Overview
The DRV8432DKDR from Texas Instruments is a high-performance, integrated dual full-bridge motor driver designed for driving brushed DC (BDC) motors and bipolar stepper motors. This device features advanced protection mechanisms and high efficiency, making it suitable for a variety of applications requiring precise motor control.
Key Specifications
| Parameter | Value |
|---|---|
| Control Interface | Hardware (GPIO) |
| Operating Temperature Range (°C) | -40 to 85 |
| Package Group | HSSOP-36 |
| Package Size (mm²): W x L | 14.2 x 15.9 |
| Rating | Catalog |
| Features | Current Regulation |
| Control Mode | Independent 1/2-Bridge PWM |
| RDS(ON) (HS + LS) (mΩ) | 220 |
| Peak Output Current (A) | 6 |
| Vs ABS(Max) (V) | 70 |
| Vs(Min) (V) | 10.8 |
| Number of Full Bridges | 2 |
Key Features
- High efficiency up to 97% due to low RDS(ON) of the H-Bridge MOSFETs and intelligent gate drive design.
- Advanced protection system including short-circuit protection, overcurrent protection, undervoltage protection, and two-stage thermal protection.
- Programmable overcurrent detector for adjustable current limit and protection level.
- Independent supply and ground pins for each half-bridge, enabling current measurement through external shunt resistors and supporting multiple motors with different power supply voltage requirements.
- Operates at up to 500-kHz switching frequency.
Applications
The DRV8432DKDR is suitable for various applications requiring high-performance motor control, including:
- Brushed DC (BDC) motors.
- Bipolar stepper motors.
- Industrial automation.
- Medical devices.
- Aerospace and defense systems.
- Energy-efficient systems where high motor control precision and reliability are critical.
Q & A
- What is the DRV8432DKDR used for? The DRV8432DKDR is used for driving brushed DC (BDC) motors and bipolar stepper motors.
- What is the operating temperature range of the DRV8432DKDR? The operating temperature range is -40°C to 85°C.
- What is the package type of the DRV8432DKDR? The package type is HSSOP-36.
- What is the maximum output current of the DRV8432DKDR? The peak output current is 6 A.
- What protection mechanisms does the DRV8432DKDR have? It includes short-circuit protection, overcurrent protection, undervoltage protection, and two-stage thermal protection.
- Can the DRV8432DKDR operate at high switching frequencies? Yes, it can operate at up to 500-kHz switching frequency.
- How efficient is the DRV8432DKDR? The DRV8432DKDR has an efficiency of up to 97%.
- What are the independent supply and ground pins used for? These pins enable current measurement through external shunt resistors and support multiple motors with different power supply voltage requirements.
- Is the DRV8432DKDR suitable for energy-efficient applications? Yes, it is a good candidate for energy-efficient applications due to its high efficiency.
- What types of motors can the DRV8432DKDR drive? It can drive brushed DC (BDC) motors and bipolar stepper motors.
