The CXLB73196 is a complete single cell Li-ion battery powered by constant current/constant voltage linear charger. The SOP8/MSOP package with a heat sink at the bottom and a small number of external components make the CXLB73196 ideal for portable applications. CXLB73196 can be suitable for USB power supply and adapter power supply work.
Due to the internal PMOSFET architecture, plus the anti-back circuit, there is no need for external isolation diodes. Thermal feedback automatically adjusts the charging current to limit the chip temperature during high power operation or high ambient temperature conditions. The charging voltage is fixed at 4.2V, while both the charging current and the charge cut-off current can be set externally via a resistor. When the charge current drops to the set charge cut-off current value after reaching the final float voltage, the CXLB73196 will automatically terminate the charge cycle.
When the input voltage (AC adapter or USB power) is removed, the CXLB73196 automatically enters a low current state, reducing the battery drain current to less than 2uA. CXLB73196 when there is a power supply, it can also be placed in shutdown mode to reduce the supply current to 55uA. Other features of the CXLB73196 include battery temperature detection, undervoltage lockout, automatic recharge, and two LED status pins to indicate charging and completion.
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[ CXLB73196 ]"
