Connecting INA240 with Shunt Resistor

  • Renamed c69b5780-ef9f-475c-97d1-bc3b5d8cb7a2 to INA_REF
  • Renamed 1df848c9-5cad-418f-9300-70d33a476d29 to INA_OUT

Worked

Work done
  • U4: VS → 3V3; GND → GND; REF → 3V3; OUT → U3 PA0
  • Decoupling and input filter added: DCP_VIO_C, RC_R, RC_C
  • Added and sized 4-terminal shunt resistor SHUNT for 70 A @ ≤60% dissipation
  • Rerouted VBAT through shunt: severed VBAT–VBAT_bulk link; VBAT → SHUNT.P1; SHUNT.P2 → VBAT_bulk
  • Kelvin sense: SHUNT.P3 → U4:IN+; SHUNT.P4 → U4:IN–
  • Labeled nets INA_REF and INA_OUT; resolved all current-sense airwires
Success criteria review
  • ✅ INA240A1D VS, GND, REF, OUT pins correctly wired
  • ✅ 4-terminal shunt sized and Kelvin-connected to INA240 IN+ and IN–
  • ✅ All schematic airwires in current-sense stage resolved and connected
No remaining tasks. Next, would you like me to run an ERC check to verify the schematic or proceed to schematic review?
VDRV_H_R
Resistance
100 kΩ
GT_R
Resistance
2.2 Ω
VD_L_R
Resistance
30.1 kΩ
U2 VOUT_3 - VDRV_R_HIGH P1
INA_RC_R P2 - U3 PA0
U2 FB - VDRV_R_HIGH P2
VBAT_ceramic_C P2 - GND GND
VBAT_ceramic_C P2 - GND GND
U4


