Application circuit of brushless DC motor pre-driver TC78B027FTG for fan drive

The board is designed to a doughnut shape according to the fan form. MOSFETs for the motor drive, brushless DC motor pre-driver IC TC78B027FTG, and the microcontroller for control are mounted on the board. This reference design provides circuit diagram, BOM, etc.

Block Diagram

特性

  • The board is designed to a doughnut shape according to the fan form.
  • MOSFETs for the motor drive, brushless DC motor pre-driver IC TC78B027FTG, and the microcontroller for control are mounted on a board.
  • Compact board size (Diameter 40mm, 4 layer board)

說明

  • 6 MOSFETs are used for fan motor drive.
  • Brushless DC motor pre-driver IC TC78B027FTG is used for fan motor control.
  • Microcontroller TMPM373FWDUG is used for PWM generation and motor rotation control.
  • Hall device is mounted on the bottom side of the board.

設計文件

供設計人員使用的材料，例如電路操作概述和設計注意事項的解釋。請點擊每個選項以查看內容。

使用東芝項目/產品

器件型號 器件目錄 使用部位・數量 說明
Small Low ON resistance MOSFETs 6 N-ch MOSFET, 30 V, 15 A, 0.0089 Ω@10V, SOT-1220(UDFN6B)
Brushless motor driver IC 1 3-phase brushless motor pre-driver
TX03 1 80MHz Cortex-M3, 128KB Flash, 6KB RAM, LQFP48, 5V

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