# Dominant Plum Speeder Bike ## Description 3.3V ESP32-S3 Dual 6V Rail MOSFET Board with MCP23017 I2C Expanders, Option C Gate Network, SW2 DPST Rail-Interlock, 2S LiFePO4 Charger/BMS (BQ24618 + BQ29209) with Series Battery Wiring and Charge Integration, and 2×10 RA Headers (#MCP23017_3V3 #OptionC #GateNetwork #RailInterlock #Dual6V #BQ24618 #BQ29209 #2S #LiFePO4 #SeriesBattery #ChargeIntegration #RAHeaders) ## Project Details - **Owner:** mikep6345 - **Created:** 2/1/2026 - **Last Updated:** 2/5/2026 - **Visibility:** Public - **Rail Configuration:** Dual 6 V MOSFET-switched rails (2×16 channels) - **Operating Voltage:** 6V - **Connectivity:** WiFi - **Protection Scheme:** Dual TPS259824 eFuses with inrush control and protected power path - **License:** http://solderpad.org/licenses/SHL-2.1/ - **Software:** Arduino - **Part Type:** Power Management - **System Architecture:** flowchart TD subgraph ChargerBMS["2S LiFePO4 Charger and Protection"] BQ24618["BQ24618RGET Charger IC"] -->|STAT| LED["Charge LED Indicator"] LED -->|Resistor| R_LED["Current-limiting resistor"] BQ24618 -->|BAT| PACKP["PACK+ net"] PACKP --> PowerRails BQ29209["BQ29209DRBT 2S Protector/Balancer"] BQ29209 -->|VC1| CELLMID["CELL_MID net"] BQ29209 -->|VC2| PACKP BQ29209 -->|VSS| GND end J1["12V Barrel Jack VIN"] -->|VIN| BQ24618 BAT1["Battery Cell 1"] -->|P| CELLMID BAT2["Battery Cell 2"] -->|N| CELLMID BAT1 -->|N| GND BAT2 -->|P| PACKP subgraph PowerRails["Power Distribution"] PVIN3V3["IC1 PVIN (3.3V Buck)"] --> IC1["TPS62162 3.3V Buck"] --> LogicRail["3.3V Logic Rail"] PACKP -->|PVIN| U5["TPS54821 #1 @6V Buck"] --> EFuseA["TPS259824 eFuse #1"] --> SW2["SW2 DPST Interlock"] --> HeadersA PACKP -->|PVIN| U6["TPS54821 #2 @6V Buck"] --> EFuseB["TPS259824 eFuse #2"] --> SW2 --> HeadersB LogicRail --> U1["ESP32-S3 @3.3V"] --> U2["MCP23017 Expanders @3.3V"] --> GateNetwork --> MOSFETs end - **Domain:** Consumer Electronics - **Reference Design URL:** https://www.ti.com/product/TPS54821 - **Manufacturing Quantity Target:** 10 - **Power Requirements:** Battery - **Microcontroller:** ESP32-S3 - **Charging Input:** 12 V ≥3 A barrel jack - **Energy Storage:** On-board LiFePO4 pack with charger/BMS and bulk capacitance - **I2C Expansion:** 2× MCP23017 I/O expanders - **Human Interface:** Switches - **Power Source Chemistry:** LiFePO4 2S ## Key Components ### BAT1 — [26650](https://www.flux.ai/jecstronic/26650~s1q.md) - Manufacturer Name: Keystone Electronics - Datasheet URL: https://www.keyelco.com/product-pdf.cfm?p=14076 - Manufacturer Part Number: 1106 - Part Type: Connector **Pins:** - NEGATIVE [pin N] - POSITIVE [pin P] ### BAT2 — [26650](https://www.flux.ai/jecstronic/26650~s1q.md) - Manufacturer Name: Keystone Electronics - Manufacturer Part Number: 1106 - Part Type: Connector - Datasheet URL: https://www.keyelco.com/product-pdf.cfm?p=14076 **Pins:** - NEGATIVE [pin N] - POSITIVE [pin P] ### IC1 — [TPS62162QDSGRQ1](https://www.flux.ai/adrian95/tps62162qdsgrq1~y7t.md) - Role: Power Conversion - Part Type: Power Management - Package or Case Code: SON50P200X200X80-9N - Manufacturer Part Number: TPS62162QDSGRQ1 - Role Details: 3.3 V regulator for ESP32-S3 - Datasheet URL: http://www.ti.com/lit/gpn/tps62162-q1 - Manufacturer Name: Texas Instruments - License: https://creativecommons.org/licenses/by/4.0/ **Pins:** - AGND [pin 4] - EN [pin 3] - EP [pin 9] - FB [pin 5] - PG [pin 8] - PGND [pin 1] - SW [pin 7] - VIN [pin 2] - VOS [pin 6] ### J1 — [PJ-011A](https://www.flux.ai/jecstronic/pj-011a~w4v.md) - Datasheet URL: https://www.cuidevices.com/product/resource/pj-011a.pdf - Part Type: Connector - Role: Connector - Manufacturer Part Number: PJ-011A - Role Details: 12 V ≥3 A panel-mount barrel jack input - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: CUI Devices **Pins:** - ~ [pin 2] - ~ [pin 1] - ~ [pin 3] ### J2 — [67997-120HLF](https://www.flux.ai/adrian95/67997-120hlf~zbc.md) - Manufacturer Part Number: 67997-120HLF - Part Type: Connector - Role: Connector - Connector Pitch: 2.54mm - Role Details: 2×10 right-angle male header for rail connectivity - Connector Rows: 2 - Connector Positions: 20 - Connector Type: Headers and Wire Housings - Connector Gender: Male - License: https://creativecommons.org/licenses/by/4.0/ - Package or Case Code: AMPHENOL_67997-120HLF - Datasheet URL: