Overview
The DRV8824PWPR is a fully integrated stepper motor driver IC manufactured by Texas Instruments. It is designed to drive bipolar stepper motors and offers a comprehensive set of features for precise motor control. The device integrates two N-channel power MOSFETs configured as full H-bridges to drive the motor windings, along with a built-in microstepping indexer and current regulation circuitry. This integration allows for high-accuracy microstepping without the need for external control of current levels. The DRV8824PWPR operates over a supply voltage range of 8.2 to 45 V and can provide an output current up to 1.6 A per phase with proper heatsinking.
Key Specifications
| Parameter | Value |
|---|---|
| Supply Voltage Range | 8.2 V to 45 V |
| Maximum Drive Current | 1.6 A at 24 V and 25°C |
| Operating Temperature Range | -40°C to 150°C (TJ) |
| Microstepping Capability | Up to 1/32 microstepping |
| Decay Modes | Mixed, Slow, Fast |
| Package Type | HTSSOP (28), VQFN (28) |
| Package Size | HTSSOP: 9.70 mm × 6.40 mm, VQFN: 5.00 mm × 5.00 mm |
| Internal PWM Frequency | 50 kHz |
| Protection Features | Overcurrent Protection (OCP), Thermal Shutdown (TSD), VMx Undervoltage Lockout (UVLO), Fault Condition Indication Pin (nFAULT) |
Key Features
- PWM Microstepping Stepper Motor Driver with built-in microstepping indexer up to 1/32 microstepping.
- Multiple decay modes: Mixed, Slow, and Fast decay.
- Simple STEP/DIR interface for easy interfacing to controller circuits.
- Low-current sleep mode to minimize quiescent current draw.
- Built-in 3.3-V reference output.
- Small package and footprint options (HTSSOP and VQFN).
- Protection features including Overcurrent Protection (OCP), Thermal Shutdown (TSD), VMx Undervoltage Lockout (UVLO), and Fault Condition Indication Pin (nFAULT).
Applications
- Automatic Teller Machines
- Money Handling Machines
- Video Security Cameras
- Printers
- Scanners
- Office Automation Machines
- Gaming Machines
- Factory Automation
- Robotics
Q & A
- What is the DRV8824PWPR used for?
The DRV8824PWPR is used as a fully integrated stepper motor driver IC for driving bipolar stepper motors.
- What is the supply voltage range of the DRV8824PWPR?
The supply voltage range is from 8.2 V to 45 V.
- What is the maximum drive current of the DRV8824PWPR?
The maximum drive current is 1.6 A at 24 V and 25°C.
- What microstepping capabilities does the DRV8824PWPR offer?
The DRV8824PWPR offers up to 1/32 microstepping.
- What decay modes are available on the DRV8824PWPR?
The available decay modes are Mixed, Slow, and Fast decay.
- What protection features does the DRV8824PWPR include?
The protection features include Overcurrent Protection (OCP), Thermal Shutdown (TSD), VMx Undervoltage Lockout (UVLO), and Fault Condition Indication Pin (nFAULT).
- How does the DRV8824PWPR interface with controller circuits?
The DRV8824PWPR uses a simple STEP/DIR interface for easy interfacing to controller circuits.
- What is the purpose of the low-current sleep mode in the DRV8824PWPR?
The low-current sleep mode minimizes quiescent current draw when the device is not in use.
- What package options are available for the DRV8824PWPR?
The package options include HTSSOP (28) and VQFN (28).
- What are some common applications of the DRV8824PWPR?
Common applications include printers, scanners, office automation machines, gaming machines, factory automation, and robotics.
