Datasheet

LTC2917/LTC2918
6
29178fb
TEMPERATURE (°C)
–50
NORMALIZED V
MTnn
(%)
0.5
1.0
1.5
25 75
29178 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
29178 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
29178 G03
150
100
50
RESET OCCURS
ABOVE CURVE
TEMPERATURE (°C)
–50 –25
150
RESET TIMEOUT PERIOD, t
RST(INT)
(ms)
190
250
0
50
75
29178 G05
170
230
210
25
100
125
RT = V
CC
TEMPERATURE (°C)
–50 –25
1.0
WATCHDOG TIMEOUT PERIOD, t
WDU(INT)
(ms)
1.4
2.0
0
50
75
29178 G06
1.2
1.8
1.6
25
100
125
WT = V
CC
WT PIN CAPACITANCE, C
WT
(nF)
0.001
1
WATCHDOG TIMEOUT PERIOD, t
WDU(EXT)
(ms)
100
10000
1100.10.01 100
29178 G07
10
1000
SUPPLY CURRENT, I
CC
(mA)
0.01
SHUNT REGULATION VOLTAGE, V
CC(SHUNT)
(V)
6.4
6.6
100
29178 G09
6.2
6.0
0.1
1
10
7.0
6.8
TYPICAL PERFORMANCE CHARACTERISTICS
Threshold Voltage vs
Temperature
Quiescent Supply Current vs
Temperature
Allowable Glitch Duration vs
Magnitude
Reset Timeout Period vs RT
Capacitance
Internal Reset Timeout Period vs
Temperature
Internal Watchdog Timeout
Period vs Temperature
Watchdog Timeout Period vs
Capacitance
Shunt Regulation Voltage vs
Temperature
Shunt Regulation Voltage vs
Supply Current
RT PIN CAPACITANCE, C
RT
(nF)
0.001
0.1
RESET TIMEOUT PERIOD, t
RST(EXT)
(ms)
10
10000
0.10.01 1 10 100 1000
29178 G04
1
100
1000
TEMPERATURE (°C)
–50
6.1
SHUNT REGULATION VOLTAGE, V
CC(SHUNT)
(V)
6.2
6.3
6.4
–25 0 25 50
29178 G08
75 100 125
I
CC
= 5mA
I
CC
= 1mA
I
CC
= 100μA