https://www.waldom.com/upload/parts/datasheets/mf-fci/fci-67997-120hlf.pdf **Pins:** - 01 [pin 01] - 02 [pin 02] - 03 [pin 03] - 04 [pin 04] - 05 [pin 05] - 06 [pin 06] - 07 [pin 07] - 08 [pin 08] - 09 [pin 09] - 10 [pin 10] - 11 [pin 11] - 12 [pin 12] - 13 [pin 13] - 14 [pin 14] - 15 [pin 15] - 16 [pin 16] - 17 [pin 17] - 18 [pin 18] - 19 [pin 19] - 20 [pin 20] ### J3 — [67997-120HLF](https://www.flux.ai/adrian95/67997-120hlf~zbc.md) - Connector Pitch: 2.54mm - Role Details: 2×10 right-angle male header for rail connectivity - Part Type: Connector - Manufacturer Part Number: 67997-120HLF - Connector Rows: 2 - Connector Positions: 20 - Package or Case Code: AMPHENOL_67997-120HLF - Datasheet URL: https://www.waldom.com/upload/parts/datasheets/mf-fci/fci-67997-120hlf.pdf - Connector Type: Headers and Wire Housings - License: https://creativecommons.org/licenses/by/4.0/ - Connector Gender: Male - Role: Connector **Pins:** - 01 [pin 01] - 02 [pin 02] - 03 [pin 03] - 04 [pin 04] - 05 [pin 05] - 06 [pin 06] - 07 [pin 07] - 08 [pin 08] - 09 [pin 09] - 10 [pin 10] - 11 [pin 11] - 12 [pin 12] - 13 [pin 13] - 14 [pin 14] - 15 [pin 15] - 16 [pin 16] - 17 [pin 17] - 18 [pin 18] - 19 [pin 19] - 20 [pin 20] ### LED1 — [SML-LX0603GW-TR](https://www.flux.ai/adrian95/sml-lx0603gw-tr~uqi.md) - Manufacturer Part Number: SML-LX0603GW-TR - Role Details: Charge status indicator for BQ24618 STAT pin - Package: SMD_0603_1608Metric - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: LED - Role: LED - Datasheet URL: https://www.lumex.com/spec/SML-LX0603GW-TR.pdf - Manufacturer Name: Lumex Opto/Components Inc. **Pins:** - A [pin 2] - K [pin 1] ### Q1 — [N-Channel 15A MOSFET](https://www.flux.ai/corynrobinson/n-channel-15a-mosfet~0h.md) - Manufacturer Name: Taiwan Semiconductor - Manufacturer Part Number: TSM900N10CP ROG - Package or Case Code: TO-252 - Role Details: Low-side MOSFET placeholder controlled by MCP23017 expander output - Role: Switching - Product Info Url: https://www.digikey.com/en/products/detail/taiwan-semiconductor-corporation/TSM900N10CP-ROG/7360606 - Part Type: MOSFETs - Datasheet URL: https://services.taiwansemi.com/storage/resources/datasheet/TSM900N10_A15.pdf **Pins:** - D [pin 2] - G [pin 1] - S [pin 3] ### Q10 — [N-Channel 15A MOSFET](https://www.flux.ai/corynrobinson/n-channel-15a-mosfet~0h.md) - Product Info Url: https://www.digikey.com/en/products/detail/taiwan-semiconductor-corporation/TSM900N10CP-ROG/7360606 - Datasheet URL: https://services.taiwansemi.com/storage/resources/datasheet/TSM900N10_A15.pdf - Role: Switching - Part Type: MOSFETs - Role Details: Low-side MOSFET placeholder controlled by MCP23017 expander output - Package or Case Code: TO-252 - Manufacturer Name: Taiwan Semiconductor - Manufacturer Part Number: TSM900N10CP ROG **Pins:** - D [pin 2] - G [pin 1] - S [pin 3] ### Q11 — [N-Channel 15A MOSFET](https://www.flux.ai/corynrobinson/n-channel-15a-mosfet~0h.md) - Role Details: Low-side MOSFET placeholder controlled by MCP23017 expander output - Product Info Url: https://www.digikey.com/en/products/detail/taiwan-semiconductor-corporation/TSM900N10CP-ROG/7360606 - Datasheet URL: https://services.taiwansemi.com/storage/resources/datasheet/TSM900N10_A15.pdf - Part Type: MOSFETs - Package or Case Code: TO-252 - Manufacturer Name: Taiwan Semiconductor - Manufacturer Part Number: TSM900N10CP ROG - Role: Switching **Pins:** - D [pin 2] - G [pin 1] - S [pin 3] ### Q12 — [N-Channel 15A MOSFET](https://www.flux.ai/corynrobinson/n-channel-15a-mosfet~0h.md) - Datasheet URL: https://services.taiwansemi.com/storage/resources/datasheet/TSM900N10_A15.pdf - Part Type: MOSFETs - Product Info Url: https://www.digikey.com/en/products/detail/taiwan-semiconductor-corporation/TSM900N10CP-ROG/7360606 - Role: Switching - Package or Case Code: TO-252 - Manufacturer Part Number: TSM900N10CP ROG - Role Details: Low-side MOSFET placeholder controlled by MCP23017 expander output - Manufacturer Name: Taiwan Semiconductor **Pins:** - D [pin 2] - G [pin 1] - S [pin 3] ### Q13 — [N-Channel 15A MOSFET](https://www.flux.ai/corynrobinson/n-channel-15a-mosfet~0h.md) - Manufacturer Name: Taiwan Semiconductor - Manufacturer Part Number: TSM900N10CP ROG - Role Details: Low-side MOSFET placeholder controlled by MCP23017 expander output - Package or Case Code: TO-252 - Product Info Url: