EUP8084
Electrical Characteristics (VADP=5V; TA = -40℃ to 85℃, unless otherwise noted. Typical values are TA=25℃)
EUP8084
Symbol
Parameter
Conditions
Unit
Min. Typ. Max.
Battery Charger
Operation
VADP
Adapter Voltage Range
3.75
85
5
5.5
135
70
V
110
45
(VCC-VBAT),VCC Low to High
(VCC-VBAT),VCC High to Low
Automatic Shutdown Threshold
Voltage
mV
VASD
tSS_CHRG
VUVLO
15
Battery Charger Soft-Start Time
Under-Voltage Lockout (UVLO)
120
3.6
3
µS
V
ADP Rising Edge
3.4
2.8
3.8
3.2
300
5
ADP Falling Edge
V
Operating Current
Shutdown Current
Reverse Leakage Current from
BAT Pin
115
0.2
0.7
IOP
VBAT=4.5V(Forces IBAT and IISET=0)
VBAT = 4V, EN_BAT = GND
VBAT = 4V, VADP=3.5V
µA
µA
µA
ISHUTDOWN
ILEAKAGE
2
Voltage Regulation
End of Charge Accuracy
4.158
2.80
4.200
1
4.242
3.10
V
VBAT_EOC
ΔVBAT_EOC
VBAT_EOC
/
Output Charge Voltage Tolerance
Preconditioning Voltage Threshold
Battery Recharge Voltage
Threshold
%
2.95
-0.15
300
V
V
VMIN
VRCH
Measured from VBAT_EOC
IBAT = 0.9 ICH
△VUVCL1
△VUVCL2
180
90
mV
mV
(ADP - VBAT) Undervoltage
Current Limit Threshold Voltage
IBAT = 0.1 ICH
130
Current Regulation
Charge Current Programmable
15
500
mA
%
ICHG
Range
Charge Current Regulation
Tolerance
ISET Pin Voltage
ΔICHG/ICHG
10
1
V
VISET
KI_A
400
4.5
2.25
1.125
2
Current Set Factor: ICHG/IISET
Termination Timer
tTIMER
3
6
3
hrs
hrs
hrs
Hz
Recharge Time
1.5
Low-Battery Charge Time
Defective Battery Detection STAT
Pulse Frequency
Defective Battery Detection STAT
Pulse Frequency Duty Ratio
Junction Temperature in Constant-
Temperature Mode
VBAT = 2.5V
0.75
1.5
fBADBAT
DBADBAT
TLIM
75
%
℃
115
DS8084 Ver1.0 Apr. 2008
7
EUTECH [ EUTECH MICROELECTRONICS INC ]
