Excerpted from the information book:
Features
Synchronous switch step-down charging
Charging efficiency 94% (3.7V/2A)
Maximum charging current 3A
Charging current external resistor adjustable
Automatically adjusts input current, compatible with small current adapter
Supports 4.20V/4.30V/4.35 V/4.4V battery
Support charging NTC Temperature protection
Support LED charging status indication
Power MOS built-in
750KHz switching frequency, can support 1uH inductor
Input overvoltage and undervoltage protection
IC overtemperature protection
Charging timeout protection
Updated on 2021-4-20:
Please give green light to welding at CHRG
DONE welding red light
Green light indicates charging is complete
Same as Hongliang
No other abnormalities found
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