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A4950 : Full-Bridge DMOS PWM Motor Controller

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.

Product Number: A4950

Class: Fan, Motor Controllers, Drivers, Brush DC Drivers, Fan Drivers

Tag: Brush DC Drivers, Full-Bridge DMOS PWM Motor Controller, Motor, Motion

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)

Part Number Type Operating Supply Current Technology Mounting Style Output Current Moisture Sensitive Applications Output Voltage Operating Temperature Operating Supply Voltage Package Type
A4950 Full Bridge 10 mA DMOS Surface Mount 3.5 A Yes General Purpose 3V -40 °C ~ 125 °C(TA) 8V ~ 40V 8-pin SOICN with exposed thermal pad (suffix LJ)

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    Datasheet Download on Mar, 2022

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