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Product Detailed Parameters
- Description：IC MTR DRV BIPOLAR 8.2-45V 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：1.6A
- Voltage - Supply：8.2V ~ 45V
- Voltage - Load：8.2V ~ 45V
- Operating Temperature：-40°C ~ 150°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：28-VFQFN Exposed Pad
- Supplier Device Package：28-VQFN (5x5)
- Grade：-
- Qualification：-
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Overview
The DRV8812RHDT is a bipolar stepper motor driver from Texas Instruments, housed in a 28-VQFN package. It supports a supply voltage range of 8.2 V to 45 V and delivers an output current of 1.6 A. The device integrates four half-bridge outputs with power MOSFET technology. It operates within a junction temperature range of -40°C to +150°C and features a typical operating supply current of 8 mA.
Feature Summary
- Integrates full control logic and power stages for bipolar stepper motors
- Supports microstepping resolutions down to 1/32 step
- Includes adjustable current limit and blank time control
- Features thermal shutdown and under-voltage lockout protection
Applications
- Office automation equipment
- Industrial automation systems
- Medical devices
- Security systems
Procurement Notes
Verify the RHDT suffix indicates tape and reel packaging when ordering. Confirm the specific revision level matches design requirements. Ensure ESD handling protocols are followed due to moisture sensitivity classification. Cross-reference pinouts with official datasheets before PCB layout finalization.
Selection Notes
Select this component for applications requiring integrated bipolar stepper control with high current capability. The wide voltage range suits various industrial power supplies. Consider the thermal performance of the QFN package for heat dissipation needs. Evaluate microstepping resolution requirements against available control signals.
Part Context
This part belongs to the DRV8812 family of motor drivers designed for precision motion control. It serves as a complete solution for driving bipolar stepper motors without external discrete components. The series is widely used in embedded systems requiring reliable stepper actuation.
Replacement Considerations
Check DRV8812RHDR for identical functionality in reel packaging. Verify DRV8812PWPR for HTSSOP-28 package compatibility if leaded options are required. Ensure substitute parts maintain the same electrical specifications and pinout configuration.
