CXLB73237 is a single lithium iron phosphate battery charging management chip that can be powered by solar energy. The device includes a power transistor inside, which does not require external current detection resistor and blocking diode. 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, and can make maximum use of the current output capability of the input power supply, it is very suitable for lithium iron phosphate battery charging applications powered by power sources with limited current output capabilities such as solar panels. CXLB73237 requires only a few peripheral components, which is very suitable for portable applications. The thermal modulation circuit can control the chip temperature to 132℃ when the power consumption of the device is relatively large or the ambient temperature is relatively high.
Left and right to avoid excessive chip temperature. The charging current is set by an external resistor, and the minimum constant current charging current can be set as low as 3 mA, which is very suitable for charging applications of small capacity batteries. When the input voltage is powered down, CXLB73237 automatically enters the sleep mode with low power consumption. At this time, the battery current is less than 3 microamperes. Other functions include low input voltage latching, automatic recharging, battery temperature monitoring conforming to JEITA standard, charging current overcurrent protection, and charging status indication. CXLB73237 is packaged with 6-pin sot23.
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[ CXLB73237 ]"
