Datasheet
5
LTC2900
2900f
TYPICAL PERFOR A CE CHARACTERISTICS
UW
Typical Transient Duration
vs Comparator Overdrive (V1, V2)
RESET COMPARATOR OVERDRIVE VOLTAGE (% OF V
RTX
)
0.1
250
TYPICAL TRANSIENT DURATION (µs)
300
350
400
450
1 10 100
2900 G13
200
150
50
0
100
RESET OCCURS
ABOVE CURVE
T
A
= 25°C
RESET COMPARATOR OVERDRIVE VOLTAGE (% OF V
RTX
)
0.1
80
TYPICAL TRANSIENT DURATION (µs)
100
120
140
160
1 10 100
2900 G20
60
40
20
0
200
180
220
T
A
= 25°C
RESET OCCURS
ABOVE CURVE
Typical Transient Duration
vs Comparator Overdrive (V3, V4)
I
V4
vs Temperature
TEMPERATURE (°C)
–60
0
I
V4
(µA)
0.1
0.3
0.4
0.5
1.0
0.7
–20
20
40
2900 G12
0.2
0.8
0.9
0.6
–40 0
60
80
100
V1 = 5V
V2 = 3.3V
V3 = 2.5V
V4 = 1.8V
I
V1
vs Temperature
TEMPERATURE (°C)
–60
0
I
V1
(µA)
10
30
40
50
100
70
–20
20
40
2900 G09
20
80
90
60
–40 0
60
80
100
V1 = 5V
V2 = 3.3V
V3 = 2.5V
V4 = 1.8V
I
V2
vs Temperature I
V3
vs Temperature
TEMPERATURE (°C)
–60
0.5
I
V2
(µA)
0.6
0.8
0.9
1.0
1.5
1.2
–20
20
40
2900 G10
0.7
1.3
1.4
1.1
–40 0
60
80
100
V1 = 5V
V2 = 3.3V
V3 = 2.5V
V4 = 1.8V
TEMPERATURE (°C)
–60
0.1
I
V3
(µA)
0.2
0.4
0.5
0.6
1.1
0.8
–20
20
40
2900 G11
0.3
0.9
1.0
0.7
–40 0
60
80
100
V1 = 5V
V2 = 3.3V
V3 = 2.5V
V4 = 1.8V
ADJ Threshold Voltage
vs Temperature
–ADJ Threshold Voltage
vs Temperature
TEMPERATURE (°C)
–60
THRESHOLD VOLTAGE, V
RTA
(V)
0.508
0.506
0.504
0.502
0.500
0.498
0.496
0.494
0.492
–20
20
40
2900 G07
–40 0
60
80
100
TEMPERATURE (°C)
–60
THRESHOLD VOLTAGE, V
RTAN
(V)
0.018
0.012
0.006
0
–0.006
–0.012
–0.018
–20
20
40
2900 G08
–40 0
60
80
100
TEMPERATURE (°C)
–60
V
REF
(V)
1.228
1.222
1.216
1.210
1.204
1.198
1.192
–20
20
40
2900 G21
–40 0
60
80
100
V
REF
vs Temperature