LTC1536
TYPICAL PERFORMANCE CHARACTERISTICS
V
CC3
Typical Transient Duration
vs Reset Comparator Overdrive
50
45
TYPICAL TRANSIENT DURATION (µs)
TYPICAL TRANSIENT DURATION (µs)
TYPICAL TRANSIENT DURATION (µs)
45
40
35
30
25
20
15
10
5
RESET OCCURS
ABOVE CURVE
0
0.001
0.01
0.1
1
V
CC3
RESET COMPARATOR OVERDRIVE, V
RT3
– V
CC3
(V)
1536 G10
RST Output Voltage
vs Supply Voltage
5.0
4.5
RST OUTPUT VOLTAGE (V)
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
0
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
SUPPLY VOLTAGE, V
CC
(V)
1536 G13
RST OUTPUT VOLTAGE (V)
V
CC5
= V
CC3
= V
CCA
4.7k PULL-UP FROM RST TO V
CC5
T
A
= 25°C
Undervoltage Response Time
vs Temperature
VOLTAGE (500mV/DIV)
85° – 40°
25°
t
FAIL
SPEC
MARGIN
V
CC3
FALLING
FROM 3.3V TO
2.3V AT (– 0.1V/µs)
TIME (1µs/DIV)
1536 G15
VOLTAGE (1V/DIV)
U W
V
CC5
Typical Transient Duration
vs Reset Comparator Overdrive
40
RESET OCCURS
ABOVE CURVE
35
30
25
20
15
10
5
40
35
30
25
20
15
10
5
0
0.01
0.1
1
0.001
V
CC5
RESET COMPARATOR OVERDRIVE, V
RT5
– V
CC5
(V)
1536 G11
V
CCA
Typical Transient Duration
vs Reset Comparator Overdrive
RESET OCCURS
ABOVE CURVE
0
0.01
0.1
1
0.001
V
CCA
RESET COMPARATOR OVERDRIVE, V
RTA
– V
CCA
(V)
1536 G12
RST Output Voltage
vs Supply Voltage
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
0
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
SUPPLY VOLTAGE, V
CC
(V)
1536 G16
V
CC5
= V
CC3
= V
CCA
RST PIN LOADED WITH
10MΩ TO GND
T
A
= 25°C
Power-Fail Response Time
vs Temperature
DEVICE THRESHOLD
PCI SPEC
V
CC3
V
CC5
85°
– 40°
25°
RST
RST
TIME (20ns/DIV)
1536 G14
5
LINER [ LINEAR TECHNOLOGY ]
