FOD2200T(2004) 查看數據表（PDF） - Fairchild Semiconductor

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FOD2200T
(Rev.:2004)

LOW INPUT CURRENT LOGIC GATE OPTOCOUPLERS

Fairchild Semiconductor 

LOW INPUT CURRENT

LOGIC GATE OPTOCOUPLERS

FOD2200

FOD2200

A

1

VCC 8

B

2

7

RIN

3

6

VFF

4

PULSE GENERATOR +

5

GND

VCM

–

VCC

OUTPUT VO

MONITORING

NODE

0.1 µF

BYPASS

VCM

0V

VOH

OUTPUT

VO

VOL

50 V

SWITCH AT A: IF = 1.6 mA

VO (MIN.)*

SWITCH AT B: IF = 0 mA

VO (MAX.)*

* SEE NOTE 6.

Fig. 3. Test Circuit and Typical Waveforms for Common Mode Transient Immunity

VCC1

(+5 V)

120 pF

1.1

kΩ

1

2

DATA

INPUT

3

TTL OR

TOTEM

LSTTL

4

POLE

OUTPUT

GATE

1

FOD2200

VCC 8

7

6

GND 5

VCC2

(+5 V)

DATA

OUTPUT

UP TO 16

LSTTL

LOADS

OR 4 TTL

LOADS

2

Figure 4. Recommended LSTTL to LSTTL Circuit.

VCC1

(+5 V)

120 pF (OPTIONAL*)

VCC2

(4.5 TO 20 V)

1.1

kΩ

DATA

INPUT

TOTEM

POLE

OUTPUT

GATE

TTL OR

LSTTL

1

FOD2200

1

VCC 8

2

7

3

6

GND

4

5

VCC2

5V

10 V

15 V

20 V

RL

1.1 K

2.37 K

3.83 K

5.11 K

RL

CMOS

2

DATA

OUTPUT

Figure 5. LSTTL to CMOS Interface Circuit.

VCC1 (+5 V)

DATA

INPUT

TTL OR

LSTTL

FOD2200

1.1 kΩ

1

VCC 8

2

D1

3

4

7

6

GND 5

D1 (1N4150) REQUIRED FOR

ACTIVE PULL-UP DRIVER.

Figure 6. Recommended LED Drive Circuit.

VCC (+5 V)

120 pF (OPTIONAL*)

1.1

kΩ

FOD2200

1

VCC 8

2

4.7 kΩ

DATA

INPUT

TTL OR

3

OPEN LSTTL

4

COLLECTOR

GATE

7

6

GND 5

Figure 7. Series LED Drive with Open Collector Gate

(4.7 kΩ Resistor Shunts IOH from the LED).

*The 120pF capacitor may be omitted in applications where 500ns propagation delay is sufficient.

© 2004 Fairchild Semiconductor Corporation

Page 7 of 14

7/7/04

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