DRV8332

• High-Efficiency Power Stage (up to 97%) With Low R_DS(on)
  MOSFETs (80 mΩ at T_J = 25°C)
• Operating Supply Voltage up to 50 V
  (70-A Absolute Maximum)
• DRV8312 (Power Pad Down): up to 3.5-A Continuous
  Phase Current (6.5-A Peak)
• DRV8332 (Power Pad Up): up to 8-A Continuous Phase
  Current (13-A Peak)
• Independent Control of Three Phases
• 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
• APPLICATIONS
  • BLDC Motors
  • Three-Phase Permanent Magnet Synchronous Motors
  • Inverters
  • Half Bridge Drivers
  • Robotic Control Systems

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The DRV83x2 are high-performance, integrated three-phase motor drivers with an advanced protection system.

Because of the low R_DS(on) of the power MOSFETs and intelligent gate drive design, the efficiency of these motor drivers can be up to 97%. This high efficiency the use of smaller power supplies and heatsinks, and the devices are good candidates for energy-efficient applications.

The DRV83x2 require two power supplies, one at 12 V for GVDD and VDD, and another up to 50 V for PVDD. The DRV83x2 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 DRV83x2 have 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 DRV83x2 have 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 half bridge drivers with different power supply voltage requirements.