XC6803
Series
■GENERAL
DESCRIPTION
ETR25005-001
One Cell Li-ion/Li-polymer Linear Charger IC with Battery Temperature Detection
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
●Wearable
Device
●Fitness
Tracker
●MP3
Player, Portable Audio Player
●IC
recorder
●Bluetooth
Headset
●GPS
Watch, Smart Watch
■FEATURES
JEITA conforming Thermistor Detect Function Built-in
Operating Voltage Range
Supply Current
CC Charge Current
CV Charge Voltage
Protection Circuit
: 4 .5V ~ 6V
: TYP. 100μA
: 40mA ~ 280mA Can be set by external resistance
: 4.2V, 4.05V (at high temperature) Internally fixed
: 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 : - 40°C ~ +85°C
Package
Environmentally Friendly
: USP-6EL
: EU RoHS Compliant, Pb Free
■TYPICAL
APPLICATION CIRCUIT
CSO
V
IN
I
SET
BAT
C
IN
1µF
V
SS
Thermistor (NTC)
THIN
C
L
1µF
Protection
IC
R
ISET
Li-ion Battery
4.5
½
6 V
1/25
XC6803 Series
■BLOCK
DIAGRAM
V
IN
VREF
UVLO
Standby
-
CV
+
+
+
VIN-BAT
disconnect
controller
VREF
Voltage
Reference
-
CC
-
VREF
I
SET
BAT
VREF
VREF
Oscillator
Timer
Detect I
FIN
RTHIN
-
+
-
+
-
+
-
+
-
+
+
-
Battery Detect
Detect V
TRK
Detect Temperature at 0℃.
Detect Temperature at 10℃.
Control &
Delay
VREF
+
-
THIN
VREF
Detect V
COV
+
-
VREF
Detect Temperature at 45℃.
Detect V
RCH
Detect Temperature at 60℃.
+
-
VREF
CSO
Thermal
Shutdown
V
SS
■
PRODUCT CLASSIFICATION
XC6803①②③④⑤⑥-⑦
DESIGNATOR
①
(*1)
DESCRIPTION
Charge Status Output on Abnormal Mode
SYMBOL
A
B
2
DESCRIPTION
1kHz ON-OFF
OFF
2 Temperature Monitor
3 Temperature Monitor
4 Temperature Monitor
Enable
Disable
4.2V (Fixed)
USP-6EL (3,000pcs/Reel)
②
Battery Temperature Monitor Function
3
4
E
D
1
4R-G
③
④
⑤⑥-⑦
(*1)
(*1)
Recharge Function
CV Charge Voltage
Package (Order Unit)
The “-G” suffix indicates that the products are Halogen and Antimony free as well as being fully EU RoHS compliant.
2/25
XC6803
Series
■PIN
CONFIGURATION
V
IN
6
THIN 5
I
SET
4
1 BAT
2 V
SS
3 CSO
USP-6EL
(BOTTOM VIEW)
*The dissipation pad should be solder-plated in recommended mount pattern and metal masking so as to enhance
mounting strength and heat release.
When taking out a potential of the heat-sink, connect with V
SS
pin (#2 pin).
■PIN
ASSIGNMENT
PIN NUMBER
USP-6EL
1
2
3
4
5
6
Back Metal
PIN NAME
BAT
V
SS
CSO
I
SET
THIN
V
IN
FUNCTION
Charge Current Output
Ground
Charge Status Output
Charge Current Setup
Temperature Detection
Power Supply Input
Internally Connected V
SS
■
ABSOLUTE MAXIMUM RATINGS
Ta = 25 °C
PARAMETER
V
IN
Pin Voltage
BAT Pin Voltage
CSO Pin Voltage
THIN Pin Voltage
I
SET
Pin Voltage
BAT Pin Current
Power Dissipation
USP-6EL
SYMBOL
V
IN
V
BAT
V
CSO
V
THIN
V
ISET
I
BAT
Pd
T
opr
T
stg
RATING
-0.3 ~ +6.5
-0.3 ~ +6.5
-0.3 ~ +6.5
-0.3 ~ V
IN
+0.3 or +6.5
1000
120
750 (PCB mounted)
-40 ~ +85
-55 ~ +125
mW
°C
°C
(*1)
UNIT
V
V
V
V
V
mA
-0.3 ~ V
IN
+0.3 or +6.5
(*1)
Operating Ambient Temperature
Storage Temperature
Each rating voltage is based on the V
SS
.
