Overview
The SN65HVD75DRBT, produced by Texas Instruments, is a 3.3-V half-duplex RS-485 transceiver designed for demanding industrial applications. This device combines a differential driver and a differential receiver, operating from a single 3.3-V power supply. It features robust bus pins with high levels of ESD protection, making it suitable for multi-point applications over long cable runs. The device is characterized over an extended industrial temperature range of –40°C to 125°C, ensuring reliability in harsh environments.
Key Specifications
| Parameter | Value |
|---|---|
| Package | VSON (DRB) with 8 pins |
| Operating Temperature Range | –40°C to 125°C |
| Data Transfer Rate | Up to 20 Mbps |
| Supply Voltage | 3.3 V |
| ESD Protection | ±15 kV HBM, ±12 kV IEC 61000-4-2 Contact Discharge, ±4 kV IEC 61000-4-4 Fast Transient Burst |
| Receiver Hysteresis | 80 mV |
| Standby Supply Current | < 2 µA |
| Quiescent Current During Operation | < 1 mA |
| Logic Input Compatibility | 5-V tolerant, compatible with 3.3-V or 5-V controllers |
Key Features
- Small-size VSSOP packages save board space, or SOIC for drop-in compatibility.
- Bus I/O protection with high levels of ESD protection (±15 kV HBM, ±12 kV IEC 61000-4-2 Contact Discharge, ±4 kV IEC 61000-4-4 Fast Transient Burst).
- Extended industrial temperature range: –40°C to 125°C.
- Large receiver hysteresis (80 mV) for noise rejection.
- Low unit-loading allows over 200 connected nodes.
- Low power consumption with low standby supply current (< 2 µA) and quiescent current during operation (< 1 mA).
- 5-V tolerant logic inputs compatible with 3.3-V or 5-V controllers.
- Signaling rate options optimized for 250 kbps, 20 Mbps, and 50 Mbps.
- Glitch-free power-up and power-down bus inputs and outputs.
Applications
The SN65HVD75DRBT is suitable for a variety of industrial and commercial applications, including:
- Industrial automation and control systems.
- Building automation and control systems.
- Remote sensors and data acquisition systems.
- Point-of-sale terminals and other commercial equipment.
- Multi-point applications over long cable runs due to its wide common-mode voltage range.
Q & A
- What is the operating temperature range of the SN65HVD75DRBT?
The operating temperature range is –40°C to 125°C.
- What is the maximum data transfer rate of the SN65HVD75DRBT?
The maximum data transfer rate is up to 20 Mbps.
- What type of ESD protection does the SN65HVD75DRBT offer?
The device offers ±15 kV HBM, ±12 kV IEC 61000-4-2 Contact Discharge, and ±4 kV IEC 61000-4-4 Fast Transient Burst ESD protection.
- Is the SN65HVD75DRBT compatible with 5-V logic inputs?
- What is the standby supply current of the SN65HVD75DRBT?
- How many nodes can be connected using the SN65HVD75DRBT?
- What signaling rates are supported by the SN65HVD75DRBT?
- Does the SN65HVD75DRBT have glitch-free power-up and power-down capabilities?
- What is the package type of the SN65HVD75DRBT?
- What is the common-mode voltage range of the SN65HVD75DRBT?
