CUAV PMU 2 Lite Power Management Module, 15V / 5V, CAN, 220A

CUAV PMU 2 Lite 5V - high-precision power management module (Power Management Unit) for unmanned systems, compatible with PX4 and ArduPilot autopilots. The device provides real-time voltage and current monitoring, telemetry transmission via CAN-bus and stable power supply to the flight controller.

The module is built on a modern STM32H5 ARM Cortex-M33 processor with a clock frequency of 250 MHz and uses the proprietary CUAV M4C architecture together with the ITT3 temperature compensation algorithm. This allows for high measurement accuracy even with significant temperature fluctuations.

CUAV PMU 2 Lite 5V supports a wide range of input voltage from 12 to 70 V and work with batteries up to 16S LiPo. Thanks to the non-contact current measurement technology, the module is able to control the load up to 220 A without additional energy loss.

The built-in stabilizer provides an output voltage 5.2 V with a maximum current up to 7 A, which makes the module an excellent solution for powering flight controllers and peripherals.

Thanks to CAN Bus support, the module easily integrates with the CUAV ecosystem and most modern autopilots.

Technical specifications

Main parameters

• Device type: Power management module (PMU)
• Processor: STM32H5 ARM Cortex-M33
• Clock frequency: 250 MHz
• Architecture:CUAV M4C
• Firmware: CUAV M4C PMU2
• Communication interface: CAN Bus
• Compatibility: PX4, ArduPilot
• Calibration: Factory

Power supply

• Input voltage: 12–70 V
• Output voltage:5.2 V
• Maximum output current: 7 A
• Battery support: up to 16S LiPo

Measurement 

• Current measurement range: 0-220 A
• Instantaneous current: 220 A (up to 120 s)
• Continuous current: 130 A
• Voltage measurement accuracy: ±0.05 V
• Current measurement accuracy: ±0.1 A

Connectors

• Power connectors: QS8
• Power cable: AWG8
• Data Connector: MOLEX 5025850670

Physical Specifications

• Body Material: Aluminum Alloy
• Operating Temperature: -20°C ~ +80°C
• Weight: 222g (with cables)
• Dimensions (without cables): 57.25 × 43.5 × 18.5 mm
• Dimensions (with mounting holes): 57.25 × 32.25 × 18.5 mm

Compatibility

• CUAV X7+
• CUAV X7 Pro
• CUAV V5+
• CUAV V6X
• Pixhawk compatible controllers
• PX4
• ArduPilot

Kit

• Power management module CUAV PMU 2 Lite 5V - 1 pc.
• Controller connection cable (25 cm) - 1 pc.

Features

• Current measurement up to 220 A
• Overcurrent protection
• Supports batteries up to 16S LiPo
• Input voltage 12–70 V
• STM32H5 ARM Cortex-M33 processor (250 MHz)
• CUAV M4C architecture
• ITT3 temperature compensation algorithm
• CAN Bus interface
• Compatible with PX4 and ArduPilot
• Aluminum case with efficient cooling
• Factory calibration
• Ready to work without additional setup

Benefits

Precise power control
Provides measurement accuracy up to ±0.05 V voltage and ±0.1 A current for stable monitoring of the UAV power system

Powerful output 5.2 V / 7 A
Allows to power flight controllers and peripherals without using additional power stabilizers

Support high loads
Supports current measurement up to 220 A and continuous load up to 130 A under proper cooling conditions

Wide battery compatibility
Works with power sources from 12 to 70 V and supports batteries up to 16S LiPo

Reliable communication via CAN Bus
Provides stable telemetry transmission and compatibility with modern PX4 and ArduPilot autopilots

Efficient cooling
Aluminum housing with heat-conducting elements contribute to stable operation even at high currents

Ready to install
Each module undergoes factory calibration and testing, which allows it to be used immediately after connection