(*1)
Either of lower one, V
IN
+0.3 or +6.5, is applicable.
3/25
XC6803 Series
■ELECTRICAL
CHARACTERISTICS
Unless otherwise stated, V
IN
=5.0V, V
THIN
=1.0V, R
ISET
=100kΩ, C
IN
=C
L
=1μF, Ta=25°C
PARAMETER
Operating Voltage Range
Supply Current
(*1)
Standby Current
V
IN
- V
BAT
Shut-down Voltage
Shut-down Hysteresis Voltage
(*1)
UVLO Voltage
UVLO Hysteresis Voltage
(*1)
Trickle Charge Voltage
Trickle Charge Hysteresis Voltage
(*1)
Trickle Charge Current (Min.)
(*1)
Trickle Charge Current
Trickle Charge Current (Max.)
(*1)
SYMBOL
V
IN
I
SS
I
STB
V
IBSD
V
IBSDHYS
V
UVLO
V
UVLOHYS
V
TRK
V
TRKHYS
I
TRKI
I
TRK
I
TRKA
R
ISET
=100kΩ, V
BAT
=2.4V
R
ISET
=20kΩ, V
BAT
=2.4V
R
ISET
=11kΩ, V
BAT
=2.4V
I
BAT
=20mA
CV Charge Voltage
V
BAC
I
BAT
=20mA
V
THIN
=V
THIN_open
x V
T45 (*2)
R
ISET
=100kΩ, V
BAT
=3.1V
CC Charge Current (Min.)
(*1)
CONDITION
MIN.
4.5
TYP.
5
100
60
V
BAT
+40
60
MAX.
6
-
-
-
UNIT
V
μA
μA
mV
mV
CIRCUIT
-
-
①
②
②
②
②
②
②
②
②
②
③
③
②
②
②
②
②
②
③
③
③
②
③
③
⑤
⑥
②
②
②
V
BAT
=3.5V
V
BAT
=4.3V,
I
STB
=I
IN
- I
THIN
V
BAT
=4.1 V
-
-
-
3.6
-
2.8
-
-
13
-
4.17
4.02
-
-
150
66
-
-
-
12
-
4.3
R
ISET
=3kΩ
V
IN
=4.1V, R
ISET
=11kΩ
I
BAT
=200mA
V
IN
=6.0V, V
BAT
=0V
V
BAT
=4.5V, V
IN
=0V
V
BAT
=4.3V
-
-
-
-
-
3.7
V
THIN
=V
THIN_open
x V
T45 (*2)
3.55
3.8
200
2.9
100
4
16
28
4.2
4.05
40
19.1
166
78
280
131
4.4
20
32
4.45
600
350
-
0.5
3
3.9
3.75
4
-
3
-
-
20
-
4.23
4.08
-
-
188
93
-
-
-
30
-
4.6
-
550
1
1.4-
-
4.1
3.95
V
mV
V
mV
mA
mA
mA
V
V
mA
mA
mA
mA
mA
mA
mA
mA
mA
V
mA
mΩ
μA
μA
μA
V
V
I
BACI
R
ISET
=100kΩ, V
BAT
=3.1V
V
THIN
=V
THIN_open
x V
T10 (*3)
R
ISET
=20kΩ, V
BAT
=3.1V
CC Charge Current
I
BAC
R
ISET
=20kΩ, V
BAT
=3.1V
V
THIN
=V
THIN_open
x V
T10 (*3)
R
ISET
=11kΩ, V
BAT
=3.1V
CC Charge Current (Max.)
