XC6806C364DR-G [TOREX]
Power Supply Support Circuit,;
| 型号： | XC6806C364DR-G |
| 厂家： | 
Torex Semiconductor |
| 描述： | Power Supply Support Circuit, |
| 文件： | 总20页 (文件大小：660K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
ETR25009-002
Lithium-ion Linear Charger IC with Shutdown and Current Path Function
■GENERAL DESCRIPTION
Equipped with a system power supply function, the XC6806 is a linear charger IC for single-cell lithium ion batteries and lithium
polymer batteries. The current path function gives system power supply priority over charging the lithium ion battery. The charge
current can be adjusted with an external resistance, and an internal limit circuit with an input current of 450mA automatically
reduces the charging current based on the load current that flows to the system.
The lithium ion battery temperature is monitored in conformance with JEITA, and by controlling the charge voltage and charge
current as appropriate for the temperature, the battery can be charged safely. Internal protective functions include the charge
timer, UVLO, thermal control, and reverse current prevention.
Shutdown function completely shuts off power supply from the battery to the system to prevent battery leakage current while
the device is not in use, and this enables longer use of low supply current devices that operate using a small battery.
Charge status, connection status with USB can be confirmed with CSO terminal and PGB terminal.
The IC is mounted in the small, high heat dissipation USP-10B or LGA-10B01 package, and a charging circuit can be designed
with minimal external components.
■APPLICATIONS
●Wearable devices
●Bluetooth headsets
●Wireless earphone/Bluetooth earphone
●Hearing Aid
■FEATURES
Operating Voltage Range
Charge Voltage
: 4.5 ~ 5.5V
: 3.50V ~ 4.45V ± 30mV
: 10mA～385mA
Charge Current
Can be set by external resistance
●Health care devices
●IoT sensors
Input Current Limit
: 450mA, fixed internally
Battery Sink Current
Functions
0.1μA (Attached Battery only)
: Current Path
: JEITA Conforming Thermistor Detect
: Shutdown
Protection Function
: Charge Timer
: UVLO
: Thermal Control
: Reverse Current Prevention
: -40°C ～ +85°C
: USP-10B, LGA-10B01
: EU RoHS Compliant, Pb Free
Operating Ambient Temperature
Package
Environmentally Friendly
■TYPICAL APPLICATON CIRCUIT
VIN
OUT
CSO
PGB
COUT
10μF
Li-ion Battery
CIN
1μF
BAT
VREG
CBAT
1μF
Protection
IC
10kΩ
CREG
0.1μF
SD
THIN
ISET
Thermistor
(NTC)
VSS
RSET
1/20
XC6806 Series
■BLOCK DIAGRAM
Back Current
Protection
VIN
UVLO
OUT
Control
Logic
Battery Discharge
Control
Constant
Voltage
Constant
Current
Constant
Voltage
BAT
ISET
Thermal
Control
Recharge
Control
Logic
Constant
Voltage
Constant
Current
Trickle
Internal
Regulator
Control
Logic
VREG
Complete
THIN
Control
Logic
Battery
0 deg.C
Control
Logic
Control
Logic
SD
CSO
PGB
10 deg.C
45 deg.C
60 deg.C
Control
Logic
Each
Block
Control
Logic
Control Logic
Control
Logic
VSS
* The diodes above are electrostatic protection diodes and parasitic diodes.
■PRODUCT CLASSIFICATION
XC6806①②③④⑤⑥-⑦
DESIGNATOR
ITEM
TYPE
SYMBOL
DESCRIPTION
A
B
4 Temperature Monitor (JEITA Compliant)
3 Temperature Monitor (Semi-custom)
2 Temperature Monitor (Semi-custom)
3.50V~4.45V
①
C
②③④
Charge Voltage
350~445
DR-G
11-G
USP-10B (3000pcs/Reel)(*2)
(*1)
⑤⑥-⑦
Packages (Order Unit)
LGA-10B01 (5000pcs/Reel)
(*1) The “-G” suffix indicates that the products are Halogen and Antimony free as well as being fully EU RoHS compliant.
(*2) The reels are shipped in a moisture-proof packing. Please consult with your Torex sales contact.
