{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"PD70224ILQ-TR","brand":"Microchip Technology","brandSlug":"microchip","productSlug":"PD70224ILQ-TR","canonicalUrl":"https://icboms.com/microchip/PD70224ILQ-TR","factsUrl":"https://icboms.com/api/mcp/products/PD70224ILQ-TR","rawCanonicalId":null},"summary":{"shortDescription":"Microchip PD70224ILQ-TR, FET-Based Bridge Rectifier, Power Over Ethernet (PoE), N-Channel, 1.5A Output, 57V Supply, 900 µA Supply Current, -40°C to 125°C, 40-QFN (6x8).","salesMarkdown":"## FET-based bridge rectifier for PoE — what it replaces The Microchip PD70224ILQ-TR is a FET-based bridge rectifier designed specifically for Power over Ethernet (PoE) powered device (PD) interfaces. Instead of a conventional diode bridge with its 0.7–1.0 V per-diode drop, this part uses N-Channel MOSFETs as the bridge elements, which cuts the forward voltage drop significantly — important when you are trying to deliver the full 1.5 A output current to the load at the end of a long cable run. The internal switches are integrated, and the bridge topology uses a 2:1 input-to-output ratio, meaning it rectifies the differential pair from the Ethernet cable into a single DC rail. The 57 V maximum supply rating covers the 48–57 V range that PoE++ (IEEE 802.3bt) Type 4 PSEs can deliver at the source, with margin for transients on the cable. The 900 µA supply current is the quiescent draw of the gate-drive and control circuitry — negligible against the load current, but worth knowing for standby-power budgets in energy-efficient Ethernet designs. ## 1.5 A output — sizing the PoE PD rail The 1.5 A maximum output current is the continuous DC rating after rectification. In a PoE application, this maps to roughly 25.5 W available at the PD assuming a 57 V rail and 85% efficiency through the bridge and downstream DC-DC — enough for a multi-port switch, a pan-tilt-zoom camera with heater, or a thin client. The actual current the Ethernet cable can deliver depends on the PSE class negotiation, but the PD70224ILQ-TR does not become the bottleneck below 1.5 A. ## Package and thermal — 40-QFN with exposed pad The part comes in a 40-TFQFN Exposed Pad package with 32 leads, supplier device package 40-QFN (6x8). The 125 °C upper limit is the junction temperature, so the ambient ceiling depends on the thermal design; at 1.5 A output with good board layout, 85 °C ambient is achievable.","metaTitle":"Microchip PD70224ILQ-TR PoE Bridge Rectifier, 1.5A, 57V","metaDescription":"PD70224ILQ-TR FET-based bridge rectifier for Power over Ethernet. 1.5A max output, 57V max supply, -40°C to 125°C. Active, ROHS3.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Type":"Bridge Rectifier","Package":"Tape & Reel (TR); Cut Tape (CT)","FET Type":"N-Channel","Applications":"Power Over Ethernet (PoE)","Mounting Type":"Surface Mount","Package / Case":"40-TFQFN Exposed Pad, 32 Leads","lifecycle_stage":"eol_hot","Current - Supply":"900 µA","Voltage - Supply":"57V (Max)","Internal Switch(s)":"Yes","Ratio - Input:Output":"Bridge (2)","Operating Temperature":"-40°C ~ 125°C","Current - Output (Max)":"1.5A","Supplier Device Package":"40-QFN (6x8)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$4.36","priceTiers":[{"qty":1,"price":"$4.36000","currency":"USD"},{"qty":25,"price":"$3.63000","currency":"USD"},{"qty":100,"price":"$3.51250","currency":"USD"},{"qty":2000,"price":"$3.51250","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/d1d1cc2a263f841f504cc80704cd2311.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/PD70224ILQ-TR/alternatives.json"},"ai":{"faq":[{"question":"What is the maximum output current of PD70224ILQ-TR?","answer":"The maximum continuous output current is 1.5 A. This is the DC rating after the bridge rectifier stage, suitable for PoE++ powered devices drawing up to about 25 W."},{"question":"Is PD70224ILQ-TR RoHS compliant?","answer":"Yes, it is ROHS3 compliant."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/microchip/PD70224ILQ-TR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/microchip/PD70224ILQ-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}}