# Electronic Speed Controller ## Description The electronic speed controller (ESC) is an essential part of an electric propulsion system’s hardware. It acts like the brain of the system by telling the motor how fast to go based on data signals it receives from the throttle controller. For smaller applications like drones and RC vehicles, this controller has the name ‘ESC’, whereas for larger manufacturing applications it may be called an electronic control unit, inverter, or motor controller. #drone #motorController #PCA9685 #controller #motor #esc #referenceDesign #project #EFM8BB21F16G #MPU9250 #template ## Project Details - **Owner:** vasy_skral - **Created:** 5/7/2025 - **Last Updated:** 3/16/2026 - **Visibility:** Public - **License:** https://creativecommons.org/licenses/by/4.0/ - **Stars:** 1 - **Copies:** 1 ## Key Components ### Q1 — [TPN2R703NL](https://www.flux.ai/vasy_skral/tpn2r703nl.md) - Manufacturer Part Number: TPN2R703NL - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: MOSFET - Manufacturer Name: Toshiba - Datasheet URL: https://toshiba.semicon-storage.com/info/TPN2R703NL_datasheet_en_20191030.pdf?did=14267&prodName=TPN2R703NL **Pins:** - D [pin 7] - D [pin 6] - D [pin 9] - D [pin 5] - D [pin 8] - G [pin 4] - S [pin 2] - S [pin 3] - S [pin 1] ### Q2 — [TPN2R703NL](https://www.flux.ai/vasy_skral/tpn2r703nl.md) - Manufacturer Part Number: TPN2R703NL - Datasheet URL: https://toshiba.semicon-storage.com/info/TPN2R703NL_datasheet_en_20191030.pdf?did=14267&prodName=TPN2R703NL - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: MOSFET - Manufacturer Name: Toshiba **Pins:** - D [pin 7] - D [pin 6] - D [pin 9] - D [pin 5] - D [pin 8] - G [pin 4] - S [pin 2] - S [pin 3] - S [pin 1] ### Q3 — [TPN2R703NL](https://www.flux.ai/vasy_skral/tpn2r703nl.md) - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: MOSFET - Manufacturer Name: Toshiba - Datasheet URL: https://toshiba.semicon-storage.com/info/TPN2R703NL_datasheet_en_20191030.pdf?did=14267&prodName=TPN2R703NL - Manufacturer Part Number: TPN2R703NL **Pins:** - D [pin 7] - D [pin 6] - D [pin 9] - D [pin 5] - D [pin 8] - G [pin 4] - S [pin 2] - S [pin 3] - S [pin 1] ### Q4 — [TPN2R703NL](https://www.flux.ai/vasy_skral/tpn2r703nl.md) - Manufacturer Part Number: TPN2R703NL - Datasheet URL: https://toshiba.semicon-storage.com/info/TPN2R703NL_datasheet_en_20191030.pdf?did=14267&prodName=TPN2R703NL - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: MOSFET - Manufacturer Name: Toshiba **Pins:** - D [pin 7] - D [pin 6] - D [pin 9] - D [pin 5] - D [pin 8] - G [pin 4] - S [pin 2] - S [pin 3] - S [pin 1] ### Q5 — [TPN2R703NL](https://www.flux.ai/vasy_skral/tpn2r703nl.md) - Datasheet URL: https://toshiba.semicon-storage.com/info/TPN2R703NL_datasheet_en_20191030.pdf?did=14267&prodName=TPN2R703NL - Manufacturer Name: Toshiba - Part Type: MOSFET - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: TPN2R703NL **Pins:** - D [pin 7] - D [pin 6] - D [pin 9] - D [pin 5] - D [pin 8] - G [pin 4] - S [pin 2] - S [pin 3] - S [pin 1] ### Q6 — [TPN2R703NL](https://www.flux.ai/vasy_skral/tpn2r703nl.md) - Manufacturer Part Number: TPN2R703NL - Manufacturer Name: Toshiba - Part Type: MOSFET - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://toshiba.semicon-storage.com/info/TPN2R703NL_datasheet_en_20191030.pdf?did=14267&prodName=TPN2R703NL **Pins:** - D [pin 7] - D [pin 6] - D [pin 9] - D [pin 5] - D [pin 8] - G [pin 4] - S [pin 2] - S [pin 3] - S [pin 1] ### U1 — [L78L12ABUTR](https://www.flux.ai/vasy_skral/l78l12abutr.md) - Manufacturer Part Number: L78L12ABUTR - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Integrated Circuit - Manufacturer Name: STMicroelectronics - Datasheet URL: https://www.st.com/resource/en/datasheet/l78l.pdf **Pins:** - GND [pin 2] - GND [pin .] - VI [pin 3] - VO [pin 1] ### U2 — [MP1907AGQ-P](https://www.flux.ai/vasy_skral/mp1907agq-p.md) - Manufacturer Part Number: MP1907AGQ-P - Product Image Url: https://www.monolithicpower.com/pub/media/catalog/product/t/a/tac_mp1907a.jpg - Datasheet URL: https://www.monolithicpower.com/en/documentview/productdocument/index/version/2/document_type/Datasheet/lang/en/sku/MP1907AGQ - Package or Case Code: QFN-10_MP1907A_MNP - Manufacturer Name: Monolithic Power Systems - Product Info Url: https://www.monolithicpower.com/en/catalog/product/view/id/3864?utm_source=ultralibrarian&utm_medium=component_search&utm_campaign=listing - Symbol Style: Parametric **Pins:** - BST [pin 3] - DRVH [pin 4] - DRVL [pin 10] - EN [pin 6] - EPAD [pin 11] - INH [pin 7] - INL [pin 8] - NC [pin 2] - SW [pin 5] - VDD [pin 1] - VSS [pin 9] ### U3 — EFM8BB21F16G-C-QFN20R - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: EFM8BB21F16G-C-QFN20R - Symbol Style: Parametric - Datasheet URL: https://www.silabs.com/documents/public/data-sheets/efm8bb2-datasheet.pdf - Manufacturer Name: Silicon Labs - Part Type: Microcontroller **Pins:** - GND [pin 12] - GND [pin 3] - GND [pin 21] - P0.0 [pin 2] - P0.1 [pin 1] - P0.2 [pin 20] - P0.3 [pin 19] - P0.4 [pin 18] - P0.5 [pin 17] - P0.6 [pin 16] - P0.7 [pin 15] - P1.0 [pin 14] - P1.1 [pin 13] - P1.2 [pin 11] - P1.3 [pin 10] - P1.4 [pin 9] - P1.5 [pin 8] - P1.6 [pin 7] - P2.0/C2D [pin 6] - RSTb/C2CK [pin 5] - VDD [pin 4] ### U4 — [MP1907AGQ-P](https://www.flux.ai/vasy_skral/mp1907agq-p.md) - Manufacturer Part Number: MP1907AGQ-P - Product Image Url: https://www.monolithicpower.com/pub/media/catalog/product/t/a/tac_mp1907a.jpg - Package or Case Code: QFN-10_MP1907A_MNP - Datasheet URL: https://www.monolithicpower.com/en/documentview/productdocument/index/version/2/document_type/Datasheet/lang/en/sku/MP1907AGQ - Manufacturer Name: Monolithic Power Systems - Product Info Url: https://www.monolithicpower.com/en/catalog/product/view/id/3864?utm_source=ultralibrarian&utm_medium=component_search&utm_campaign=listing - Symbol Style: Parametric **Pins:** - BST [pin 3] - DRVH [pin 4] - DRVL [pin 10] - EN [pin 6] - EPAD [pin 11] - INH [pin 7] - INL [pin 8] - NC [pin 2] - SW [pin 5] - VDD [pin 1] - VSS [pin 9] ### U5 — [MP1907AGQ-P](https://www.flux.ai/vasy_skral/mp1907agq-p.md) - Manufacturer Name: Monolithic Power Systems - Manufacturer Part Number: MP1907AGQ-P - Datasheet URL: https://www.monolithicpower.com/en/documentview/productdocument/index/version/2/document_type/Datasheet/lang/en/sku/MP1907AGQ - Product Image Url: https://www.monolithicpower.com/pub/media/catalog/product/t/a/tac_mp1907a.jpg - Package or Case Code: QFN-10_MP1907A_MNP - Symbol Style: Parametric - Product Info Url: https://www.monolithicpower.com/en/catalog/product/view/id/3864?utm_source=ultralibrarian&utm_medium=component_search&utm_campaign=listing **Pins:** - BST [pin 3] - DRVH [pin 4] - DRVL [pin 10] - EN [pin 6] - EPAD [pin 11] - INH [pin 7] - INL [pin 8] - NC [pin 2] - SW [pin 5] - VDD [pin 1] - VSS [pin 9] ### U6 — MCP1755T-3302E/OT - Symbol Style: Parametric - Datasheet URL: https://ww1.microchip.com/downloads/en/DeviceDoc/MCP1755-MCP1755S-Data-Sheet-DS20005160B.pdf - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: MCP1755T-3302E/OT - Part Type: Integrated Circuit - Manufacturer Name: Microchip **Pins:** - EN [pin 3] - GND [pin 2] - PWRGD [pin 4] - VIN [pin 1] - VOUT [pin 5] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/vasy_skral/electronic-speed-controller](https://www.flux.ai/vasy_skral/electronic-speed-controller).* --- *Generated from [https://www.flux.ai/vasy_skral/electronic-speed-controller](https://www.flux.ai/vasy_skral/electronic-speed-controller)*