Power Management Hat (B) - hat for Raspberry Pi - Waveshare 23452

Power Management Hat (B) is an overlay designed for the Raspberry Pi board that allows you to manage energy . The overlay is equipped with a dual-core RP2040 processor with a clock frequency of up to 133 MHz, which is responsible for controlling the operation of the device. It allows the user many useful functions, such as: timed switching on and off or measurement of operating voltage and current consumption. The Power Management Hat (B) is also equipped with the MP28167-A buck-boost chip for fast response to load transients.

The subject of the sale is the overlay only. Raspberry Pi must be purchased separately.

Power Management Hat (B) - power management module - overlay for Raspberry Pi - Waveshare 23452.

• It has a 40-pin GPIO connector that is compatible with the Raspberry Pi series
• It is equipped with a dual-core ARM Cortex M0+ processor, clocked at up to 133 MHz
• It has a built-in PCF8523 high precision RTC chip
• It has a built-in MP28167-A buck-boost DC chip for fast response to load transients
• Includes a built-in user-defined button, can be used for Raspberry Pi startup, safe shutdown, or other custom functions based on individual needs
• It has been equipped with a number of protection circuits such as counter-current power supply, counter-current, which ensure stable and safe operation
• It also has a voltage/current monitoring circuit, monitors the Raspberry Pi's operating voltage and current in real time

1. USB type C for programming, USB communication and power supply
2. MP28167-A DC buck-boost IC for fast response to load transients
3. The CR1220 battery holder provides stable power to the RTC clock chip
4. PCF85063 RTC chip
5. Chip W25Q32JVSSIQ 4MB NOR-Flash
6. RP2040 dual-core processor, frequency up to 133MHz
7. INA219 zero drift bi-directional current/power monitor
8. User button, used as the power button
9. Reset button
10. BOOT button - press the Reset button at the same time, release the Reset button and then the BOOT button to enter programming mode
11. PH2.0 battery connector
12. Fan connector
13. LED - status indicator
14. LED - power indicator
15. High-performance ETA6096 lithium battery charging system
16. Raspberry Pi GPIO connectors
17. RP2040 pins compatible with Raspberry Pi Pico pins, for connection to Pico Hat

Arrangement of components on the board.

Shield for Raspberry Pi from Waveshare.

• Built-in chip: RP2040
• Communication interface: UART + GPIO
• Communication speed: default 115200 bps (configurable)
• Power connector: USB port or PH2.0 connector
• Power input voltage (USB): 5V
• Power input voltage (PH2.0): 3.3 V to 4.2 V (3.7 V lithium battery)
• Mounting hole diameter: 3mm
• Board dimensions: 56.5 x 65 mm

• Power Management Hat (B) - power management module - overlay for Raspberry Pi - 1 piece
• USB connection cable
• Strip with 2.54 mm connectors
• Mounting elements - screws, washers, spacers

Components included in the set.

• Manufacturer website: Waveshare 23452
• Product wiki page