LTC1985-1.8 데이터 시트보기 (PDF) - Linear Technology
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LTC1985-1.8
Linear Technology
LTC1985-1.8 Datasheet PDF : 8 Pages
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TYPICAL PERFOR A CE CHARACTERISTICS
LTC1985-1.8
IVCC3 vs Temperature
15
14
13
12
11
10
9
8
7
6
5
– 60 –40 – 20 0 20 40 60 80 100
TEMPERATURE (°C)
1985-18 G01
IVCC18 vs Temperature
1.5
VCC3 = 3V
1.4 VCCA = 3V
1.3 VCC18 = 1.8V
1.2
1.1
1.0
0.9
0.8
0.7
0.6
0.5
– 60 –40 – 20 0 20 40 60 80 100
TEMPERATURE (°C)
1985-18 G02
VCCA Threshold Voltage
vs Temperature
1.015
1.010
1.005
1.000
0.995
0.990
0.985
–60 –40 –20 0 20 40 60
TEMPERATURE (°C)
80 100
1985-18 G04
Typical Transient Duration
vs Comparator Overdrive
450
TA = 25°C
400
350
RESET OCCURS
300
ABOVE CURVE
250
200
150
100
50
0
0.1
1
10
100
RESET COMPARATOR OVERDRIVE VOLTAGE (% OF VCC)
1985-18 G07
VCC3 Threshold Voltage
vs Temperature
2.845
2.835
2.825
2.815
2.805
2.795
2.785
2.775
2.765
– 60 –40 – 20 0 20 40 60 80 100
TEMPERATURE (°C)
1985-18 G05
Reset Pulse Width
vs Temperature
280
260
240
220
200
180
160
140
–60 –40 –20 0 20 40 60
TEMPERATURE (°C)
80 100
1985-18 G08
VCCA Input Current
vs Input Voltage
2.0
TA = 25°C
1.5
1.0
0.5
0
– 0.5
–1.0
–1.5
– 2.0
0.80 0.85 0.90 0.95 1 1.05 1.10 1.15 1.20
INPUT VOLTAGE (V)
1985-18 G03
VCC18 Threshold Voltage
vs Temperature
1.710
1.700
1.690
1.680
1.670
1.660
1.650
–60 –40 –20 0 20 40 60
TEMPERATURE (°C)
80 100
1985-18 G06
ISINK vs Supply Voltage
8
TA = 25°C
7
6
VOL = 0.4V
5
4
VOL = 0.2V
3
2
1
0
0 0.5 1.0 1.5 2.0 2.5 3.0
VCC3 OR VCC18 (V)
1985-18 • G09
3
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