H11AG1300 Ver la hoja de datos (PDF) - Fairchild Semiconductor

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componentes Descripción

Fabricante

H11AG1300

PHOTOTRANSISTOR OPTOCOUPLERS

Fairchild Semiconductor 

PHOTOTRANSISTOR OPTOCOUPLERS

H11AG1

H11AG2

H11AG3

47Ω

≤ 25A

LOAD

+5V 15K

H11AG1

CMOS

CONTROL

≥ 0.16mA

75KΩ

47Ω

1.5MΩ

SC160B

22K

2N4256

150pF

C203D

DT230H

(4)

0.1

V130LA20A

120V

60Hz

SUPPLY

Figure 8. CMOS Input, 3KW, Zero Voltage Switching Solid State Relay

The H11AG1’s superior performance at low input currents allows standard CMOS logic circuits to directly operate a 25A solid state relay.

Circuit operation is as follows: power switching is provided by the SC160B, 25A triac. Its gate is controlled by the C203B via the DT230H

rectifier bridge. The C203B turn-on is inhibited by the 2N4256 when line voltage is above 12V and/or the H11AG is off. False trigger and

dv/dt protection are provided by the combination of the MOV varistor and RC snubber network.

R1

AC

INPUT

VOLTAGE

1N148

C1

H11AG1

4.7MΩ

47KΩ

C2

0.1

3V ≤ VCC ≤ 10V

4093 or

74HC14

4.7KΩ

INPUT

40-90 VRMS

20 Hz

95-135 VRMS

60 Hz

200-280 VRMS

50/60 Hz

R1

75 K

1/10 W

180 K

1/10 W

390 K

1/4 W

C1

0.1 µF

100 V

12 ηF

200 V

6.80 ηF

400 V

Z

109K

285K

550K

DC component of input voltage is ignored due to C1

Figure 9. Telephone Ring Detector/A.C. Line CMOS Input Isolator

The H11AG1 uses less input power than the neon bulb traditionally used to monitor telephone and line voltages. Additionally. response

time can be tailored to ignore telephone dial tap, switching transients and other undesired signals by modifying the value of C2. The high

impedance to line voltage also can simply board layout spacing requirements.

DS300213 1/28/02

5 OF 8

www.fairchildsemi.com

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