PS334

www.DataSheet4U.com Preliminary PS334 Li Ion Smart Battery Manager Features Pin Description Performs all major Li Ion battery 28 management functions including INPUT VDSS 1 EE-SCK SMB-CLK 27 2 - Accurate capacity monitoring 26 EE-CS SMB-DTA 3 - Direct control of external charge VREFT OUTPUT1 4 PS334 25 circuitry (e.g. PWM) 24 VNTC OUTPUT2 5 - Direct control of secondary safety 23 VCELL1 OUTPUT3 6 22 VASS1 OUTPUT4 7 functions 21 VCELL2 OUTPUT5 8 Six independently programmable output 20 VCELL3 VDDD 9 pins can be assigned as SOC LED outputs, 19 VCELL4 OUTPUT6 10 18 VADD EE-SI/SO direct charge control, or additional levels 11 17 VSHP OSCIN 12 of safety control 16 VSHM OSCOUT 13 Fully compliant with industry standard VASS2 VREG 15 14 Smart Battery Data Specification V1.1a 0.209 mil SSOP - SMBus V1.1 with PEC / CRC-8 28-PIN Package communication with system host High accuracy measurement of charge / Pin Summary discharge current, voltage, and Pin Name Function temperature with on-chip 14-bit integrating Input LED Switch Input A/D EE-SCK, EE-CS, SPI Serial EEPROM Precise capacity reporting for all lithiumEE-SI/SO Interface based chemistries using PowerSmart VREFT Reference Voltage patented algorithms and 3D battery cell Output DataSheet4U.com models VNTC Temperature A/D Input VCELL1-4 Single Cell Voltage 3D models and “learned” parameters Inputs stored in external EEPROM; fully field reVASS1, VADD, Analog Supply Voltage programmable via SMBus interface VASS2 Inputs S...