LTC2909 データシートの表示（PDF） - Linear Technology
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LTC2909 Datasheet PDF : 16 Pages
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LTC2909
TYPICAL PERFOR A CE CHARACTERISTICS TA = 25°C unless otherwise noted
ADJ Threshold Voltage
vs Temperature
508
506
504
502
500
498
496
494
492
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
2909 G01
REF Output Load Regulation
1.015
VCC = 2.5V
1.010
1.005
1.000
0.995
TA = 125°C
TA = 25°C
TA = –40°C
0.990
0.985
–1
–0.5
0
0.5
LOAD CURRENT, IREF (mA)
1
2909 G04
Allowable Glitch Duration
vs Magnitude
700
600
500
400
RESET OCCURS
ABOVE CURVE
300
200
100
0
0.1
1
10
100
GLITCH PERCENTAGE PAST THRESHOLD (%)
2909 G07
4
VCC UVLO Threshold Variation
vs Temperature
1.5
1.0
0.5
0
–0.5
–1.0
–1.5
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
2909 G02
REF Output Line Regulation
1.015
IREF = 0A
1.010
1.005
1.000
0.995
TA = 125°C
TA = 25°C
TA = –40°C
0.990
0.985
2
2.5 3 3.5 4 4.5 5 5.5 6
SUPPLY VOLTAGE, VCC (V)
2909 G05
External Timeout Period
vs Capacitance
10000
1000
100
10
1
0.1
1
10
100
1000
TMR PIN CAPACITANCE, CTMR (nF)
2909 G08
REF Output Voltage
vs Temperature
0.015
IREF = 0A
1.010
1.005
1.000
0.995
0.990
0.985
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
2909 G03
Quiescent Supply Current
vs Temperature
60
ADJ1 = 0.55V
55 ADJ2 = 0.45V
SEL = OPEN
50
VCC = 5V
45
VCC = 3.3V
40
35
VCC = 2.5V
30
25
20
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
2909 G06
Reset Timeout Period
vs Temperature
260
240
EXTERNAL WITH
22nF CAPACITOR
220
200
INTERNAL
180
160
140
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
2909 G09
2909fb
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