{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MAX6620ATI+","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"MAX6620ATI","canonicalUrl":"https://icboms.com/analog-devices/MAX6620ATI","factsUrl":"https://icboms.com/api/mcp/products/MAX6620ATI%2B","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices MAX6620ATI+, I2C Fan Speed Controller, 4 High-Side Pre-Drivers, 3V to 5.5V Supply, -40°C to +125°C, 28-TQFN (5x5) Exposed Pad, Tube.","salesMarkdown":"## I2C fan speed controller for four independent channels The MAX6620ATI+ from Analog Devices (formerly Maxim Integrated) is a dedicated fan speed controller that manages up to four brushed DC fans via an I2C interface. It outputs four high-side pre-driver signals to drive external N-channel MOSFETs, giving the system designer control over fan voltage and speed without burdening the main MCU with PWM generation or tachometer polling. ## Four high-side pre-drivers — what that means for the BOM The four pre-driver outputs are high-side only, meaning each channel drives the gate of an external N-channel MOSFET that switches the fan's positive supply rail. The controller handles the closed-loop speed regulation and tachometer feedback decoding internally, so the external BOM per fan is just one MOSFET plus a few passives — no separate PWM generator or op-amp for tach signal conditioning. Pre-driver outputs drive external N-channel MOSFETs. ## Package and mounting Housed in a 28-TQFN (5x5 mm) package with an exposed pad, the MAX6620ATI+ requires a surface-mount reflow process. The exposed pad must be soldered to a thermal land on the PCB for adequate heat dissipation — the part can draw enough current through the pre-driver outputs to need that thermal path, especially at the high end of the temperature range. ## Lifecycle and supply position The MAX6620ATI+ carries an active lifecycle status and is ROHS3 compliant. Sourced through independent distribution, this part is available to order against an RFQ.","metaTitle":"MAX6620ATI+ I2C Fan Speed Controller, 3V-5.5V, 28-TQFN","metaDescription":"MAX6620ATI+ I2C fan controller from Analog Devices. 4 high-side pre-drivers, -40°C to +125°C range, 3V-5.5V supply. Active production, ROHS3.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Package":"Tube","Function":"Controller - Speed","Interface":"I²C","Applications":"Fan Controller","Mounting Type":"Surface Mount","Package / Case":"28-WFQFN Exposed Pad","lifecycle_stage":"eol_hot","Voltage - Supply":"3V ~ 5.5V","Motor Type - AC, DC":"Brushed DC","Output Configuration":"Pre-Driver - High Side (4)","Operating Temperature":"-40°C ~ 125°C (TA)","Supplier Device Package":"28-TQFN (5x5)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$7.04","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$7.04000","currency":"USD"},{"qty":10,"price":"$6.36400","currency":"USD"},{"qty":25,"price":"$6.06800","currency":"USD"},{"qty":100,"price":"$5.26880","currency":"USD"},{"qty":250,"price":"$5.03200","currency":"USD"},{"qty":500,"price":"$4.58800","currency":"USD"},{"qty":1000,"price":"$4.44000","currency":"USD"}]},"links":{"datasheetUrl":"https://datasheets.maximintegrated.com/en/ds/MAX6620.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Does MAX6620ATI+ work with 5V fans?","answer":"Yes. The supply range of 3V to 5.5V covers 5V operation directly. The high-side pre-driver outputs control external N-channel MOSFETs that switch the fan's positive rail, so the fan voltage is whatever you supply to the drain of the external FET — the controller itself runs on 3V to 5.5V."},{"question":"Can MAX6620ATI+ replace EMC2101?","answer":"Both parts are I2C fan controllers, but the EMC2101 includes an integrated fan driver while the MAX6620ATI+ uses external N-channel MOSFETs. The replacement depends on your board's existing external FET stage and control register map — the evidence does not confirm direct compatibility."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/MAX6620ATI","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/MAX6620ATI when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}