LTC1732-4.2 データシートの表示（PDF） - Linear Technology
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LTC1732-4.2 Datasheet PDF : 12 Pages
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LTC1732-4/LTC1732-4.2
ELECTRICAL CHARACTERISTICS The q denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VCC = 6V unless otherwise noted.
SYMBOL PARAMETER
CONDITIONS
MIN TYP MAX UNITS
IC/10
tTIMER
VRECHRG
End of Charge Indication Current Level
TIMER Accuracy
Recharge Battery Voltage Threshold per Cell
RPROG = 19.6k, RSENSE = 0.2Ω
CTIMER = 0.1µF
VBAT from High to Low (LTC1732-4)
VBAT from High to Low (LTC1732-4.2)
q 25 50 100
mA
10
%
3.72 3.80
V
3.95 4.05
V
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: The LTC1732E is guaranteed to meet performance specifications
from 0°C to 70°C. Specifications over the –40°C to 85°C operating
temperature range are assured by design, characterization and correlation
with statistical process controls.
TYPICAL PERFOR A CE CHARACTERISTICS
Trickle Charge Current vs VCC
60 RPROG =19.6kΩ
RSEN = 0.2Ω
VBAT = 2V
55 TA = 25°C
Program Voltage vs Temperature
2.470
VCC = 6V
RPROG = 19.6kΩ
2.465
Timer Accuracy vs Temperature
110
VCC = 6V
CTIMER = 0.1µF
105
50
2.460
100
45
2.455
95
40
4
6
8
10
12
VCC (V)
1732 G01
Trickle Charge Threshold Voltage
vs Temperature
2.470
VCC = 6V
2.465
2.450
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
1732 G02
Timer Accuracy vs VCC
110
CTIMER = 0.1µF
VBAT = 3V
TA = 25°C
105
90
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
1732 G03
Trickle Charge Current vs
Temperature
60 RPROG =19.6kΩ
RSEN = 0.2Ω
VBAT = 2V
55 VCC = 6V
2.460
100
50
2.455
95
45
2.250
90
–50 –25 0 25 50 75 100 125
4
6
8
10
12
TEMPERATURE (°C)
VCC (V)
1732 G04
1732 G05
40
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
1732 G06
3
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