TL7757CD datasheet(8/20 Pages) TI1

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TL7757

SUPPLY-VOLTAGE SUPERVISOR

AND PRECISION VOLTAGE DETECTOR

SLVS041I − SEPTEMBER 1991 − REVISED AUGUST 2003

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

TYPICAL CHARACTERISTICS†

Figure 10

4.55

4.54

4.52

4.51

4.5

4.59

4.53

−100

− 50

4.57

4.56

4.58

INPUT THRESHOLD VOLTAGE

(NEGATIVE-GOING VCC)

FREE-AIR TEMPERATURE

4.6

100

150

RL = 0

TA − Free-Air Temperature − °C

900

850

800

750

−100

− 50

100

950

POWER-UP RESET VOLTAGE

FREE-AIR TEMPERATURE

1000

150

700

650

600

TA − Free-Air Temperature − °C

RL = 2.2 kΩ

Figure 11

− 0.5

−1

0.5

1.5

POWER-UP RESET VOLTAGE

AND SUPPLY VOLTAGE

TIME

1.5

2.5

VCC

t − Time −

µs

TA = 25°C

RL = 2.2 kΩ

RESET

Figure 12

−1

PROPAGATION DELAY TIME

TA = 25°C

RL = 2.2 kΩ

VCC

RESET

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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