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XC6804 Series
One Cell Li-ion/Li-polymer Linear Charger IC with Battery Temperature Detection
V
IN
V
SS
BAT
THIN
4.5
～
V
Li-ion Battery
Protection
IC
C
L
1µF
Thermistor (NTC)
C
IN
1µF
CSO
I
SET
R
ISET
6
■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.
■
PPLICATIONS
●Health care devices
●Power banks
●Portable audio players
●Bluetooth headsets
●Portable navigation devices
●Digital still cameras
■FEATURES
JEITA conforming Thermistor Detect Function Built-in
Operating Voltage Range : 4.5V ~ 6V
Supply Current : TYP. 100μA
CC Charge Current : 200mA ~ 800mA Can be set by external resistance
CV Charge Voltage : 4.2V, 4.05V (at high temperature) Internally fixed
Protection Circuit : Thermistor detection function
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 : -40°C ~ +85°C
Packages : SOP-8FD, USP-6EL
Environmentally Friendly : EU RoHS Compliant, Pb Free
■TYPICAL APPLICATION CIRCUIT
ETR25008-004
