushed DC motors. It integrates power MOSFETs and control logic, supporting PWM current regulation for efficient motor control. The device is suitable for industrial, automotive, and consumer applications requiring high-current drive capability.

Features:

  • Bidirectional Motor Control
  • Adjustable Current Limit
  • Internal Synchronous Rectification (improves efficiency)
  • Cross-Conduction Protection
  • Low-Power Sleep Mode
  • Fault Diagnostics Output

For detailed electrical characteristics, refer to the official Allegro MicroSystems datasheet.

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