Odrive 3.6 Schematic Fix -
If you are designing a custom breakout board, never assign these specific timer/ADC pins to anything else. The firmware expects them at hard-coded addresses.
The ODrive 3.6 uses the STM32F405RGT6. The schematic reveals the genius of the pin mapping.
One of the most critical support circuits is the brake resistor network. When a motor is decelerated, it regenerates power, sending current back into the DC bus. The schematic shows the brake resistor circuit: a power MOSFET, controlled by a 20kHz PWM signal from the MCU, switches a large external resistor across the DC bus. By varying the duty cycle of this PWM signal, the effective load on the bus is regulated, allowing the regenerated energy to be safely dissipated as heat. Without this, the voltage on the DC bus could rise to dangerous levels, damaging the power supply. odrive 3.6 schematic
The schematic begins with the DC input terminal (J1). Key components include:
| Protection Type | Condition Monitored | System Response | | :--- | :--- | :--- | | | Motor phase current exceeds limit. | Immediately reduces torque or disarms the motor. | | DC Bus Overvoltage | Braking energy causes voltage to rise. | Activates brake resistor to dissipate excess energy. | | DC Bus Undervoltage | Supply voltage drops too low. | Disarms motors to prevent erratic behavior. | | Motor Over-temperature | Internal temperature sensor exceeds limit. | Reduces current limit or disarms the motor. | | Watchdog Timer | Main control loop stops running. | Resets the system to a safe state. | If you are designing a custom breakout board,
The connectivity layout of the ODrive 3.6 schematic is highly versatile, exposing various pins across several heavy-duty terminal blocks and pin headers. Power Connections Main power supply inputs.
Based on the schematics, here are the core components used in the v3.6 design: Microcontroller: STM32F405RGT6 Gate Driver: ODrive Community Power Variants: The v3.6 comes in (12V-24V range) and (12V-56V range) versions ODrive Europe Design Status ODrive v3.6 is currently listed as NRND (Not Recommended for New Designs) ODrive Europe The schematic reveals the genius of the pin mapping
The schematic breaks out multiple I/O ports to make the ODrive highly versatile:
serves as the brain of the board, handling complex FOC (Field Oriented Control) algorithms. Two TI DRV8301
(on the 56V version) and capable of handling peak currents up to 120A per motor Where to Find Official Schematics
