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Product Detailed Parameters
- Description：18V, 2A dual H-bridge motor driv
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT)
- Motor Type - Stepper：Bipolar
- Motor Type - AC, DC：Brushed DC
- Function：Driver - Fully Integrated, Control and Power Stage
- Output Configuration：Half Bridge (4)
- Interface：PWM
- Technology：NMOS
- Step Resolution：-
- Applications：General Purpose
- Current - Output：2A
- Voltage - Supply：4V ~ 18V
- Voltage - Load：4V ~ 18V
- Operating Temperature：-40°C ~ 125°C
- Mounting Type：Surface Mount
- Package / Case：10-PowerTFSOP, 10-MSOP (0.118", 3.00mm Width)
- Supplier Device Package：10-HVSSOP
- Grade：-
- Qualification：-
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Overview
The DRV8421BDGQR is a dual H-bridge motor driver manufactured by Texas Instruments, designed for driving bipolar stepper motors and brushed DC motors. It integrates control logic and power stages within a single NMOS-based package. The device operates on a supply voltage range of 4V to 18V and delivers an output current of 2A per channel. It supports PWM interface control and offers selectable step resolutions of 1 or 1/2. The component is housed in a 10-VSSOP package with exposed thermal pad.
Feature Summary
- Integrates full H-bridge drivers with control logic for simplified system design
- Supports both bipolar stepper and brushed DC motor applications
- Features adjustable current limit protection for enhanced reliability
Applications
- Bipolar stepper motor control systems
- Brushed DC motor drives
- General purpose motor control applications
Procurement Notes
Verify the specific suffix 'DGQR' against the official Texas Instruments datasheet to confirm the exact tape-and-reel packaging configuration and temperature grade. Ensure the ordering part number matches the required package variant and environmental specifications before finalizing procurement.
Selection Notes
Select this component when a compact dual-channel solution is required for low-voltage motor applications. It is suitable for designs needing integrated power switches without external MOSFETs. Consider the thermal performance of the VSSOP package relative to the expected load current and ambient operating conditions.
Part Context
This part belongs to the DRV842x family of dual H-bridge drivers from Texas Instruments. These devices are engineered for cost-sensitive and space-constrained motor control applications. The family provides a unified platform for managing small motors in consumer electronics and industrial automation equipment.
Replacement Considerations
Consult the Texas Instruments product selection guide for direct pin-compatible alternatives within the DRV842x series. Verify that any substitute maintains the same voltage rating, current capacity, and package dimensions.