https://www.digikey.com/en/products/detail/taiwan-semiconductor-corporation/TSM900N10CP-ROG/7360606 - Role: Switching - Part Type: MOSFETs - Datasheet URL: https://services.taiwansemi.com/storage/resources/datasheet/TSM900N10_A15.pdf **Pins:** - D [pin 2] - G [pin 1] - S [pin 3] ### Q14 — [N-Channel 15A MOSFET](https://www.flux.ai/corynrobinson/n-channel-15a-mosfet~0h.md) - Product Info Url: https://www.digikey.com/en/products/detail/taiwan-semiconductor-corporation/TSM900N10CP-ROG/7360606 - Role Details: Low-side MOSFET placeholder controlled by MCP23017 expander output - Part Type: MOSFETs - Datasheet URL: https://services.taiwansemi.com/storage/resources/datasheet/TSM900N10_A15.pdf - Role: Switching - Manufacturer Name: Taiwan Semiconductor - Manufacturer Part Number: TSM900N10CP ROG - Package or Case Code: TO-252 **Pins:** - D [pin 2] - G [pin 1] - S [pin 3] ### Q15 — [N-Channel 15A MOSFET](https://www.flux.ai/corynrobinson/n-channel-15a-mosfet~0h.md) - Manufacturer Name: Taiwan Semiconductor - Role Details: Low-side MOSFET placeholder controlled by MCP23017 expander output - Manufacturer Part Number: TSM900N10CP ROG - Package or Case Code: TO-252 - Role: Switching - Product Info Url: https://www.digikey.com/en/products/detail/taiwan-semiconductor-corporation/TSM900N10CP-ROG/7360606 - Part Type: MOSFETs - Datasheet URL: https://services.taiwansemi.com/storage/resources/datasheet/TSM900N10_A15.pdf **Pins:** - D [pin 2] - G [pin 1] - S [pin 3] ### Q16 — [N-Channel 15A MOSFET](https://www.flux.ai/corynrobinson/n-channel-15a-mosfet~0h.md) - Part Type: MOSFETs - Datasheet URL: https://services.taiwansemi.com/storage/resources/datasheet/TSM900N10_A15.pdf - Role: Switching - Product Info Url: https://www.digikey.com/en/products/detail/taiwan-semiconductor-corporation/TSM900N10CP-ROG/7360606 - Role Details: Low-side MOSFET placeholder controlled by MCP23017 expander output - Manufacturer Part Number: TSM900N10CP ROG - Manufacturer Name: Taiwan Semiconductor - Package or Case Code: TO-252 **Pins:** - D [pin 2] - G [pin 1] - S [pin 3] ### Q17 — [N-Channel 15A MOSFET](https://www.flux.ai/corynrobinson/n-channel-15a-mosfet~0h.md) - Datasheet URL: https://services.taiwansemi.com/storage/resources/datasheet/TSM900N10_A15.pdf - Part Type: MOSFETs - Role Details: Low-side MOSFET placeholder controlled by MCP23017 expander output - Product Info Url: https://www.digikey.com/en/products/detail/taiwan-semiconductor-corporation/TSM900N10CP-ROG/7360606 - Role: Switching - Package or Case Code: TO-252 - Manufacturer Part Number: TSM900N10CP ROG - Manufacturer Name: Taiwan Semiconductor **Pins:** - D [pin 2] - G [pin 1] - S [pin 3] ### Q18 — [N-Channel 15A MOSFET](https://www.flux.ai/corynrobinson/n-channel-15a-mosfet~0h.md) - Manufacturer Part Number: TSM900N10CP ROG - Role: Switching - Manufacturer Name: Taiwan Semiconductor - Package or Case Code: TO-252 - Role Details: Low-side MOSFET placeholder controlled by MCP23017 expander output - Product Info Url: https://www.digikey.com/en/products/detail/taiwan-semiconductor-corporation/TSM900N10CP-ROG/7360606 - Part Type: MOSFETs - Datasheet URL: https://services.taiwansemi.com/storage/resources/datasheet/TSM900N10_A15.pdf **Pins:** - D [pin 2] - G [pin 1] - S [pin 3] ### Q19 — [N-Channel 15A MOSFET](https://www.flux.ai/corynrobinson/n-channel-15a-mosfet~0h.md) - Datasheet URL: https://services.taiwansemi.com/storage/resources/datasheet/TSM900N10_A15.pdf - Part Type: MOSFETs - Product Info Url: https://www.digikey.com/en/products/detail/taiwan-semiconductor-corporation/TSM900N10CP-ROG/7360606 - Role: Switching - Role Details: Low-side MOSFET placeholder controlled by MCP23017 expander output - Package or Case Code: TO-252 - Manufacturer Part Number: TSM900N10CP ROG - Manufacturer Name: Taiwan Semiconductor **Pins:** - D [pin 2] - G [pin 1] - S [pin 3] ### Q2 — [N-Channel 15A MOSFET](https://www.flux.ai/corynrobinson/n-channel-15a-mosfet~0h.md) - Product Info Url: https://www.digikey.com/en/products/detail/taiwan-semiconductor-corporation/TSM900N10CP-ROG/7360606 - Part Type: MOSFETs - Datasheet URL: https://services.taiwansemi.com/storage/resources/datasheet/TSM900N10_A15.pdf - Role: Switching - Manufacturer Part Number: TSM900N10CP ROG - Manufacturer Name: Taiwan Semiconductor - Package or Case Code: TO-252 - Role Details: Low-side MOSFET placeholder