Overview
The THVD1450DGK is a part of the THVD14xx family of RS-485/RS-422 transceivers designed by Texas Instruments. These devices are engineered to operate in rugged industrial environments, offering robust protection against high levels of IEC electrical fast transients (EFT) and electrostatic discharge (ESD) events. The THVD1450DGK operates from a single supply voltage between 3 V and 5.5 V, making it versatile for various applications. It features an extended common-mode voltage range, which is suitable for multi-point applications over long cable runs. The device is available in a VSSOP (8) package, ideal for space-constrained applications, and is characterized over ambient free-air temperatures from –40°C to 125°C.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage | 3 V to 5.5 V | V |
| Differential Output Voltage Magnitude | 1.5 to 3.5 V | V |
| Signaling Rate | 50 Mbps | - |
| Operating Ambient Temperature | -40°C to 125°C | °C |
| Junction Temperature | -40°C to 150°C | °C |
| Driver Rise/Fall Time | 1 to 6 ns | ns |
| Propagation Delay | 3 to 10 ns | ns |
| Package Type | VSSOP (8) | - |
| Body Size | 3.00 mm × 3.00 mm | mm |
Key Features
- Robust protection against IEC ESD events up to ±18 kV and EFT events up to ±4 kV.
- Extended common-mode voltage range for multi-point applications over long cable runs.
- Internal biasing of the receiver input thresholds with large input-threshold hysteresis, eliminating the need for external failsafe biasing resistors.
- Low power consumption with a standby current of less than 1 µA when both driver and receiver are disabled.
- High differential output voltage (VOD) for better noise immunity, meeting PROFIBUS application requirements.
- Available in small VSSOP and VSON packages for space-constrained applications.
Applications
- Factory Automation & Control
- Grid Infrastructure
- Building Automation
- HVAC Systems
- Video Surveillance
- Process Analytics
- Wireless Infrastructure
Q & A
- What is the operating supply voltage range of the THVD1450DGK?
The THVD1450DGK operates from a single supply voltage between 3 V and 5.5 V.
- What is the maximum signaling rate of the THVD1450DGK?
The maximum signaling rate of the THVD1450DGK is 50 Mbps.
- What is the operating ambient temperature range of the THVD1450DGK?
The device operates over ambient free-air temperatures from –40°C to 125°C.
- What type of protection does the THVD1450DGK offer against ESD and EFT events?
The THVD1450DGK offers robust protection against IEC ESD events up to ±18 kV and EFT events up to ±4 kV.
- What is the typical differential output voltage magnitude of the THVD1450DGK?
The typical differential output voltage magnitude is between 1.5 V and 3.5 V.
- What package types are available for the THVD1450DGK?
The THVD1450DGK is available in VSSOP (8) and VSON (8) packages.
- How does the THVD1450DGK handle receiver input thresholds?
The device features internal biasing of the receiver input thresholds with large input-threshold hysteresis, eliminating the need for external failsafe biasing resistors.
- What is the standby current of the THVD1450DGK when both driver and receiver are disabled?
The standby current is less than 1 µA when both driver and receiver are disabled.
- What are some common applications of the THVD1450DGK?
Common applications include Factory Automation & Control, Grid Infrastructure, Building Automation, HVAC Systems, Video Surveillance, Process Analytics, and Wireless Infrastructure.
- What is the body size of the VSSOP package for the THVD1450DGK?
The body size of the VSSOP package is 3.00 mm × 3.00 mm.
