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Product Detailed Parameters
- Description：IC MTR DRV BIPOLAR 6.5-45V 28QFN
- 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：Parallel
- Technology：Power MOSFET
- Step Resolution：-
- Applications：General Purpose
- Current - Output：1.4A
- Voltage - Supply：6.5V ~ 45V
- Voltage - Load：6.5V ~ 45V
- Operating Temperature：-40°C ~ 150°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：28-WFQFN Exposed Pad
- Supplier Device Package：28-WQFN (5.5x3.5)
- Grade：-
- Qualification：-
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Overview
The DRV8881PRHRT is a bipolar stepper motor driver and dual H-bridge controller manufactured by Texas Instruments. It features an integrated power MOSFET architecture with a maximum output current of 2.5 A per channel. The device operates within a supply voltage range of 6.5 V to 45 V and supports a quiescent operating current of 8 mA. It is housed in a 28-WQFN package with dimensions of 5.5x3.5 mm, designed for surface-mount installation. The component functions across an extended temperature range from -40°C to +150°C junction temperature.
Feature Summary
- Integrates full control logic and power stage into a single compact solution
- Supports self-tuning capabilities for optimized stepper motor performance
- Utilizes parallel interface for straightforward digital control connections
Applications
- Bipolar stepper motor control systems
- Dual H-bridge brushed DC motor applications
- General-purpose motion control circuits
Procurement Notes
Verify the specific suffix 'PRHRT' against the official datasheet to confirm the reel quantity and tape specifications. Ensure compatibility with the 28-WQFN footprint during PCB layout. Cross-reference the manufacturer's latest product change notices to confirm current production status and material composition updates prior to finalizing procurement orders.
Selection Notes
Select this component when a fully integrated stepper driver with high current capability is required. The wide voltage range suits various industrial power supplies. Consider the thermal performance of the WQFN package for heat dissipation requirements. Verify that the parallel interface aligns with the available microcontroller GPIO resources for step and direction control signals.
Part Context
This part belongs to the DRV8881 family of motor drivers from Texas Instruments. The family includes variants such as DRV8881ERHRR and DRV8881PPWPR, which share similar electrical characteristics but differ in packaging types like HTSSOP or standard WQFN. These devices are categorized under PMIC and motor controllers, targeting efficient motion management in embedded systems.
Replacement Considerations
Direct substitutes include other DRV8881 variants such as DRV8881ERHRR or DRV8881PPWPR, provided the package type matches the existing board footprint. Alternative packages may require mechanical redesign. Check for any obsolescence notices associated with the PRHRT suffix before transitioning to alternative inventory sources.
