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The information presented in this cross reference is based on TOSHIBA's selection criteria and should be treated as a suggestion only. Please carefully review the latest versions of all relevant information on the TOSHIBA products, including without limitation data sheets and validate all operating parameters of the TOSHIBA products to ensure that the suggested TOSHIBA products are truly compatible with your design and application.
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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.
Description
- 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.
Features
- 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)
Reference design files
Design, Document
“Design・Document” contains the documents listed below.
Toshiba items
| Part Number | Device Category | Quantity | Description |
|---|---|---|---|
MOSFET |
6 |
Low drain-source ON-resistance: RDS(ON) = 8.0 mΩ (typ.) (@VGS = 4.5 V) RDS(ON) = 6.5 mΩ (typ.) (@VGS = 10 V) |
|
Brushless DC motor pre-driver IC |
1 |
"Intelligent Phase Control" realizes an automatically optimized high-efficiency drive in a wide range of rotational speeds. Closed loop control function regulates motor rotational speed fluctuations caused by changes in power supply voltage and load, without an external MCU. Various external FETs can be used since FET gate current can be set in the internal non-volatile memory (NVM). |
|
| TMPM373FWDUG | Microcontroller | 1 | TX03 Series 32-bit RISC Microcontroller On Chip program memory and data memory |