2/20
XC6806
Series
■PIN CONFIGURATION
10
9
1
2
3
4
5
VIN
10
OUT
BAT
SD
OUT
BAT
SD
VIN
1
2
ISE T
ISE T
9
8
THIN
VREG
PGB
THIN
VREG
PGB
8
7
6
3
4
5
VSS
7
VSS
CSO
6
CSO
USP-10B
LGA-10B01
(BOTTOM VIEW)
(BOTTOM VIEW)
*The dissipation pad for the USP-10B package 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 VSS pin (#4 pin).
■PIN ASSIGNMENT
PIN NUMBER
PIN NAME
FUNCTIONS
USP-10B
LGA-10B01
1
2
10
9
OUT
BAT
SD
Output Power to The System
Battery Connection
3
8
Shutdown Control
4
7
VSS
Ground
5
6
CSO
PGB
VREG
THIN
ISET
Charge Status Output
Power Good Status Output
Internal Regulator Output
Temperature Detection
Charge Current Setup
Power Supply Input
6
5
7
4
8
3
9
2
10
1
VIN
■FUNCTION
PIN NAME
SIGNAL
STATUS
Shutdown Function
Rising Edge at UVLO Detect
(Turn off The Pch Driver between the OUT pin and the BAT pin)
SD
Other Signal
Keep The Actual Condition
ON (Low impedance)
OFF (High impedance)
ON (Low impedance)
OFF (High impedance)
1kHz Oscillation
Active (UVLO Release)
PGB
CSO
UVLO Detect
Trickle Charge, Main Charge
Charge Completion, Charger Disable
Abnormal Mode
XC6806 Series
■ABSOLUTE MAXIMUM RATING
Ta=25°C
UNITS
PARAMETER
SYMBOL
RATINGS
VIN Pin Voltage
OUT Pin Voltage
BAT Pin Voltage
VREG Pin Voltage
CSO Pin Voltage
PGB Pin Voltage
ISET Pin Voltage
THIN Pin Voltage
SD Pin Voltage
VIN
- 0.3 ～ 6.5
- 0.3 ～ 6.5
V
V
V
V
V
V
V
V
V
VOUT
VBAT
VREG
VCSO
VPGB
VISET
VTHIN
VSD
- 0.3 ～ 6.5
-0.3 ～ VIN + 0.3 or 6.5(*1)
- 0.3 ～ 6.5
- 0.3 ～ 6.5
-0.3 ～ OUT + 0.3 or 6.5 (*2)
- 0.3 ～ 6.5
- 0.3 ～ 6.5
Terminal Voltage between VIN and OUT
VDS
-5.5 ～ 5.5
V
Condition: VBAT≦2.3V
OUT Pin Current
BAT Pin Current
IOUT
IBAT
1000
mA
mA
500
150
USP-10B
Power Dissipation
Pd
1000 (40mm x 40mm Standard Board)(*3)
mW
３
)
LGA-10B01
Operating Ambient Temperature
Storage Temperature
1200 (40mm x 40mm Standard Board)(*
Topr
Tstg
-40 ～ +85
°C
°C
-55 ～ +125
Each rating voltage is based on the Vss.
(*1) Either of lower one, VIN+0.3V or 6.5V, is applicable.
(*2) Either of lower one, OUT+0.3V or 6.5V, is applicable.
(*3)
It is reference data on the power dissipation when mounting the board. Please see the power dissipation page for the mounting condition.
4/20
XC6806
Series
■ELECTRICAL CHARACTERISTICS
XC6806 Series
Unless otherwise stated, VIN=5V, CIN=CBAT=1μF, COUT=10μF, CREG=0.1μF, Ta=25°C
PARAMETER
SYMBOL
CONDITIONS
MIN.
TYP.
MAX.
UNITS CIRCUIT
Input Voltage
Supply Current (*1)
VIN
ISS
4.5
-
5.0
200
-
5.5
-
V
μA
V
-
VIN to VSS
①
①
①
①
①
①
①
①
SD Low Level Voltage
SD High Level Voltage
SD Pull-down Resistance
UVLO Threshold Voltage
UVLO Hysteresis Voltage (*1)
Input Current Limit
VSDL
VSDH
RSD
-
0.3
-
1.5
40
4.1
-
-
V
100
4.2
100
450
4.6
170
4.3
-
kΩ
V
VUVLO
VUVLOH
IINL
Rising
mV
mA
V
405
4.5
495
4.7
OUT Regulation Voltage
VOUT
IOUT=200mA, IBAT=0mA
IOUT=200mA,
OUT Regulation Voltage
VOCCR
3.85
3.95
4.05
V
①
on Charge Current Reduction
RSET=0.68kΩ
Trickle Charge Threshold Voltage
Trickle Charge Hysteresis Voltage(*1)
VTRK
Rising
2.8
-
2.9
3.0
-
V
①
①
VTRKH
100
mV
VCVT
-0.03
VCVT
VCVT
+0.03
VCVT
(*2)
Charge Voltage
VCV
IBAT=20mA
VCVT
V
V
①
VCVT
Charge Voltage on Hot Operation
VCVH
IBAT=20mA, Type A Only
①
-0.18
-0.15
VCV -0.1
or
-0.12
Recharge Threshold Voltage
VRC
-
-
V
①
V
CVH -0.1
1.5
Trickle Charge Current (Min.)