controlled by MCP23017 expander output **Pins:** - D [pin 2] - G [pin 1] - S [pin 3] ### Q20 — [N-Channel 15A MOSFET](https://www.flux.ai/corynrobinson/n-channel-15a-mosfet~0h.md) - Datasheet URL: https://services.taiwansemi.com/storage/resources/datasheet/TSM900N10_A15.pdf - Role Details: Low-side MOSFET placeholder controlled by MCP23017 expander output - Part Type: MOSFETs - Role: Switching - Product Info Url: https://www.digikey.com/en/products/detail/taiwan-semiconductor-corporation/TSM900N10CP-ROG/7360606 - Package or Case Code: TO-252 - Manufacturer Part Number: TSM900N10CP ROG - Manufacturer Name: Taiwan Semiconductor **Pins:** - D [pin 2] - G [pin 1] - S [pin 3] ### Q21 — [N-Channel 15A MOSFET](https://www.flux.ai/corynrobinson/n-channel-15a-mosfet~0h.md) - Package or Case Code: TO-252 - Manufacturer Part Number: TSM900N10CP ROG - Manufacturer Name: Taiwan Semiconductor - Role: Switching - Product Info Url: https://www.digikey.com/en/products/detail/taiwan-semiconductor-corporation/TSM900N10CP-ROG/7360606 - Role Details: Low-side MOSFET placeholder controlled by MCP23017 expander output - Datasheet URL: https://services.taiwansemi.com/storage/resources/datasheet/TSM900N10_A15.pdf - Part Type: MOSFETs **Pins:** - D [pin 2] - G [pin 1] - S [pin 3] ### Q22 — [N-Channel 15A MOSFET](https://www.flux.ai/corynrobinson/n-channel-15a-mosfet~0h.md) - Role: Switching - Manufacturer Part Number: TSM900N10CP ROG - Manufacturer Name: Taiwan Semiconductor - Role Details: Low-side MOSFET placeholder controlled by MCP23017 expander output - Package or Case Code: TO-252 - Part Type: MOSFETs - Datasheet URL: https://services.taiwansemi.com/storage/resources/datasheet/TSM900N10_A15.pdf - Product Info Url: https://www.digikey.com/en/products/detail/taiwan-semiconductor-corporation/TSM900N10CP-ROG/7360606 **Pins:** - D [pin 2] - G [pin 1] - S [pin 3] ### Q23 — [N-Channel 15A MOSFET](https://www.flux.ai/corynrobinson/n-channel-15a-mosfet~0h.md) - Package or Case Code: TO-252 - Manufacturer Name: Taiwan Semiconductor - Manufacturer Part Number: TSM900N10CP ROG - Datasheet URL: https://services.taiwansemi.com/storage/resources/datasheet/TSM900N10_A15.pdf - Role Details: Low-side MOSFET placeholder controlled by MCP23017 expander output - Part Type: MOSFETs - Role: Switching - Product Info Url: https://www.digikey.com/en/products/detail/taiwan-semiconductor-corporation/TSM900N10CP-ROG/7360606 **Pins:** - D [pin 2] - G [pin 1] - S [pin 3] ### Q24 — [N-Channel 15A MOSFET](https://www.flux.ai/corynrobinson/n-channel-15a-mosfet~0h.md) - Product Info Url: https://www.digikey.com/en/products/detail/taiwan-semiconductor-corporation/TSM900N10CP-ROG/7360606 - Datasheet URL: https://services.taiwansemi.com/storage/resources/datasheet/TSM900N10_A15.pdf - Part Type: MOSFETs - Role: Switching - Package or Case Code: TO-252 - Manufacturer Name: Taiwan Semiconductor - Manufacturer Part Number: TSM900N10CP ROG - Role Details: Low-side MOSFET placeholder controlled by MCP23017 expander output **Pins:** - D [pin 2] - G [pin 1] - S [pin 3] ### Q25 — [N-Channel 15A MOSFET](https://www.flux.ai/corynrobinson/n-channel-15a-mosfet~0h.md) - Package or Case Code: TO-252 - Manufacturer Part Number: TSM900N10CP ROG - Manufacturer Name: Taiwan Semiconductor - Role Details: Low-side MOSFET placeholder controlled by MCP23017 expander output - Role: Switching - Product Info Url: https://www.digikey.com/en/products/detail/taiwan-semiconductor-corporation/TSM900N10CP-ROG/7360606 - Datasheet URL: https://services.taiwansemi.com/storage/resources/datasheet/TSM900N10_A15.pdf - Part Type: MOSFETs **Pins:** - D [pin 2] - G [pin 1] - S [pin 3] ### Q26 — [N-Channel 15A MOSFET](https://www.flux.ai/corynrobinson/n-channel-15a-mosfet~0h.md) - Role Details: Low-side MOSFET placeholder controlled by MCP23017 expander output - Package or Case Code: TO-252 - Role: Switching - Manufacturer Name: Taiwan Semiconductor - Manufacturer Part Number: TSM900N10CP ROG - Datasheet URL: https://services.taiwansemi.com/storage/resources/datasheet/TSM900N10_A15.pdf - Part Type: MOSFETs - Product Info Url: https://www.digikey.com/en/products/detail/taiwan-semiconductor-corporation/TSM900N10CP-ROG/7360606 **Pins:** - D [pin 2] - G [pin 1] - S [pin 3] ### Q27 — [N-Channel 15A MOSFET](https://www.flux.ai/corynrobinson/n-channel-15a-mosfet~0h.md) - Role: