In this custom carrier board, I designed a on-board UPS circuit for powering Raspberry Pi CM5 module with 2s1p Li-Po battery pack. To supply enough current during the peak load time of CM5, the power supply section can supply up to 4A when using the battery pack.
Key Features
- Raspberry Pi CM5 SoM
- 1 x HDMI Type-A
- 1 x USB 3.0 Type-A
- 1 x USB 2.0 Type-C, for both power supply and flashing CM5 eMMC
- 1 x M.2 M-Key for SSD storage, PCIe Gen 2.0
- GPIO connectors for SPI, UART, I2C, I2S
- UPS
- Texas Instruments BQ25886 2A Boost-mode battery charger for 2s1p Li-Po battery pack
- Texas Instruments INA219 as a battery gauge
- Vishay SIP32429 56 mΩ load switch
- Texas Instruments TPS552892 8A buck-boost converter