Trickle Charge Current (Max.)
Charge Current (Min.)
ITRKL
ITRKM
IBATL
IBATM
RSET=30kΩ
RSET=0.68kΩ
RSET=30kΩ
RSET=0.68kΩ
0.6
36
5
2.4
54
mA
mA
mA
mA
①
①
①
①
45
10
15
Charge Current (Max.)
340
385
430
RSET=30kΩ, Type A, B
Charge Current on Cold Operation (Min.)
Charge Current on Cold Operation (Max.)
IBATCL
3
6
9
mA
mA
①
①
Only
RSET=0.68kΩ, Type A, B
IBATCM
175
200
225
Only
Charge Completion Current (Min.)
Charge Completion Current (Max.)
ICOL
RSET=30kΩ
0.6
36
1.5
45
2.4
54
mA
mA
①
①
ICOM
RSET=0.68kΩ
Battery Discharge Threshold Voltage for
OUT Pin
VBD
-
VBAT-0.1
-
V
①
CSO, PGB ON Voltage
CSO, PGB Leakage Current
Output Driver ON Resistance
Charge Driver ON Resistance
VCP
ILCP
ICSO=IPGB=10mA
VCSO=VPGB=5.5V
-
-
-
-
-
0.5
0.1
-
V
①
①
①
①
-
μA
ROUT
RCHG
300
300
mΩ
mΩ
-
VBAT=4.5V
BAT Sink Current
IBSC
IBAT
-
-
0.2
0.1
1.0
0.5
μA
μA
①
①
Charge Completion
BAT Sink Current at UVLO
VIN=VSD=0V, IOUT=0A
VIN=VOUT=VSD=0V
after Toggle(L→H→L)
Signal to SD Pin
BAT Sink Current at Shutdown
IBSD
-
0.1
0.5
μA
①
(*1) Design value
(*2) Setting Value
XC6806 Series
■ELECTRICAL CHARACTERISTECS
XC6806 Series
Unless otherwise stated, VIN=5V, CIN=CBAT=1μF, COUT=10μF, CREG=0.1μF, Ta=25°C
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNIT
CIRCUIT
VREG Output Voltage
Battery Connect Detection(*1)
VREG
VTD
3.267
3.300
80
3.333
V
①
①
①
①
①
①
(*2)
-
-
%
Battery Remove Detection(Hysteresis)(*1)
Thermistor Detection at 0°C
VTDH
VT0
At temperature fall
-
3
-
(*2)
%
(*2)
71.13
-
73.13
2
75.13
-
%
Thermistor Detection Hysteresis at 0°C (*1)
Thermistor Detection at 10°C
VT0H
VT10
At temperature rise
Type A, B Only
(*2)
%
(*2)
62.19
64.19
66.19
%
At temperature rise
Type A, B Only
(*2)
Thermistor Detection Hysteresis at 10°C (*1)
Thermistor Detection at 45°C
VT10H
VT45
VT45H
VT60
-
2
32.96
2
-
①
①
①
①
①
%
(*2)
Type A, B Only
30.96
34.96
%
At temperature fall
Type A, B Only
(*2)
Thermistor Detection Hysteresis at 45°C (*1)
Thermistor Detection at 60°C
-
21.16
-
-
25.16
-
%
(*2)
Type A, C Only
23.16
2
%
At temperature fall
Type A, C Only
(*2)
Thermistor Detection Hysteresis at 60°C (*1)
VT60H
%
Trickle Charge Hold Time(*1)
Main Charge Hold Time(*1)
tTRK
tCHG
TCS
-
-
-
0.5
5
-
-
-
hrs
hrs
°C
①
①
①
Thermal Control Start Temperature(*1)
(*1) Design value
95
(*2) The comparator detect voltage and hysteresis width are indicated as percentages of the IC internal reference voltage VREG (taken to be100%).
