ALD2502 datasheet(4/10 Pages) ALD

Part #	ALD2502

Description	SINGLE/DUAL PRECISION HIGH SPEED MICROPOWER TIMER

Download	10 Pages

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Manufacturer	ALD [Advanced Linear Devices]

Direct Link	http://www.aldinc.com

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ALD1502/ALD2502

Advanced Linear Devices

4 of 10

TYPICAL APPLICATIONS (EACH TIMER)

TYPICAL PERFORMANCE CHARACTERISTICS (cont'd)

ASTABLE MODE OPERATION

50% DUTY CYCLE

1

2

3

4

8

7

6

5

R

C

0.1µF

Frequency f = 1/ (1.4 RC)

V+

ASTABLE MODE OPERATION

(FREE RUNNING OSCILLATOR)

MONOSTABLE MODE OPERATION (ONE SHOT PULSE)

Pulse Delay td = 1.1 RC

1

2

3

4

8

7

6

5

C

0.1µF

RA

V+

RB

Frequency f = 1.46 / (RA + 2RB)C

Duty Cycle DC = RB / (RA + 2RB)

TRIGGER

INPUT

DELAYED PULSE

OUTPUT

1

2

3

4

8

7

6

5

0.1µF

C

R

RESET

V+

OUTPUT SINK CURRENT AS A

FUNCTION OF OUTPUT VOLTAGE

OUTPUT VOLTAGE (V)

0.01

0.02

0.05

0.1

1.0

0.5

0.2

100

50

20

5.0

2.0

1.0

0.5

0.2

0.1

10

V+ = 12V

V+ = 2V

TA = 25°C

V+ = 5V

OUTPUT SOURCE CURRENT AS A

FUNCTION OF OUTPUT VOLTAGE

-1.0

-2.0

-5.0

-10

-20

-50

-100

-0.5

-0.2

-0.1

-0.05

-0.02

-0.01

-0.2

-0.1

-1.0

OUTPUT VOLTAGE (V)

(REFERENCED TO V+)

V+ = 2V

V+ = 5V

V+ = 12V

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