ARK 12S Payload Power Module

The ARK 12S Payload Power Module is rated for 100A continuous battery current at 20C ambient. It is recommended to run multiple power modules in parallel if more than 100A continuous current is required.

The board uses an INA238 digital power monitor with a 0.1mΩ shunt to measure voltage and current over I2C. A 5.2V 6A regulator outputs power to the avionics using a 6 pin Molex CLIK-Mate connector that matches the pinout on the ARK PAB Carriers. A 12V 6A regulator outputs power to payloads using a 4 pin Molex CLIK-Mate connector.

PX4 InstructionsArduPilot Instructions3D Model

Cooling

When operating at high battery current and/or high 5V/12V regulator output current, it is recommended to actively cool the board.

Pinout

5V/I2C - 6 Pin Molex CLIK-Mate

Pin Number	Signal Name	Voltage
1	VBRICK	5.2V
2	VBRICK	5.2V
3	SCL	3.3V
4	SDA	3.3V
5	GND	GND
6	GND	GND

12V - 4 Pin Molex CLIK-Mate

Pin Number	Signal Name	Voltage
1	12V	12.0V
2	12V	12.0V
3	GND	GND
4	GND	GND