Cxlb7214b cxlb7215 cxlb7216 is a single lithium battery charging management chip that can be powered by solar panels. The inner part of the device includes a power transistor, and no external current detection resistor and resistance diode are needed for application. The internal 8-bit analog-to-digital conversion circuit can automatically adjust the charging current according to the current output capacity of the input voltage source. The user does not need to consider the worst case, and can maximize the current output capacity of the input voltage source, which is very suitable for the charging application of lithium battery powered by the voltage source with limited current output capacity such as solar panel. Cxlb7214b cxlb7215 cxlb7216 only needs a few peripheral components and conforms to the USB bus technical specifications, which is very suitable for the field of portable applications. Thermal modulation
The circuit can control the chip temperature within the safe range when the power consumption of the device is large or the ambient temperature is high. The internal fixed constant voltage charging voltage is 4.2V, which can also be adjusted by an external resistance. The charging current is set by an external resistance. When the input voltage is powered down, the cxlb7214b cxlb7215 cxlb7216 automatically enters the sleep of low power consumption
Sleep mode, when the battery current consumption is less than 3 microamps.