ICM7242IBAZ datasheet(7/10 Pages) INTERSIL

Part #	ICM7242IBAZ

Description	Long Range Fixed Timer

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Manufacturer	INTERSIL [Intersil Corporation]

Direct Link	http://www.intersil.com/cda/home

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7

FN2866.4

February 9, 2007

Typical Performance Curves

FIGURE 7. SUPPLY CURRENT vs SUPPLY VOLTAGE

FIGURE 8. RECOMMENDED RANGE OF TIMING

COMPONENT VALUES FOR ACCURATE TIMING

FIGURE 9. TIMEBASE FREE RUNNING FREQUENCY vs R AND C

FIGURE 10. MINIMUM TRIGGER PULSE WIDTH vs TRIGGER

AMPLITUDE

FIGURE 11. MINIMUM RESET PULSE WIDTH vs RESET

AMPLITUDE

FIGURE 12. NORMALIZED FREQUENCY STABILITY IN THE

ASTABLE MODE vs SUPPLY VOLTAGE

SUPPLY VOLTAGE (V)

0

2

4

6

8

10

12

14

16

0

260

240

220

200

180

160

140

120

100

80

60

40

20

TA = -20°C

RESET MODE

TA = +25°C

TA = +75°C

TIMING CAPACITOR, C (µF)

100pF

0.01

1

10

100

1000 10,000

100

100M

10M

1M

100k

10k

1k

0.1

0.001

RECOMMENDED RANGE OF

TIMING COMPONENT VALUES

TA = +25°C

10M

Ω

TIME BASE FREQUENCY (Hz)

0.1

1

10

100

1k

10k

100k

1M

10M

10,000

VDD = 5.0V

TA = +25°C

100k

Ω

10k

Ω

1k

Ω

1M

Ω

1,000

100

10

1

0.1

0.01

0.001

100p

10p

1p

TRIGGER AMPLITUDE (V)

01

234

56

789

10

0

1500

1400

1300

1200

1100

1000

900

800

700

600

500

400

300

200

100

TA = +25°C

VDD = 5V

VDD = 2V

VDD = 16V

RESET AMPLITUDE (V)

0123

45678

9

10

0

1500

1400

1300

1200

1100

1000

900

800

700

600

500

400

300

200

100

TA = 25°C

VDD = 5V

VDD = 2V

VDD = 16V

SUPPLY VOLTAGE (V)

2

1012

14

1618

20

+10.0

+8.0

+6.0

+4.0

+2.0

0.0

-2.0

-4.0

-6.0

-8.0

-10.0

TA = +25°C

R

8

6

4

C

10k

Ω

1M

Ω

1k

Ω

100k

Ω

10k

Ω

100k

Ω

0.001µF

100pF

0.1µF

0.001µF

0.01µF

ICM7242

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