{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"EMC2101-ACZL-TR","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"EMC2101-ACZL-TR","canonicalUrl":"https://icboms.com/microchip/EMC2101-ACZL-TR","factsUrl":"https://icboms.com/api/mcp/products/EMC2101-ACZL-TR","rawCanonicalId":null},"summary":{"shortDescription":"Microchip Technology EMC2101-ACZL-TR fan control and temperature monitor IC, ±3°C max accuracy, internal and external sensor, 2-wire SMBus output, 8-MSOP package, Tape & Reel.","salesMarkdown":"## Fan controller with ±3°C temperature tracking The Microchip EMC2101-ACZL-TR combines fan speed control with a temperature monitor that reads both an internal sensor and an external diode-connected transistor, reporting temperature across a -64°C to 127°C range. Temperature accuracy is specified at ±3°C maximum — tight enough for thermal management in server PSUs, telecom line cards, or industrial controller enclosures where a fan failure or blocked intake drives the junction temperature past the trip point. ## 2-wire SMBus interface and alarm output The device communicates over a 2-wire SMBus and includes a dedicated alarm output that asserts when the measured temperature exceeds the programmed limit — no polling required, the interrupt line pulls low and the host reads the fault register. Supply voltage range is 3V to 3.6V, which matches the 3.3V rail common in mixed-signal designs. Internal topology includes an ADC (Sigma Delta), comparator, fan control logic, multiplexer, and register bank — the sigma-delta ADC digitises the external diode voltage, the comparator checks it against the limit register, and the fan control block adjusts the PWM duty cycle or fan tachometer target.","metaTitle":"Microchip EMC2101-ACZL-TR Fan Controller, ±3°C Accuracy","metaDescription":"Active Microchip EMC2101-ACZL-TR fan controller and temp monitor, ±3°C max accuracy, internal/external sensor, 2-wire SMBus output, 8-MSOP package.","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)","Accuracy":"±3°C(Max)","Function":"Fan Control, Temp Monitor","Topology":"ADC (Sigma Delta), Comparator, Fan Control, Multiplexer, Register Bank","Output Fan":"Yes","Output Type":"2-Wire SMBus","Sensor Type":"Internal and External","Output Alarm":"Yes","Mounting Type":"Surface Mount","Package / Case":"8-TSSOP, 8-MSOP (0.118\\\", 3.00mm Width)","lifecycle_stage":"eol_hot","Voltage - Supply":"3V ~ 3.6V","Sensing Temperature":"-64°C ~ 127°C","Operating Temperature":"-40°C ~ 125°C","Supplier Device Package":"8-MSOP"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.41","priceTiers":[{"qty":1,"price":"$1.41000","currency":"USD"},{"qty":2500,"price":"$0.82500","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/f8b32ade35612ce72a875ec3d3417f62.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/EMC2101-ACZL-TR/alternatives.json"},"ai":{"faq":[{"question":"What is the EMC2101-ACZL-TR's temperature accuracy and what does it mean for thermal management?","answer":"The EMC2101-ACZL-TR specifies ±3°C maximum accuracy for both internal and external temperature measurements. This means the reported temperature is within 3°C of the actual junction temperature — adequate for setting fan speed ramps and overtemperature alarms in most industrial and telecom equipment, but not tight enough for precision calibration or medical-grade thermal monitoring."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/EMC2101-ACZL-TR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/EMC2101-ACZL-TR when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}