MCU controls buck circuit to charge embedded Li-ion battery in three phase: pre-charge, constant current, and constant voltage.
Charge is terminated based on programmer current level.
A programmable charge timer provides a safety backup for charge termination.
Discharge circuit can be opened by detecting the load pluged in.
The battery can supply 5V voltage with current up to 500mA ~ 2000mA through pump circuit.
The LEDs can indicate the remaining battery power accurately.
Providing variety of protection: Over-Voltage, Over-Current, Over-Temperature,Shortcut-circuit.
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