Switching - Package or Case Code: TO-252 - Manufacturer Part Number: TSM900N10CP ROG - Manufacturer Name: Taiwan Semiconductor - Datasheet URL: https://services.taiwansemi.com/storage/resources/datasheet/TSM900N10_A15.pdf - Part Type: MOSFETs - Role Details: Low-side MOSFET placeholder controlled by MCP23017 expander output - Product Info Url: https://www.digikey.com/en/products/detail/taiwan-semiconductor-corporation/TSM900N10CP-ROG/7360606 **Pins:** - D [pin 2] - G [pin 1] - S [pin 3] ### Q28 — [N-Channel 15A MOSFET](https://www.flux.ai/corynrobinson/n-channel-15a-mosfet~0h.md) - Product Info Url: https://www.digikey.com/en/products/detail/taiwan-semiconductor-corporation/TSM900N10CP-ROG/7360606 - Part Type: MOSFETs - Datasheet URL: https://services.taiwansemi.com/storage/resources/datasheet/TSM900N10_A15.pdf - Manufacturer Name: Taiwan Semiconductor - Role Details: Low-side MOSFET placeholder controlled by MCP23017 expander output - Manufacturer Part Number: TSM900N10CP ROG - Package or Case Code: TO-252 - Role: Switching **Pins:** - D [pin 2] - G [pin 1] - S [pin 3] ### Q29 — [N-Channel 15A MOSFET](https://www.flux.ai/corynrobinson/n-channel-15a-mosfet~0h.md) - Role Details: Low-side MOSFET placeholder controlled by MCP23017 expander output - Manufacturer Name: Taiwan Semiconductor - Manufacturer Part Number: TSM900N10CP ROG - Package or Case Code: TO-252 - Role: Switching - Part Type: MOSFETs - Datasheet URL: https://services.taiwansemi.com/storage/resources/datasheet/TSM900N10_A15.pdf - Product Info Url: https://www.digikey.com/en/products/detail/taiwan-semiconductor-corporation/TSM900N10CP-ROG/7360606 **Pins:** - D [pin 2] - G [pin 1] - S [pin 3] ### Q3 — [N-Channel 15A MOSFET](https://www.flux.ai/corynrobinson/n-channel-15a-mosfet~0h.md) - Role Details: Low-side MOSFET placeholder controlled by MCP23017 expander output - Role: Switching - Product Info Url: https://www.digikey.com/en/products/detail/taiwan-semiconductor-corporation/TSM900N10CP-ROG/7360606 - Datasheet URL: https://services.taiwansemi.com/storage/resources/datasheet/TSM900N10_A15.pdf - Part Type: MOSFETs - Package or Case Code: TO-252 - Manufacturer Name: Taiwan Semiconductor - Manufacturer Part Number: TSM900N10CP ROG **Pins:** - D [pin 2] - G [pin 1] - S [pin 3] ### Q30 — [N-Channel 15A MOSFET](https://www.flux.ai/corynrobinson/n-channel-15a-mosfet~0h.md) - Manufacturer Part Number: TSM900N10CP ROG - Manufacturer Name: Taiwan Semiconductor - Role Details: Low-side MOSFET placeholder controlled by MCP23017 expander output - Package or Case Code: TO-252 - Product Info Url: https://www.digikey.com/en/products/detail/taiwan-semiconductor-corporation/TSM900N10CP-ROG/7360606 - Role: Switching - Part Type: MOSFETs - Datasheet URL: https://services.taiwansemi.com/storage/resources/datasheet/TSM900N10_A15.pdf **Pins:** - D [pin 2] - G [pin 1] - S [pin 3] ### Q31 — [N-Channel 15A MOSFET](https://www.flux.ai/corynrobinson/n-channel-15a-mosfet~0h.md) - Package or Case Code: TO-252 - Manufacturer Part Number: TSM900N10CP ROG - Role Details: Low-side MOSFET placeholder controlled by MCP23017 expander output - Manufacturer Name: Taiwan Semiconductor - Role: Switching - Product Info Url: https://www.digikey.com/en/products/detail/taiwan-semiconductor-corporation/TSM900N10CP-ROG/7360606 - Datasheet URL: https://services.taiwansemi.com/storage/resources/datasheet/TSM900N10_A15.pdf - Part Type: MOSFETs **Pins:** - D [pin 2] - G [pin 1] - S [pin 3] ### Q32 — [N-Channel 15A MOSFET](https://www.flux.ai/corynrobinson/n-channel-15a-mosfet~0h.md) - Product Info Url: https://www.digikey.com/en/products/detail/taiwan-semiconductor-corporation/TSM900N10CP-ROG/7360606 - Part Type: MOSFETs - Role Details: Low-side MOSFET placeholder controlled by MCP23017 expander output - Role: Switching - Datasheet URL: https://services.taiwansemi.com/storage/resources/datasheet/TSM900N10_A15.pdf - Manufacturer Name: Taiwan Semiconductor - Manufacturer Part Number: TSM900N10CP ROG - Package or Case Code: TO-252 **Pins:** - D [pin 2] - G [pin 1] - S [pin 3] ### Q4 — [N-Channel 15A MOSFET](https://www.flux.ai/corynrobinson/n-channel-15a-mosfet~0h.md) - Datasheet URL: https://services.taiwansemi.com/storage/resources/datasheet/TSM900N10_A15.pdf - Part Type: MOSFETs - Product Info Url: