HT0638 Supertex, Inc., HT0638 Datasheet
HT0638
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HT0638 Summary of contents
Page 1
... Internal pull-up/down resistors allow the inputs to be driven from single-ended sources, push-pull sources, or left unconnected. The HT0638 is powered by the telephone line, and especially useful in applications where external power is not available. Due to its low quiescent current, this device exceeds the on-hook resistance requirements of the telecom standard EIA-470-A ...
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... 100 200 - 300 200 µ 136 µ 136 µ 500 µA 2 HT0638 TPG HKS 8Lead SOIC GND LS2 LS1 4 5 Top View Conditions I = 10µA, HKS, LS1, LS2 open circuit V = 100V, HKS, LS1, LS2, TPG ...
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... vs. R LIMIT SENSE 350 300 250 200 150 100 50 0 100 200 300 400 500 600 700 800 900 1000 R (ohms) SENSE 3 HT0638 Unit Conditions V --- V --- V --- V --- V --- V --- 4.5V TPG 4.5V TPG Switch State ON ...
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... SOIC (Narrow Body) LG Package Outline 6.00 ± 0.20 3.90 ± 0.10 1.75 MAX 0.10 - 0.25 Notes: (The package drawing(s) in this data sheet may not refl ect the most current specifi cations. For the latest package outline information go to http://www.supertex.com/packaging.html.) Doc.# DSFP-HT0638 NR111006 4.90 ± 0.10 8 Note 2 1 Top View 1.25 MIN ...