I found it in the Tape & Reel (TR) package, which comes with everything you need.The package 72-WFBGA, WLBGA includes a version of it.A Surface Mount mounting type is assigned to the device.If the temperature is set to -40°C~85°C TA, reliable performance will be assured.A analog IC of POWER SUPPLY MANAGEMENT CIRCUIT has been used in the design of this device.Device charging requires Constant - Programmable current.The base part number MAX77818 represents its related parts.As far as the terminations are concerned, there are 72.This battery pack has a voltage of 4.2V.You need 72 pins for it to work.Channels are available in a total of 1.Using a 3.7V battery should be enough to run it.As long as the supply voltage is 5V, it is capable of withstanding the voltage.There is a constant output current of 3A when it is operating.It is mounted in the manner of Surface Mount.If the supply voltage (Vsup) is kept above 2.8V, the device will be able to operate normally.
MAX77818EWZ+T Features
Battery pack voltage of 4.2V 1 channels 72-WFBGA, WLBGA package
MAX77818EWZ+T Applications
There are a lot of Maxim Integrated MAX77818EWZ+T Battery Chargers ICs applications.