Datasheet

LTC2912
5
2912fb
For more information www.linear.com/LTC2912
TYPICAL PERFORMANCE CHARACTERISTICS
Input Threshold Voltage
vs Temperature
Supply Current vs Temperature
V
CC
Shunt Voltage
vs Temperature
V
CC
Shunt Voltage vs I
CC
UV Output Voltage vs V
CC
Typical Transient Duration vs
Comparator Overdrive
TIMING DIAGRAMS
VH Monitor Timing
VH Monitor Timing (TMR Pin Strapped to V
CC
)
VL Monitor Timing
VL Monitor Timing (TMR Pin Strapped to V
CC
)
VH
UV
V
UOT
1V
t
UOD
t
UOTO
2912 TD01
VL
OV
V
UOT
1V
t
UOD
t
UOTO
2912 TD02
VH
UV
V
UOT
1V
t
UOD
t
UOD
2912 TD03
VL
OV
V
UOT
1V
t
UOD
t
UOD
2912 TD04
TEMPERATURE (°C)
–50
0.495
THRESHOLD VOLTAGE, V
UOT
(V)
0.497
0.499
0.501
–25
0
25 50
2912 G01
75
0.503
0.505
0.496
0.498
0.500
0.502
0.504
100
TEMPERATURE (°C)
–50
15
I
CC
(µA)
20
25
30
35
40
45
–25 0 25 50
2912 G02
75 100
V
CC
= 5V
V
CC
= 3.3V
V
CC
= 2.3V
TEMPERATURE (°C)
–50
6.2
V
CC
(V)
6.3
6.4
6.5
6.6
6.8
–25
0 25 50
2912 G03
75 100
6.7
200µA
1mA
2mA
5mA
10mA
I
CC
(mA)
–2 0
6.25
V
CC
(V)
6.45
6.75
2
85°C
25°C
6
8
2912 G04
6.35
6.65
6.55
4
10
12
–40°C
COMPARATOR OVERDRIVE PAST THRESHOLD (%)
0.1
400
TYPICAL TRANSIENT DURATION (µs)
500
600
700
1 10
100
2912 G05
300
200
100
50
V
CC
= 2.3V
V
CC
= 6V
RESET OCCURS
ABOVE CURVE
SUPPLY VOLTAGE, V
CC
(V)
0
UV VOLTAGE (V)
0.4
0.6
V
CC
0.8
2912 G06
0.2
0
0.2
0.4
0.6
1
0.8
UV WITH
10k PULL-UP
UV WITHOUT
PULL-UP