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PDF XC6804 Data sheet ( Hoja de datos )
| Número de pieza | XC6804 | |
| Descripción | One Cell Li-ion/Li-polymer Linear Charger IC | |
| Fabricantes | Torex | |
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XC6804 Series
ETR25008-002
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(Under Development) 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
: 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
Package
: SOP-8FD, USP-6EL(Under Development)
Environmentally Friendly
: EU RoHS Compliant, Pb Free
■TYPICAL APPLICATION CIRCUIT
4.5 ～6 V
VIN
CIN
1µF
CSO
ISET
BAT
THIN
VSS
RISET
CL
1µF
Li-ion Battery
Protection
IC
Thermistor (NTC)
1/27
1 page  
■ ELECTRICAL CHARACTERISTICS
Unless otherwise stated, VIN=5.0V, VTHIN=1.0V, CIN=CL=1μF, Ta=25°C
PARAMETER
SYMBOL
CONDITION
Operating Voltage Range
Supply Current (*1)
Standby Current
VIN-VBAT 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
CC Charge Current (Min.) (*1)
CC Charge Current
CC Charge Current (Max.) (*1)
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
VIN
ISS
ISTB
VIBSD
VIBSDHYS
VUVLO
VUVLOHYS
VTRK
VTRKHYS
ITRKI
ITRK
ITRKA
VBAC
IBACI
IBAC
IBACA
IFINI
IFIN
IFINA
VCOV
ICOP
RON
ILEAK
IREV
IBATPD
VBAT = 3.5 V
VBAT = 4.3 V,
ISTB = IIN - ITHIN
VBAT = 4.1 V
RISET = 41.2 kΩ, VBAT = 2.4 V
RISET = 20 kΩ, VBAT = 2.4 V
RISET = 8.6 kΩ, VBAT = 2.4 V
IBAT = 60 mA
VTHIN = VTHIN_open x VT45 (*2)
RISET = 41.2 kΩ, VBAT = 3.1 V
RISET = 41.2 kΩ, VBAT = 3.1 V
VTHIN = VTHIN_open x VT10 (*3)
RISET = 20 kΩ, VBAT = 3.1 V
RISET = 20 kΩ, VBAT = 3.1 V
VTHIN = VTHIN_open x VT10 (*3)
RISET = 8.6 kΩ, VBAT = 3.1 V
RISET = 8.6 kΩ, VBAT = 3.1 V
VTHIN = VTHIN_open x VT10 (*3)
RISET = 41.2 kΩ
RISET = 20 kΩ
RISET = 8.6 kΩ
RISET = 2.8 kΩ
VIN = 4.1 V, IBAT = 200 mA
VIN = 6.0 V, VBAT = 0 V
VIN = 0 V, VBAT = 4.5 V
VIN = 5.0 V, VBAT = 4.3 V
Recharge Voltage (XC6804xxE)
VRCHG
(*1) Design target
(*2) Applicable only for the XC6804x4
(*3) Applicable only for the XC6804x3 and the XC6804x4
VTHIN = VTHIN_open x VT45 (*2)
MIN.
4.5
-
-
-
-
3.6
-
2.8
-
-
33.4
-
4.17
4.02
-
-
334
154
-
-
-
32
-
4.3
-
-
-
2.0
1.5
3.7
3.55
TYP.
5
110
60
40
60
3.8
200
2.9
100
20
38
80
4.2
4.05
200
92
380
175
800
368
20
45
80
4.45
1200
350
-
4.5
3.0
3.9
3.75
XC6804
Series
MAX.
6
-
-
-
-
4
-
3
-
-
42.6
-
4.23
4.08
-
-
426
196
-
-
-
58
-
4.6
-
550
1
9.0
7.0
4.1
3.95
UNIT
V
μA
CIRCUIT
-
①
μA ①
mV ②
mV ②
V②
mV ②
V②
mV ②
mA ②
mA ②
mA ②
V③
V③
mA ②
mA ②
mA ②
mA ②
mA ②
mA ②
mA ③
mA ③
mA ③
V②
mA ②
mΩ ③
μA ⑤
μA ⑥
μA ②
V②
V②
5/27
5 Page 
XC6804
Series
■OPERATIONAL EXPLANATION (Continued)
●Li-ion battery temperature monitoring function
The IC monitors the Li-ion battery temperature during charging by means of an NTC thermistor (“thermistor” below) connected to the
THIN pin. The charge voltage VBAC and the charge current IBAT are controlled based on the Li-ion battery temperature as shown below to
enable safe charging. The charge state changes 50 ms after the Li ion battery temperature reaches each of the change points.
IBAT = ICHG
IBAT = 0.5 × ICHG
Cold
Operation
Normal Operation
Hot
Operation
0 °C
10 °C
45 °C
60 °C
Charge Current vs. Thermistor Temperature
VBAC = 4.2V
Cold
Operation
Normal Operation
VBAC = 4.05V
Hot
Operation
0 °C
10 °C
45 °C
60 °C
Charge Voltage vs. Thermistor Temperature
● XC6804x4 (4 temperatures monitoring)
Cold Operation
When 0°C < NTC Temperature ≤ 10°C, the charge current is limited to ICHG × 0.5. (*1)
When NTC Temperature ≤ 0°C, charging stops. (*2)
Normal Operation
When 10°C < NTC Temperature < 45°C, charging takes place with the charge current ICHG and the charge voltage at 4.2 V. (*1)
Hot Operation
When 45°C ≤ NTC Temperature < 60°C, the charge voltage changes to 4.05 V and charging continues. (*1)
When 60°C ≤ Thermistor Temperature, charging stops. (*2)
● XC6804x3 (3 temperatures monitoring)
Comparing to the XC6804x4, the XC6804x3 does not monitor at 60°C and charging stops at 45°C ≤ Thermistor Temperature. (*2)
● XC6804x2 (2 temperatures monitoring)
In contrast to the XC6804x4, the XC6804x2 does not have 10°C and 60°C monitoring, and stops charging when Thermistor Temperature
≤ 0°C and when Thermistor Temperature ≥ 45°C. (*2)
In addition, when 0°C< Thermistor Temperature ≤ 10°C, the charge current does not change from ICHG.(*1)
(*1) During trickle charging, the charge current is limited to ICHG × 0.1.
(*2) Even when charging is stopped, tTRK count and tCHG count are continued and the charge status output pin maintains the ON state.
The thermistor temperature detection of this IC conforms to the characteristics of the NCP15XH103F03RC of Murata Manufacturing Co., Ltd.
11/27
11 Page | ||
| Páginas | Total 27 Páginas | |
| PDF Descargar | [ Datasheet XC6804.PDF ] | |
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