Overview
The THVD1452DR 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 electrical fast transients (EFT) and electrostatic discharge (ESD) events. The THVD1452DR 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 small VSON and VSSOP packages, making it ideal for space-constrained applications. It is characterized over an ambient free-air temperature range from –40°C to 125°C.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage (VCC) | -0.5 | 7 | V | |
| Bus Voltage Range | -18 | 18 | V | |
| Operating Ambient Temperature (TA) | -40 | 125 | °C | |
| Junction Temperature (TJ) | -40 | 150 | °C | |
| Signaling Rate (THVD1452) | 50 | Mbps | ||
| Driver Differential Output Voltage (|VOD|) | 1.5 | 3.5 | V | |
| Standby Supply Current | < 1 | µA | ||
| Current During Operation | < 3 | mA | ||
| ESD Protection | ±18 kV IEC 61000-4-2 Contact Discharge | |||
| ESD Protection | ±25 kV IEC 61000-4-2 Air-Gap Discharge | |||
| ESD Protection | ±4 kV IEC 61000-4-4 Fast Transient Burst |
Key Features
- Compatibility with 3 V to 5.5 V supply voltage.
- Differential output exceeds 2.1 V for PROFIBUS compatibility.
- Extended operational common-mode range: ±15 V.
- Low EMI with data rates up to 50 Mbps.
- Large receiver hysteresis for noise rejection.
- Low power consumption with standby supply current < 1 µA and current during operation < 3 mA.
- Glitch-free power-up/down for hot plug-in capability.
- Open, short, and idle bus failsafe.
- 1/8 unit load (up to 256 bus nodes).
- Small-size VSON and VSSOP packages for space-constrained applications.
- Robust ESD protection: ±18 kV IEC 61000-4-2 contact discharge, ±25 kV IEC 61000-4-2 air-gap discharge, and ±4 kV IEC 61000-4-4 fast transient burst.
Applications
- Motor Drives
- 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 THVD1452DR?
The THVD1452DR operates from a single supply voltage between 3 V and 5.5 V.
- What are the data rates supported by the THVD1452DR?
The THVD1452DR supports data rates up to 50 Mbps.
- What is the ESD protection level of the THVD1452DR?
The device offers ±18 kV IEC 61000-4-2 contact discharge, ±25 kV IEC 61000-4-2 air-gap discharge, and ±4 kV IEC 61000-4-4 fast transient burst ESD protection.
- What is the operating temperature range of the THVD1452DR?
The device operates over an ambient free-air temperature range from –40°C to 125°C.
- What are the package options available for the THVD1452DR?
The device is available in VSON and VSSOP packages.
- Does the THVD1452DR support hot plug-in capability?
Yes, the device features glitch-free power-up/down for hot plug-in capability.
- What is the standby supply current of the THVD1452DR?
The standby supply current is less than 1 µA.
- What is the current consumption during operation?
The current consumption during operation is less than 3 mA.
- Is the THVD1452DR compatible with PROFIBUS?
Yes, the device's differential output exceeds 2.1 V for PROFIBUS compatibility.
- What is the common-mode voltage range of the THVD1452DR?
The device has an extended operational common-mode range of ±15 V.
