DRV8839DSSR

Overview

The DRV8839DSSR is a dual half-bridge motor driver manufactured by Texas Instruments, designed for low-voltage brushed DC motor applications. It features an output current capability of 1.8 A and operates within a supply voltage range of 1.8 V to 11 V. The device includes individual control interfaces for each half-bridge, allowing independent PWM operation. It functions reliably across a temperature range of -40°C to +85°C and utilizes a WSON-12 surface-mount package with a standby supply current of 120 nA.

Feature Summary

• Dual half-bridge architecture enabling independent control of two brushed DC motors or one stepper motor coil pair.
• Integrated circuitry for regulating and limiting winding current to protect the driver and motor.
• Low quiescent supply current design supports extended battery life in portable motion control systems.

Applications

• Brushed DC motor control in consumer electronics
• Motion control for small appliances and toys
• Solenoid driving in low-voltage systems

Procurement Notes

Verify that the ordering suffix DSSR corresponds to the WSON-12 package and reel/cut-tape packaging configuration as specified in the official datasheet. Confirm that the component meets RoHS compliance requirements for your specific manufacturing process. Ensure that the input voltage does not exceed the maximum rating of 11 V during operation to prevent device damage.

Selection Notes

Select this component when independent control of two half-bridges is required rather than a full H-bridge configuration. It is suitable for applications needing up to 1.8 A continuous current per channel. Consider the WSON-12 package size constraints and thermal dissipation capabilities relative to the PCB layout. Verify compatibility with the system's logic voltage levels for the control interface signals.

Part Context

This part belongs to the DRV8839 series of low-voltage motor drivers from Texas Instruments. It is distinct from the DRV8835, which is a dual H-bridge stepper driver, and the DRV8838, which is a single half-bridge driver in a smaller WSON-8 package. The DRV8839 provides flexibility for driving two separate DC motors or controlling a bipolar stepper motor using two channels.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. The DRV8839EVM is an evaluation module for this device, not a direct replacement. Engineers should consult the manufacturer for updated availability or alternative components if this specific part number is discontinued.

FAQ

What is the maximum supply voltage for the DRV8839DSSR?

The maximum supply voltage (Vs) for the DRV8839DSSR is 11 V.

Does the DRV8839DSSR support independent control of its bridges?

Yes, the device features individual control interfaces for each of the two half-bridges, allowing independent PWM operation.