XC6803 Series ETR25005-001 One Cell Li-ion/Li-polymer Linear Charger IC with Battery Temperature Detection GENERAL DESCRIPTION The XC6803 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 USP-6EL package with high heat dissipation, and a charge circuit can be configured using a minimum of external components. APPLICATIONS FEATURES Wearable Device JEITA conforming Thermistor Detect Function Built-in Fitness Tracker Operating Voltage Range : 4 .5V ~ 6V MP3 Player, Portable Audio Player Supply Current : TYP. 100A IC recorder CC Charge Current : 40mA ~ 280mA Can be set by external resistance Bluetooth Headset CV Charge Voltage : 4.2V, 4.05V (at high temperature) Internally fixed GPS Watch, Smart Watch Protection Circuit : Thermistor detection function Safety timer function UVLO (Under Voltage Lock Out) Thermal shutdown Dropout voltage monitor function Charging over-voltage monitor function Charging over-current monitor function Recharge function (XC6803xxE) Operating Ambient Temperature : - 40C ~ +85C Package : 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 4.5 6 V IC V SS Thermistor (NTC) 1/25 XC6803 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 - - RTHIN Battery Detect + THIN + Detect VTRK VREF - - Detect Temperature at 0. + Control & - Detect Temperature at 10. + Detect V Delay COV VREF + - - Detect Temperature at 45. + + Detect V RCH - Detect Temperature at 60. - VREF + CSO Thermal Shutdown V SS PRODUCT CLASSIFICATION (*1) XC6803- DESIGNATOR DESCRIPTION SYMBOL DESCRIPTION A 1kHz 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 4.2V (Fixed) (*1) - Package (Order Unit) 4R-G USP-6EL (3,000pcs/Reel) (*1) The -G suffix indicates that the products are Halogen and Antimony free as well as being fully EU RoHS compliant. 2/25