Datasheet

LTC2911
5
2911f
TYPICAL PERFORMANCE CHARACTERISTICS
PFI Hysteresis vs Temperature
Reset Timeout Period vs
Temperature
RST, PFO Voltage Output Low
vs Sink Current
RST, PFO Voltage Output High
vs Source Current
RST, PFO Voltage Output High
vs V
CC
RST, PFO Pin Source Current
vs V1
Normalized Reset and Power-Fail
Threshold Voltages vs Temperature
Quiescent Supply Current
vs Temperature
Allowable Glitch Duration
vs Overdrive
TEMPERATURE (°C)
–50
0.985
NORMALIZED THRESHOLD VOLTAGE (V/V)
0.990
0.995
1.000
1.005
0 50
100
125
2911 G01
1.010
1.015
–25 25
75
TEMPERATURE (°C)
–50
0
QUIESCENT SUPPLY CURRENT (µA)
10
20
30
40
0 50
100
125
2911 G02
50
60
–25 25
75
I
V2
FOR LTC2911-1
OVERDRIVE (%)
0.1
0
GLITCH DURATION (µs)
300
400
500
1 10 100
2911 G03
200
100
T
AMB
(°C)
–50
HYSTERESIS (mV)
16.0
17.0
125
2911 G04
15.0
14.0
0
50
100
–25
25
75
18.0
15.5
16.5
14.5
17.5
TEMPERATURE (°C)
–50
140
TIMEOUT PERIOD (ms)
160
180
200
220
0 50
100
125
2911 G05
240
260
–25 25
75
INTERNAL
EXTERNAL
C
TMR
= 22nF
SINK CURRENT (mA)
0
0
VOLTAGE OUTPUT LOW (V)
0.2
0.4
0.6
0.8
1.0
5
10 15 20
2911 G06
25 30
–40°C
25°C
85°C
125°C
150°C
V
CC
= 3V
SOURCE CURRENT (µA)
0
VOLTAGE OUTPUT HIGH (V)
2.0
2.5
3.0
15 25
2911 G07
1.5
1.0
5 10
20 30
35
0.5
0
V1 = 3.135V, V2 = 5V FOR RST
V
CC
(V)
0
–1
VOLTAGE OUTPUT HIGH (V)
0
2
3
4
6
0.5
2.5
3.5
2911 G08
1
5
2
4.5
5.55
1
1.5
3 4
V1 = V2 = ADJ = PFI
10k PULL-UP TO V
CC
RST FOR
LTC2911-1
RST FOR
LTC2911-2
LTC2911-3
LTC2911-4
LTC2911-5
PFO
V1 (V)
OUTPUT SOURCE CURRENT (µA)
60
80
100
2911 G09
40
20
0
10 5 6
2
3
4
RST
PFO