CXLB73243 is a single lithium battery charging management chip that can be powered by solar energy. The device includes power transistors internally and does not require external current sensing resistors or resistive diodes. The internal charging current adaptive module can automatically adjust the charging current according to the current output capability of the input power supply. Users do not need to consider the worst-case scenario and can maximize the use of the input power supply's current output capability. It is very suitable for using solar panels and other devices with limited current output capabilityApplication of lithium battery charging powered by power supply. CXLB73243 requires very few peripheral components, making it very suitable for portable applications. The thermal modulation circuit can modulate the chip temperature to around 132 ℃ when the power consumption of the device is relatively high or the ambient temperature is high to avoid excessive chip temperature. The internally fixed constant voltage charging voltage is 4.2V, which can also be adjusted upwards through an external resistor. The charging current is set through an external resistor. When the input voltageWhen powered off, CXLB73243 automatically enters low-power sleep mode, with battery current less than 3 microamperes. Other functions include low input voltage latch, automatic recharging, JEITA compliant battery temperature monitoring, charging current overcurrent protection, and charging status/charging end status indication. CXLB73243 adopts a 2mm x 3mm 8-pin DFN package.
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[ CXLB73243 ]"