■TEST CIRCUITS
Test Circuit①
CIN
COUT
VIN
OUT
SD
CSO
PGB
VREG
CREG
THIN
ISET
BAT
VSS
RSET
CBAT
6/20
XC6806
Series
■OPERATIONAL EXPLANATION
<Charge Function>
Charge Start
Trickle Charge
0.5 hrs
Main Charge
5 hrs
V
BAT≧2.9V under 0.5 hrs
Abnormal Mode
Reset
V
BAT≦(VCV or VCVH) -0.1V
Charge Completion
Reset
VBAT=VCV or VCVH
and ＩBAT x 0.1mA or less
under 5 hrs
●Charge Start
When UVLO release (VUVLO) takes place due to power on, and when battery connection is detected (VTD) due to insertion of the
lithium ion battery, charge starts after 20 ms elapses.If the power is not on or the battery is not inserted, charge will not start. If
the system load current is 450mA or higher, the input current limit (IINL) activates and charge of the lithium ion battery does not
start. When the load current is less than 450mA, charge starts.
●Tricle Charge：0.5 hour
If the BAT pin voltage has not reached 2.9V(VTRK), the lithium ion battery is charged at a current that is 1/10 the main charge
current. If the BAT pin voltage rises to 2.9V(VTRK) within 0.5 hours (tTRK), the IC transitions to main charge after 4ms. During trickle
charge, the CSO pin output is ON. If the BAT pin voltage does not reach 2.9V(VTRK) after 0.5 hours (tTRK), the IC transitions to
the abnomal mode and charge stops.
●Main Charge：5 hours
When the condition for charge from trickle charge to main charge is satisfied, the lithium ion battery is charged at the charge
current set with the external resistance (RSET) connected to the ISET pin.During main charging, the CSO pin output is ON. If the
BAT pin voltage rises to the charge voltage (VCV or VCVH) within 5 hours (tCHG) and the charge current drops to the charge
completion current, which is 1/10 the charge current set with the external resistor (RSET), the IC transitions to the charge completion
after 4ms and charge stops. If the charge current is still higher than the charge completion current after 5 hours (tCHG), the IC
transitions to the abnomal mode and charge stops.
The main charge current can be set to a value from 10mA(IBATL) to 385mA(IBATM) using an external resistor (RSET). The charge
current value (IBAT) set with RSET is approximated by the following equation.
RSET (kΩ) = 421 x IBAT-1.08 (mA)
●Charge Completion
When the condition for transition from main charge to charge completion is satisfied, charge of the lithium ion battery stops and
the CSO pin output turns OFF. Reset takes place when the power is turned off-on or the lithium ion battery is reinserted.
●Recharge Function
When the BAT pin voltage drops from the charge voltage (VCV or VCVH) to 0.1V (VRC) after charge complettion, charge
automatically resumes after 8ms elapses.
●Abnormal Mode
If trickle charge continues for 0.5 hours (tTRK), or main charge continues for 5 hours (tCHG), an abnormal is detected and charge
stops. When an abnoemal mode, the CSO pin output oscillates at 1 kHz.Reset takes place when the power is turned off-on or the
lithium ion battery is reinserted.
XC6806 Series
■OPERATIONAL EXPLANATION (Continued)
<Current Path Function>
500mA
450mA
IOUT
65mA
0mA
450mA
385mA
IVIN
0mA
385mA
IBAT
0mA
-65mA
4.6V
Battery Voltage
3.95V
VOUT
0V
4.6V
3.95V
Battery Voltage
VOUT
0V
Power is supplied to the system from the OUT pin at the same time as the lithium ion battery is charged. A current limit function
is incorporated, and while the input current limit is not exceeded, priority is given to supply of power to the system than charge
current to the battery. If the load current to the system exceeds the 450mA input current limit (IINL), current is also supplied from
the lithium ion battery by the battery discharge control function.When the OUT pin voltage drops below the BAT pin voltage by
0.1V or more (VBD) during supply from the battery, the Pch driver between the OUT pin and BAT pin turns ON.
