XISOW1412DFMR Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
Texas Instruments XISOW1412DFMR is a 5-kVRMS reinforced isolated RS-485/RS-422 transceiver integrating a low-noise, high-efficiency DC-DC converter in a 20-pin SOIC package. It combines galvanic isolation with power delivery, eliminating a separate isolated supply. Available from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 20
- Lifecycle
- OBSOLETE
- Datasheet
- XISOW1412DFMR Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 5-kVRMS reinforced galvanic isolation meeting IEC 60747-17 safety standards for industrial interfaces
- Integrated low-emissions, high-efficiency DC-DC converter eliminating the need for a separate isolated power supply
- Supports both EIA-485 and EIA-422 differential standards at up to 50 Mbps data rate
- Low-noise design with spread-spectrum modulation reducing EMI in sensitive industrial environments
- 20-pin SOIC package simplifying board layout compared to discrete isolation plus transceiver solutions
Applications
The XISOW1412DFMR is designed for industrial RS-485 and RS-422 communication links requiring galvanic isolation between field-side sensors and control-side processors. Its integrated DC-DC converter makes it ideal for PLC I/O modules, motor drive feedback channels, and building automation networks where a compact, fully isolated solution reduces system complexity. The 5-kVRMS isolation rating also suits medical device interfaces and grid-tied power electronics needing strict safety margins.
Specifications
| Date Of Intro | 2020-09-06 |
| YTEOL | 0 |
| Differential Output | YES |
| Driver Number of Bits | 1 |
| High Level Input Current-Max | 0.000025A |
| Input Characteristics | STANDARD |
| Interface IC Type | LINE TRANSCEIVER |
| Interface Standard | EIA-422; EIA-485 |
| JESD-30 Code | R-PDSO-G20 |
| Number of Functions | 1 |
| Out Swing-Min | 1.5V |
| Output Characteristics | 3-STATE |
| Output Low Current-Max | 0.004A |
| Output Polarity | TRUE |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP20,.4 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG |
| Receive Delay-Max | 135ns |
| Receiver Number of Bits | 1 |
| Supply Current-Max | 0.55mA |
| Supply Voltage-Max | 1.89V |
| Supply Voltage-Min | 1.71V |
| Supply Voltage-Nom | 1.8V |
| Supply Voltage1-Max | 1.89V |
| Supply Voltage1-Min | 1.71V |
| Supply Voltage1-Nom | 1.8V |
| Surface Mount | YES |
| Technology | BICMOS |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Transmit Delay-Max | 610ns |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for XISOW1412DFMR:
Frequently Asked Questions
What isolation voltage does the XISOW1412DFMR provide, and which safety standard does it meet?
The XISOW1412DFMR provides 5-kVRMS reinforced isolation, meeting IEC 60747-17 requirements. This level of isolation protects both the host controller and human operators from high-voltage transients common in industrial RS-485 networks, motor drives, and grid-connected equipment operating at elevated bus voltages.
How does the integrated DC-DC converter in the XISOW1412DFMR simplify system design compared to discrete solutions?
The XISOW1412DFMR integrates a low-emissions, high-efficiency DC-DC converter that powers the isolated RS-485/RS-422 transceiver side directly from the host supply, eliminating the need for a separate isolated transformer or charge-pump circuit. This reduces BOM count by up to 10 passive components and saves significant PCB area in constrained industrial module designs.
Which communication standards does the XISOW1412DFMR support, and how fast can it transmit data?
The XISOW1412DFMR supports both EIA-485 (RS-485) and EIA-422 (RS-422) differential bus standards. It handles data rates suitable for industrial protocols like Modbus, Profibus, and DMX512, with the driver providing 1-bit differential output. Its low input current of 25 µA (max) on the high-level input keeps host controller loading minimal.
In which industrial applications is the XISOW1412DFMR most commonly deployed?
The XISOW1412DFMR is commonly used in PLC analog and digital I/O expansion modules, servo motor encoder feedback links, building management system (BMS) RS-485 buses, and substation automation equipment. The 5-kVRMS isolation class is especially valued in grid-tied inverters and medical test equipment requiring reinforced safety separation.
What package does the XISOW1412DFMR use, and how does this affect board layout?
The XISOW1412DFMR comes in a 20-pin SOIC (Small Outline Integrated Circuit) package with a 1.27 mm pin pitch. The SOIC footprint is easy to hand-solder during prototyping and is compatible with standard SMT pick-and-place assembly, while providing enough creepage and clearance distance on the package body to maintain the 5-kVRMS reinforced isolation rating.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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