It comes in the package of a Tape & Reel (TR). For convenience, it is included in the 8-SOIC (0.154, 3.90mm Width) package.Surface Mount is the mounting type of the device.The temperature should be set to -20°C~70°C TA to ensure reliable performance.An analog IC of POWER SUPPLY SUPPORT CIRCUIT is used in this device.To charge the device, Constant - Programmable current is required.Based on the base part number BQ2057, its related parts can be identified.It has 8 terminations.The device has a total of 8 pins.There are several programmable features, such as Current.In order to operate it, it has 8 pins.Currently, there are 1 channels available.Batteries with 5V should be able to power it.The device can withstand a supply voltage of 15V.It is possible to achieve high efficiency by using an output voltage of 4.2V.A 2A output current is used for operation.Devices in this category are classified as Power Management Circuits.This device can work at as low a voltage as possible, such as 4.5V.It is set to 4mA for Vsup (maximum supply voltage).There is a minimum input voltage of 4.5V volts.