H11G2 Просмотр технического описания (PDF) - Motorola => Freescale

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H11G2

6-Pin DIP Optoisolators Darlington Output(On-Chip Resistors)

Motorola => Freescale 

H11G1 H11G2 H11G3

INTERFACING TTL OR CMOS LOGIC TO 50–VOLT, 1000–OHMS RELAY

FOR TELEPHONY APPLICATIONS

In order to interface positive logic to negative–powered electromechanical relays, a change in voltage level and polarity plus

electrical isolation are required. The H11Gx can provide this interface and eliminate the external amplifiers and voltage divider

networks previously required. The circuit below shows a typical approach for the interface.

VDD

R

TO 1

CMOS

5V

180 Ω

1/4 W

TO 2

TO 1

TTL

TO 2

H11Gx

1

6

2

5

3

4

RELAY GROUND

50 mA

1000 Ω

1N4004

–50 V

4

Motorola Optoelectronics Device Data

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