When there is little load current from the OUT pin, the OUT pin outputs 4.6V (VOUT). When the load current increases and
together with the charge current exceeds the 450mA input limit current (IINL), the charge current is decreased and the current from
the power input pin VIN is held at 450mA. At this time the OUT pin becomes the battery voltage if the battery voltage during
charging is 3.95V or higher. If the battery voltage is lower than 3.95V, 3.95V(VOCCR) is output. If the load current increases further
and reaches 450mA or higher, current is also supplied from the lithium ion battery and the OUT pin voltage becomes the battery
voltage.
Note that when the VIN pin voltage is low and the input current is large, the current is limited to a value smaller than the 450mA
input current limit (IINL), as determined by the ON resistance of the output driver. In this case, a drop in the OUT pin voltage and
charge current will occur, but charging will continue.
8/20
XC6806
Series
■OPERATIONAL EXPLANATION (Continued)
< Lithium Ion Battery Temperature Monitor Function >
The XC6806 monitors the temperature of the lithium ion battery by means of an NTC thermistor connected to the THIN pin, and
controls the charge current and charge voltage based on the temperature to safely charge the battery. NTC temperature detection
conforms to the characteristics of the NCP15XH103F03RC of Murata Manufacturing Co., Ltd. (NTCG103JF103FT of TDK Co.,
LTD. )
I
BAT(Adjustable)
I
BAT x 0.5
Cold
Hot
Operation
(Type A Only)
Normal Operation
Operation
(Type A, B Only)
0
℃
10℃
45℃
60
℃
Charge Current vs Thermistor Temperature
VCV
Cold
Operation
VCVH
Normal Operation
Hot
(Type A, B Only)
Operation
(Type A Only)
0
℃
10℃
45℃
60
℃
Charge Voltage vs Thermistor Temperature
●Type A （4 Temperature Monitor 0℃,10℃,45℃,60℃）
Cold Operation
When 0°C＜Thermistor Temperature≦10°C(VT0, VT10), the charge current is limited to IBAT × 0.5.
When Thermistor Temperature≦0°C(VT0), charge and the timer count pause. While charge is paused, the CSO pin output is OFF.
Normal Operation
When 10°C＜Thermistor Temperature＜45°C(VT10, VT45), the battery is charged at the charge current IBAT and the charge
voltage VCV
.
Hot Operation
When 45°C≦Thermistor Temperature＜60°C(VT45, VT60), the charge voltage switches to VCVH and charging continues.
When Thermistor Temperature≧60°C(VT60), charge and the timer count pause. While charge is paused, the CSO pin output is
OFF.
●Type B （3 Temperature Monitor 0℃, 10℃, 45℃）
Unlike Type A, Type B does not have 60°C(VT60) monitoring, and at 45°C≦Thermistor Temperature(VT45), charge and the timer
count pause. While charge is poused, the CSO pin output is OFF.
●TypeC （2 Temperature Monitor 0℃, 60℃）
Unlike Type A, Type C does not have 10°C(VT10) and 45°C(VT45) monitoring, and when Thermistor Temperature≦0°C(VT0) or
Thermistor Temperature≧60°C(VT60), charge and the timer count pause. While charge is paused, the CSO pin output is OFF.
●VREG Pin
The VREG pin is a reference voltage output pin for internal and external NTC thermistor temperature detection. Connect a 0.1μF
capacitor CREG and 10 kΩ resistor. (■Refer to the typical application circuit.)
XC6806 Series
■OPERATIONAL EXPLANATION (Continued)
<Shut Down Function>
When the VIN pin falls below 4.1V (VUVLOH) or below the lithium ion battery voltage and the UVLO function activates, the OUT
pin and BAT pin conduct via the Pch driver. When High level voltage (VSDH) is input into the SD pin in this state, the rising edge
turns OFF the Pch driver between the OUT pin and BAT pin, breaking conduction between the battery and the system.When the
power input pin rises above 4.2V (VUVLO) and above the lithium ion battery voltage, and the UVLO function is released, the
shutdown function is released. The SD pin includes an internal pull-down resistance (RSD).
<Protection Function>
●UVLO Function
When the VIN pin falls below 4.1V (VUVLOH),or below the lithium ion battery voltage, the OUT pin and BAT pin conduct via the
Pch driver, conduction between the VIN pin and OUT pin is broken by the Pch driver, and the IC stops operating. When the VIN pin
rises above 4.2V (VUVLO), and above the lithium ion battery voltage, the IC starts.
●Thermal Control Function
A thermal control function is incorporated to prevent destruction and thermal runaway due to heat generation in the IC. When
the chip temperature reaches 95°C (TCS), the input current limit is reduced. An abnormal mode does not occur when the thermal
control function activates, and the CSO output does not change.
