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IL3085 Datasheet(PDF) 1 Page - NVE Corporation |
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IL3085 Datasheet(HTML) 1 Page - NVE Corporation |
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1 / 20 page  IL3085 IsoLoop ® is a registered trademark of NVE Corporation. *U.S. Patent number 5,831,426; 6,300,617 and others. REV. J NVE Corporation 11409 Valley View Road, Eden Prairie, MN 55344-3617 (952) 829-9217 www.nve.com YouTube.com/NveCorporation ©NVE Corporation Low-Cost Isolated RS-485 Transceivers Functional Diagrams DE D R RE ISODE A B IL3085-1 XDE ISOR (QSOP) DE D R RE ISODE A B IL3085-3 XDE (narrow-body) DE D R RE ISODE A B IL3085 (wide-body) VID (A-B) DE RE R D Mode Notes ≥ 200 mV L L H X Receive ≤−200mV L L L X Open L L H X A/B failsafe ≥ 1.5 V H L H H Drive R reads back D information ≤−1.5 V H L L L ≥ 1.5 V H H Z H R tri-state (no output) ≤−1.5 V H H Z L X L H Z X Disabled R tri-state; A/B failsafe Features • 4 Mbps data rate • Supports up to 32 nodes • 3 V to 5 V power supplies • 50 kV/μs typ.; 30 kV/μs min. common mode transient immunity • Low quiescent supply current • 44000 year barrier life • 7 kV bus ESD protection • Low EMC footprint • Thermal shutdown protection • −40 °C to +85 °C and −40 °C to +125 °C versions • Meets or exceeds ANSI RS-485 and ISO 8482:1987(E) • 2500 VRMS isolation voltage per UL 1577 • VDE V 0884-11/IEC 60747-17:2020 certified; UL 1577 recognized • QSOP, 0.15" SOIC, and 0.3" True 8™ mm 16-pin SOIC packages Applications • Factory automation • Industrial control networks • Building environmental controls • Equipment covered under IEC 61010-1 Edition 3 • 5 kVRMS rated IEC 60601-1 medical applications Description The IL3085 is a galvanically isolated, high-speed differential bus transceiver, designed for bidirectional data communication on balanced transmission lines. The device uses NVE’s patented* spintronic Giant Magnetoresistance (GMR) technology. A unique ceramic/polymer composite barrier provides excellent isolation and virtually unlimited barrier life. The wide-body version provides true 8 mm creepage. Narrow-body and QSOP packages offer unprecedented miniaturization. The IL3085 delivers at least 1.5 V into a 27 Ω load for excellent data integrity over long cable lengths. The device is compatible with 3.3 V input supplies, allowing interface to standard microcontrollers without additional level shifting. Current limiting and thermal shutdown features protect against output short circuits and bus contention that may cause excessive power dissipation. Receiver inputs feature a “fail-safe if open” design, ensuring a logic high R-output if A/B are floating. |
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