LT1952
7
1952f
TYPICAL PERFOR A CE CHARACTERISTICS
UW
t
DELAY
: SOUT
Rise to OUT Rise vs
Temperature
OUT Rise/Fall Time vs OUT Load
Capacitance
OUT: Max Duty Cycle vs f
OSC
OUT: Max Duty Cycle CLAMP vs
SD_V
SEC
OUT: Max Duty Cycle CLAMP vs
SS_MAXDC
SS_MAXDC Setting vs f
OSC
(for OUT DC = 72%)
SS_MAXDC Reset and Active
Thresholds vs Temperature
TEMPERATURE (°C)
–50
0
t
DELAY
(ns)
50
200
0
50
75
1952 G19
150
100
–25
25
100
125
R
DELAY
= 40k
R
DELAY
= 120k
OUT LOAD CAPACITANCE (pF)
0
0
OUT RISE/FALL TIME (ns)
50
25
125
2000
3000
100
75
1000
4000
5000
t
r
t
f
1952 G20
T
A
= 25°C
f
OSC
(kHz)
100
70
OUT DUTY CYCLE (%)
80
100
200
300
90
400
500
1952 G21
T
A
= 25°C
SS_MAXDC = 2.5V
SD_V
SEC
= 1.4V
SD_V
SEC
(V)
1.32
0
70
OUT MAX DUTY CYCLE CLAMP (%)
80
90
1.65
1.98
60
50
40
30
20
10
2.31
2.64
1952 G22
T
A
= 25°C
SS_MAXDC = 1.84V
f
OSC
= 200kHz
R
DELAY
= 10k
SS_MAXDC (V)
1.60
20
70
OUT MAX DUTY CYCLE CLAMP (%)
80
90
1.84 2.08
60
50
40
30
1952 G23
T
A
= 25°C
f
OSC
= 200kHz
R
DELAY
= 10k
SD_V
SEC
= 1.32V
SD_V
SEC
= 1.98V
SD_V
SEC
= 2.64V
f
OSC
(kHz)
100
1.60
2.08
SS_MAXDC (V)
2.20
2.32
500400300200
1.96
1.84
1.72
1952 G24
T
A
= 25°C
SD_V
SEC
= 1.32V
R
DELAY
= 10k
0
0.8
SS_MAXDC (mV)
1.0
1.2
0.6
0.4
0.2
1952 G25
TEMPERATURE (°C)
–50 0
50
75
–25
25
100
125
ACTIVE THRESHOLD
RESET THRESHOLD
BLANK Duration vs R
BLANK
t
DELAY
: SOUT
Rise to OUT Rise vs
R
DELAY
R
BLANK
(k)
0
0
BLANK (ns)
400
200
1000
40
80
100
1952 G26
800
600
20
60
140120
160
T
A
= 25°C
R
DELAY
(k)
0
0
t
DELAY
(ns)
80
40
200
40
80
100
1952 G27
160
120
20
60
140120
160
T
A
= 25°C