Low-current charger provides battery backup from USB to 1-cell applications

https://www.electronics-lab.com/low-current-charger-provides-battery-backup-usb-1-cell-applications/

Another app note from Maxim Integrated on small current battery management.The circuit provides a 1-cell Li ion backup battery charger for low-current devices performing resistor limited current sharing. A simple circuit sometimes needs to charge a 1-cell Lithium-ion (Li+) battery from a USB power source and simultaneously provide backup power for low-current-consumption devices. The circuit […]