{"schemaVersion":1,"slug":"power-rail-enable-interface","name":"Power-rail enable interface","kind":"symbol","abbreviation":"EN","aliases":["Power-rail enable interface","Power-rail enable interface functional block","Power-rail enable interface schematic reference"],"category":"logic-signals","drawingTypes":["Schematic"],"referenceFamilies":["Manufacturer"],"summary":"An enable interface requests a selected power supply or switched rail to operate.","description":["An enable interface requests a selected power supply or switched rail to operate.","A sequencer can drive the enable input of a regulator while separately monitoring its status.","Draw enable as a command entering the regulator or switch, and show the resulting supply output separately. If status is returned, label that connection independently. This prevents the command to operate from being mistaken for confirmation that the power rail is healthy. This is original functional artwork, not a certified standard graphic or device pinout."],"readingNotes":["Identify the device receiving enable.","State the enable signal’s active condition.","Show the separate supply output and status feedback if used.","Enable is a command input; power-good is a condition output."],"drawingChecklist":["Identify the device receiving enable.","State the enable signal’s active condition.","Show the separate supply output and status feedback if used."],"distinction":"Enable is a command input; power-good is a condition output.","facts":[{"label":"Representation type","value":"Original functional block; not a certified IEC or IEEE graphic"},{"label":"Concept input","value":"Controller enable command"},{"label":"Concept output","value":"Requested rail operation"}],"references":[{"sourceId":"expansion-20261027-sequencer","relevance":"Power supply sequencing: public technical context for the named function. Product and compliance details remain with the publisher."}],"related":["plc-io","power-rail-sequencer","power-converter","terminal"],"artwork":"expanded-power-rail-enable-interface","publishedOn":"2026-10-27","updatedOn":"2026-10-27","provenance":"independent-public-research","plainEnglish":{"title":"What does Power-rail enable interface mean?","introduction":"An enable interface requests a selected power supply or switched rail to operate.","example":"A sequencer can drive the enable input of a regulator while separately monitoring its status.","drawings":"Draw enable as a command entering the regulator or switch, and show the resulting supply output separately. If status is returned, label that connection independently. This prevents the command to operate from being mistaken for confirmation that the power rail is healthy.","terms":[{"name":"Command","meaning":"A request for a device to take an action."},{"name":"Power-good","meaning":"An indication of the generating device’s specified acceptable-supply conditions."}],"diagram":"flow","caption":"Original functional explanation. Arrows show information or energy roles; two-headed arrows identify two-way interfaces. This is not a pinout, certified standards graphic or complete circuit.","sources":[{"label":"Power supply sequencing","url":"https://www.ti.com/product-category/power-management/sequencers/overview.html"}],"profileId":"researched-functional-reference","checklist":["Identify the device receiving enable.","State the enable signal’s active condition.","Show the separate supply output and status feedback if used."],"questions":[{"question":"Is enable the same as power-good?","answer":"No. Enable requests operation; power-good reports a specified condition. A circuit can assert enable while the supply is still starting or while a fault prevents it reaching the required state."}],"steps":["Controller enable command","Regulator or switch input","Requested rail operation"],"bidirectional":false},"url":"https://eloragrid.ai/symbols/power-rail-enable-interface","illustration":{"url":"https://eloragrid.ai/tools/electrical-library/illustrations/power-rail-enable-interface.svg","scope":"Original educational concept; not an official standard graphic or product footprint","license":"https://creativecommons.org/licenses/by/4.0/"},"sources":[{"id":"expansion-20261027-sequencer","title":"Power supply sequencing","publisher":"Texas Instruments","url":"https://www.ti.com/product-category/power-management/sequencers/overview.html","type":"manufacturer","scope":"Public functional documentation. Original explanatory text and educational block artwork; no publisher graphics or files reproduced.","checkedOn":"2026-10-27","reuse":"link-only","relevance":"Power supply sequencing: public technical context for the named function. Product and compliance details remain with the publisher."}]}