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AN-960 Open Fail-Safe

Question asked by Terumasa on Feb 14, 2014
Latest reply on Feb 18, 2014 by Terumasa

Hello

AN-960 P.6 _section of Open Fail-Safe  describes below about bias resistor.

Please let me know your advice if R=960 ohm at VCC=3V is typo.

I think that R at VCC=3V is 840 ohm .

 

R1 = R2 = R

VIA – VIB ≥ 200 mV

VIA – VIB = RT = 200 mV

if VCC = 5 V, then R = 1440 Ω

if VCC = 3 V, then R = 960 Ω

 

Regards,

Terumasa

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