Datasheet

LTC2919
5
2919f
Propagation Delay vs Overdrive
Reset Timeout Period
vs Capacitance
Reset Timeout Period
vs Temperature
Shunt Regulation Voltage
vs Temperature
OUT1, OUT2, RST Output Voltage
vs V
CC
OUT1, OUT2, RST Pull-Down
Current vs V
CC
TYPICAL PERFOR A CE CHARACTERISTICS
UW
T
A
= 25°C unless otherwise noted.
TEMPERATURE (°C)
–50
6.0
SHUNT REGULATOR VOLTAGE, V
CC(SHUNT)
(V)
6.4
7.0
0
50
75
2919 G10
6.2
6.8
6.6
–25
25
100
150125
I
CC
= 10mA
I
CC
= 1mA
I
CC
= 100µA
OUT1, OUT2, RST Output Voltage
vs V
CC
Shunt Regulation Voltage
vs Supply Current
SUPPLY CURRENT, I
CC
(mA)
SHUNT REGULATION VOLTAGE, V
CC(SHUNT)
(V)
6.4
7.6
7.2
6.8
0.01 1 10 100
2919 G11
6.0
0.1
T
A
= 25°C
SUPPLY VOLTAGE, V
CC
(V)
0
OUTPUT VOLTAGE (V)
3
4
5
4
2919 G12
2
1
0
1
2
3
5
LTC2919-2.5 LTC2919-5
LTC2919-3.3
ADJ1 = 0.55V
ADJ2 = 0.45V
SEL = OPEN
10k PULL-UP R TO V
CC
SUPPLY VOLTAGE, V
CC
(V)
0
0
OUTPUT VOLTAGE (V)
0.1
0.2
0.3
0.4
0.1 0.2 0.3 0.4
2919 G13
0.5 0.6 0.7 0.8
WITH 10k PULL-UP
WITH 100k PULL-UP
V
CC
SUPPLY VOLTAGE, V
CC
(V)
0
0
OUTPUT PULL-DOWN CURRENT (mA)
1
2
3
4
5
6
1234
2919 G14
5
ADJ1 = 0.45V
ADJ2 = 0.55V
SEL = OPEN
OUTPUT AT 150mV
OUTPUT AT 50mV
OUT1, OUT2, RST Pull-Down
Current vs V
CC
SUPPLY VOLTAGE, V
CC
(V)
0.01
OUTPUT PULL-DOWN CURRENT (mA)
0.1
1
0 0.4 0.6 0.8
0.001
0.0001
0.2
1
2919 G15
OUTPUT AT 150mV
OUTPUT AT 50mV
GLITCH PERCENTAGE PAST THRESHOLD (%)
0.1
400
PROPAGATION DELAY (µs)
500
600
700
1 10 100
2919 G07
300
200
100
0
TMR PIN CAPACITANCE, C
TMR
(nF)
10
RESET TIMEOUT PERIOD, t
RST
(ms)
100
1000
10000
0.1 10 100 1000
2919 G08
1
1
TEMPERATURE (°C)
–50
RESET TIMEOUT PERIOD, t
RST
(ms)
220
240
260
25 75
2919 G09
200
180
–25 0
50 100 150125
160
140
INTERNAL
EXTERNAL, C
TMR
= 22nF