I am sharing this because may someone needs it like me.
THIS IS MAX8934G
Key Features Applications/Uses
Li+ Charger with Smart Power Selector, No External MOSFETs Needed
Monitors Battery Temperature and Adjusts Charge Current and Termination Voltage Automatically per JEITA Recommendations
Active-Low OT Flags System of a Hot Battery During Discharge
Ultra-Low IQ, Always-On 3.3V LDO
Common or Separate USB and Adapter Inputs
Automatic Adapter/USB/Battery Switchover
Load Peaks in Excess of Adapter Rating are Supported by Battery
Input OVP to 16V (DC) and 9V (USB)
40mΩ SYS-to-BATT Switch
Thermal Regulation Prevents Overheating
4.35V SYS Regulation Voltage
THIS SITE HAVE A CİRCUIT BUILD ON MAX 1811 AND IT IS FOR SPECIALLY LI-POLY BATTERY CHARGING
USB Single Cell LiPoly Charger
AND IF YOU WRITE ''USB powered AA charger schematic'' THERE ARE A SCHEMATIC FOR TWO AA SİZE BATTERY CHARGER TAKING POWER FROM USB BUT NOT ADEQUATE FOR 3.7 V IT NEEDS SOME MODIFICATION