Overview
The THVD1420DRLR is a robust half-duplex RS-485 transceiver produced by Texas Instruments. It is designed for industrial applications and operates within a wide supply voltage range of 3 to 5.5 volts. This transceiver is notable for its high data transmission rate of up to 12 Mbps and its enhanced electrostatic discharge (ESD) protection, making it suitable for demanding environments. The device is available in a small, space-saving 8-pin SOT package, as well as in the standard SOIC-8 package, ensuring drop-in compatibility and ease of integration into various systems.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Minimum Supply Voltage | 3 | V |
| Nominal Supply Voltage | 5 | V |
| Maximum Supply Voltage | 5.5 | V |
| Maximum Supply Current | 3 | mA |
| No. of Terminals | 8 | |
| Package Style | SMALL OUTLINE, VERY THIN PROFILE (SOT) | |
| Terminal Form | FLAT | |
| Operating Temperature Range | -40°C to 125°C | |
| Data Transfer Rate | 12 Mbps | |
| ESD Protection | ±12-kV IEC 61000-4-2 Contact Discharge, ±15-kV IEC 61000-4-2 Air Gap Discharge, ±4-kV IEC 61000-4-4 Fast Transient Burst |
Key Features
- Meets or exceeds the requirements of the TIA/EIA-485A standard.
- Half-duplex RS-422/RS-485 operation.
- High data transmission rate of up to 12 Mbps.
- Enhanced ESD protection: ±12-kV IEC 61000-4-2 Contact Discharge, ±15-kV IEC 61000-4-2 Air Gap Discharge, and ±4-kV IEC 61000-4-4 Fast Transient Burst.
- Low power consumption: Low standby supply current (< 1 µA) and quiescent current during operation (1.5 mA typical).
- Glitch-free power-up/down for hot plug-in capability.
- Open, short, and idle bus failsafe.
- Large receiver hysteresis for noise rejection.
- Small, space-saving 8-pin SOT package option.
Applications
- Factory automation and control.
- Building automation.
- Grid infrastructure.
- Motor drives.
- Power delivery.
- Industrial transport.
- HVAC systems.
- Video surveillance.
- Smart meters.
Q & A
- What is the maximum data transfer rate of the THVD1420DRLR?
The THVD1420DRLR supports a maximum data transfer rate of 12 Mbps. - What is the operating supply voltage range of the THVD1420DRLR?
The operating supply voltage range is 3 to 5.5 volts. - What type of ESD protection does the THVD1420DRLR offer?
The device offers ±12-kV IEC 61000-4-2 Contact Discharge, ±15-kV IEC 61000-4-2 Air Gap Discharge, and ±4-kV IEC 61000-4-4 Fast Transient Burst ESD protection. - What are the package options available for the THVD1420DRLR?
The device is available in both the small 8-pin SOT package and the standard SOIC-8 package. - What is the operating temperature range of the THVD1420DRLR?
The operating temperature range is -40°C to 125°C. - Does the THVD1420DRLR support hot plug-in capability?
Yes, it supports glitch-free power-up/down for hot plug-in capability. - What is the typical quiescent current during operation?
The typical quiescent current during operation is 1.5 mA. - What kind of bus failsafe does the THVD1420DRLR provide?
The device provides open, short, and idle bus failsafe. - Is the THVD1420DRLR suitable for multi-point applications over long cable runs?
Yes, it is suitable due to its wide common-mode voltage range and low input leakage on bus pins. - What are some common applications of the THVD1420DRLR?
Common applications include factory automation, building automation, grid infrastructure, motor drives, and more.
