LTC2914 Linear Technology, LTC2914 Datasheet - Page 5

• Manufacturer Part Number: LTC2914
• Description: Quad UV/OV Positive/Negative Voltage Monitor
• Manufacturer: Linear Technology

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TYPICAL PERFOR A CE CHARACTERISTICS
Specifi cations are at T
6.55
6.25
6.75
6.65
6.45
6.35
12
11
10
5
4
1
3
2
0
9
8
7
6
–2
–50
0
V
UV, I
Reset Timeout Period
vs Temperature
–40°C
C
VHn = 0.45V
SEL = V
CC
TMR
25°C
Shunt Voltage vs I
0
–25
SINK
= 1nF
1
CC
SUPPLY VOLTAGE, V
85°C
UV AT 150mV
vs V
2
TEMPERATURE (°C)
0
2
CC
I
4
CC
A
UV AT 50mV
(mA)
25
= 25°C, V
6
3
CC
50
CC
8
(V)
W
4
CC
75
10
= 3.3V unless otherwise noted.
2914 G04
2914 G10
2914 G07
U
12
100
5
1.005
1.004
1.003
1.002
1.001
1.000
0.999
0.998
0.997
0.996
0.995
1.0
0.8
0.6
0.4
0.2
0.4
0.2
0.8
0.6
0
0
–50
0
UV/OV Voltage Output Low
vs Output Sink Current
0
UV Output Voltage vs V
Buffered Reference Voltage
vs Temperature
–25
5
0.2
SUPPLY VOLTAGE, V
125°C
UV WITHOUT
10k PULL-UP
10
TEMPERATURE (°C)
0
I
0.4
UV/OV
15
25
25°C
(mA)
V
0.6
CC
20
50
CC
CC
UV WITH
10k PULL-UP
–40°C
(V)
0.8
25
75
2914 G11
2914 G08
2914 G05
30
1.0
100
10000
1000
100
700
600
500
400
300
200
100
10
1
0
5
4
1
3
2
0
COMPARATOR OVERDRIVE PAST THRESHOLD (%)
0.1
0.1
0
Reset Timeout Period
vs Capacitance
Transient Duration
vs Comparator Overdrive
UV Output Voltage vs V
VHn = 0.55V
SEL = V
V
CC
TMR PIN CAPACITANCE, C
= 2.3V
1
CC
SUPPLY VOLTAGE, V
1
1
V
2
CC
10
LTC2914
= 6V
RESET OCCURS
ABOVE CURVE
3
10
CC
CC
TMR
100
(V)
4
(nF)
2914 G06
2914 G12
2914 G09
5
1000
2914f
100
5