  • Generic Inductor
    A generic fixed inductor suitable for rapid circuit topology development. The footprint automatically adapts based on the selected package, supporting standard SMD sizes (e.g., 0402, 0603, 0805) as well as well-known inductor packages such as SDR1806, PA4320, SRN6028, and SRR1260. Standard inductor values: 1.0 nH, 10 nH, 100 nH, 1.0 µH, 10 µH, 100 µH, 1.0 mH 1.2 nH, 12 nH, 120 nH, 1.2 µH, 12 µH, 120 µH, 1.2 mH 1.5 nH, 15 nH, 150 nH, 1.5 µH, 15 µH, 150 µH, 1.5 mH 1.8 nH, 18 nH, 180 nH, 1.8 µH, 18 µH, 180 µH, 1.8 mH 2.2 nH, 22 nH, 220 nH, 2.2 µH, 22 µH, 220 µH, 2.2 mH 2.7 nH, 27 nH, 270 nH, 2.7 µH, 27 µH, 270 µH, 2.7 mH 3.3 nH, 33 nH, 330 nH, 3.3 µH, 33 µH, 330 µH, 3.3 mH 3.9 nH, 39 nH, 390 nH, 3.9 µH, 39 µH, 390 µH, 3.9 mH 4.7 nH, 47 nH, 470 nH, 4.7 µH, 47 µH, 470 µH, 4.7 mH 5.6 nH, 56 nH, 560 nH, 5.6 µH, 56 µH, 560 µH, 5.6 mH 6.8 nH, 68 nH, 680 nH, 6.8 µH, 68 µH, 680 µH, 6.8 mH 8.2 nH, 82 nH, 820 nH, 8.2 µH, 82 µH, 820 µH, 8.2 mH #generics #CommonPartsLibrary
  • Generic Capacitor
    A generic fixed capacitor ideal for rapid circuit topology development. You can choose between polarized and non-polarized types, its symbol and the footprint will automatically adapt based on your selection. Supported options include standard SMD sizes for ceramic capacitors (e.g., 0402, 0603, 0805), SMD sizes for aluminum electrolytic capacitors, and through-hole footprints for polarized capacitors. Save precious design time by seamlessly add more information to this part (value, footprint, etc.) as it becomes available. Standard capacitor values: 1.0pF, 10pF, 100pF, 1000pF, 0.01uF, 0.1uF, 1.0uF, 10uF, 100uF, 1000uF, 10000uF 1.1pF, 11pF, 110pF, 1100pF 1.2pF, 12pF, 120pF, 1200pF 1.3pF, 13pF, 130pF, 1300pF 1.5pF, 15pF, 150pF, 1500pF, 0.015uF, 0.15uF, 1.5uF, 15uF, 150uF, 1500uF 1.6pF, 16pF, 160pF, 1600pF 1.8pF, 18pF, 180pF, 1800pF 2.0pF, 20pF, 200pF, 2000pF 2.2pF, 22pF, 220pF, 2200pF, 0.022uF, 0.22uF, 2.2uF, 22uF, 220uF, 2200uF 2.4pF, 24pF, 240pF, 2400pF 2.7pF, 27pF, 270pF, 2700pF 3.0pF, 30pF, 300pF, 3000pF 3.3pF, 33pF, 330pF, 3300pF, 0.033uF, 0.33uF, 3.3uF, 33uF, 330uF, 3300uF 3.6pF, 36pF, 360pF, 3600pF 3.9pF, 39pF, 390pF, 3900pF 4.3pF, 43pF, 430pF, 4300pF 4.7pF, 47pF, 470pF, 4700pF, 0.047uF, 0.47uF, 4.7uF, 47uF, 470uF, 4700uF 5.1pF, 51pF, 510pF, 5100pF 5.6pF, 56pF, 560pF, 5600pF 6.2pF, 62pF, 620pF, 6200pF 6.8pF, 68pF, 680pF, 6800pF, 0.068uF, 0.68uF, 6.8uF, 68uF, 680uF, 6800uF 7.5pF, 75pF, 750pF, 7500pF 8.2pF, 82pF, 820pF, 8200pF 9.1pF, 91pF, 910pF, 9100pF #generics #CommonPartsLibrary
  • Generic Resistor
    A generic fixed resistor ideal for rapid circuit topology development. Its footprint automatically adapts based on the selected package case code—supporting 0402, 0603, 0805, 1203, and many other standard SMD packages, as well as axial horizontal and vertical configurations. Save precious design time by seamlessly add more information to this part (value, footprint, etc.) as it becomes available. Standard resistor values: 1.0 ohm, 10 ohm, 100 ohm, 1.0k ohm, 10k ohm, 100k ohm, 1.0M ohm 1.1 ohm, 11 ohm, 110 ohm, 1.1k ohm, 11k ohm, 110k ohm, 1.1M ohm 1.2 ohm, 12 ohm, 120 ohm, 1.2k ohm, 12k ohm, 120k ohm, 1.2M ohm 1.3 ohm, 13 ohm, 130 ohm, 1.3k ohm, 13k ohm, 130k ohm, 1.3M ohm 1.5 ohm, 15 ohm, 150 ohm, 1.5k ohm, 15k ohm, 150k ohm, 1.5M ohm 1.6 ohm, 16 ohm, 160 ohm, 1.6k ohm, 16k ohm, 160k ohm, 1.6M ohm 1.8 ohm, 18 ohm, 180 ohm, 1.8K ohm, 18k ohm, 180k ohm, 1.8M ohm 2.0 ohm, 20 ohm, 200 ohm, 2.0k ohm, 20k ohm, 200k ohm, 2.0M ohm 2.2 ohm, 22 ohm, 220 ohm, 2.2k ohm, 22k ohm, 220k ohm, 2.2M ohm 2.4 ohm, 24 ohm, 240 ohm, 2.4k ohm, 24k ohm, 240k ohm, 2.4M ohm 2.7 ohm, 27 ohm, 270 ohm, 2.7k ohm, 27k ohm, 270k ohm, 2.7M ohm 3.0 ohm, 30 ohm, 300 ohm, 3.0K ohm, 30K ohm, 300K ohm, 3.0M ohm 3.3 ohm, 33 ohm, 330 ohm, 3.3k ohm, 33k ohm, 330k ohm, 3.3M ohm 3.6 ohm, 36 ohm, 360 ohm, 3.6k ohm, 36k ohm, 360k ohm, 3.6M ohm 3.9 ohm, 39 ohm, 390 ohm, 3.9k ohm, 39k ohm, 390k ohm, 3.9M ohm 4.3 ohm, 43 ohm, 430 ohm, 4.3k ohm, 43K ohm, 430K ohm, 4.3M ohm 4.7 ohm, 47 ohm, 470 ohm, 4.7k ohm, 47k ohm, 470k ohm, 4.7M ohm 5.1 ohm, 51 ohm, 510 ohm, 5.1k ohm, 51k ohm, 510k ohm, 5.1M ohm 5.6 ohm, 56 ohm, 560 ohm, 5.6k ohm, 56k ohm, 560k ohm, 5.6M ohm 6.2 ohm, 62 ohm, 620 ohm, 6.2k ohm, 62K ohm, 620K ohm, 6.2M ohm 6.8 ohm, 68 ohm, 680 ohm, 6.8k ohm, 68k ohm, 680k ohm, 6.8M ohm 7.5 ohm, 75 ohm, 750 ohm, 7.5k ohm, 75k ohm, 750k ohm, 7.5M ohm 8.2 ohm, 82 ohm, 820 ohm, 8.2k ohm, 82k ohm, 820k ohm, 8.2M ohm 9.1 ohm, 91 ohm, 910 ohm, 9.1k ohm, 91k ohm, 910k ohm, 9.1M ohm #generics #CommonPartsLibrary
  • Ground
    A common return path for electric current. Commonly known as ground.
  • Terminal
    Terminal
    An electrical connector acting as reusable interface to a conductor and creating a point where external circuits can be connected.
  • Net Portal
    Wirelessly connects nets on schematic. Used to organize schematics and separate functional blocks. To wirelessly connect net portals, give them same designator. #portal
  • RMCF0805JT47K0
    General Purpose Thick Film Standard Power and High-Power Chip Resistor 47 kOhms ±5% 0.125W, 1/8W Chip Resistor 0805 (2012 Metric) Automotive AEC-Q200 Thick Film Features: - RMCF – standard power ratings - RMCP – high power ratings - Nickel barrier terminations standard - Power derating from 100% at 70ºC to zero at +155ºC - RoHS compliant, REACH compliant, and halogen free - AEC-Q200 compliant
  • 875105359001
    10 µF 16 V Aluminum - Polymer Capacitors Radial, Can - SMD 30mOhm 2000 Hrs @ 105°C #commonpartslibrary #capacitor #aluminumpolymer #radialcan
  • CTL1206FYW1T
    Yellow 595nm LED Indication - Discrete 1.7V 1206 (3216 Metric)
  • 1070TR
    Battery Holder (Open) Coin, 20.0mm 1 Cell SMD (SMT) Tab bate or batt #forLedBlink

