XC6804 Series ETR25008-004 One Cell Li-ion/Li-polymer Linear Charger IC with Battery Temperature Detection GENERAL DESCRIPTION The XC6804 is a Constant-Voltage (CV) and Constant-Current (CC) type charging IC for linear charging of single-cell Li-ion batteries and Li-polymer batteries. The basic charging cycle consists of trickle charge mode followed by main charge mode. This IC supports temperature control based on JEITA, making it possible to safely charge Li-ion batteries and Li-polymer batteries by controlling the CV charge voltage and CC charge current according to the temperature. By connecting a resistor to the charge status output pin, it is possible to check the charge condition via the charge status output (CSO) pin voltage. The IC is housed in the small SOP-8FD or USP-6EL package with high heat dissipation, and a charge circuit can be configured using a minimum of external components. FEATURES APPLICATIONS JEITA conforming Thermistor Detect Function Built-in Health care devices Operating Voltage Range : 4.5V ~ 6V Power banks Supply Current : TYP. 100A Portable audio players CC Charge Current : 200mA ~ 800mA Can be set by external resistance Bluetooth headsets CV Charge Voltage : 4.2V, 4.05V (at high temperature) Internally fixed Portable navigation devices Protection Circuit : Thermistor detection function Digital still cameras Safety timer function UVLO (Under Voltage Lockout) Thermal shutdown (Auto recovery) Dropout voltage monitor function Charging over-voltage monitor function Charging over-current monitor function Recharge function (XC6804xxE) Operating Ambient Temperature : -40C ~ +85C Packages : SOP-8FD, USP-6EL Environmentally Friendly : EU RoHS Compliant, Pb Free TYPICAL APPLICATION CIRCUIT CSO R ISET V IN I SET Li-ion Battery BAT C L C IN Protection 1F 1F THIN 6 V 4.5 IC V SS Thermistor (NTC) 1/27 XC6804 Series BLOCK DIAGRAM V IN VREF - VIN-BAT CV disconnect controller + UVLO + + - VREF CC Standby - VREF I SET Voltage Reference BAT VREF VREF Oscillator Timer + Detect I FIN VREF - - Battery Detect RTHIN + + Detect V THIN TRK - - VREF Detect Temperature at 0. + Control & - Detect Temperature at 10. + Detect V Delay COV VREF + - - Detect Temperature at 45. + + Detect VRCH - Detect Temperature at 60. - VREF + CSO Thermal Shutdown V SS PRODUCT CLASSIFICATION (*1) XC6804- DESIGNATOR DESCRIPTION SYMBOL DESCRIPTION A 1 kHz ON-OFF Charge Status Output on Abnormal Mode B OFF 2 2 Temperature Monitor Battery Temperature Monitor Function 3 3 Temperature Monitor 4 4 Temperature Monitor E Enable Recharge Function D Disable CV Charge Voltage 1 4.2 V (Fixed) QR-G SOP-8FD (1,000pcs/Reel) - Packages (Order Unit) 4R-G USP-6EL (3,000pcs/Reel) (*1) The -G suffix denotes Halogen and Antimony free as well as being fully EU RoHS compliant. 2/27