(*1)
I
BACA
R
I S E T
=11kΩ, V
B A T
=3.1V
V
THIN
=V
THIN_open
x V
T10 (*3)
R
ISET
=100kΩ
R
ISET
=20kΩ
R
ISET
=11kΩ
Charge Completion Current (Min)
(*1)
Charge Completion Current
Charge Completion Current (Max)
(*1)
Over Voltage Protection Threshold
Over Current Protection Threshold
Driver ON Resistance
Driver Leakage Current
BAT Pin Reverse Current
BAT Pin Pull-down Current
Recharge Voltage (XC6803xxE)
(*1)
I
FINI
I
FIN
I
FINA
V
COV
I
COP
R
ON
I
LEAK
I
REV
I
BATPD
V
RCHG
Design target
Applicable only to XC6803x4
Applicable only to XC6803x3 and XC6803x4
(*2)
(*3)
4/25
XC6803
Series
■
ELECTRICAL CHARACTERISTICS (Continued)
Unless otherwise stated, V
IN
=5.0V, V
THIN
=1.0V, R
ISET
=100kΩ, C
IN
=C
L
=1μF, Ta=25 °C
PARAMETER
THIN Pin Open Voltage
Battery Connect Detection
Battery Connect Detection Hysteresis
(*1)
Thermistor Detection at 0°C
Thermistor Detection Hysteresis at 0°C
(*1)
Thermistor Detection at 10°C
(*3)
Thermistor Detection Hysteresis at 10°C
(*1) (*3)
Thermistor Detection at 45°C
Thermistor Detection Hysteresis at 45°C
(*1)
Thermistor Detection at 60°C
(*4)
Thermistor Detection Hysteresis at 60°C
(*1) (*4)
THIN Pin Connected Resistance
Trickle Charge Hold Time
Main Charge Hold Time
CSO Pin OFF Current
CSO Pin ON Voltage
Thermal Shut-Down Detection Temperature
(*1)
CSO Frequency (XC6803A)
(*1)
(*2)
SYMBOL
V
THIN_open
V
TD
V
TDH
V
T0
V
T0H
V
T10
V
T10H
V
T45
V
T45H
V
T60
V
T60H
R
THIN
t
TRK
t
CHG
I
CSOOFF
V
CSO
T
TSD
f
CSO
CONDITION
MIN.
1.94
77
TYP.
2.0
80
3
73.13
2.18
64.19
2.38
32.96
1.94
23.16
1.47
10
0.5
5
-
-
140
1
MAX.
2.06
83
-
75.13
-
66.19
-
34.96
-
25.16
-
10.2
-
-
1
0.5
-
1.25
UNIT
V
%
(*2)
%
(*2)
%
(*2)
%
(*2)
%
(*2)
%
(*2)
%
(*2)
%
(*2)
%
(*2)
%
(*2)
kΩ
hr
hr
μA
V
°C
kHz
CIRCUIT
⑤
②
②
②
②
②
②
②
②
②
②
①
②
②
⑦
④
②
②
At temperature fall
-
71.13
At temperature rise
-
62.19
At temperature rise
-
30.96
At temperature fall
-
21.16
At temperature fall
V
THIN
=0V
-
9.8
-
-
V
CSO
=6.0V
I
CSO
=10mA
-
-
-
0.75
Design target
The comparator detect voltage and hysteresis width are indicated as percentages of the THIN pin open voltage, V
THIN_open
, (taken to be100%).
V
Txx
= V
Txx’
/ V
THIN_open
(V
Txx’
: Voltage when the external voltage applied to the THIN pin sweeps and the IC internal comparator inverts)
(*3)
(*4)
Applicable only to XC6803x3 and XC6803x4
Applicable only to XC6803x4
5/25
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