Power Management HAT for Raspberry Pi with RTC and RP2040 MCU

The Power Management HAT(B) is a Raspberry Pi power management control board, which can provide a set of extremely powerful power management for Raspberry Pi, such as timing switches, measuring working voltage and current, etc. The load transient response function enables fast switching among multiple power supplies.

Features

• Standard Raspberry Pi 40PIN GPIO extension header, supports Raspberry Pi series boards
• Onboard MCU (RP2040), powerful and easy to use
• Onboard PCF8523 RTC chip, provides precise RTC information
• Onboard MP28167-A buck-boost DC chip for fast load transient response
• Protection circuits such as power supply anti-reverse, counter-current proof, etc. ensure stable and safe operating
• Onboard user-defined button, can be used for Raspberry Pi start-up, safe shutdown, or other customized function
• It can detect the input power supply voltage and the working current, and it can be programmed to cut off the power supply immediately to ensure the working life of the lithium battery.
• Voltage/current monitoring circuit, monitors the Raspberry Pi operating voltage and current in real-time
• Comes with complete resources and manual

Specifications

• Main chip: RP2040
• Communication interface: UART + GPIO
• Download interface: USB + SWD (debug)
• Baud rate: default 115200bps (configurable)
• Power supply: USB/PH2.0 connector
• USB port voltage: 5V
• PH2.0 connector voltage: 3.3-4.2V (3.7V Li battery)
• Built-in circuits: battery anti-reverse, counter-current proof, voltage/current monitoring
• Dimensions: 56.5mm x 65mm
• Fixed hole diameter: 3.0mm

Please check the product Wiki for manuals, installation guide and more.

Board overview

1. USB type-C - for downloading programs, USB communication and power supply
2. MP28167-A - buck-boost DC chip for fast load transient response
3. CR1220 button cell holder - provides uninterruptible power supply for RTC clock chip
4. PCF85063 - RTC chip, provides precise RTC information
5. W25Q32JVSSIQ - 4MB NOR-Flash
6. RP2040 dual-core processor, up to 133MHz operating frequency
7. INA219 - zero-drift, bi-directional current/power monitor
8. PWR button - user button, usually used as the power button
9. Reset button - RP2040 reset button
10. BOOT button - press with the Reset button at the same time, release the Reset button then the BOOT button to enter download mode
11. PH2.0 battery interface for 3.7~4.2V regulated power supply or lithium battery
12. Fan header
13. Status indicator
14. Power supply indicator
15. ETA6096 high efficiency lithium battery recharge chip
16. Raspberry Pi GPIO header
17. RP2040 pinout interface - compatible with Raspberry Pi Pico standard pinout, for connecting with Pico HAT