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Dual Full Bridge PWM Motor Driver

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The DRV8412/22/32 are high performance, integrated dual full bridge motor drivers with an advanced protection system.

Because of the low RDS(on) of the H-Bridge MOSFETs and intelligent gate drive design, the efficiency these motor drivers can be up to 97%, which enables the use of smaller power supplies and heatsinks, and are good candidates for energy efficient applications. The DRV8412/22/32 require two power supplies, one at 12 V for GVDD and VDD, and another up to 50 for PVDD.

The DRV8412/22/32 can operate at up 500-kHz switching frequency while still maintain precise control and high efficiency. They 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.

APPLICATIONS
• Brushed DC and Stepper Motors
• Three Phase Permanent Magnet Synchronous Motors
• Robotic and Haptic Control System
• Actuators and Pumps
• Precision Instruments
• TEC Drivers

The DRV8412/22/32 have current-limiting circuit that prevents device shutdown during load transients such as motor start-up. programmable overcurrent detector allows adjustable current limit and protection level to meet different motor requirements. The DRV8412/22/32 have unique independent supply and ground pins for each half bridge, which makes possible to provide current measurement through external shunt resistor and support multiple motors with different power supply voltage requirements.

too late...

I wish such a driver would have been available about 5 years ago, when I started to work on my first real project, which involved building up a robotic arm controlled by joystick. At the time, I had to manage only with a Toshiba driver which was quite outdated even for that time. But it was the experience gained back then that makes me appreciate now such modern and highly integrated devices.

Regards,
Cristian

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