TL7757_14 Datasheet, PDF (8/20 Pages) Texas Instruments – SUPPLY-VOLTAGE SUPERVISOR AND PRECISION VOLTAGE DETECTOR

TL7757
SUPPLY-VOLTAGE SUPERVISOR
AND PRECISION VOLTAGE DETECTOR
SLVS041I − SEPTEMBER 1991 − REVISED AUGUST 2003
TYPICAL CHARACTERISTICS^†
INPUT THRESHOLD VOLTAGE
(NEGATIVE-GOING V_CC)
vs
FREE-AIR TEMPERATURE
4.6
R_L = 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
T_A − Free-Air Temperature − °C
Figure 10
1000
950
POWER-UP RESET VOLTAGE
vs
FREE-AIR TEMPERATURE
R_L = 2.2 kΩ
900
850
800
750
700
650
600
−100 − 50
0
50
100
150
T_A − Free-Air Temperature − °C
Figure 11
POWER-UP RESET VOLTAGE
AND SUPPLY VOLTAGE
vs
TIME
2
T_A = 25°C
R_L = 2.2 kΩ
1.5
1
V_CC
.5
RESET
0
PROPAGATION DELAY TIME
6
T_A = 25°C
R_L = 2.2 kΩ
5
V_CC
4
3
RESET
2
1
− 0.5
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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