Datasheet

LTC2915/LTC2916
5
29156fa
TYPICAL PERFORMANCE CHARACTERISTICS
Internal Reset Timeout Period vs
Temperature
Shunt Regulation Voltage vs
Temperature
Shunt Regulation Voltage vs
Supply Current
Threshold Voltage vs
Temperature
Quiescent Supply Current vs
Temperature
Allowable Glitch Duration vs
Magnitude
T
A
= 25°C unless otherwise noted.
RST Output Voltage vs V
CC
RST Pull-Down Current vs V
CC
RST V
OL
vs I
RST
TEMPERATURE (°C)
–50
NORMALIZED V
MTnn
(%)
0.5
1.0
1.5
25 75
29156 G01
0
–0.5
–25 0
50 100 125
–1.0
–1.5
V
MT120
V
MTADJ
V
MT25
TEMPERATURE (°C)
–50
20
QUIESCENT SUPPLY CURRENT, I
CC
(μA)
25
30
35
40
–25 0 25 50
29156 G02
75 100 125
SEL1 = 0V
SEL2 = 2.5V
TOL = OPEN
V
CC
= 5.5V
V
CC
= 2.5V
V
CC
= 1.5V
GLITCH PERCENTAGE PAST THRESHOLD (%)
0.1
0
MAXIMUM ALLOWABLE GLITCH DURATION (μs)
200
250
300
1 10 100
29156 G03
150
100
50
RESET OCCURS
ABOVE CURVE
TEMPERATURE (°C)
–50 –25
150
RESET TIMEOUT PERIOD (ms), t
RST(INT)
190
250
0
50
75
29156 G04
170
230
210
25
100
125
RT = V
CC
SUPPLY CURRENT, I
CC
(mA)
0.01
SHUNT REGULATION VOLTAGE, V
CC(SHUNT)
(V)
6.4
6.6
100
29156 G06
6.2
6.0
0.1
1
10
7.0
6.8
TEMPERATURE (°C)
–50
6.1
SHUNT REGULATION VOLTAGE, V
CC(SHUNT)
(V)
6.2
6.3
6.4
–25 0 25 50
29156 G05
75 100 125
I
CC
= 5mA
I
CC
= 1mA
I
CC
= 100μA
SUPPLY VOLTAGE, V
CC
(V)
0
0
RST VOLTAGE (V)
1
2
3
4
5
6
1234
29156 G07
5
100k PULL-UP TO V
CC
SEL1 = SEL2 = TOL = 0V
V
M
= 0.5V
SUPPLY VOLTAGE, V
CC
(V)
0
0
PULL-DOWN CURRENT, I
RST
(mA)
1
2
3
4
5
6
1234
29156 G08
5
RST AT 150mV
RST AT 50mV
I
RST
(mA)
0
RST VOLTAGE (V)
0.6
0.8
1.0
8
29156 G09
0.4
0.2
0
2
4
6
10
T
A
= 125°C
T
A
= 25°C
T
A
= –40°C
NO PULL-UP R
V
CC
= 2.5V