PMU 2 Lite Power Manager Unit
- ±0.1A / ±0.05V Measurement Accuracy.
- 20V ~ 70V Wide Voltage Input, 220A Current Detection.
- Runs Self-Developed M4C Architecture Software.
- Adopt ITT3 Temperature Impedance Tracking Algorithm.
- Support CAN Communication Protocol.
220A Current Detection, Overcurrent Warning Protection
PMU 2 Lite utilizes non-contact, coreless busbar current detection technology and CNC-machined current sensing sheets. PMU 2 Lite can achieve instantaneous, high-current 220A lossless current measurement in a compact package. It also supports overcurrent warning, effectively ensuring safe system operation, preventing abnormal damage to equipment, and improving overall reliability.
current detection technology
16S Battery Input, Wide Voltage, Flexible Adaptation
PMU 2 Lite supports a 20V to 70V wide voltage input and is compatible with 16S batteries. It adapts to various power supply conditions and can easily meet the power needs of various unmanned systems in different scenarios, significantly improving its adaptability.
High-Performance Processor, Runs M4C Architecture Software
PMU 2 Lite employs a new STM32H5 Arm® Cortex®-M33 CPU with a frequency of 250MHz as the processor and the self-developed M4C architecture software. It adopts the ITT3 temperature impedance tracking algorithm, enabling excellent measurement consistency in a wide temperature range and across the full measurement range. With an accuracy of ±0.05V / ±0.1A, it ensures the stability and reliability of data in complex environments.
CAN Bus Communication, Multi-Platform Compatibility
PMU 2 Lite employs the standard CAN bus communication protocol and is compatible with mainstream open-source platforms such as ArduPlipot and PX4. It supports various unmanned system devices, with a wide range of application scenarios.
15V/5V Output, Extensive Controller Compatibility
Aluminum Alloy Shell, Excellent Heat Dissipation
PMU 2 Lite is equipped with an aluminum alloy shell and features heat-conducting protrusions and thermally conductive silicone designed for heat-generating components like the power supply and inductor. This effectively improves heat dissipation efficiency and reduces internal temperatures during operation. PMU 2 Lite also employs AWG8 and QS8 connectors, allowing for larger wire diameters and significantly reducing heat generation under heavy loads.
Factory Pre-Calibrated, Ready-to-Use
Each module is factory pre-calibrated and temperature-learned. The factory uses calibration architecture hardware to conduct load tests, temperature learning and pre-calibration across the full current and voltage ranges, ensuring that each module maintains excellent accuracy and stability under various working conditions. It is ready for immediate use without additional calibration.
Specifications & Parameters
| Basic Parameters | |
| Processor | STM32H5 Arm° Cortex°‑M33 250 MHz |
| Input voltage | 15V version: 20V~70V 5v version: 12v~70V |
| Instantaneous Current | 220A@120Sec |
| Continuous Current | 130A(good heat dissipation environment) |
| Detection Current | 0A～220A |
| Voltage Accuracy | ±0.05V |
| Current Accuracy | ±0.1A |
| Voltage Output | 15V version: 15V/6A 5V version:5.2V/7A |
| Protocol | CAN |
| Calibration Setting | Factory pre‑calibrated, ready to use |
| Firmware | CUAV M4C PMU2 |
| Port Type | |
| Power Port | 7AWG/QS8 |
| Data Port | 15V version: MOLEX 5055670871 5V version: MOLEX 5025850670 |
| Hardware Parameter | |
| Size | 57.25 x 32.25 x 18.5 mm (includes screw holes, excludes cable) 57.25 x 43.5 x 18.5 mm (excludes screw holes and cable) |
| Weight | 222g(including cable) |
| Operating Temperature | -20℃～+80℃ |
PMU 2 Lite Dimensions Chart
PMU 2 Lite Pinouts
ArduPilot, Dronecode, and PX4 Long-Term Partners
CUAV Tech Inc., Ltd. is a National High-Tech Enterprise and Guangdong Provincial Specialized, Sophisticated, Innovative SME that focuses on open-source unmanned system innovation technologies. It integrates R&D, production, sales, after-sales service, and technical support into a cohesive operation. The company maintains long-term collaborative partnerships with leading open-source organizations such as ArduPilot, Dronecode, and PX4.
Supports ArduPilot and PX4 firmware
Procurement/Purchasing Communication
