Overview

EcoSpin Motor Controller ECS640A is a 3?phase BLDC

configurable motor control system in package that integrates an

ultra?low?power optimized Arm Cortex?M0+ microcontroller

(Nebo?40?64), three sense amplifiers and a reference amplifier

(NCS20034), three bootstrap diodes, and a high?voltage gate?driver

designed for high?voltage, high?speed operation, with the ability to

drive MOSFETs and IGBTs operating up to 600 V (FAN73896). Six

gate driver outputs provide sink/source of 350 mA/650 mA (typ) gate

current to external power devices. The device includes Hall Sensor

inputs to support either sensored or sensorless operation. Three

independent low?side source pins allow for single or multiple shunt

measurement.

Protection functions include under?voltage lockout and inverter

over?current trip with an automatic fault?clear function. An

open?drain fault signal is provided to indicate that a fault condition

has occurred.

Direct Torque & Flux Control (DTFC) firmware is available and

allows optimal motor performance on the Arm Cortex?M0+ platform.

The small footprint and integration make this device a perfect fit

with discrete power devices to maximize scalability across platforms

and to minimize area requirements as power levels scale.

Features

? Arm Cortex?M0+ (Nebo?40?64)

? 40 MHz Clock Frequency

? 8 kB RAM Memory

? 64 kB Flash Memory

? 600 V Gate Driver (FAN73896)

? 350 mA/650 mA Sourcing/Sinking Current Driving Capability

? 4 Sense Amps for Current Sensing (NCS20034)

? Integrated Bootstrap Diodes

? Communication: I2C, UART and SPI

? Firmware Available, Sensorless Direct Torque and Flux Control

? Max Power Dissipation: 1.8 W

? Temperature Range: ?40 to 105°C

? These are Pb?Free Devices

Typical Applications

? Three?Phase Brushless DC (BLDC) Sensorless Motor Control

? Three?Phase Brushless DC (BLDC) Sensor Based Motor Control