ELECTRONIC_SHUTDOWN

Published:2009/7/19 20:19:00 Author:Jessie | From:SeekIC

Both sections of National LM125 dual tracking regulatorare shut down by TEL-compatible control signal VT which shorts internal reference voltage of reg-ulatorto ground. Q3 acts only as current sink.-T. Smathers and N. Sevastopoulos, LM125/ LM126/LM127 Precision Dual Tracking Regula-tors, National Semiconductor, Santa Clara, CA, 1974, AN-82, p 15.



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