{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LTC2947IUFE#TRPBF","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"LTC2947IUFETRPBF","canonicalUrl":"https://icboms.com/analog-devices/LTC2947IUFETRPBF","factsUrl":"https://icboms.com/api/mcp/products/LTC2947IUFE%23TRPBF","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices LTC2947 single-phase energy monitor, I2C/SPI interface, 32-WFQFN exposed pad package, Tape & Reel, 4.5-15 V supply, 1.2% measurement error, -40°C to 85°C.","salesMarkdown":"## What the 1.2% measurement error means for your BOM The LTC2947IUFE#TRPBF is a single-phase energy monitor from Analog Devices, communicating over I2C or SPI. Its 1.2% total measurement error covers the full signal chain from the sense resistor through the ADC — you budget that as the worst-case accuracy floor, not a typical. For a 12 V rail at 5 A, that is ±60 mV and ±60 mA at the extremes, which is tight enough for board-level power accounting but not for revenue-grade metering. ## Supply range and temperature grade Operates from 4.5 V to 15 V, covering common 5 V and 12 V rails without an external regulator. The -40°C to 85°C range is industrial grade — suitable for outdoor telecom cabinets, motor drives, and factory-floor enclosures where the ambient can swing. The 6 mA supply current is the IC's own draw; the sense resistor burden adds to the system power budget. ## Package and footprint — 32-QFN with exposed pad Housed in a 32-WFQFN with exposed pad, 4x6 mm body. The exposed paddle must be soldered to a ground plane for thermal and electrical contact — the datasheet's recommended land pattern is non-negotiable for keeping the junction temperature within limits at the full 15 V supply. Surface-mount only. ## Active production and packaging options Analog Devices lists this part as active with ROHS3 compliance. The #TRPBF suffix denotes Tape & Reel packaging; the same die in tube form is LTC2947IUFE#PBF. The reel quantity suits automated pick-and-place for medium-to-high-volume builds; for prototype or low-volume runs the tube variant may be more economical.","metaTitle":"LTC2947IUFE#TRPBF Energy Monitor, I2C/SPI, 32-QFN","metaDescription":"Active production LTC2947IUFE#TRPBF single-phase energy monitor from Analog Devices. 4.5-15V supply, 1.2% measurement error, -40°C to 85°C. Tape & Reel.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Package":"Tape & Reel (TR); Cut Tape (CT)","Meter Type":"Single Phase","Mounting Type":"Surface Mount","Package / Case":"32-WFQFN Exposed Pad","lifecycle_stage":"eol_hot","Current - Supply":"6mA","Voltage - Supply":"4.5 V ~ 15 V","Measurement Error":"1.2%","Operating Temperature":"-40°C ~ 85°C","Supplier Device Package":"32-QFN (4x6)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$15.0","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$15.00000","currency":"USD"},{"qty":10,"price":"$13.78200","currency":"USD"},{"qty":25,"price":"$13.21040","currency":"USD"},{"qty":100,"price":"$11.63930","currency":"USD"},{"qty":250,"price":"$11.06808","currency":"USD"},{"qty":500,"price":"$10.35402","currency":"USD"},{"qty":1000,"price":"$9.49713","currency":"USD"},{"qty":2500,"price":"$9.14010","currency":"USD"}]},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"What is the difference between LTC2947IUFE#TRPBF and LTC2947IUFE#PBF?","answer":"The only difference is packaging: LTC2947IUFE#TRPBF ships in Tape & Reel, while LTC2947IUFE#PBF ships in a tube. The die, the 32-QFN package, the electrical specs, and the temperature grade are identical. Either variant fits the same PCB footprint."},{"question":"What compliance documentation does Analog Devices provide for LTC2947IUFE#TRPBF?","answer":"The part is ROHS3 compliant. Analog Devices typically provides a RoHS certificate and material declaration on request."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/LTC2947IUFETRPBF","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/LTC2947IUFETRPBF when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:45:10.375Z","lastPublished":"2026-07-22T19:45:10.375Z","indexable":true}}