SC802/SC802A
POWER MANAGEMENT
Electrical Characteristics (Cont.)
Unless otherwise noted: VCC = 4.75V - 5.25V
Parameter
Symbol
Conditions
Min
25
o
C
Typ
<1
1.41
28.2
1.5
30
3.75
75
1.59
31.8
3.88
77.6
Max
Units
T
A
o
(-40 C to +85 C)
o
Min
0.5
1.4
28
3.6
72
Max
1.1
1.6
32
3.9
78
4.6
92
V
V
%
V
%
V
%
mV
1.1
V
V
EN-NTC Thresholds
VT
NTCDIS
VT
NTCH
SC802 Disable
NTC Hot Vth, VCC = 5V
VT
NTCC
NTC Cold Vth, VCC = 5V
3.62
72.4
VT
NTCEN
NTC Enable, VCC = 5V
VT
NTHYS
Timer Disable Threshold
Internal Timer Select
Ext RTIME Voltage
Pre-Charge Fault Time-out
VT
TIMER
VT
INTTS
V
RTIME
T
PreQF
Hot/Cold Vth hysteresis
Complete Charge Time-out
fi
n
o
C
T
QCOMP
V
CHRGB
I
CHRGB
V
CPB
I
CPB
VIH
VIL
V
RTIME
< VT
TIMER
Disables
Timer
VCC-V
RTIME
< VT
INTTS
selects internal timer
RTIME tied through 36.5kΩ
to GND
RTIME tied through 36.5kΩ
to GND
RTIME tied to VCC
RTIME tied through 36.5kΩ
to GND
RTIME tied to VCC
Load = 5mA
Leakage Current, V = 5V
Load = 5mA
Leakage Current, V = 5V
t
n
e
d
4.22
84.4
1
45
3
4.5
90
50
l
ia
4.58
91.6
4.2
84
0.7
1.5
1.4
1.6
1.5
50
V
min
-35%
+35%
hr
3.3
-35%
+35%
1
1
0.5
1
1
1.8
0.4
CHRGB Charge LED On
CHRGB Charge LED Off
CPB LED On
CPB LED Off
BIPB, VPRGM Inputs
0.5
V
µA
V
µA
V
V
2005 Semtech Corp.
Confidential Proprietary
4
www.semtech.com
SEMTECH [ SEMTECH CORPORATION ]
