Datasheet

LTC2914
6
2914fc
For more information www.linear.com/LTC2914
V
CC
Shunt Voltage vs I
CC
Buffered Reference Voltage
vs Temperature
Transient Duration
vs Comparator Overdrive
UV Output Voltage vs V
CC
UV/OV Voltage Output Low
vs Output Sink Current
Reset Timeout Period
vs CapacitanceUV, I
SINK
vs V
CC
Reset Timeout Period
vs Temperature
UV Output Voltage vs V
CC
Specifications are at T
A
= 25°C, V
CC
= 3.3V unless otherwise noted.
Typical perForMance characTerisTics
I
CC
(mA)
–2 0
6.25
V
CC
(V)
6.45
6.75
2
6
8
2914 G04
6.35
6.65
6.55
4
10
12
25°C
–40°C
85°C
TEMPERATURE (°C)
–50
0.995
REFERENCE VOLTAGE, V
REF
(V)
0.997
0.999
1.001
–25
0
25 50
2914 G05
75
1.003
1.005
0.996
0.998
1.000
1.002
1.004
100
COMPARATOR OVERDRIVE PAST THRESHOLD (%)
0.1
400
TYPICAL TRANSIENT DURATION (μs)
500
600
700
1 10 100
2914 G06
300
200
100
0
V
CC
= 6V
RESET OCCURS
ABOVE CURVE
V
CC
= 2.3V
TEMPERATURE (°C)
–50
6
UV/OV TIMEOUT PERIOD, t
UOTO
(ms)
7
8
9
10
12
–25
0 25 50
2914 G07
75 100
11
C
TMR
= 1nF
SUPPLY VOLTAGE, V
CC
(V)
0
UV VOLTAGE (V)
0.4
0.6
0.8
2914 G08
0.2
0
0.2
0.4
0.6
1.0
0.8
V
CC
UV WITH
10k PULL-UP
UV WITHOUT
10k PULL-UP
SUPPLY VOLTAGE, V
CC
(V)
0
UV VOLTAGE (V)
3
4
5
4
2914 G09
2
1
0
1
2
3
5
VHn = 0.55V
SEL = V
CC
SUPPLY VOLTAGE, V
CC
(V)
0
PULL-DOWN CURRENT, I
UV
(mA)
3
4
5
4
2914 G10
2
1
0
1
2
3
5
VHn = 0.45V
SEL = V
CC
UV AT 150mV
UV AT 50mV
I
UV/OV
(mA)
0
0
UV/OV, V
OL
(V)
0.2
0.4
0.6
0.8
1.0
5
10 15 20
2914 G11
25 30
85°C
–40°C
25°C
TMR PIN CAPACITANCE, C
TMR
(nF)
10
UV/OV TIMEOUT PERIOD, t
UOTO
(ms)
100
1000
10000
0.1 10 100 1000
2914 G12
1
1