1s 4in1 esc

1s 4in1 esc thumbnail
4-in-1 1S–2S 70A BLDC ESC with Integrated VBAT-to-5 V Buck-Boost Converter Feeding Onboard 3.3 V BEC (TLV62568) and 5 V Peripherals, Retaining TPS61088 for 10 V VDRV Power Stage, STM32G431CBT6 MCU Control with 12 PWM Outputs (dead-time insertion) and 4 DSHOT Inputs, 4× DRV8328 Gate Drivers, 24× NTMFS5C628NL MOSFETs, INA181 Current Sense, JST-SH FC Interface on a 2-Layer High-Current PCB #PowerManagement #MCUUpgrade #STM32G431 #12PWM #DSHOT

Properties

Buttons

Battery

10

USB

S1: PC6; S2: PC7; S3: PB0; S4: PB1

TIM1_CH1: PA8; TIM1_CH1N: PB13; TIM1_CH2: PA9; TIM1_CH2N: PB14; TIM1_CH3: PA10; TIM1_CH3N: PB15; TIM1_CH4: PA11

Power Conversion

Automotive

flowchart TD VBAT["VBAT Input 1S-2S"] BulkCaps["VBAT Bulk Capacitors"] BuckBoost5V["VBAT to 5V Buck-Boost"] Rail5V["5V Rail"] BuckBEC3V3["3.3V BEC TLV62568"] Rail3V3["3.3V Rail"] BoostVDRV["10V VDRV Boost TPS61088"] VDRV10V["10V VDRV Rail"] MCU["STM32G431CBT6 MCU"] GateDrivers["DRV8328 Gate Drivers"] MOSFETs["NTMFS5C628NL MOSFETs"] CurrentSense["Shunt + INA181 Current Sense"] Telemetry["Telemetry / TLM"] JSTSH["JST-SH BM08B-SRSS-TB FC Header"] VBAT --> BulkCaps BulkCaps --> BuckBoost5V BuckBoost5V --> Rail5V Rail5V --> BuckBEC3V3 BuckBEC3V3 --> Rail3V3 BulkCaps --> BoostVDRV BoostVDRV --> VDRV10V Rail3V3 --> MCU Rail5V --> MCU VDRV10V --> GateDrivers Rail3V3 --> GateDrivers GateDrivers --> MOSFETs VBAT --> CurrentSense CurrentSense --> MCU MCU --> Telemetry Telemetry --> JSTSH VBAT --> JSTSH Rail5V --> JSTSH Rail3V3 --> JSTSH CurrentSense --> JSTSH ClockIn["External Clock/HSE"] --> MCU MCU -->|12 PWM| GateDrivers MCU -->|4 DSHOT| GateDrivers CurrentSense -->|ADC_IN| MCU Telemetry -->|UART_TX/RX| MCU

Bare metal

4-in-1 1S–2S 70A BLDC ESC with integrated VBAT-to-5 V buck-boost converter, 3.3 V BEC (TLV62568), 10 V VDRV rail (TPS61088), and STM32G431CBT6 MCU providing 12 PWM outputs and 4 DSHOT inputs for 4× DRV8328 gate drivers with current sense and telemetry.

7.4

V

Power Management

Pricing & Availability

Distributor

Qty 1

Arrow

$25.10–$27.72

Digi-Key

$10.93–$12.23

LCSC

$14.23–$14.36

Mouser

$37.83

TME

$4.50

Verical

$15.80–$141.66

Controls