XT2052Y2ASR =2SES01NG SOP8

 General Description
The XT2052 is a constant- current / constant- voltage
charger circuit for single cell lithium-ion batteries. The
device includes an internal power transistor, does not need
external current sense resistor and blocking diode in
applications. XT2052 requires minimal external
components, and meet the USB bus specification, is very
suitable for portable applications in the field.
Thermal modulation circuit can control the internal chip temperature in a safe range when the device power dissipation be relatively large or the ambient temperature be higher.
When the input voltage (AC adapter or USB power supply) power is lost, XT2052 automatically enters a low power sleep mode, then the battery current consumption is less than 0.1μA. Built-in protection circuits against irrigation, when the battery voltage is higher than the input voltage, automatically turn off built-in power MOSFET. Other features include low input voltage latch, automatic recharge, the battery temperature monitoring, and charge
status / charge status indication functions. XT2052 uses