TL7757 Datasheet, PDF (9/11 Pages) Texas Instruments – SUPPLY-VOLTAGE SUPERVISOR AND PRECISION VOLTAGE DETECTOR

TL7757
SUPPLY-VOLTAGE SUPERVISOR
AND PRECISION VOLTAGE DETECTOR
SLVS041E – SEPTEMBER 1991 – REVISED JULY 1999
TYPICAL CHARACTERISTICS^†
INPUT THRESHOLD VOLTAGE
(NEGATIVE-GOING V_CC)
vs
FREE-AIR TEMPERATURE
4.6
RL = 0
4.59
4.58
4.57
4.56
4.55
4.54
4.53
4.52
4.51
4.5
–100 – 50
0
50
100
150
TA – Free-Air Temperature – °C
Figure 10
1000
950
POWER-UP RESET VOLTAGE
vs
FREE-AIR TEMPERATURE
RL = 2.2 kΩ
900
850
800
750
700
650
600
–100 – 50
0
50
100
150
TA – Free-Air Temperature – °C
Figure 11
POWER-UP RESET VOLTAGE
AND SUPPLY VOLTAGE
vs
TIME
2
TA = 25°C
RL = 2.2 kΩ
1.5
1
VCC
.5
RESET
0
– 0.5
PROPAGATION DELAY TIME
6
TA = 25°C
RL = 2.2 kΩ
5
VCC
4
3
RESET
2
1
0
–1
0
0.5
1
1.5
2
2.5
3
t – Time – µs
Figure 12
–1
0 2 4 6 8 10 12 14 16 18
t – Time – µs
Figure 13
† _{Data at high and low temperatures are applicable only within the rated operating free-air temperature ranges of the various devices.}
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