Overview
The ISO1412DWR, produced by Texas Instruments, is a galvanically-isolated differential line transceiver designed for TIA/EIA RS-485 and RS-422 applications. This device is engineered to operate in harsh industrial environments, offering robust protection against various forms of electromagnetic interference (EMI) and electrostatic discharge (ESD). The ISO1412DWR features a wide range of safety certifications and is suitable for systems requiring high reliability and isolation.
Key Specifications
| Parameter | Value |
|---|---|
| Package | SOIC (DW), 16 pins |
| Operating Temperature Range | -40°C to 125°C |
| Data Rate | 500 kbps, 12 Mbps, 50 Mbps |
| Logic-Side Supply (VCC1) | 1.71V to 5.5V |
| Bus-Side Supply (VCC2) | 3V to 5.5V |
| Isolation Voltage | 5 kVrms for 1 minute per UL 1577 |
| ESD Protection | ±30kV HBM, ±16kV IEC 61000-4-2 Contact discharge, ±4kV IEC 61000-4-4 Electrical fast transient |
| Common-Mode Transient Immunity | 100kV/µs (typical) |
| Safety Certifications | IEC 60950-1, IEC 62368-1, IEC 60601-1, IEC 61010-1, CQC, TUV, and CSA approvals |
Key Features
- Compatible with TIA/EIA-485-A and PROFIBUS at 5V bus-side supply
- Bus I/O protection against ESD and EFT events
- Failsafe receiver for bus open, short, and idle conditions
- 1/8 Unit load up to 256 nodes on bus
- Glitch-free power-up and power-down for hot plug-in
- Pin compatible to most isolated RS-485 transceivers
- Extended temperature range from –40°C to 125°C
- Low-EMI operation
Applications
The ISO1412DWR is ideal for use in various industrial and commercial applications where reliable, isolated communication is crucial. These include industrial automation, process control systems, medical devices, and any environment where high levels of EMI and ESD protection are necessary.
Q & A
- What is the primary function of the ISO1412DWR? The ISO1412DWR is a galvanically-isolated differential line transceiver for TIA/EIA RS-485 and RS-422 applications.
- What are the operating temperature ranges for the ISO1412DWR? The operating temperature range is from -40°C to 125°C.
- What are the supported data rates for the ISO1412DWR? The device supports data rates of 500 kbps, 12 Mbps, and 50 Mbps.
- What is the isolation voltage of the ISO1412DWR? The isolation voltage is 5 kVrms for 1 minute per UL 1577.
- Does the ISO1412DWR have ESD protection? Yes, it offers ±30kV HBM, ±16kV IEC 61000-4-2 Contact discharge, and ±4kV IEC 61000-4-4 Electrical fast transient protection.
- Is the ISO1412DWR compatible with other RS-485 transceivers? Yes, it is pin compatible to most isolated RS-485 transceivers.
- What safety certifications does the ISO1412DWR have? It has certifications such as IEC 60950-1, IEC 62368-1, IEC 60601-1, IEC 61010-1, CQC, TUV, and CSA approvals.
- Can the ISO1412DWR be used in harsh industrial environments? Yes, it is designed to operate in harsh industrial environments with robust EMI and ESD protection.
- Does the ISO1412DWR support failsafe operation? Yes, it includes a failsafe receiver for bus open, short, and idle conditions.
- What is the common-mode transient immunity of the ISO1412DWR? The common-mode transient immunity is 100kV/µs (typical).
