Microchip's ATA6844-DK demonstrates the features of the ATA6843/44 system basis chip BLDC gate driver. The motor position feedback operates with Back-Electromotive-Force (Back-EMF) and the motor control microcontroller is ATmega32M1. For monitoring and evaluating purposes, it uses a USB interface on board.

The main difference between the Microchip ATA6843 and Microchip ATA6844 is their respective temperature range. The maximum junction temperature of 200°C allows “under-the-hood” design solutions with the Microchip ATA6844, while the maximum junction temperature for the Microchip ATA6843 is 150°C. If not otherwise stated, all references to the Microchip ATA6844 apply equally to both devices.

BLDC Motor Control Kit Includes

• 1 BLDC motor application board Microchip® ATA6844-DK
• 1 Microchip controller board ATA6844-DK3 with Microchip BLDC microcontroller ATmega32M1 and Microchip USB microcontroller ATmega32U2
• 1 brushless DC motor ref: FL42BLS01-001 (3 phases, 8 poles, 12 VDC)
• “Getting Started” application note