●Back Current Protection Function
To prevent reverse current from the Lithum ion battery to the charger, this function monitors the potential difference between
the BAT pin voltage VBAT and the VIN pin voltage. When VIN drops to VBAT + 0.07V, the Pch driver between the VIN pin and OUT
pin turns OFF, and in addition the backgate connection of the Pch driver is switched from the VIN pin to the BAT pin. When VIN
rises above VBAT+0.1V, this function is released, the Pch driver turns ON, and the backgate connects to the VIN pin.
●Timer Reset
In theconditions below, all timers are reset.
・
・
When UVLO is released (VUVLO)at power ON, and at battery connect detection (VTD) when the lithium ion battery is inserted.
When charge resumes after a load current higher than the 450mA input current limit (IINL) flows to the system and causes
charge to stop, and current is then supplied to the system from the battery and the load lightens to less than the 450mA
input current limit (IINL).
10/20
XC6806
Series
■OPERATIONAL EXPLANATION (Continued)
●Low Voltage Operation for the OUT Pin
The IC stops in operation when the OUT pin falls to 2V or less as the OUT pin is shorted to the ground. In this case, the IC
restarts when UVLO is active and release.
The input current for the VIN pin is saved 25mA when the IC starts after the OUT pin is 0V by the shutdown function or the
external Lithium ion Battery Protection Function. It is supplies up to the 450mA input current limit (IINL) when the OUT pin rises
over 2V.
CAUTION 1
Additionally, some Li-ion/polymer battery protection circuits conflict with the OUT pin low voltage limiting function. Please check
the following specifications of the battery protection circuit.
・ Please use the type that completely cuts off after overcurrent detection until the voltage is re-suppulied from the charger.
・ Please refer to the following when using the type that automatically recovers from over current detection when the load current
detection when the load current decreases after detection of over current.
Some battery protection circuits are held in a state where the battery and the protection circuit output are connected with a
certain resistance “R” value when over current is deteced.
In this case, even if the load current decreases, the current and the “R” are balanced, the BAT pin may be held at 0.5V to 2.0V,
and charging is not restarted by the OUT pin low voltage limiting function when a voltage is provided to the VIN pin of this IC.
After detection of over discharge, there is a type of protection IC that automatically recovers from over discharge protection when
the battery voltage re-rises without applying voltage for recharging, then switches to overcurrent protection function. In case of
this type, please check above.
CAUTION 2
When the XC6806 start up, the BAT pin must 0.5V or less or 2.0V or more.
If it is between 0.5V and 2.0V, the OUT pin low voltage limiting function operates and a battery will not be charged.
When restart from 0.5V or less, the OUT pin low voltage limiting function temporarily stops until the OUT pin exceed 2.0V.
The supply current from VIN is limited to 25mA until it reaches 2.0V at the time of restart to avoid the case where the load
circuit is short and other problems.
With this 25mA limit and the OUT pin low voltage limiting function,
・ COUT should be nominally 47μF or less. If larger COUT is used, the OUT pin low voltage limiting function may operate at
restart.
・ When the load current is large, there is a case where is does not start up due to the 25mA limit. Therefore, please delay start
of the load circuit to wait for the rise of the OUT pin voltage of XC6806. For example, we recommend measures such as a CR
delay to the CE(EN) terminal of LDO and/or DCDC of a load.
XC6806 Series
■OPERATIONAL EXPLANATION (Continued)
<PGB Pin>
When the power is turned on and the UVLO function is released, the Nch open drain output of the PGB pin turns ON. When the
power input pin falls below 4.1V (VUvLOH) or below the lithium ion battery voltage and the UVLO function activates, the output turns
OFF.
<Charge Status Output (CSO) Pin>
The CSO pin is an Nch open drain output that changes based on the states of the charging function.
CSO Pin Output Patterns
STATUS
CSO
ON
Trickle Charge
Main Charge
ON
Charge Completion
Abnormal Mode
Charger Disable
OFF (Hi-Z)
1kHz Oscillation
OFF (Hi-Z) (*1)
(*1) Charge function stop
In the following states, the charging function stops and the CSO pin output turns OFF.
