Datasheet IL4622E, IL4685E (NVE)
| Manufacturer | NVE |
| Description | High-Speed Isolated 3.3 V Bus RS-422 / RS-485 Transceivers with Integrated DC-DC Convertors |
| Pages / Page | 25 / 1 — IL4622E / IL4685E. Block Diagrams. Features. Applications. Description. … |
| File Format / Size | PDF / 902 Kb |
| Document Language | English |
IL4622E / IL4685E. Block Diagrams. Features. Applications. Description. Rev. B
Model Line for this Datasheet
Text Version of Document
IL4622E / IL4685E
High-Speed Isolated 3.3 V Bus RS-422 / RS-485 Transceivers with Integrated DC-DC Convertors
Block Diagrams Features
• 40 Mbps transceiver • Integrated ¼ watt, 3.3-to-3.3 V DC-DC convertor • 3.3 V bus • 1/5 Unit Load; 160 node fanout VDD1A VDD2 • 2500 VRMS isolation voltage • Up to 16.5 kV bus ESD protection • Full failsafe • Overcurrent protection DE • Thermal shutdown protection • −40 °C to 85 °C temperature range • Low EMI without ferrite beads • UL1577 listed; VDE V 0884-11 pending Y D • 0.3" True 8™ mm 16-pin SOIC package Z
Applications
A R • Transportation systems B • Factory automation • Industrial control networks RE • Building environmental controls
Description
IL4622 The IL4622E and IL4685E are high-speed, fully-isolated, differential bus transceivers with integrated 3.3-to-3.3 V, one-quarter watt DC-DC convertors to provide a fully- isolated 3.3 V bus supply using the controller (UART) supply. This level of integration dramatically reduces chip VDD1A VDD2A count and board area. The IL4622E has full-duplex connections for RS-422 busses; the IL4685E has a half-duplex transceiver generally used with RS-485. DE The devices use NVE’s proven, patented* spintronic Giant Magnetoresistance (GMR) isolation technology and IsoLoop® high-efficiency micro-scale isolation transformers. D A unique ceramic/polymer composite barrier provides full isolation and virtually unlimited barrier life. Frequency hopping and shielding minimize EMI. A R B Current limiting and thermal shutdown features protect against bus short circuits and contention that may cause excessive power dissipation. RE IL4685 IsoLoop® is a registered trademark of NVE Corporation.
Rev. B
*U.S. Patent number 5,831,426; 6,300,617 and others. NVE Corporation 11409 Valley View Road, Eden Prairie, MN 55344-3617 Phone: (952) 829-9217 YouTube.com/NveCorporation ©NVE Corporation
High-Speed Isolated 3.3 V Bus RS-422 / RS-485 Transceivers with Integrated DC-DC Convertors
Block Diagrams Features
• 40 Mbps transceiver • Integrated ¼ watt, 3.3-to-3.3 V DC-DC convertor • 3.3 V bus • 1/5 Unit Load; 160 node fanout VDD1A VDD2 • 2500 VRMS isolation voltage • Up to 16.5 kV bus ESD protection • Full failsafe • Overcurrent protection DE • Thermal shutdown protection • −40 °C to 85 °C temperature range • Low EMI without ferrite beads • UL1577 listed; VDE V 0884-11 pending Y D • 0.3" True 8™ mm 16-pin SOIC package Z
Applications
A R • Transportation systems B • Factory automation • Industrial control networks RE • Building environmental controls
Description
IL4622 The IL4622E and IL4685E are high-speed, fully-isolated, differential bus transceivers with integrated 3.3-to-3.3 V, one-quarter watt DC-DC convertors to provide a fully- isolated 3.3 V bus supply using the controller (UART) supply. This level of integration dramatically reduces chip VDD1A VDD2A count and board area. The IL4622E has full-duplex connections for RS-422 busses; the IL4685E has a half-duplex transceiver generally used with RS-485. DE The devices use NVE’s proven, patented* spintronic Giant Magnetoresistance (GMR) isolation technology and IsoLoop® high-efficiency micro-scale isolation transformers. D A unique ceramic/polymer composite barrier provides full isolation and virtually unlimited barrier life. Frequency hopping and shielding minimize EMI. A R B Current limiting and thermal shutdown features protect against bus short circuits and contention that may cause excessive power dissipation. RE IL4685 IsoLoop® is a registered trademark of NVE Corporation.
Rev. B
*U.S. Patent number 5,831,426; 6,300,617 and others. NVE Corporation 11409 Valley View Road, Eden Prairie, MN 55344-3617 Phone: (952) 829-9217 YouTube.com/NveCorporation ©NVE Corporation
