Avionics
Shark ESC 80
Coming Soon
High-current 4-in-1 ESC for UAV propulsion systems
Controls four motors from one board. Each channel has independent current sensing, a dedicated gate driver and channel-level protection.
- Continuous × 4
- 80 A
- Motor channels
- 4
- LiPo input
- 4–8S
Four motor channels, one ESC
Shark ESC 80 is a 4-in-1 electronic speed controller for multi-motor UAVs. It places four motor channels on one board, with separate current sensing and protection for each channel.
This layout replaces four separate ESC modules with one compact power-control board.
Battery
4–8S LiPo
Controller
Shark ESC 80
50 × 44 mm
Dedicated gate driver
Each motor channel has its own DRV8350S gate-driver stage.
Independent current sensing
Each channel measures motor current on its own Kelvin shunt path.
Channel-level protection
VDS-OCP and fault handling operate separately for each motor channel.
- Motor channels
- 4
- Board size (mm)
- 50×44
- LiPo input
- 4–8S
- Continuous × 4
- 80 A
High-current motor control
Each of the four motor channels is rated for 80 A continuous current.
Peak current is rated at 120 A. The controller supports 4–8S LiPo batteries.
- Continuous × 4
- 80 A
- Peak current
- 120 A
- LiPo input
- 4–8S
| Parameter | Value |
|---|---|
| Input voltage | 4–8S LiPo |
| Continuous current | 80 A × 4 |
| Peak current | 120 A |
Current sensing for each motor
Each motor channel has an independent current-measurement path. The controller can monitor current per motor rather than relying only on a single common total-current reading.
When supported by the firmware, these measurements can be used for per-motor telemetry and protection data.
| Parameter | Value |
|---|---|
| Current sensing | 4× independent motor current sensing |
| Shunt | 4× 0.2 mΩ, 4-terminal Kelvin |
| Current amplifier | STM32G474 internal OPAMP / PGA |
High-resolution PWM control
The STM32G474VET6 manages motor timing, PWM generation, current sensing, protection and firmware execution.
Its HRTIM architecture provides three PWM outputs per motor, for 12 high-resolution PWM outputs in total.
| Parameter | Value |
|---|---|
| MCU | STM32G474VET6 |
| PWM architecture | 3× PWM / motor, 12× HRTIM PWM total |
Firmware options
Shark ESC 80 can run custom STM32G4 firmware or AM32.
- Custom STM32G4 firmware
- AM32
Gate drivers and power stage
Each motor channel uses its own DRV8350SRTVT gate driver, allowing control and protection to operate per channel.
The switching stage uses 24 IAUCN10S7N021ATMA1 MOSFETs rated at 100 V. The ESC accepts 4–8S LiPo input.
| Parameter | Value |
|---|---|
| Gate driver | 4× DRV8350SRTVT |
| MOSFET | 24× IAUCN10S7N021ATMA1, 100 V |
Channel-level protection
Each motor channel has VDS overcurrent protection. nFAULT and HRTIM signals pass faults to the control layer for handling.
A fault on one motor channel can be detected separately and reported to the control system.
Compact propulsion integration
The 50 × 44 mm board uses a 30.5 × 30.5 mm mounting pattern.
Onboard power stages supply 15 V to the gate drivers and 3.3 V to the control circuitry.
- Size (mm)
- 50×44
- Mounting (mm)
- 30.5
- Main buck
- 15 V
- Logic supply
- 3.3 V
| Parameter | Value |
|---|---|
| Size | 50 × 44 mm |
| Mounting pattern | 30.5 × 30.5 mm |
| Main buck | LMR51610YFDBVR, 15 V |
| 3.3 V supply | TPS62172QDSGRQ1 |
Technical specifications
Electrical, control, power-stage, sensing, protection and mechanical specifications for Shark ESC 80.
Electrical
| Parameter | Value |
|---|---|
| Input voltage | 4–8S LiPo |
| Continuous current | 80 A × 4 |
| Peak current | 120 A |
Control architecture
| Parameter | Value |
|---|---|
| MCU | STM32G474VET6 |
| Gate driver | 4× DRV8350SRTVT |
| PWM architecture | 3× PWM / motor, 12× HRTIM PWM total |
| Firmware | Custom STM32G4 firmware / AM32 |
Power stage
| Parameter | Value |
|---|---|
| MOSFET | 24× IAUCN10S7N021ATMA1, 100 V |
| Main buck | LMR51610YFDBVR, 15 V |
| 3.3 V supply | TPS62172QDSGRQ1 |
Current measurement
| Parameter | Value |
|---|---|
| Current sensing | 4× independent motor current sensing |
| Shunt | 4× 0.2 mΩ, 4-terminal Kelvin |
| Current amplifier | STM32G474 internal OPAMP / PGA |
Protection
| Parameter | Value |
|---|---|
| Protection | Per-motor VDS-OCP + nFAULT / HRTIM fault |
Mechanical
| Parameter | Value |
|---|---|
| Size | 50 × 44 mm |
| Mounting pattern | 30.5 × 30.5 mm |
Questions
Technical answers to common questions about Shark ESC 80.
Talk to us about Shark ESC 80
Contact our team for integration, compatibility and procurement information.