・
・
・
・
・
The shutdown function operates
The UVLO function operates
The reverse current protection function operates
The load current from the OUT pin is larger than the input current limit and current is supplied to the system from thebattery
When the the lithium ion battery temperature monitor function is used and thethermistor temperature falls below0°C (VT0)
or rises above 60°C (VT60) (Types A and C)
On Type B, when the thermistor temperature falls below0°C(VT0) or rises above 45°C(VT45
)
12/20
XC6806
Series
■OPERATIONAL EXPLANATION (Continued)
<Charge Timing Chart>
60°C
45°C
Battery
Temperature
10°C
0°C
ＶCV
VCVH
VＢＡＴ
2.9Ｖ
0Ｖ
ｔ
ＩＢＡＴ(Adjustable)
IBAT ×0.5
IBAT ×0.1
0mA
ｔ
Trickle Charge
Charge
Start
Charge Completion
Hot
Cold
Operation
(Type A Only)
Main Charge
Operation
(Type A, B Only)
XC6806 Series
■NOTE ON USE
1. Even temporary or transient voltage drops and rises may cause deterioration or destruction if the absolute maximum ratings
are exceeded.
2. If the wiring has a high impedance, the output current may cause unstable operation. In particular, strengthen the wiring of the
VIN, BAT, and OUT pins.
3. Place the input capacitor (CIN), output capacitors (COUT, CBAT, CREG), and charge current setting resistor (RSET) as close as
possible to the IC to keep the wiring short.
4. An overcurrent protection function is not provided for the current from the BAT pin to the OUT pin. Exercise sufficient caution to
ensure that the current does not exceed 500mA.
5. This IC is not integrated the over current protection function from the BAT pin to the OUT pin and the over discharge protection
function so should build separately the protection functions for the Lithium Ion Battery.
6.This IC uses an external thermistor for high-accuracy detection and control of temperature. Test the position of the external
thermistor sufficiently to verify that temperature can be accurately detected.
7. Risk of destruction if the battery polarity is reversed. Never use with the polarity reversed, as safety cannot be guaranteed in
the event that the IC explodes.
8. Short-circuiting to an adjacent pin may cause malfunctioning and damage. Exercise caution during mounting and use.
9. A large ripple voltage on the VIN pin may cause the IC to malfunction. Test sufficiently before use.
10. The set charge current must always be within therange 10mA to 385mA.
11. Do not connect anything other than a resistance to the ISET pin.
12. Do not use the reference voltage output from the VREG pin for any purpose other than NTC thermistor temperature detection.
13. The charge is stopped lower than the setting voltage by the back current protection if the charge voltage is set high and the
input voltage is low.
14. Torex places an importance on improving our products and their reliability.
We request that users incorporate fail-safe designs and post-aging protection treatment when using Torex products in
their systems.
14/20
XC6806
Series
■TYPICAL PERFORMANCE CHARACTERISTICS
(1) Charge Current vs. External Resistor (Normal Operation)
40
VIN = 5.0 V, VBAT =3.7 V
VTHIN = 1.65 V
30
20
Ta = -40 °C
Ta = 25 °C
Ta = 85 °C
10
0
0
100
200
300
400
Charge Current: IBAT [mA]
(2) Charge Current vs. Ambient Temperature (Normal Operation)
430
(3) Charge Current vs. Ambient Temperature (Normal Operation)
16
VIN = 5.0 V, VBAT =3.7 V
RSET = 30 kΩ, VTHIN = 1.65 V
VIN = 5.0 V, VBAT =3.7 V
RSET = 0.68 kΩ, VTHIN = 1.65 V
410
390
370
350
14
12
10
8
-50
-25
0
25
50
75
100
-50
-25
0
25
50
75
100
Ambient Temperature: Ta [°C]
Ambient Temperature: Ta [°C]
(4) Charge Current vs. Ambient Temperature (Cold Operation)
210
(5) Charge Current vs. Ambient Temperature (Cold Operation)
10
VIN = 5.0 V, VBAT =3.7 V
RSET = 30 kΩ,VTHIN = 2.25 V
VIN = 5.0 V, VBAT =3.7 V
RSET = 0.68 kΩ, VTHIN = 2.25 V
205
200
195
190
8
6
4
2
-50
-25
0
25
50
75
100
-50
-25
0
25
50
75
100
Ambient Temperature: Ta [°C]
Ambient Temperature: Ta [°C]
XC6806 Series
■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
(6) Tricle Charge Current vs. Ambient Temperature
(7) Tricle Charge Current vs. Ambient Temperature
