HCPL0638_09 Datasheet, PDF(13/18 Page) Fairchild Semiconductor – The HCPL06XX optocouplers consist of an AlGaAS LED, optically coupled to a very high speed integrated photo-detector logic gate with a strobable output (single channel devices).

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HCPL0638_09 Datasheet, PDF (13/18 Pages) Fairchild Semiconductor – The HCPL06XX optocouplers consist of an AlGaAS LED, optically coupled to a very high speed integrated photo-detector logic gate with a strobable output (single channel devices).

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VFF

Dual Channel

VCC 8

GND 5

+3.3V

0.1ÂµF

Bypass

Output VO

Monitoring

Node

VCM

+â

Pulse

Generator

ZO = 50 â¦

Test Circuit for HCPL0637, HCPL0638 and HCPL0639

VCM

Peak

3.3V

0.5 V

Switching Pos. (A), IF= 0

VO (Min)

VO (Max)

Switching Pos. (B), IF= 7.5 mA

CM H

CM L

Fig. 23 Test Circuit Common Mode Transient Immunity

(HCPL0637, HCPL0638 and HCPL0639)

HCPL06XX Rev. 1.0.8

www.fairchildsemi.com

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