20-Mbps full-duplex 2.5-kVrms isolated RS-485/RS-422 transceiver with integrated transformer driver
Product details
Parameters
Package | Pins | Size
Features
- Meets or Exceeds TIA/EIA-485-A
- Signaling Rate up to 20 Mbps
- 1/8 Unit Load – Up to 256 Nodes on a Bus
- Thermal Shutdown Protection
- Typical Efficiency > 60% (ILOAD = 100 mA) -
see SLUU469 - Low Bus Capacitance 7 pF (Typ)
- 50-kV/µs Typical Transient Immunity
- Fail-safe Receiver for Bus Open, Short, Idle
- Logic Inputs are 5-V Tolerant
- Bus-Pin ESD Protection
- 11-kV HBM Between Bus-Pins and GND2
- 6-kV HBM Between Bus-Pins and GND1
- Safety and Regulatory Approvals
- 4242 VPK Basic Insulation per DIN V VDE V
0884-10 and DIN EN 61010-1 - 2500 VRMS Isolation for 1 minute per UL 1577
- CSA Component Acceptance Notice 5A, IEC
60950-1 and IEC 61010-1 Standards
- 4242 VPK Basic Insulation per DIN V VDE V
Description
The ISO3086T is an isolated differential line transceiver with integrated oscillator outputs that provide the primary voltage for an isolation transformer. The device is a full-duplex differential line transceiver for RS-485 and RS-422 applications that can easily be configured for half-duplex operation by connecting pin 11 to pin 14, and pin 12 to pin 13.
These devices are ideal for long transmission lines since the ground loop is broken to allow for a much larger common-mode voltage range. The symmetrical isolation barrier of the device is tested to provide 4242 VPK of isolation for 1 minute per VDE between the bus-line transceiver and the logic-level interface.
Any cabled I/O can be subjected to electrical noise transients from various sources. These noise transients can cause damage to the transceiver and/or near-by sensitive circuitry if they are of sufficient magnitude and duration. These isolated devices can significantly increase protection and reduce the risk of damage to expensive control circuits.
The ISO3086T is specified for use from –40°C to 85°C.
Technical documentation
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
This document describes the ISO1176T/35T/3086T Evaluation Module (EVM). It is used to evaluate the ISO1176T PROFIBUS Transceiver, the ISO35T RS-485 transceiver, or ISO3086T RS-485 Transceiver. Because the devices are similar transceivers, and the printed-circuit board is the same for all three EVMs (...)
Features
400V peak Isolation, 560V peak VIORM
- UL 1577, IEC 60747-5-2 (VDE 0884,Rev. 2),
- IEC 61010-1, IEC 60950-1 and CSA Apporoved
Meets or Exceeds the Requirments of EN 50170 and TIA/EIA RS-485
Signaling Rate up to 40 Mbps
Differential Output exceeds 2.1V (54 ohm Load)
Low Bus Capacitance-10pF (MAX)
50kV/us (...)
Description
This document describes the ISO1176T/35T/3086T Evaluation Module (EVM). It is used to evaluate the ISO1176T PROFIBUS Transceiver, the ISO35T RS-485 Transceiver or the ISO3086T RS-485 Transceiver. Because the devices are similar the same printed-circuit board is used for all three EVMs. One manual (...)
Features
- 4000-Vpeak Isolation
- Bus-pin ESD Protection
- -16 kV HBM Between Bus-Pins and GND2
- -6 kV HBM Between logic-Pins and GND1
- 1/8 Unit Load-Up to 256 Nodes on a Bus
- Designed for RS-485 and RS-422 Applications
- Signaling rates up to 20 Mbps
- Thermal Shutdown protection
- Low Bus Capacitance-7 pF (Typ)
- 50 kV/us Typical (...)
Description
The smaller EVM version shows the customer the space required for their design. This circuit provides an isolated, 20 Mbps, 3.3V to 5V RS-485 interface using the ISO3086T isolated RS-485 transceiver and the TPS76350 high accuracy linear regulator. This circuit achieves signal and power isolation and (...)
Features
- 11KV HBM between bus pins and GND2
- 6KV HBM between bus pins and GND1
Description
This document describes the ISO1176T/35T/3086T Evaluation Module (EVM). It is used to evaluate the ISO1176T PROFIBUS Transceiver, the ISO35T RS-485 transceiver, or ISO3086T RS-485 Transceiver. Because the devices are similar transceivers, and the printed-circuit board is the same for all three EVMs (...)
Features
4000 Vpeak Isolation
Bus-Pin ESD Protection
- 16 kV HBM Betweent Bus-Pins and GND2
- 6 kV HBM Between Bus-Pins and GND1
1/8 unit Load - Up to 256 Nodes on a Bus
Designed for RS-458 and RS-422 Applications
Signaling Rates up to 1 Mbps
Thermal Shutdown Protection
Low Bus Capacitance - 16 pF (Typ)
50 kV/us (...)
Design tools & simulation
Reference designs
Design files
-
download TIDA-01455 BOM Files.zip (140KB) -
download TIDA-01455 Assembly Files.zip (434KB) -
download TIDA-01455 Layer Plots.zip (2999KB) -
download TIDA-01455 CAD Files.zip (7473KB) -
download TIDA-01455 Gerber.zip (859KB)
Design files
-
download TIDA-00058 BOM.pdf (98KB) -
download TIDA-00058 Gerber.zip (323KB)
CAD/CAE symbols
| Package | Pins | Download |
|---|---|---|
| SOIC (DW) | 16 | View options |
Ordering & quality
- RoHS
- REACH
- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
Recommended products may have parameters, evaluation modules or reference designs related to this TI product.
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