This part is a kind of semiconductor called AD7280.

Function of this product has Lithium Ion Battery Monitoring System.

Manufacturers : Analog Devices

Image and pinout :

Some of the text within the PDF file :

Preliminary Technical Data FEATURES 12-bit ADC, 1us per channel conversion time 6 Analog Input Channels, CM range 0.5V to 27.5V 6 Temperature Measurements Inputs. On Chip Voltage Regulator Cell Balancing Interface Daisy Chain Interface 3 ppm Reference Low Quiescent Current High Input Impedance Serial Interface with Alert Function 1 SPI interface for up to 300 channels On Chip Registers for Channel Sequencing VDD Operating Range 7.5V to 30V Temperature Range -40 oC to 105oC 48 lead LQFP and LFCSP Packages Lithium Ion Battery Monitoring System AD7280 FUNCTIONAL BLOCK DIAGRAM V DD SCLKhi SDINhi SDOUThi ALERThi CShi PDhi CNVSThi CB1 CB6 AD7280 Vin(6) Vin(5) Vin(4) Vin(3) Vin(2) Vin(1) Vin(0) MUX + - DAIS Y CHAIN INTER FACE CEL L BALANCING INTER FACE REGUL ATOR VREG DGN [ ... ]

AD7280 PDF Datasheet Download