https://www.digikey.com/en/products/detail/taiwan-semiconductor-corporation/TSM900N10CP-ROG/7360606 - Role Details: Low-side MOSFET placeholder controlled by MCP23017 expander output - Package or Case Code: TO-252 - Manufacturer Part Number: TSM900N10CP ROG - Manufacturer Name: Taiwan Semiconductor - Role: Switching **Pins:** - D [pin 2] - G [pin 1] - S [pin 3] ### Q5 — [N-Channel 15A MOSFET](https://www.flux.ai/corynrobinson/n-channel-15a-mosfet~0h.md) - Package or Case Code: TO-252 - Manufacturer Name: Taiwan Semiconductor - Manufacturer Part Number: TSM900N10CP ROG - Role: Switching - Datasheet URL: https://services.taiwansemi.com/storage/resources/datasheet/TSM900N10_A15.pdf - Part Type: MOSFETs - Role Details: Low-side MOSFET placeholder controlled by MCP23017 expander output - Product Info Url: https://www.digikey.com/en/products/detail/taiwan-semiconductor-corporation/TSM900N10CP-ROG/7360606 **Pins:** - D [pin 2] - G [pin 1] - S [pin 3] ### Q6 — [N-Channel 15A MOSFET](https://www.flux.ai/corynrobinson/n-channel-15a-mosfet~0h.md) - Role: Switching - Package or Case Code: TO-252 - Manufacturer Part Number: TSM900N10CP ROG - Manufacturer Name: Taiwan Semiconductor - Datasheet URL: https://services.taiwansemi.com/storage/resources/datasheet/TSM900N10_A15.pdf - Part Type: MOSFETs - Product Info Url: https://www.digikey.com/en/products/detail/taiwan-semiconductor-corporation/TSM900N10CP-ROG/7360606 - Role Details: Low-side MOSFET placeholder controlled by MCP23017 expander output **Pins:** - D [pin 2] - G [pin 1] - S [pin 3] ### Q7 — [N-Channel 15A MOSFET](https://www.flux.ai/corynrobinson/n-channel-15a-mosfet~0h.md) - Datasheet URL: https://services.taiwansemi.com/storage/resources/datasheet/TSM900N10_A15.pdf - Part Type: MOSFETs - Role Details: Low-side MOSFET placeholder controlled by MCP23017 expander output - Product Info Url: https://www.digikey.com/en/products/detail/taiwan-semiconductor-corporation/TSM900N10CP-ROG/7360606 - Role: Switching - Package or Case Code: TO-252 - Manufacturer Name: Taiwan Semiconductor - Manufacturer Part Number: TSM900N10CP ROG **Pins:** - D [pin 2] - G [pin 1] - S [pin 3] ### Q8 — [N-Channel 15A MOSFET](https://www.flux.ai/corynrobinson/n-channel-15a-mosfet~0h.md) - Package or Case Code: TO-252 - Role Details: Low-side MOSFET placeholder controlled by MCP23017 expander output - Manufacturer Name: Taiwan Semiconductor - Manufacturer Part Number: TSM900N10CP ROG - Role: Switching - Product Info Url: https://www.digikey.com/en/products/detail/taiwan-semiconductor-corporation/TSM900N10CP-ROG/7360606 - Datasheet URL: https://services.taiwansemi.com/storage/resources/datasheet/TSM900N10_A15.pdf - Part Type: MOSFETs **Pins:** - D [pin 2] - G [pin 1] - S [pin 3] ### Q9 — [N-Channel 15A MOSFET](https://www.flux.ai/corynrobinson/n-channel-15a-mosfet~0h.md) - Manufacturer Name: Taiwan Semiconductor - Manufacturer Part Number: TSM900N10CP ROG - Package or Case Code: TO-252 - Role: Switching - Part Type: MOSFETs - Datasheet URL: https://services.taiwansemi.com/storage/resources/datasheet/TSM900N10_A15.pdf - Role Details: Low-side MOSFET placeholder controlled by MCP23017 expander output - Product Info Url: https://www.digikey.com/en/products/detail/taiwan-semiconductor-corporation/TSM900N10CP-ROG/7360606 **Pins:** - D [pin 2] - G [pin 1] - S [pin 3] ### SW1 — [R1966ABLKBLKEF](https://www.flux.ai/adrian95/r1966ablkblkef~tpg.md) - Package: Panel_Mount_Rocker - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://sten-eswitch-13110800-production.s3.amazonaws.com/system/asset/product_line/data_sheet/74/R1966.pdf - Part Type: Switch - Role Details: ESP32-S3 power control - Manufacturer Part Number: R1966ABLKBLKEF - Manufacturer Name: E-Switch - Role: Switch **Pins:** - 1 [pin 1] - 2 [pin 2] ### SW2 — [PB400EEQR1BLK](https://www.flux.ai/adrian95/pb400eeqr1blk~g94.md) - Manufacturer Name: E-Switch - Datasheet URL: https://configured-product-images.s3.amazonaws.com/Datasheets/PB400.pdf - Digi-Key Part Number: EG5547-ND - Package or Case Code: PB400EEQR1BLK_EWI - Manufacturer Part Number: PB400EEQR1BLK - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Switch **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] ### U1 — [ESP32-S3-WROOM-1-N16R8](https://www.flux.ai/adrian95/esp32-s3-wroom-1-n16r8~fs1.md) - Part Type: Module - Manufacturer Part Number: ESP32-S3-WROOM-1-N16R8 - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://www.mouser.com/datasheet/2/891/esp32_s3_wroom_1_wroom_1u_datasheet_en-2930317.pdf - Role: Microcontroller - Manufacturer Name: Espressif Systems - Role Details: Main MCU and WiFi/Bluetooth controller **Pins:** - 3V3 [pin 2] - EN [pin 3] - GND_1 [pin 1] - GND_10 [pin 48] - GND_11 [pin 49] - GND_2 [pin 40] - GND_3 [pin 41] - GND_4 [pin 42] - GND_5 [pin 43] - GND_6 [pin 44] - GND_7 [pin 45] - GND_8 [pin 46] - GND_9 [pin 47] - IO0 [pin 27] - IO1 [pin 39] - IO10 [pin 18] - IO11 [pin 19] - IO12 [pin 20] - IO13 [pin 21] - IO14 [pin 22] - IO15 [pin 8] - IO16 [pin 9] - IO17 [pin 10] - IO18 [pin 11] - IO19 [pin 13] - IO2 [pin 38] - IO20 [pin 14] - IO21 [pin 23] - IO3 [pin 15] - IO35 [pin 28] - IO36 [pin 29] - IO37 [pin 30] - IO38 [pin 31] - IO39 [pin 32] - IO4 [pin 4] - IO40 [pin 33] - IO41 [pin 34] - IO42 [pin 35] - IO45 [pin 26] - IO46 [pin 16] - IO47 [pin 24] - IO48 [pin 25] - IO5 [pin 5] - IO6 [pin 6] - IO7 [pin 7] - IO8 [pin 12] - IO9 [pin 17] - RXD0 [pin 36] - TXD0 [pin 37] ### U10 — [BQ24618RGET](https://www.flux.ai/lcsc/bq24618rget~5ksr.md) - Manufacturer Name: TI(德州仪器) - Role Details: 2S LiFePO4 charger IC - Package or Case Code: VQFN-24_L4.0-W4.0-P0.50-TL-EP - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/1809172050_Texas-Instruments-BQ24618RGET_C202170.pdf - Product Info Url: https://lcsc.com/product-detail/PMIC-Battery-Management_TI_BQ24618RGET_BQ24618RGET_C202170.html - Part Type: Battery Management ICs - LCSC Part Number: C202170 - Role: Power Management - Package: VQFN-24 - JLCPCB Part Class: Extended Part - Manufacturer Part Number: BQ24618RGET **Pins:** - #ACDRV [pin 3] - #BATDRV [pin 23] - #PG [pin 8] - ACN [pin 1] - ACP [pin 2] - ACSET [pin 16] - BTST [pin 22] - CE [pin 4] - EP [pin 25] - GND [pin 17] - HIDRV [pin 21] - ISET1 [pin 11] - ISET2 [pin 15] - LODRV [pin 19] - PH [pin 20] - REGN [pin 18] - SATA2 [pin 9] - SRN [pin 13] - SRP [pin 14] - STAT1 [pin 5] - TS [pin 6] - TTC [pin 7] - VCC [pin 24] - VFB [pin 12] - VREF [pin 10] ### U11 — [BQ29209DRBT](https://www.flux.ai/lcsc/bq29209drbt~2pic.md) - Part Type: Battery Management ICs - Role Details: 2S battery protector/BMS IC - Role: Protection - JLCPCB Part Class: Extended Part - Package or Case Code: SON-8_L3.0-W3.0-P0.65-TL-EP - Package: SON-8 - Manufacturer Name: TI(德州仪器) - LCSC Part Number: C2864935 - Manufacturer Part Number: BQ29209DRBT **Pins:** - ~{CB_EN} [pin 6] - CD [pin 4] - EP [pin 9] - GND [pin 5] - OUT [pin 8] - VC1 [pin 2] - VC1_CB [pin 3] - VC2 [pin 1] - VDD [pin 7] ### U2 — [MCP23017-E/SO](https://www.flux.ai/adrian95/mcp23017-eso~ns4.md) - Part Type: Integrated Circuit - I2C Address: 0x20 - Role Details: I²C 16-bit GPIO expander for MOSFET control - Manufacturer Part Number: MCP23017-E/SO - Bus Group: I2C Bus - Role: Interface - Datasheet URL: https://ww1.microchip.com/downloads/aemDocuments/documents/APID/ProductDocuments/DataSheets/MCP23017-Data-Sheet-DS20001952.pdf - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: Microchip - Integrated Circuit Type: Embedded Controller - Bus Type: I2C **Pins:** - ~CS~ [pin 11] - ~RESET~ [pin 18] - A0 [pin 15] - A1 [pin 16] - A2 [pin 17] - GPA0 [pin 21] - GPA1 [pin 22] - GPA2 [pin 23] - GPA3 [pin 24] - GPA4 [pin 25] - GPA5 [pin 26] - GPA6 [pin 27] - GPA7 [pin 28] - GPB0 [pin 1] - GPB1 [pin 2] - GPB2 [pin 3] - GPB3 [pin 4] - GPB4 [pin 5] - GPB5 [pin 6] - GPB6 [pin 7] - GPB7 [pin 8] - INTA [pin 20] - INTB [pin 19] - SCK [pin 12] - SI [pin 13] - SO [pin 14] - VDD [pin 9] - VSS [pin 10] ### U3 — [MCP23017-E/SO](https://www.flux.ai/adrian95/mcp23017-eso~ns4.md) - Manufacturer Name: Microchip - Integrated Circuit Type: Embedded Controller - Bus Group: I2C Bus - Bus Type: I2C - Role Details: I²C 16-bit GPIO expander for MOSFET control - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: MCP23017-E/SO - Datasheet URL: https://ww1.microchip.com/downloads/aemDocuments/documents/APID/ProductDocuments/DataSheets/MCP23017-Data-Sheet-DS20001952.pdf - I2C Address: 0x21 - Role: Interface - Part Type: Integrated Circuit **Pins:** - ~CS~ [pin 11] - ~RESET~ [pin 18] - A0 [pin 15] - A1 [pin 16] - A2 [pin 17] - GPA0 [pin 21] - GPA1 [pin 22] - GPA2 [pin 23] - GPA3 [pin 24] - GPA4 [pin 25] - GPA5 [pin 26] - GPA6 [pin 27] - GPA7 [pin 28] - GPB0 [pin 1] - GPB1 [pin 2] - GPB2 [pin 3] - GPB3 [pin 4] - GPB4 [pin 5] - GPB5 [pin 6] - GPB6 [pin 7] - GPB7 [pin 8] - INTA [pin 20] - INTB [pin 19] - SCK [pin 12] - SI [pin 13] - SO [pin 14] - VDD [pin 9] - VSS [pin 10] ### U5 — [TPS54821RHLR](https://www.flux.ai/jecstronic/tps54821rhlr~8vx.md) - Datasheet URL: https://www.ti.com/general/docs/suppproductinfo.tsp?distId=10&gotoUrl=https%3A%2F%2Fwww.ti.com%2Flit%2Fgpn%2Ftps54821 - Manufacturer Part Number: TPS54821RHLR - Role: Power Conversion - Manufacturer Name: Texas Instruments - Voltage: 6V - Role Details: 6 V buck converter for firing rails - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Integrated Circuit **Pins:** - BOOT [pin 13] - COMP [pin 8] - EN [pin 10] - EXP [pin 15] - EXP__1 [pin 16] - EXP__2 [pin 17] - EXP__3 [pin 18] - EXP__4 [pin 19] - GND_2 [pin 2] - GND_3 [pin 3] - PH_11 [pin 11] - PH_12 [pin 12] - PVIN_4 [pin 4] - PVIN_5 [pin 5] - PWRGD [pin 14] - RT/CLK [pin 1] - SS/TR [pin 9] - VIN [pin 6] - VSENSE [pin 7] ### U6 — [TPS54821RHLR](https://www.flux.ai/jecstronic/tps54821rhlr~8vx.md) - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Integrated Circuit - Role: Power Conversion - Voltage: 6V - Manufacturer Name: Texas Instruments - Role Details: 6 V buck converter for firing rails - Manufacturer Part Number: TPS54821RHLR - Datasheet URL: https://www.ti.com/general/docs/suppproductinfo.tsp?distId=10&gotoUrl=https%3A%2F%2Fwww.ti.com%2Flit%2Fgpn%2Ftps54821 **Pins:** - BOOT [pin 13] - COMP [pin 8] - EN [pin 10] - EXP [pin 15] - EXP__1 [pin 16] - EXP__2 [pin 17] - EXP__3 [pin 18] - EXP__4 [pin 19] - GND_2 [pin 2] - GND_3 [pin 3] - PH_11 [pin 11] - PH_12 [pin 12] - PVIN_4 [pin 4] - PVIN_5 [pin 5] - PWRGD [pin 14] - RT/CLK [pin 1] - SS/TR [pin 9] - VIN [pin 6] - VSENSE [pin 7] ### U7 — [TPS259824ONRGER](https://www.flux.ai/adrian95/tps259824onrger~wh3.md) - Role: Protection - Role Details: eFuse with inrush control for 6 V rails - Part Type: Integrated Circuit - Manufacturer Name: Texas Instruments - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: TPS259824ONRGER - Datasheet URL: https://www.ti.com/lit/ds/symlink/tps25982.pdf **Pins:** - DVDT [pin 15] - EN/UVLO [pin 6] - GND_1 [pin 4] - GND_2 [pin 5] - GND_3 [pin 14] - GND_4 [pin 26] - ILIM [pin 8] - IMON [pin 9] - IN_1 [pin 1] - IN_2 [pin 2] - IN_3 [pin 3] - IN_4 [pin 16] - IN_5 [pin 25] - ITIMER [pin 7] - LDSTRT [pin 12] - NRETRY [pin 11] - OUT_1 [pin 17] - OUT_2 [pin 18] - OUT_3 [pin 19] - OUT_4 [pin 20] - OUT_5 [pin 21] - OUT_6 [pin 22] - OUT_7 [pin 23] - OUT_8 [pin 24] - PG [pin 13] - RETRY_DLY [pin 10] ### U8 — [TPS259824ONRGER](https://www.flux.ai/adrian95/tps259824onrger~wh3.md) - Part Type: Integrated Circuit - Manufacturer Name: Texas Instruments - License: https://creativecommons.org/licenses/by/4.0/ - Role: Protection - Role Details: eFuse with inrush control for 6 V rails - Manufacturer Part Number: TPS259824ONRGER - Datasheet URL: https://www.ti.com/lit/ds/symlink/tps25982.pdf **Pins:** - DVDT [pin 15] - EN/UVLO [pin 6] - GND_1 [pin 4] - GND_2 [pin 5] - GND_3 [pin 14] - GND_4 [pin 26] - ILIM [pin 8] - IMON [pin 9] - IN_1 [pin 1] - IN_2 [pin 2] - IN_3 [pin 3] - IN_4 [pin 16] - IN_5 [pin 25] - ITIMER [pin 7] - LDSTRT [pin 12] - NRETRY [pin 11] - OUT_1 [pin 17] - OUT_2 [pin 18] - OUT_3 [pin 19] - OUT_4 [pin 20] - OUT_5 [pin 21] - OUT_6 [pin 22] - OUT_7 [pin 23] - OUT_8 [pin 24] - PG [pin 13] - RETRY_DLY [pin 10] ### Y1 — [XVHEELNANF-40MHZ](https://www.flux.ai/lcsc/xvheelnanf-40mhz~u45h.md) - JLCPCB Part Class: Extended Part - Manufacturer Part Number: XVHEELNANF-40MHZ - Package or Case Code: CRYSTAL-SMD_4P-L5.0-W3.2-BL - LCSC Part Number: C295530 - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2304140030_TAITIEN-Elec-XVHEELNANF-40MHZ_C295530.pdf - Package: CRYSTAL-SMD_4P-L5.0-W3.2-BL - Manufacturer Name: TAITIEN(泰艺电子) - Role: Oscillator - Product Info Url: https://lcsc.com/product-detail/Others_TAITIEN-Elec-XVHEELNANF-40MHZ_C295530.html - Role Details: System clock crystal for ESP32-S3 main MCU - Part Type: Crystals **Pins:** - GND [pin 4] - GND [pin 2] - OSC1 [pin 1] - OSC2 [pin 3] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/mikep6345/dominant-plum-speeder-bike~3b](https://www.flux.ai/mikep6345/dominant-plum-speeder-bike~3b).* --- *Generated from [https://www.flux.ai/mikep6345/dominant-plum-speeder-bike~3b](https://www.flux.ai/mikep6345/dominant-plum-speeder-bike~3b)*