CXLB73237 is a single cell lithium iron phosphate 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 current output capability of the input power supply. It is very suitable for charging lithium iron phosphate batteries powered by power sources with limited current output capabilities such as solar panels. CXLB73237 requires very few peripheral components and is very suitable for portable applications. The thermal modulation circuit can control the chip temperature at 132 ℃ when the power consumption of the device is relatively high or the ambient temperature is relatively highLeft and right to avoid excessive chip temperature. The charging current is set through an external resistor, and the minimum constant current charging current can be set as low as 3 milliamps, which is very suitable for charging applications of small capacity batteries. When the input voltage drops, CXLB73237 automatically enters low-power sleep mode, and the battery current is 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 indication. CXLB73237 adopts a 6-pin SOT23 package.
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[ CXLB73237 ]"
