DRV8316CTRGFR

Overview

The DRV8316CTRGFR is a three-phase integrated FET motor driver designed for brushless DC (BLDC) applications. It features a fully integrated power stage with three half-bridges and an absolute maximum voltage rating of 40 V. The device delivers a peak output current of 8 A per phase with a combined high-side and low-side RDS(on) of 95 mΩ. It operates on a supply voltage range of 4.5 V to 35 V and supports PWM frequencies up to 200 kHz. The component is housed in a 40-VQFN package measuring 7x5 mm and functions within a temperature range of -40°C to 125°C.

Feature Summary

• Integrates three half-bridge drivers with ultra-low on-resistance for efficient power delivery
• Includes built-in adjustable buck regulator and LDO for external circuit power management
• Supports configurable PWM control schemes including sensorless field-oriented control, sinusoidal, and trapezoidal methods
• Provides comprehensive protection mechanisms such as overcurrent, overtemperature, and undervoltage lockout

Applications

• Brushless DC motor drives for 12V and 24V systems
• Industrial automation and motion control equipment
• Consumer appliances requiring efficient three-phase motor control
• General-purpose multi-phase motor driver implementations

Procurement Notes

Verify the specific suffix 'CTR' indicates pin-configurable control rather than SPI interface when sourcing. Confirm the package type matches the 40-VQFN (7x5 mm) footprint requirements for your PCB layout. Ensure the operating voltage range aligns with your system's power supply specifications to avoid undervoltage or overvoltage conditions during operation.

Selection Notes

Select this component for applications requiring a compact, single-chip solution for driving three-phase BLDC motors without external gate drivers. It is suitable for designs needing integrated power management features to reduce bill-of-materials count. Consider the pin-configurable nature for flexibility in control signal routing compared to fixed-interface alternatives.

Part Context

This part belongs to the DRV8316C family of three-phase motor drivers from Texas Instruments. It shares core power stage characteristics with other variants but differs in its configuration interface. While some family members use SPI for settings, this specific model utilizes pin configurations for parameters like PWM frequency and current limit thresholds.

Replacement Considerations

The automotive-grade variant DRV8316CRQRGFRQ1 offers similar electrical performance but includes extended reliability testing for automotive environments. Other family members like MCF8316DVRGFR provide sensorless FOC options with different control architectures.