DRV8312DDWR

Full Half-Bridge (H Bridge) Drivers Overview

The DRV8312DDWR is a high-performance, integrated three-phase motor driver from Texas Instruments. It features low RDS(on) power MOSFETs and intelligent gate drive design, achieving efficiency up to 97%. The device operates with two power supplies: 12V for GVDD/VDD and up to 50V for PVDD. It supports PWM switching frequencies up to 500 kHz while maintaining precise control. Key electrical parameters include a continuous phase current of 3.5 A and a peak output current of 6.5 A. The typical on-resistance is 80 mΩ for both high-side and low-side MOSFETs at TJ = 40°C. The supply voltage range extends from 0 V to 52.5 V.

Full Half-Bridge (H Bridge) Drivers Feature Summary

• Intelligent gate drive design prevents cross-conduction without requiring external buffers or Schottky diodes.
• Integrated protection system includes short-circuit, over-current, under-voltage lockout, and two-stage thermal shutdown.
• Programmable per-cycle current limit allows adjustable protection levels to accommodate different motor requirements.
• Independent power and ground pins for each half-bridge support current sensing via external shunt resistors.

Full Half-Bridge (H Bridge) Drivers Applications

• Brushless DC (BLDC) motors
• Three-phase permanent magnet synchronous motors
• Inverter systems
• Robotics control systems

Full Half-Bridge (H Bridge) Drivers Procurement Notes

Verify the specific package suffix DDWR corresponds to the tape-and-reel configuration when ordering. Confirm that the 44-HTSSOP footprint matches the target PCB layout. Ensure the input voltage rails align with the specified 12V logic and 50V power supply requirements. Check RoHS compliance status if environmental regulations apply to the final assembly. Validate that the operating temperature range meets the application's thermal constraints.

Full Half-Bridge (H Bridge) Drivers Selection Notes

Select this component for applications requiring efficient three-phase motor control with integrated protection. The 3.5 A continuous current rating suits moderate-power BLDC and PMSM drives. Consider the 44-pin HTSSOP package for space-constrained designs needing multiple independent half-bridges. Evaluate the 500 kHz switching capability against electromagnetic interference requirements. Compare against the DRV8332 if higher current capacity or a different package style is necessary.

Full Half-Bridge (H Bridge) Drivers Part Context

The DRV8312 belongs to the DRV83x2 family of three-phase PWM motor drivers. It shares core architecture with the DRV8332 but differs in current ratings and package options. The DRV8312 specifically targets applications needing 3.5 A continuous current in a 44-pin HTSSOP package. This family emphasizes high efficiency and compact design through integrated low-loss MOSFETs.

Full Half-Bridge (H Bridge) Drivers Replacement Considerations

The DRV8312DDW is the tube-packaged equivalent of the DRV8312DDWR. Both share identical electrical characteristics and functionality. Verify packaging preferences for automated assembly versus manual handling. No functional substitutes are documented in the provided data.