LT1952 데이터 시트보기 (PDF) - Linear Technology
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LT1952 Datasheet PDF : 28 Pages
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LT1952/LT1952-1
TYPICAL PERFORMANCE CHARACTERISTICS
BLANK Duration vs RBLANK
1000
TA = 25°C
800
600
400
200
0
0 20 40 60 80 100 120 140 160
RBLANK (k)
1952 G26
OUT Rise/Fall Time
vs OUT Load Capacitance
125
TA = 25°C
100
tr
75
tf
50
25
0
0 1000 2000 3000 4000 5000
OUT LOAD CAPACITANCE (pF)
1952 G20
OUT: Max Duty Cycle CLAMP
vs SS_MAXDC
90
TA = 25°C
80
fOSC = 200kHz
RDELAY = 10k
70
SD_VSEC = 1.32V
60
50
SD_VSEC = 1.98V
40
30
SD_VSEC = 2.64V
20
1.60
1.84
SS_MAXDC (V)
2.08
1952 G23
tDELAY: SOUT Rise to OUT Rise
vs Temperature
200
150
RDELAY = 120k
100
50
0
–50 –25
RDELAY = 40k
0 25 50 75
TEMPERATURE (°C)
100 125
1952 G19
OUT: Max Duty Cycle vs fOSC
100
90
80
TA = 25°C
SS_MAXDC = 2.5V
SD_VSEC = 1.4V
70
100
200
300
fOSC (kHz)
400
500
1952 G21
SS_MAXDC Setting
vs fOSC (for OUT DC = 72%)
2.32
TA = 25°C
SD_VSEC = 1.32V
2.20 RDELAY = 10k
2.08
1.96
1.84
1.72
1.60
100
200
300
400
500
fOSC (kHz)
1952 G24
8
tDELAY: SOUT Rise to OUT Rise
vs RDELAY
240
TA = 25°C
160
80
0
0 40 80 120 160 200 240
RDELAY (k)
1952 G27
OUT: Max Duty Cycle CLAMP
vs SD_VSEC
90
80
70
60
50
40
30
20 TA = 25°C
SS_MAXDC = 1.84V
10 fOSC = 200kHz
RDELAY = 10k
0
1.32
1.65
1.98
2.31
SD_VSEC (V)
2.64
1952 G22
SS_MAXDC Reset and Active
Thresholds vs Temperature
1.2
1.0
ACTIVE THRESHOLD
0.8
0.6
0.4
RESET THRESHOLD
0.2
0
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
1952 G25
19521fe
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