Overview
The THVD1450DRBT is a 3.3-V to 5-V RS-485 transceiver manufactured by Texas Instruments. This device is part of the THVD14xx family, designed to operate in rugged industrial environments. It is compliant with the TIA/EIA-485A standard and features robust bus pins that are immune to high levels of IEC electrical fast transients (EFT) and electrostatic discharge (ESD) events, eliminating the need for additional system-level protection components. The device operates from a single supply voltage between 3 V and 5.5 V and is available in a small VSON-8 package, making it suitable for space-constrained applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage | 3 V to 5.5 V | V |
| Differential Output Voltage | ≥ 2.1 V (for PROFIBUS compatibility) | V |
| ESD Protection | ±18 kV IEC | V |
| Operating Temperature | –40°C to 125°C | °C |
| Package Type | VSON-8 | — |
| Package Size | 3.00 mm × 3.00 mm | mm |
| Propagation Delay | 250 ns to 500 ns | ns |
| Pulse Skew | 10 ns | ns |
| Output Rise/Fall Time | 10 ns to 20 ns | ns |
Key Features
- Compliance with TIA/EIA-485A standard
- Robust bus pins with ±18 kV IEC ESD protection and high immunity to EFT
- Extended common-mode voltage range, suitable for multi-point applications over long cable runs
- Single supply voltage operation between 3 V and 5.5 V
- Small VSON-8 package for space-constrained applications
- Operating temperature range from –40°C to 125°C
Applications
- Rugged industrial environments
- Multi-point applications over long cable runs
- PROFIBUS and other industrial communication systems
- Automotive and aerospace systems requiring high reliability and ESD protection
- Industrial automation and control systems
Q & A
- What is the supply voltage range for the THVD1450DRBT?
The supply voltage range for the THVD1450DRBT is 3 V to 5.5 V.
- What level of ESD protection does the THVD1450DRBT offer?
The THVD1450DRBT offers ±18 kV IEC ESD protection.
- What is the operating temperature range for the THVD1450DRBT?
The operating temperature range for the THVD1450DRBT is from –40°C to 125°C.
- What package types are available for the THVD1450DRBT?
The THVD1450DRBT is available in a VSON-8 package.
- Is the THVD1450DRBT compatible with PROFIBUS?
Yes, the THVD1450DRBT is compatible with PROFIBUS, with a differential output voltage exceeding 2.1 V.
- What are the typical propagation delay and pulse skew values for the THVD1450DRBT?
The typical propagation delay is between 250 ns and 500 ns, and the pulse skew is 10 ns.
- What is the output rise/fall time for the THVD1450DRBT?
The output rise/fall time for the THVD1450DRBT is between 10 ns and 20 ns.
- Is the THVD1450DRBT suitable for multi-point applications?
Yes, the THVD1450DRBT is suitable for multi-point applications over long cable runs due to its extended common-mode voltage range.
- What are some common applications for the THVD1450DRBT?
Common applications include rugged industrial environments, PROFIBUS and other industrial communication systems, automotive and aerospace systems, and industrial automation and control systems.
- Is the THVD1450DRBT RoHS compliant?
Yes, the THVD1450DRBT is RoHS compliant and lead-free.
