Overview
The DRV8412DDWEVM is an evaluation module from Texas Instruments, designed to showcase the capabilities of the DRV8412 dual full-bridge PWM motor driver. This module is part of the DRV841x2 family, which are high-performance, integrated motor drivers equipped with an advanced protection system. The DRV8412 is optimized for driving brushed DC and stepper motors, as well as three-phase permanent magnet synchronous motors, and is suitable for various applications requiring high efficiency and robust protection mechanisms.
Key Specifications
| Parameter | Value |
|---|---|
| Operating Supply Voltage | Up to 50 V (Absolute Maximum: 70 V) |
| Continuous Output Current (Dual Full-Bridge Mode) | 2 x 3 A (DRV8412), 2 x 6 A Peak |
| Continuous Output Current (Parallel Mode) | 6 A (DRV8412), 12 A Peak |
| PWM Operating Frequency | Up to 500 kHz |
| RDS(on) of MOSFETs | 110 mΩ at TJ = 25°C |
| Package Type | 44-Pin HTSSOP (DDW) |
| Operating Temperature Range | -40°C to 85°C |
Key Features
- High-efficiency power stage (up to 97%) with low RDS(on) MOSFETs
- Integrated self-protection circuits including undervoltage, overtemperature, overload, and short-circuit protection
- Programmable cycle-by-cycle current limit protection
- Independent supply and ground pins for each half bridge
- Intelligent gate drive and cross conduction prevention
- No external snubber or Schottky diode required
- Support for multiple motor configurations, including dual full-bridge and parallel modes
Applications
- Brushed DC and stepper motors
- Three-phase permanent magnet synchronous motors
- Robotic and haptic control systems
- Actuators and pumps
- Precision instruments
- TEC drivers
Q & A
- What is the maximum operating supply voltage for the DRV8412?
The maximum operating supply voltage for the DRV8412 is up to 50 V, with an absolute maximum of 70 V.
- What are the continuous and peak output currents for the DRV8412 in dual full-bridge mode?
The DRV8412 can deliver up to 2 x 3 A continuous output current and 2 x 6 A peak current in dual full-bridge mode.
- What is the PWM operating frequency range of the DRV8412?
The DRV8412 can operate at PWM frequencies up to 500 kHz.
- What types of protection mechanisms are integrated into the DRV8412?
The DRV8412 includes integrated self-protection circuits for undervoltage, overtemperature, overload, and short-circuit protection.
- Does the DRV8412 require external snubber or Schottky diodes?
No, the DRV8412 does not require external snubber or Schottky diodes.
- What are the independent supply and ground pins used for in the DRV8412?
The independent supply and ground pins for each half bridge allow for current measurement through external shunt resistors and support multiple motors with different power supply voltage requirements.
- Can the DRV8412 be used in parallel mode?
- What is the operating temperature range of the DRV8412?
- What package type is the DRV8412 available in?
- What are some common applications of the DRV8412?
