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Product Detailed Parameters
- Description：35V, 2.5A BIPOLAR STEPPER OR DUA
- 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 (2)
- Interface：Phase/Enable (PH/EN)
- Technology：Power MOSFET
- Step Resolution：-
- Applications：Consumer, Industrial
- Current - Output：2.5A
- Voltage - Supply：0V ~ 5.5V
- Voltage - Load：4.5V ~ 33V
- Operating Temperature：-40°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Package / Case：28-PowerTSSOP (0.173", 4.40mm Width)
- Supplier Device Package：28-HTSSOP
- Grade：-
- Qualification：-
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Overview
The DRV8424EPWPR is a dual H-bridge stepper motor driver manufactured by Texas Instruments, housed in an HTSSOP-28 package. It supports bipolar stepper motors and dual brushed DC motors with a maximum supply voltage of 35 V and continuous output current of 2.5 A per bridge. The device operates on a supply voltage range of 4.5 V to 33 V, with a quiescent supply current of 5 mA. It features integrated current sense amplifiers for precise control and thermal shutdown protection. The component functions within a temperature range of -40°C to +125°C.
Feature Summary
- Integrated current sense amplifiers enable accurate phase current regulation without external shunt resistors.
- Smart Tune technology automatically optimizes microstepping performance based on motor parameters.
- Supports STEP/DIR interface with selectable microstepping resolutions up to 1/256.
Applications
- Bipolar stepper motor control systems
- Dual brushed DC motor drives
- Automotive motion control applications
Procurement Notes
Verify the specific suffix 'PWPR' corresponds to the HTSSOP-28 package and tape-and-reel quantity when ordering. Confirm RoHS compliance status through the manufacturer's official documentation prior to integration. Ensure ESD handling protocols are followed due to moisture sensitivity classification.
Selection Notes
Select this component for applications requiring high-resolution microstepping and integrated current sensing. It is suitable for designs needing a compact solution with built-in thermal protection. Consider the operating voltage range and package thermal characteristics against system constraints.
Part Context
This part belongs to the DRV8424E/P family of dual H-bridge drivers. It shares core functionality with variants like DRV8424PPWPR but may differ in qualification or packaging details. The series emphasizes smart tuning and integrated sensing for simplified motor drive design.
Replacement Considerations
Direct substitutes include other DRV8424 variants such as DRV8424PPWPR or DRV8424PRGER, provided pin compatibility and package requirements match. Verify electrical specifications and qualification levels before substitution.
FAQ
What is the maximum microstepping resolution supported?
The device supports microstepping resolutions up to 1/256 step.
Does the DRV8424EPWPR require external current sense resistors?
No, it features integrated current sense amplifiers that eliminate the need for external shunt resistors.
