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Product Detailed Parameters
- Description：IC MOTOR DRIVER
- 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：Power MOSFET
- Step Resolution：-
- Applications：Printer
- Current - Output：2.5A
- Voltage - Supply：4.5V ~ 48V
- Voltage - Load：4.5V ~ 48V
- 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 DRV8434PPWPR is a bipolar stepper or dual brushed motor driver manufactured by Texas Instruments. It operates with a supply voltage range of 4.5 V to 48 V and delivers an output current of 2.5 A. The device features integrated current sensing with ±4% full-scale accuracy, eliminating the need for external sense resistors. It supports microstepping resolutions up to 1/256 via a simple STEP/DIR interface. The component is housed in a 28-pin HTSSOP package and functions within a temperature range of -40°C to +125°C.
Feature Summary
- Integrated current sensing eliminates external sense resistors
- Supports high-resolution microstepping up to 1/256
- Simple STEP/DIR interface for control
Applications
- Bipolar stepper motor control systems
- Dual brushed DC motor drives
- Industrial automation equipment
- Motion control applications requiring precise positioning
Procurement Notes
Verify the specific ordering suffix to ensure the correct package variant and tape-and-reel configuration match your assembly requirements. Confirm that the 48-V maximum rating aligns with your system's power supply design. Check for moisture sensitivity labeling if storage conditions are not controlled. Ensure the HTSSOP-28 footprint matches your PCB layout guidelines before finalizing procurement.
Selection Notes
Select this component when designing systems requiring integrated current monitoring without external shunt resistors. It is suitable for applications needing smooth motion through high microstep resolutions. Consider the 2.5-A continuous output capability against your motor's rated current. Verify compatibility with standard digital logic levels for the STEP and DIR inputs.
Part Context
This part belongs to the DRV8434E series from Texas Instruments, designed for efficient motor control solutions. It integrates power stages and control logic into a single compact package. The series focuses on reducing bill-of-materials count by embedding current sensing capabilities directly within the driver IC architecture.
Replacement Considerations
The DRV8424PPWPR is a related variant within the same family but operates at a lower 35-V supply voltage. Verify that the 48-V rating of the DRV8434PPWPR is necessary for your application, as the DRV8424 may suffice for lower voltage systems. Both share similar packaging and interface characteristics.
