Overview
The DRV8834RGET from Texas Instruments is a versatile and powerful motor driver IC designed to drive either two DC motors or one bipolar stepper motor. This dual-H-bridge current-control motor driver is particularly suited for applications in toys, printers, cameras, and other mechatronic devices. It features built-in indexer logic for simple STEP/DIRECTION control and supports up to 1/32-step microstepping. The device also includes PHASE/ENABLE control, allowing for external references to achieve microstepping beyond 1/32 steps. With its wide power supply voltage range of 2.5 V to 10.8 V and low RDS(ON) of 305 mΩ, the DRV8834RGET offers efficient and reliable motor control.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Output Current (Continuous) | 1.5 A | A |
| Output Current (Peak) | 2.2 A | A |
| Power Supply Voltage Range | 2.5 V to 10.8 V | V |
| RDS(ON) (HS + LS) | 305 mΩ | mΩ |
| Microstepping Capability | Up to 1/32 steps | - |
| Package Type | 24-pin HTSSOP or VQFN | - |
| Operating Temperature Range | -40°C to 85°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™ (Eco-friendly: RoHS & no Sb/Br).
Applications
- Battery-powered toys
- POS printers
- Video security cameras
- Office automation machines
- Gaming machines
- Robotics
Q & A
- What is the maximum continuous output current of the DRV8834RGET?
The maximum continuous output current is 1.5 A per H-bridge.
- What is the peak output current capability of the DRV8834RGET?
The device can support peak currents of up to 2.2 A per H-bridge.
- What is the power supply voltage range for the DRV8834RGET?
The power supply voltage range is from 2.5 V to 10.8 V.
- What microstepping capabilities does the DRV8834RGET offer?
The device supports up to 1/32-step microstepping.
- What protection features are included in the DRV8834RGET?
The device includes overcurrent protection, short-circuit protection, undervoltage lockout, and overtemperature protection.
- What package types are available for the DRV8834RGET?
The device is available in 24-pin HTSSOP or VQFN packages.
- What is the operating temperature range of the DRV8834RGET?
The operating temperature range is from -40°C to 85°C.
- Does the DRV8834RGET have a low-power sleep mode?
Yes, the device includes a low-power sleep mode.
- What are some common applications for the DRV8834RGET?
Common applications include battery-powered toys, POS printers, video security cameras, office automation machines, gaming machines, and robotics.
- Is the DRV8834RGET eco-friendly?
Yes, the device is packaged in an eco-friendly manner, being RoHS compliant and free of Sb/Br.
