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2025-11-07 22:07:04 -0700 |
Tip
This board is part of a larger modular control board ecosystem, CACKLE
This is a single brushless motor driver based on the DRV8311 Texas Instruments chip. It is capable of 5 amps current in a voltage range of 3 to 24 volts. It has integrated current sense amplifiers and protection logic. It supports up to 200khz PWM frequency.
The chip has 3 current sense outputs, tied to all three ADC pins. The motor output is through a Molex Picoblade (1.25mm pitch) 3-pin connector.
The module is a 4-layer PCB with additional exposed traces for the power and ground to add solder for more current carrying capability. I designed it to carry 10 amps with 1 oz outer copper and 0.5oz inner copper, which can be increased to 20 amps current by adding solder. This was the cheapest method to go with, since 2 oz copper would add an additional 30$ per 5 boards.
3D model
