High-performance linear lithium battery charge management chip CN3052A / CN3052B / CN3056, these devices integrate power tube, do not need external current sense resistor and blocking diode, only need few peripheral components, and comply with USB bus technical specifications It can charge the lithium battery through the USB port, so it is very suitable for various chargers and MP4 players, Bluetooth headsets, digital cameras, and other portable products Pin arrangement CN3052A / CN3052B CN3056 main function introduction Power Supply Low Voltage Detection (UVLO) CN3052A / CN3052B CN3056 has a power supply voltage detection circuit.