7555CBA(2002) 查看數據表（PDF） - Intersil

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7555CBA
(Rev.:2002)

General Purpose Timers

Intersil 

ICM7555, ICM7556

Typical Performance Curves (Continued)

8

TA = 25oC

6

4

2

RA = RB = 10MΩ

C = 100pF

0

2

RA = RB = 10kΩ

4

C = 0.1µF

6

8

0.1

1.0

10.0

100.0

SUPPLY VOLTAGE (V)

FIGURE 10. NORMALIZED FREQUENCY STABILITY IN THE

ASTABLE MODE vs SUPPLY VOLTAGE

600

VDD = 5V

500

400

300

200

TA = 70oC

TA = 25oC

100

TA = -20oC

0

0

10

20

30

40

LOWEST VOLTAGE LEVEL OF TRIGGER PULSE (%VDD)

FIGURE 12. PROPAGATION DELAY vs VOLTAGE LEVEL OF

TRIGGER PULSE

1.0

100m

10m

1m

100µ

10µ

1µ

100n

10n

1n

100p

10p

1p

0.1

TA = 25oC

(RA + 2RB)

1kΩ

10kΩ

100kΩ

1MΩ

10MΩ

100MΩ

1

10 100 1K 10K 100K 1M 10M

FREQUENCY (Hz)

FIGURE 14. FREE RUNNING FREQUENCY vs RA, RB AND C

100

10.0

TA = 25oC

VDD = 18V

1.0

VDD = 5V

VDD = 2V

0.1

0.01

0.1

1.0

10.0

DISCHARGE LOW VOLTAGE (V)

FIGURE 11. DISCHARGE OUTPUT CURRENT vs DISCHARGE

OUTPUT VOLTAGE

+1.0

+0.9

+0.8

RA = RB = 10kΩ

C = 0.1µF

+0.7

+0.6

+0.5

VDD = 5V

+0.4

+0.3

VDD = 18V

+0.2

+0.1

VDD = 2V

0 VDD = 2V

-0.1

-20

0

20

40

60

80

TEMPERATURE (oC)

FIGURE 13. NORMALIZED FREQUENCY STABILITY IN THE

ASTABLE MODE vs TEMPERATURE

1.0

100m

TA = 25oC

10m

RA

1m

100µ

10µ

1µ

100n

10n

1kΩ

10kΩ

100kΩ

1MΩ

10MΩ

100MΩ

1n

100p

10p

1p

100n 1µ 10µ 100µ 1m 10m 100m 1

10

TIME DELAY (s)

FIGURE 15. TIME DELAY IN THE MONOSTABLE MODE vs

RA AND C

7

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