DRV8351DIMPWTSEP

Overview

The DRV8351DIMPWTSEP is a three-phase smart gate driver from Texas Instruments, designed for brushless DC motor control applications. It features an integrated buck regulator and three low-side shunt amplifiers with selectable gains of 5 V/V, 10 V/V, 15 V/V, and 40 V/V. The device supports PWM modes including 6x, 3x, 1x, and independent configurations. It operates within a voltage range of 9 V to 100 V and includes protection features such as UVLO, OCP, and thermal shutdown.

Feature Summary

• Integrates a buck regulator and three shunt amplifiers for simplified system design
• Smart gate drive architecture reduces external component count and optimizes dead time
• Supports multiple PWM control modes for flexible interface with external controllers
• Includes comprehensive protection mechanisms against overcurrent, short circuits, and thermal events

Applications

• Three-phase BLDC motor drives
• Fans, blowers, and pumps
• Electric bicycles and scooters
• Power tools and garden equipment
• Drones and robotics

Procurement Notes

Verify the exact suffix SEP indicates specific packaging or quality certification requirements. Confirm pin compatibility and thermal performance for your PCB layout. Ensure the integrated buck regulator output matches your gate drive power needs. Check for any specific handling instructions related to the package type. Validate that the shunt amplifier gains align with your current sensing strategy.

Selection Notes

Choose this device when integrating a buck converter and current sensing into a single component is required. It is suitable for applications needing adjustable slew rate control for EMI reduction. Select if you require support for various PWM modes including 1x for simple trapezoidal control. Consider the integrated protection features for robust motor drive designs.

Part Context

The DRV8351 is part of the DRV835x family of three-phase smart gate drivers. This family offers configurable options for integrated regulators and amplifiers. The DIMPWTP package provides a compact solution for high-density designs. The SEP suffix typically denotes a specific tape and reel configuration or quality level.

Replacement Considerations

Check for other members of the DRV835x family with different integration levels. Verify if DRV8353 or DRV8355 variants meet your specific gain or regulator requirements. Ensure pin-to-pin compatibility before substitution. Review updated datasheets for any changes in electrical characteristics.