{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MIC2842AYMT-TR","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"MIC2842AYMT-TR","canonicalUrl":"https://icboms.com/microchip/MIC2842AYMT-TR","factsUrl":"https://icboms.com/api/mcp/products/MIC2842AYMT-TR","rawCanonicalId":null},"summary":{"shortDescription":"Microchip MIC2842AYMT-TR linear LED driver, 4 outputs 20 mA each, single-wire dimming, 3V-5.5V supply, -40°C to 125°C, 10-TMLF 2x2 mm package.","salesMarkdown":"## Four-channel linear LED driver for portable backlight and flash The Microchip MIC2842AYMT-TR is a linear LED driver with four regulated outputs, each rated for 20 mA per channel. It uses a single-wire dimming interface, which keeps the MCU connection to one GPIO pin while controlling brightness across all four channels. Target applications include LCD backlight and camera flash in handheld devices, where the linear topology avoids the switching noise and inductor footprint of a boost converter. ## 20 mA per channel — sizing the LED string Each of the four outputs sources 20 mA continuously. For a typical backlight with four white LEDs in parallel, that is 80 mA total from the supply rail. The linear regulator drops the difference between the LED forward voltage and the supply; with a 3V minimum input and a 3.2V typical white LED, the headroom is tight — the supply must stay above the LED stack voltage plus the dropout of the internal current sink. The internal switches are integrated, so no external current-setting resistor or transistor is needed for each channel. ## Single-wire dimming — firmware overhead The dimming interface uses a single-wire protocol, meaning one digital output from the host MCU controls brightness for all four channels simultaneously. No PWM timer channel per LED is required, which saves timer resources on small-pin-count controllers. The protocol timing is defined in the datasheet; expect a few hundred microseconds of firmware overhead per brightness update. ## 10-TMLF 2x2 mm — board area and thermal relief The 10-TMLF package measures 2x2 mm with an exposed pad. It is ROHS3 compliant.","metaTitle":"MIC2842AYMT-TR Linear LED Driver, 4-Ch 20 mA","metaDescription":"MIC2842AYMT-TR linear LED driver from Microchip. 4 outputs at 20 mA each, single-wire dimming, -40°C to 125°C range.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Type":"Linear","Dimming":"Single-Wire","Package":"Tape & Reel (TR); Cut Tape (CT)","Applications":"Backlight, Camera Flash","Mounting Type":"Surface Mount","Package / Case":"10-UFDFN Exposed Pad, 10-TMLF®","lifecycle_stage":"eol_hot","Number of Outputs":"4","Internal Switch(s)":"Yes","Operating Temperature":"-40°C ~ 125°C (TJ)","Voltage - Supply (Max)":"5.5V","Voltage - Supply (Min)":"3V","Supplier Device Package":"10-TMLF® (2x2)","Current - Output / Channel":"20mA"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.76","priceTiers":[{"qty":1,"price":"$0.76000","currency":"USD"},{"qty":25,"price":"$0.63600","currency":"USD"},{"qty":100,"price":"$0.56180","currency":"USD"},{"qty":5000,"price":"$0.58500","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/6f32e8e4b435ac7679838b32e0880dea.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/MIC2842AYMT-TR/alternatives.json"},"ai":{"faq":[{"question":"What is the dimming interface for the MIC2842AYMT-TR?","answer":"The dimming interface is single-wire. One digital output from the host MCU controls brightness for all four channels simultaneously, saving timer resources on small-pin-count controllers."},{"question":"Can the MIC2842AYMT-TR drive high-power LEDs?","answer":"No, each channel is rated for 20 mA maximum. This part is designed for indicator, backlight, and small flash LEDs. For high-power LEDs requiring hundreds of milliamps, a different driver topology would be needed."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/MIC2842AYMT-TR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/MIC2842AYMT-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}}