Texas Instruments DRV8434A/DRV8434A-Q1 Stepper Drivers
Texas Instruments DRV8434A/DRV8434A-Q1 Stepper Drivers are fully integrated with two N-channel power MOSFET H-bridge drivers, a micro-stepping indexer, and integrated current sensing. The DRV8434A/DRV8434A-Q1 can drive up to 2.5A full-scale output current (dependent on PCB thermal design). The DRV8434A/DRV8434A-Q1 Stepper Drivers with integrated current sense are designed for industrial and consumer applications. The Texas Instruments DRV8434A-Q1 devices are AEC-Q100 qualified for automotive applications.
Features
- PWM micro-stepping stepper motor driver
- Simple STEP/DIR interface
- Up to 1/256 micro-stepping indexer
- Integrated current sense functionality
- No sense resistors are required
- ±4% full-scale current accuracy
- Smart tune ripple control decay
- Stall detection using GPIO pins
- 4.5 to 48V operating supply voltage range
- 330mΩ HS + LS at 24V, 25°C Low RDS(ON)
- 2.5A full-scale, 1.8Arms high current capacity
- Supports 1.8V, 3.3V, 5.0V logic inputs
- Low-current sleep mode (2μA)
- Spread-spectrum clocking for low EMI
- Small package and footprint
- Protection features
- VM Undervoltage lockout (UVLO)
- Charge pump undervoltage (CPUV)
- Overcurrent protection (OCP)
- Sensorless stall detection
- Open load detection (OL)
- Thermal shutdown (OTSD)
- Fault condition output (nFAULT)
Applications
- Printers and scanners
- ATM and money-handling machines
- Textile machines
- Stage lighting equipment
- Office and home automation
- Factory automation and robotics
- Medical applications
- 3D Printers
Simplified Schematic
Related Development Tool
Texas Instruments DRV8434AEVM Evaluation Module
Evaluates the operation of the DRV8434A integrated motor-driver solution for bipolar stepper motors.
Published: 2020-12-28
| Updated: 2025-05-09