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SC802 Datasheet(PDF) 4 Page - Semtech Corporation

Part No. SC802
Description  Fully Integrated Lithium-Ion Battery Charger System with Timer
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Maker  SEMTECH [Semtech Corporation]
Homepage  http://www.semtech.com
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SC802 Datasheet(HTML) 4 Page - Semtech Corporation

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


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