Overview
The DRV8834PWP, produced by Texas Instruments, is a versatile dual H-bridge motor driver designed to drive either two DC motors or one bipolar stepper motor. This device is particularly suited for applications in toys, printers, cameras, and other mechatronic systems. It features two H-bridge drivers, each capable of delivering up to 1.5-A continuous current and 2.2-A peak current per bridge at 5 V and 25°C. The DRV8834PWP supports a wide power supply voltage range of 2.5 V to 10.8 V, making it adaptable to various power sources.
The device includes built-in indexer logic for simple STEP/DIRECTION control and supports up to 1/32-step microstepping. It also features PHASE/ENABLE control for more precise motor control. The DRV8834PWP is packaged in a 24-pin HTSSOP or VQFN package with PowerPAD™, ensuring efficient thermal management and compliance with RoHS and other environmental standards.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Power Supply Voltage | 2.5 to 10.8 | V |
| Continuous Output Current per H-Bridge | 1.5 | A |
| Peak Output Current per H-Bridge | 2.2 | A |
| On-Resistance (RDS(ON)) | 305 mΩ (HS + LS at VM = 5 V, 25°C) | mΩ |
| Microstepping Capability | Up to 1/32 steps | - |
| Package Type | 24-pin HTSSOP or VQFN with PowerPAD™ | - |
| Operating Temperature Range | -40 to 150°C | °C |
Key Features
- Dual H-bridge configuration capable of driving two DC motors or one bipolar stepper motor.
- Two control modes: built-in indexer logic with simple STEP/DIRECTION control and PHASE/ENABLE control for external references.
- Supports up to 1/32-step microstepping with dynamic tBLANK and mixed decay modes for smooth microstepping.
- PWM winding current regulation and limiting.
- Internal shutdown functions for overcurrent protection, short-circuit protection, undervoltage lockout, and overtemperature protection.
- Low-power sleep mode.
- Thermally enhanced surface-mount package with PowerPAD™ for efficient heat dissipation.
Applications
- Battery-powered toys
- POS printers
- Video security cameras
- Office automation machines
- Gaming machines
- Robotics
Q & A
- What is the DRV8834PWP used for?
The DRV8834PWP is a dual H-bridge motor driver used to drive two DC motors or one bipolar stepper motor, suitable for various mechatronic applications.
- What is the maximum continuous output current per H-bridge?
The maximum continuous output current per H-bridge is 1.5 A.
- What is the peak output current capability per H-bridge?
The peak output current capability per H-bridge is 2.2 A.
- What are the control modes available for the DRV8834PWP?
The device supports two control modes: built-in indexer logic with simple STEP/DIRECTION control and PHASE/ENABLE control.
- What is the microstepping capability of the DRV8834PWP?
The DRV8834PWP supports up to 1/32-step microstepping.
- What are the package options for the DRV8834PWP?
The device is available in 24-pin HTSSOP or VQFN packages with PowerPAD™.
- What are the protection features of the DRV8834PWP?
The device includes internal shutdown functions for overcurrent protection, short-circuit protection, undervoltage lockout, and overtemperature protection.
- Does the DRV8834PWP have a sleep mode?
Yes, the device has a low-power sleep mode.
- What is the operating temperature range of the DRV8834PWP?
The operating temperature range is -40 to 150°C.
- Is the DRV8834PWP environmentally friendly?
Yes, the device is RoHS compliant and free of Sb/Br.