50
2.5
VIN = 5.0 V, VBAT =2.7 V
RSET = 0.68 kΩ, VTHIN = 1.65 V
VIN = 5.0 V, VBAT =2.7 V
RSET = 30 kΩ, VTHIN = 1.65 V
48
46
44
42
2.0
1.5
1.0
0.5
-50
-25
0
25
50
75
100
-50
-25
0
25
50
75
100
Ambient Temperature: Ta [°C]
Ambient Temperature: Ta [°C]
(8) Charge Completion Current vs. Ambient Temperature
48
(9) Charge Completion Current vs. Ambient Temperature
2.5
VIN = 5.0 V ,RSET = 0.68 kΩ
VTHIN = 1.65 V
VIN = 5.0 V ,RSET = 30 kΩ
VTHIN = 1.65 V
46
44
42
40
2.0
1.5
1.0
0.5
-50
-25
0
25
50
75
100
-50
-25
0
25
50
75
100
Ambient Temperature: Ta [°C]
Ambient Temperature: Ta [°C]
(10) Charge Voltage vs. Charge Current (Normal Operation)
4.30
(11) Charge Voltage vs. Charge Current (Hot Operation)
4.15
VIN = 5.0 V, RSET = 0.68 kΩ
VTHIN = 0.95 V
VIN = 5.0 V, RSET = 0.68 kΩ
VTHIN = 1.65 V
4.10
4.05
4.25
4.20
Ta = -40 °C
Ta = 25 °C
Ta = 85 °C
4.00
3.95
Ta = -40 °C
Ta = 25 °C
Ta = 85 °C
4.15
4.10
0
100
200
300
400
0
100
200
300
400
Battery Charge Current: IBAT [mA]
Battery Charge Current: IBAT [mA]
16/20
XC6806
Series
■TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
XC6806 Series
■PACKAGING INFORMATION
For the latest package information go to, www.torexsemi.com/technical-support/packages
PACKAGE
LGA-10B01
USP-10B
OUTLIN / LAND PATTERN
LGA-10B01 PKG
THERMAL CHARACTERISTICS
LGA-10B01 Power Dissipation
USP-10B Power Dissipation
Standard Board
Standard Board
USP-10B PKG
18/20
XC6806
Series
■MARKING RULE
①Represents products series
MARK
3
PRODUCT SERIES
XC6806******-G
②③represents internal sequential number
01… 09, 10… 99, A0… A9, B0… B9… Z9… repeated.
(G, I, J, O, Q, W excluded)
④⑤represents production lot number
01～09、0A～0Z、11･･･9Z、A1～A9、AA･･･Z9、ZA～ZZ in order.
(G, I, J, O, Q, W excluded)
* No character inversion used
XC6806 Series
1. The product and product specifications contained herein are subject to change without notice to
improve performance characteristics. Consult us, or our representatives before use, to confirm that
the information in this datasheet is up to date.
2. The information in this datasheet is intended to illustrate the operation and characteristics of our
products. We neither make warranties or representations with respect to the accuracy or
completeness of the information contained in this datasheet nor grant any license to any intellectual
property rights of ours or any third party concerning with the information in this datasheet.
3. Applicable export control laws and regulations should be complied and the procedures required by
such laws and regulations should also be followed, when the product or any information contained in
this datasheet is exported.
4. The product is neither intended nor warranted for use in equipment of systems which require
extremely high levels of quality and/or reliability and/or a malfunction or failure which may cause loss
of human life, bodily injury, serious property damage including but not limited to devices or equipment
used in 1) nuclear facilities, 2) aerospace industry, 3) medical facilities, 4) automobile industry and
other transportation industry and 5) safety devices and safety equipment to control combustions and
explosions. Do not use the product for the above use unless agreed by us in writing in advance.
5. Although we make continuous efforts to improve the quality and reliability of our products;
nevertheless Semiconductors are likely to fail with a certain probability. So in order to prevent personal
injury and/or property damage resulting from such failure, customers are required to incorporate
adequate safety measures in their designs, such as system fail safes, redundancy and fire prevention
features.
6. Our products are not designed to be Radiation-resistant.
7. Please use the product listed in this datasheet within the specified ranges.
8. We assume no responsibility for damage or loss due to abnormal use.
9. All rights reserved. No part of this datasheet may be copied or reproduced unless agreed by Torex
Semiconductor Ltd in writing in advance.
TOREX SEMICONDUCTOR LTD.
20/20
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