Last Updated on : 2024-06-24 03:16:38download
The Tuya Sandwich non-rechargeable battery power supply board is part of the Tuya Sandwich Evaluation Kit and is used to supply power to the master control board, Wi-Fi communication board, and function board.
The power supply board supports one CR2032 battery or two AA batteries connected in series to supply power. You can select the primary voltage or 3.3V for the output voltage VOUT by adjusting the jump wire’s position of the P5 connector. And you can select VBAT/2 or VBAT/3 for ADC output by adjusting the jumper cap’s position of the P8 connector.
Component | Description |
---|---|
U1(SY7072A) | High efficiency, 1 MHz switching frequency, 2A step-up chip, 5 uA quiescent current, and SOT23-6 package. |
The definition of the pins on the power supply board is as follows:
I/O | Description |
---|---|
VOUT | Power output. It outputs 3.3V or primary voltage. |
GND | Power ground. |
ADC | Battery level collection pin which outputs VBAT/2 or VBAT/3. |
Schematic diagram of Tuya Sandwich non-rechargeable battery power supply board:
PCB of Tuya Sandwich non-rechargeable battery power supply board:
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