XC6804
Series
■GENERAL
DESCRIPTION
ETR25008-005
One Cell Li-ion/Li-polymer Linear Charger IC with Battery Temperature Detection
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.
■APPLICATIONS
●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
Supply Current
CC Charge Current
CV Charge Voltage
Protection Circuit
: 4.5V ~ 6V
: TYP. 100μA
: 200mA ~ 800mA Can be set by external resistance
: 4.2V, 4.05V (at high temperature) Internally fixed
: 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
Packages
Environmentally Friendly
: -40°C ~ +85°C
: SOP-8FD, 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
1/27
XC6804 Series
■BLOCK
DIAGRAM
V
IN
VREF
UVLO
Standby
-
VIN-BAT
disconnect
controller
CV
+
+
+
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
XC6804①②③④⑤⑥-⑦
(*1)
DESIGNATOR
①
DESCRIPTION
Charge Status Output on Abnormal Mode
SYMBOL
A
B
2
②
Battery Temperature Monitor Function
3
4
③
④
⑤⑥-⑦
(*1)
DESCRIPTION
1 kHz ON-OFF
OFF
2 Temperature Monitor
3 Temperature Monitor
4 Temperature Monitor
Enable
Disable
4.2 V (Fixed)
SOP-8FD (1,000pcs/Reel)
USP-6EL (3,000pcs/Reel)
Recharge Function
CV Charge Voltage
Packages (Order Unit)
E
D
1
QR-G
4R-G
The “-G” suffix denotes Halogen and Antimony free as well as being fully EU RoHS compliant.
2/27
XC6804
Series
■PIN
CONFIGURATION
BAT 1
NC 2
V
SS
3
CSO 4
SOP-8FD
(TOP VIEW)
8 V
IN
V
IN
6
7 NC
THIN 5
6 THIN
5 I
SET
I
SET
4
3 CSO
2 V
SS
1 BAT
USP-6EL
(BOTTOM VIEW)
*To increase mounting strength and heat dissipation of the USP-6EL, it is recommended that the heat sink be mounted by soldering using the
reference pattern layout and reference metal mask. To use the electric potential of the heat sink, connect to the V
SS
pin (Pin # 2).
*To increase mounting strength and heat dissipation of the SOP-8FD, it is recommended that the heat sink be mounted by soldering using the
reference pattern layout and reference metal mask. To use the electric potential of the heat sink, connect to the V
SS
pin (Pin # 3).
■
PIN ASSIGNMENT
PIN NUMBER
SOP-8FD
1
3
4
5
6
8
-
2, 7
USP-6EL
1
2
3
4
5
6
Back Metal
-
PIN NAME
BAT
V
SS
CSO
I
SET
THIN
V
IN
-
NC
FUNCTIONS
Charge Current Output
Ground
Charge Status Output
Charge Current Setup
Temperature Detection
Power Supply Input
Internally Connected V
SS
Non connect Pin
3/27
XC6804 Series
■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
SOP-8FD
Power Dissipation
USP-6EL
Operating Ambient Temperature
Storage Temperature
Each rating voltage is based on the Vss.
(*1)
SYMBOL
V
IN
V
BAT
V
CSO
V
THIN
V
ISET
I
BAT
Pd
RATING
-0.3 ~ +6.5
-0.3 ~ +6.5
-0.3 ~ +6.5
-0.3 ~ V
IN
+0.3 or +6.5
1600
300
1500 (PCB mounted)
120
750 (PCB mounted)
-40 ~ +85
-55 ~ +125
(*1)
UNIT
V
V
V
V
V
mA
-0.3 ~ V
IN
+0.3 or +6.5
(*1)
mW
Pd
T
opr
T
stg
°C
°C
Either of lower one, V
IN
+0.3 or +6.5, is applicable.
4/27
XC6804
Series
■
ELECTRICAL CHARACTERISTICS
Unless otherwise stated, V
IN
=5.0V, V
THIN
=1.0V, 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)
CV Charge Voltage
SYMBO
L
V
IN
I
SS
I
STB
V
IBSD
V
IBSDHYS
V
UVLO
V
UVLOHYS
V
TRK
V
TRKHYS
I
TRKI
I
TRK
I
TRKA
V
BAC
R
ISET
= 41.2 kΩ, V
BAT
= 2.4 V
R
ISET
= 20 kΩ, V
BAT
= 2.4 V
R
ISET
= 8.87 kΩ, V
BAT
= 2.4 V
I
BAT
= 60 mA
V
THIN
= V
THIN_open
x V
T45 (*2)
R
ISET
= 41.2 kΩ, V
BAT
= 3.1 V
CC Charge Current (Min.)
(*1)
I
BACI
R
ISET
= 41.2 kΩ, V
BAT
= 3.1 V
V
THIN
= V
THIN_open
x V
T10 (*3)
R
ISET
= 20 kΩ, V
BAT
= 3.1 V
CC Charge Current
I
BAC
R
ISET
= 20 kΩ, V
BAT
= 3.1 V
V
THIN
= V
THIN_open
x V
T10 (*3)
R
ISET
= 8.87 kΩ, V
BAT
= 3.1 V
CC Charge Current (Max.)
(*1)
CONDITION
MIN.
4.5
TYP.
5
110
60
40
60
3.8
200
2.9
100
21
41
85
4.2
4.05
200
92
382
176
800
368
20
47
98
4.45
1200
350
-
4.5
3.0
3.9
3.75
MAX.
6
-
-
-
-
4
-
3
-
-
50
-
4.23
4.08
-
-
438
203
-
-
-
62
-
4.6
-
550
1
9.0
7.0
4.1
3.95
UNIT
V
μA
μA
mV
mV
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
CIRCUIT
-
①
①
②
②
②
②
②
②
②
②
②
③
③
②
②
②
②
②
②
③
③
③
②
②
③
⑤
⑥
②
②
②
V
BAT
= 3.5 V
V
BAT
= 4.3 V,
I
STB
= I
IN
- I
THIN
V
BAT
= 4.1 V
-
-
-
-
3.6
-
2.8
-
-
28.5
-
4.17
4.02
-
-
325
152
-
-
-
32
-
4.3
I
BACA
R
ISET
= 8.87 kΩ, V
BAT
= 3.1 V
V
THIN
= V
THIN_open
x V
T10 (*3)
R
ISET
= 41.2 kΩ
R
ISET
= 20 kΩ
R
ISET
= 8.87 kΩ
Charge Completion Current (Min)
(*1)
Charge Completion Current
Charge Completion Current (Max)
(*1)
Over Voltage Protection Threshold
Over Current Protection Threshold
(*1)
Driver ON Resistance
Driver Leakage Current
BAT Pin Reverse Current
BAT Pin Pull-down Current
Recharge Voltage (XC6804xxE)
(*1)
(*2)
(*3)
I
FINI
I
FIN
I
FINA
V
COV
I
COP
R
ON
I
LEAK
I
REV
I
BATPD
V
RCHG
R
ISET
= 2.8 kΩ
V
IN
= 4.1 V, I
BAT
= 200 mA
V
IN
= 6.0 V, V
BAT
= 0 V
V
IN
= 0 V, V
BAT
= 4.5 V
V
IN
= 5.0 V, V
BAT
= 4.3 V
-
-
-
2.0
1.5
3.7
V
THIN
= V
THIN_open
x V
T45 (*2)
3.55
Design target
Applicable only for the XC6804x4
Applicable only for the XC6804x3 and the XC6804x4
5/27
PCB设计
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
