52-V, 6-A dual H-bridge motor driver
Product details
Parameters
Package | Pins | Size
Features
- High-Efficiency Power Stage (up to 97%) With Low RDS(on) MOSFETs (110 mΩ at TJ = 25°C)
- Operating Supply Voltage up to 52 V
- DRV8412 (Power Pad Down): up to 2 × 3-A Continuous Output Current (2 × 6-A Peak) in Dual Full-Bridge Mode or 6-A Continuous Current in Parallel Mode (12-A Peak)
- DRV8432 (Power Pad Up): up to 2 × 7-A Continuous Output Current (2 × 12-A Peak) in Dual Full-Bridge Mode or 14-A Continuous Current in Parallel Mode (24-A Peak)
- PWM Operating Frequency up to 500 kHz
- Integrated Self-Protection Circuits Including Undervoltage, Overtemperature, Overload, and Short Circuit
- 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 is Required
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Description
The DRV841x2 are high-performance, integrated dual full-bridge motor driver with an advanced protection system.
Because of the low RDS(on) of the H-Bridge MOSFETs and intelligent gate drive design, the efficiency of these motor drivers can be up to 97%. This high efficiency enables the use of smaller power supplies and heatsinks, and the devices are good candidates for energy-efficient applications.
The DRV841x2 requires two power supplies, one at 12 V for GVDD and VDD, and another up to 50 V for PVDD. The DRV841x2 can operate at up to 500-kHz switching frequency while still maintaining precise control and high efficiency. The devices also have an innovative protection system safeguarding the device against a wide range of fault conditions that could damage the system. These safeguards are short-circuit protection, overcurrent protection, undervoltage protection, and two-stage thermal protection. The DRV841x2 has a current-limiting circuit that prevents device shutdown during load transients such as motor start-up. A programmable overcurrent detector allows adjustable current limit and protection level to meet different motor requirements.
The DRV841x2 has unique independent supply and ground pins for each half-bridge. These pins make it possible to provide current measurement through external shunt resistor and support multiple motors with different power supply voltage requirements.
Technical documentation
Type | Title | Date | |
---|---|---|---|
* | Datasheet | DRV84x2 Dual Full-Bridge PWM Motor Driver datasheet (Rev. G) | Jul. 07, 2014 |
Application note | Methods to Configure Current Regulation for Brushed and Stepper Motors (Rev. B) | Jan. 19, 2021 | |
Application note | Best Practices for Board Layout of Motor Drivers (Rev. A) | Jan. 22, 2019 | |
Application note | PowerPAD™ Thermally Enhanced Package (Rev. H) | Jul. 06, 2018 | |
Technical article | Why are you still driving automotive motors with relays? | Jul. 13, 2017 | |
Technical article | The story of motor-drive integration | Jan. 09, 2017 | |
Technical article | How to create a dynamic power solution for stepper motors, relays and LEDs | Nov. 01, 2016 | |
Technical article | How to avoid motor and system overvoltage using AVS technology without external components | Oct. 14, 2016 | |
More literature | TM4C123x Stepper Motor Control Product Summary | Jul. 06, 2015 | |
User guide | DRV8412EVM User's Guide | Jan. 29, 2010 | |
Application note | PowerPAD™ Made Easy (Rev. B) | May 12, 2004 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
The DRV8412 is a dual full bridge PWM motor driver. It has a maximum recommended supply voltage of 52V and is capable of delivering 2x3A RMS output current and 2x6A peak current per device. The DRV8412 has an advanced protection system consisting of short-circuit protection, overcurrent protection (...)
Features
- 2 x 6A Peak / 2 x 3A RMS Current Output
- 1 x 12A Peak / 1 x 6A RMS Current Output
- Wide Operating Voltage: 0 to 52V (+12V Gate Drive)
- PWM Control Interface
- 2-stage Thermal and Short Circuit Protection
- On-board Header / Test Points for External Control of the DRV8412
CAD/CAE symbols
Package | Pins | Download |
---|---|---|
HTSSOP (DDW) | 44 | View options |
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