DRV8312 Datasheet | Texas Instruments

Features - High-Efficiency Power Stage (up to 97%) With Low RDS(on) MOSFETs (80 mΩ at TJ = 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 k Hz - 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 2 Applications - BLDC Motors - Three-Phase Permanent Magnet Synchronous Motors - Inverters - Half Bridge Drivers - Robotic Control Systems GVDD Controller GVDD GVDD_B OTW FAULT PWM_A RESET_A PWM_B OC_ADJ GND AGND VREG M3 M2 M1 PWM_C RESET_C RESET_B VDD GVDD_C GVDD_A BST_A PVDD_A OUT_A GND_A GND_B OUT_B PVDD_B BST_B NC NC GND GND GND_C OUT_C PVDD_C BST_C GVDD_C PVDD M Simplified Application Diagram 3 Description The DRV83x2 are high-performance, integrated threephase motor drivers with an advanced protection system. Because of the low RDS(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 500k Hz 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 shortcircuit protection, overcurrent protection, undervoltage protection, and...