CXLB73242 is a single lithium battery charging management chip that can be powered by solar panels. The device includes power transistors internally and does not require external current sensing resistors and resistive diodes for application. 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 current output capability of the input power supply. It is very suitable for lithium battery charging applications powered by limited current output capabilities such as solar panels. CXLB73242 requires very few peripheral components, making it very suitable for portable applications. The thermal modulation circuit can control the chip temperature within a safe range when the power consumption of the device is relatively high or the ambient temperature is relatively high. The internally fixed constant voltage charging voltage is 4.2V, which can also be adjusted upwards through an external resistor. chargeThe current is set through an external resistor. When the input voltage drops, CXLB73242 automatically enters a low-power sleep mode, where the battery's current consumption is less than 3 microamperes. Other functions include low input voltage latch, automatic recharging, battery temperature monitoring, and charging status/charging end status indication. CXLB73242 adopts a heat dissipation enhanced 8-pin DFN package.
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[ CXLB73242 ]"
