2 Introduction

The MCT8329 is a 4.5-V to 60-V, three-phase BLDC gate driver IC with code-free sensorless Trapezoidal control for motor drive applications. The MCT8329 provides three half-bridge gate drivers, each capable of driving highside and low-side N-channel power MOSFETs. The device generates the correct gate drive voltages using in internal charge pump and enhances the high-side MOSFETs using a bootstrap circuit. A trickle charge pump is included to support 100% duty cycle. The Gate Drive architecture supports peak gate drive currents up to 1-A source and 2-A sink. The MCT8329 can operate from a single power supply and supports a wide input supply range of 4.5 to 60 V. The I2C interface variant (MCT8329A1I) also provides a standard I2C interface for configuring the various device settings and reading fault diagnostic information through an external controller.

The MCT8329EVM includes an onboard FTDI chip to convert USB communication from the micro-USB connector into UART and an onboard MSP430FR2355 MCU to interface with the MCT8329. The MCT8329EVM can also provide SPI communication for the SPI variant of the MCT8329 device. There are many user-selectable jumpers, resistors, connectors, and test points to evaluate many features of the device and configure device-specific settings.

This document serves as a startup guide to supplement the MCT8329EVM. The user's guide is intended for engineers to design, implement, and validate reference hardware for the MCT8329 device.