Overview
The DRV8424PWPR is a high-performance stepper motor driver from Texas Instruments, designed for industrial and consumer applications. This device integrates two N-channel power MOSFET H-bridge drivers, a microstepping indexer, and integrated current sensing, making it a comprehensive solution for driving bipolar stepper motors. The DRV8424PWPR supports a wide supply voltage range of 4.5 to 33 V and can handle high current outputs, making it suitable for a variety of motor control tasks.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Operating Supply Voltage | 4.5 to 33 | V |
| Peak Output Current | 4 A | A |
| Full-Scale Output Current | 2.5 A | A |
| RMS Output Current | 1.8 A | A |
| High-Side FET On Resistance (at 25°C) | 165 to 200 mΩ | mΩ |
| Low-Side FET On Resistance (at 25°C) | 165 to 200 mΩ | mΩ |
| Microstepping Capability | Full step to 1/256 microstepping | |
| Logic Input Voltage | 1.8 V, 3.3 V, 5.0 V | V |
| Package Type | HTSSOP (28) | |
| Body Size | 9.7mm x 4.4mm | mm |
Key Features
- PWM Microstepping: Supports up to 1/256 microstepping for precise motor control.
- Integrated Current Sense: Eliminates the need for external sense resistors, reducing PCB area and system cost.
- Smart Tune Decay Technology: Automatically adjusts for optimal current regulation, compensating for motor variation and aging effects, and reduces audible noise.
- Simple STEP/DIR Interface: Allows an external controller to manage the direction and step rate of the stepper motor.
- Low-Power Sleep Mode: Reduces power consumption when the device is not actively driving the motor.
- Protection Features: Includes undervoltage lockout, charge pump undervoltage, overcurrent protection, thermal shutdown, and fault condition output.
- Spread Spectrum Clocking: Reduces electromagnetic interference (EMI).
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
Q & A
- What is the operating supply voltage range of the DRV8424PWPR?
The operating supply voltage range is 4.5 to 33 V.
- What is the peak output current capability of the DRV8424PWPR?
The DRV8424PWPR can handle up to 4 A peak output current.
- What microstepping capabilities does the DRV8424PWPR support?
The device supports full step to 1/256 microstepping.
- Does the DRV8424PWPR require external sense resistors?
No, it integrates current sense functionality, eliminating the need for external sense resistors.
- What are the key protection features of the DRV8424PWPR?
The device includes undervoltage lockout, charge pump undervoltage, overcurrent protection, thermal shutdown, and fault condition output.
- How does the smart tune decay technology work?
Smart tune decay technology automatically adjusts for optimal current regulation, compensating for motor variation and aging effects, and reduces audible noise.
- What is the purpose of the STEP/DIR interface?
The STEP/DIR interface allows an external controller to manage the direction and step rate of the stepper motor.
- Does the DRV8424PWPR support low-power sleep mode?
- What are some common applications of the DRV8424PWPR?
- What package types are available for the DRV8424PWPR?
The device is available in HTSSOP (28) and VQFN (24) packages.
