DRV8838DSGT

Overview

The DRV8838DSGT is a low-voltage H-bridge motor driver manufactured by Texas Instruments, designed for driving brushed DC motors and solenoids. It features an integrated NMOS half-bridge output stage capable of delivering up to 1.8 A of continuous output current. The device operates with a logic supply voltage (VCC) range of 1.8 V to 7 V and a motor supply voltage (VM) range of 0 V to 11 V. It utilizes a PH-EN interface for control and includes a dedicated nSLEEP pin for power management. The component is housed in an 8-pin WSON package measuring 2.0 mm x 2.0 mm with a thermal pad.

Feature Summary

• Integrates an H-bridge configuration using N-channel MOSFETs with a built-in charge pump for gate drive generation.
• Supports PH-EN input interface compatible with standard industry control signals.
• Includes comprehensive protection mechanisms such as overcurrent protection, short-circuit protection, undervoltage lockout, and thermal shutdown with automatic recovery.

Applications

• Brushed DC motor control in camera modules
• Motion control systems in consumer electronics
• Solenoid actuation in battery-powered toys

Procurement Notes

Verify the specific suffix 'G4' or absence thereof against the manufacturer's official documentation, as suffixes can indicate RoHS compliance or packaging variations that do not alter electrical function but affect procurement compatibility. Confirm the component status, as this part number may be obsolete or subject to production changes. Ensure the ordering document explicitly references the DRV8838 family specifications to avoid substitution errors with similar variants like the DRV8837.

Selection Notes

Select this component when a single-channel H-bridge driver with a PH-EN interface is required for low-voltage applications. It is suitable for designs needing a compact 8-pin WSON footprint and integrated power stages. Consider the DRV8837 if PWM input control is preferred over PH-EN. Evaluate the thermal performance requirements given the small package size and ensure the application voltage stays within the specified 11 V motor supply limit.

Part Context

The DRV8838DSGT belongs to the DRV883x series of low-voltage H-bridge drivers from Texas Instruments. This series is engineered for portable and battery-operated devices requiring efficient motor control in minimal space. The DRV8838 variant specifically distinguishes itself from the DRV8837 by its PH-EN control interface, while sharing identical electrical characteristics and protection features within the same 8-WSON package family.

Replacement Considerations

Public confirmed substitute: DRV8838DSGR.