Features UM2516
6/29 UM2516 Rev 4
1 Features
• Full reference design for electronic speed controller capable of both sensorless FOC
and 6-step algorithm
• Designed for drones with up to 6S LiPo battery pack or equivalent suitable DC supply
• 3-phase driver board for BLDC/PMSM motors with discrete N-channel 60 V, 120 A
STripFET F7 power MOSFETs
• Arm
®(a)
Cortex
®
-M4 32-bit STM32G431CB MCU, 213 DMIPS, 128 Kbytes of Flash
memory, 32 Kbytes of SRAM, analog rich, math accelerator
• On-board ST-LINK/V2-1 debugger /programmer detachable from the main board
• Output peak motor current (maximum peak current tested with a propeller to have an
air-forced cooling): 40 A
• Designed with SMD ceramic capacitors with very low profiles
• BEC available through the daughterboard (5 V for external board supplying, for
example a flight control board)
• Support for motor sensors (Hall or encoder)
• Supported by ST motor control software development kit (SDK) with ST motor profiler
• 3-shunt mode supported for motor current sensing
• L6387 High voltage high and low-side driver with integrated interlocking function
• Overcurrent and overvoltage protection feature (OCP/OVP)
• Thermal measuring and overheating protection with NTC on board
• ESC ready for communication with any standard flight control unit (FCU):
PWM/CAN/UART
• Potentiometer and user button available on the daughterboard
• 2 user LEDs: 1 green LED for 3.3 V level, and 1 red LED configurable by the user
• Target applications: motor driving for R/C vehicles, UAV drone, electric car, or boat
• PCB type and size:
– FR-4 PCB material
– 8-layer layout
– Dimensions (including the daughterboard with ST-LINK part): 30 mm x 41 mm
– Weight (including the daughterboard with ST-LINK part): 9.2 g
• RoHS compliant
Figure 3. Target application
a. Arm is a registered trademark of Arm Limited (or its subsidiaries) in the US and/or elsewhere.
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