There is a package for Tape & Reel (TR) in which it can be found.It is contained in a package named 16-VQFN Exposed Pad.The device's mounting type is Surface Mount.This is the right thing to do: set the temperature to -20°C~70°C TA.In order for the device to function, an analog IC named POWER SUPPLY SUPPORT CIRCUIT must be used.The device requires Constant - Programmable current to charge.This part number ISL6297 can be used to find its related parts.As you can see, it has 16 terminations in it.4.2V is the voltage for the battery pack.Features such as Timer are programmable.When charging current is maximum, it is rated at 1.1A.There are a total of 1 channels available for use in this application.In general, it is recommended to use devices with 6.5V maximum supply voltages.If it runs off of a 5V battery, then it should be able to run continuously.
ISL6297CR-T Features
Battery pack voltage of 4.2V 1 channels 16-VQFN Exposed Pad package
ISL6297CR-T Applications
There are a lot of Renesas Electronics America Inc. ISL6297CR-T Battery Chargers ICs applications.