(*1) The “-G” suffix denotes Halogen and Antimony free as well as being fully RoHS compliant.
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˙BLOCK DIAGRAM
XC6802
Series
* Diodes inside the circuits are ESD protection diodes and parasitic diodes.
˙PIN ASSIGNMENT
PIN NUMBER
SOT-25 SOT-89-5 USP-6C
1
5
3
2
2
2
3
4
1
4
3
6
5
USP-6EL 3 2 1 6 4 5
PIN NAME
/CHG VSS BAT VIN ISEN NC
FUNCTIONS
Charge Status Output Pin Ground
200
ChCahrgaergeCCuurrrerenntt
3.40
100
3.20
0
3.00
0.00 0.25 0.50 0.75 1.00 1.25 1.50 1.75 2.00
TiTmiem(eho(huor)urs)
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XC6802 Series
˙PIN CONFIGURATION
* The dissipation pad for the USP-6C / USP-6EL package should be solder-plated in recommended mount pattern and metal masking so as to enhance mounting strength and heat release. If the pad needs to be connected to other pins, it should be connected to the VSS (No. 2) pin.
900
550 500 1300 (PCB mounted) (*3) 250 600 (PCB mounted) (*3) 120 1000 (PCB mounted) (*3) 120 1000 (PCB mounted) (*3) - 40 ~ + 85 - 55 ~ + 125
All voltages are described based on the VSS pin. (*1) Please use within the range of IBAT≦Pd/(VIN-VBAT). (*2) The maximum rating corresponds to the lowest value between VIN+0.3 or +6.5. (*3) This is a reference data taken by using the test board. Please refer to page 17 to 20 for details.
Float Voltage 1 Float Voltage 2 (*1)
Maximum Battery Current (*2)
Battery Current 1 Battery Current 2 Battery Current 3 Battery Current 4 Battery Current 5 Trickle Charge Current 1 Trickle Charge Current 2
Pull-down by external components
OFF (Shutdown Mode) ON, Charge Current IBAT=1000 / RSEN *
* For SOT-25, SOT-89-5, and USP-6C, charge current should be set to become IBAT≦800mA.
SYMBOL PR
PR-G MR MR-G ER ER-G 4R-G
DESCRIPTION SOT-89-5 (1,000/Reel) SOT-89-5 (1,000/Reel) SOT-25 (3,000/Reel) SOT-25 (3,000/Reel) USP-6C (3,000/Reel) USP-6C (3,000/Reel) USP-6EL (3,000/Reel)
BatBteatrtyerVyoVltoaltgaege
600
4.20
CChhaarrggee CCuurrrreentnt: IIBBAATT((mmA)A) Battery Voltage VBAT(V) Battery Voltage : VBAT (V)
500
4.00
400
3.80
300
3.60
Function
: Constant-current/constant-voltage Operation
Thermal Shutdown
Automatic Recharge
Charge Status Output Pin
Soft-start Function (Inrush Limit Current)
˙APPLICATIONS
˔ç Charging docks, charging cradles ˔ç MP3 players, portable audio players ˔ç Cellular phones, PDAs ˔ç Bluetooth headsets
˙çFEATURES
Operating Voltage Range : 4.25V ~ 6.0V
Charge Current
: Externally set up to 800mA (MAX.)
Charge Termination Voltage : 4.2V ʶ0.7%
Trickle Charge Voltage
: 2.9V ʶ3%
Supply Current (Stand-by) : 15ЖA (TYP.)
Trickle Voltage
SYMBOL VIN ISS ISTBY
ISHUT
VFLOAT1 VFLOAT2
IBATMAX
IBAT1 IBAT2 IBAT3 IBAT4 IBAT5 ITRIKL1 ITRIKL2 VTRIKL
CONDITIONS
Charge mode, RSEN=10kΩ Stand-by mode Shut-down mode (RSEN=NC, VIN<VBAT or VIN<VUVLOʣ Ta=25ˆ, IBAT=40mA 0ˆʽTaʽ50ˆ, IBAT=40mA SOT-25 / SOT-89-5 / USP-6C USP-6EL RSEN=10kΩ, CC mode RSEN=2kΩ, CC mode Stand-by mode, VBAT=4.2V Shut-down mode (RSEN=NC) Sleep mode, VIN=0V VBAT<VTRIKL, RSEN=10kΩ VBAT<VTRIKL, RSEN=2kΩ RSEN=10kΩ, VBAT Rising
˙TYPICAL PERFORMANCE CHARACTERISTICS
˔Battery Charge Cycle
LLi-i-iioonn BBaatttteerryyCChhaargr geeCCyycclele
VIN=5.0V, CIN=1ЖF
VIN=5.0V, CIN=1uF
700
RSRESNEN==22kkΩo,hm8,3803m0mAAhh BBaatttteerryy 4.40
Power Dissipation
SOT-25 USP-6C
USP-6EL
Operating Temperature Range Storage Temperature Range
SYMBOL VIN VSEN VBAT
V/CHG IBAT
Pd
Topr Tstg
RATINGS -0.3 ~ + 6.5 -0.3 ~ VIN + 0.3 or +6.5 (*2) -0.3 ~ + 6.5 -0.3 ~ + 6.5
Charge Current Output Pin Input Voltage Pin
Charge Current Setup Pin No Connection
˙FUNCTIONS
XC6802A42X
PIN NAME
CONDITIONS
IC OPERATION
ISEN
H Level (1.4V≦VSEN≦VIN) or Open
XC6802 Series
800mA Single Cell Li-ion Battery Linear Charger IC
ETR2501-006
˙GENERAL DESCRIPTION
The XC6802 series is a constant-current/constant-voltage linear charger IC for single cell lithium-ion batteries. The XC6802 includes a reference voltage source, battery voltage monitor, driver transistor, constant-current/constant-voltage charge circuit, over heat protection circuit, phase compensation circuit. The battery charge termination voltage is internally set to 4.2V ʶ 0.7% and the trickle charge voltage and accuracy is 2.9V ʶ3%. In trickle charge mode, a safe charge to a battery is possible because approximately 1/10 out of setting charge current is supplied to the battery. With an external RSEN resistor, the charge current can be set freely up to 800mA (MAX.), therefore, the series is ideal for various battery charge applications. The series’ charge status output pin, /CHG pin, is capable of checking the IC’s charging state while connecting with an external LED.