Voltar a Microchip Technology

Microchip Technology EV43F54A Development Tool

Microchip Technology EV43F54A Development Tool is fully assembled and tested to evaluate and demonstrate the ATA6847 motor driver's capabilities. The ATA6847T-5033H/NHX used with dsPIC33CK64MP205 provides the necessary drive signals to drive a 3-phase BLDC motor. This board is perfect for input voltages from 4.9V to 32.5V and the firmware pre-programmed on the microcontroller is optimized to work with AC300022 24V, 3-phase BLDC in sensorless field oriented control. The EV43F54A board features two programmable gain/offset current sense amplifiers, a spare user-programmable push button (µC/Wk), PWM signal LED indicators, and a fault signal LED indicator. The ATA6847 board provides 3.3V/5V/100mA LDOs, a 3.3V buck regulator, a USB serial connection, three current-sensing operational amplifiers, a Back EMF detector, and inputs for Hall-effect sensors.

The EV43F54A development tool is a two-layered, high-current board designed to be very versatile, low-cost, and easily configurable. This board uses the ATA6847 QFN40 as a 3-phase Brushless DC (BLDC) motor gate driver and the dsPIC33CK64MP205T digital signal microcontroller. The EV43F54A development tool is equipped with a Start/Stop button and a potentiometer that is used to adjust the speed of the motor.

Features

  • 4.9V to 32.5V input operating voltage range
  • Maximum of 10/27Ω of gate drive sink/source resistance for external N-channel
  • MOSFETs and programmable LS/HS slew rate control:
    • 12.5%, 25%, 50%, and 100%
  • Drives up to a 35A RMS BLDC motor
  • Two programmable gain/offset current sense amplifiers
  • ON/OFF push button (RUN)
  • Reset push button (RST)
  • Spare user-programmable push button (µC/Wk)
  • PWM signal LED indicators
  • Thermal shutdown protection
  • Programmable timing filters for current and voltages
  • Fault signal LED indicator
  • Wake-up push button
  • PICkit debugger interface
  • Speed control potentiometer
  • Terminal block for 3.3V and 5V hall-effect sensors
  • UVLO, OVLO, and DUVLO protections
  • Programmable external MOSFET short circuit protection 125mV to 1.75V
  • Programmable PWM dead-time protection 100ns to 6.3µs (100ns step)
Publicado: 2025-02-27 | Atualizado: 2025-04-02