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