Overview
The ISO1432BDWR, 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). It features a full-duplex operation with data rates up to 12 Mbps and is packaged in a wide-body SOIC-16 format.
Key Specifications
| Specification | Value |
|---|---|
| Package | SOIC (DW) - 16 pins |
| Operating Temperature Range | -40°C to 125°C |
| Data Transfer Rate | Up to 12 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 | 100 kV/µs (typical) |
| 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
- Low-EMI operation at 500kbps, 12Mbps, and 50Mbps data rates
- Safety-related certifications including 7071VPK VIOTM and 1500VPK VIORM per DIN VDE V 0884-11:2017-01
Applications
The ISO1432BDWR is suitable for a variety of industrial and commercial applications where robust isolation and high data transfer rates are required. These include:
- Industrial automation and control systems
- Building automation and HVAC systems
- Medical devices requiring high isolation
- Telecommunications and networking equipment
- Automotive systems needing reliable data communication
Q & A
- What is the maximum data transfer rate of the ISO1432BDWR?
The ISO1432BDWR supports data transfer rates up to 12 Mbps. - What is the operating temperature range of the ISO1432BDWR?
The operating temperature range is from -40°C to 125°C. - What kind of package does the ISO1432BDWR come in?
The ISO1432BDWR is packaged in a wide-body SOIC-16 format. - Does the ISO1432BDWR have built-in ESD protection?
Yes, it has built-in protection against ±30kV HBM, ±16kV IEC 61000-4-2 Contact discharge, and ±4kV IEC 61000-4-4 Electrical fast transient. - Is the ISO1432BDWR compatible with PROFIBUS?
Yes, it is compatible with PROFIBUS at a 5V bus-side supply. - What is the isolation voltage of the ISO1432BDWR?
The isolation voltage is 5 kVrms for 1 minute per UL 1577. - Does the ISO1432BDWR support hot plug-in?
Yes, it features glitch-free power-up and power-down for hot plug-in. - What certifications does the ISO1432BDWR have?
The device has certifications including IEC 60950-1, IEC 62368-1, IEC 60601-1, IEC 61010-1, CQC, TUV, and CSA approvals. - How many nodes can the ISO1432BDWR support on the bus?
The device can support up to 256 nodes on the bus with a 1/8 unit load. - Is the ISO1432BDWR pin compatible with other isolated RS-485 transceivers?
Yes, it is pin compatible with most isolated RS-485 transceivers.
