Model No: THVD1451DR
Texas Instruments THVD1451DR
Manufacturer: Texas Instruments
SEMICON NO.: THVD1451DR
Package: 8-SOIC
Stock: In stock
Description: IC Transceiver Full 1/1 RS485 8SOIC
SEMICON NO.: THVD1451DR
Package: 8-SOIC
Stock: In stock
Description: IC Transceiver Full 1/1 RS485 8SOIC
Quantity :
| Mfr | Texas Instruments |
| Type | RS-485/RS-422 Transceiver |
| Protocol Compliance | TIA/EIA-485A Standard |
| Supply Voltage (Vcc) | 3V to 5.5V |
| Data Rate | Up to 50 Mbps |
| ESD Protection | ±30kV HBM, ±18kV IEC 61000-4-2 (Contact), ±25kV (Air Gap), ±4kV (EFT) |
| Number of Drivers | 1 |
| Number of Receivers | 1 |
| Duplex Mode | Full Duplex |
| Receiver Hysteresis | 30mV |
| Common-Mode Voltage Range | ±15V |
| Low Power Consumption | Standby Current: <1µA, Operating Current: <3mA |
| Fail-Safe Protection | Open, Short, and Idle Bus Conditions |
| Unit Load | 1/8 (Supports up to 256 nodes on a bus) |
| Operating Temperature | -40°C to +125°C |
| Package/Sizes | 8-SOIC |
| Mounting Type | Surface Mount (SMD) |
| RoHS Compliance | Yes |
TI THVD14xx THVD1451DR, RS-485 Transceiver, 3.3V to 5V, 50 Mbps Transceiver ±18kV ESD Protection
The THVD1451DR is a high-performance, robust RS-485 transceiver device, part of Texas Instruments' THVD14xx family, specifically engineered to facilitate reliable communication in demanding industrial environments. It operates within a versatile voltage range of 3.3V to 5V, making it adaptable to various system requirements. This device is designed to meet or exceed the stringent requirements of the TIA/EIA-485A standard, ensuring compatibility and interoperability with existing RS-485 networks. Its primary function is to convert between the TTL/CMOS logic levels of a microcontroller or other digital systems and the differential voltage signals required for RS-485 communication, enabling long-distance, multi-drop data transmission with high noise immunity.
THVD1451DR Key Features and Performance
One of the standout features of the THVD1451DR is its exceptional ESD protection, offering ±18kV IEC 61000-4-2 contact discharge protection, which significantly enhances the device’s reliability in environments prone to electrostatic discharge. It supports data rates up to 50 Mbps, providing flexibility for both high-speed and low-speed communication applications. The transceiver boasts an extended common-mode voltage range of ±15V, making it suitable for applications involving long cable runs where signal levels can degrade or fluctuate. It features a large receiver hysteresis, which helps suppress noise and ensures stable operation even in electrically noisy conditions. Additionally, the device incorporates robust fault protection, safeguarding against bus faults such as short circuits and open circuits, and supports 1/8 unit load, allowing connection to networks with up to 256 nodes.
One of the standout features of the THVD1451DR is its exceptional ESD protection, offering ±18kV IEC 61000-4-2 contact discharge protection, which significantly enhances the device’s reliability in environments prone to electrostatic discharge. It supports data rates up to 50 Mbps, providing flexibility for both high-speed and low-speed communication applications. The transceiver boasts an extended common-mode voltage range of ±15V, making it suitable for applications involving long cable runs where signal levels can degrade or fluctuate. It features a large receiver hysteresis, which helps suppress noise and ensures stable operation even in electrically noisy conditions. Additionally, the device incorporates robust fault protection, safeguarding against bus faults such as short circuits and open circuits, and supports 1/8 unit load, allowing connection to networks with up to 256 nodes.
AlternativeTransceiver Models
The THVD1424 is another member of the family, featuring a similar robust RS-485 interface with ±18kV IEC ESD protection and support for data rates up to 50 Mbps, but it includes an added feature of slew-rate control, which can be beneficial for reducing EMI in certain applications.
The THVD1424DR is the VSON-packaged version of the THVD1424, offering the same features in a compact 3x3mm package, making it suitable for space-constrained designs requiring slew-rate control.
Additionally, while not a direct alternative, the SN65HVD230 from Texas Instruments is a widely used RS-485 transceiver that offers similar performance characteristics, including support for high data rates and extended temperature operation, and is available in SOIC and DFN packages, providing options for different board space requirements and ease of integration.
The THVD1424 is another member of the family, featuring a similar robust RS-485 interface with ±18kV IEC ESD protection and support for data rates up to 50 Mbps, but it includes an added feature of slew-rate control, which can be beneficial for reducing EMI in certain applications.
The THVD1424DR is the VSON-packaged version of the THVD1424, offering the same features in a compact 3x3mm package, making it suitable for space-constrained designs requiring slew-rate control.
Additionally, while not a direct alternative, the SN65HVD230 from Texas Instruments is a widely used RS-485 transceiver that offers similar performance characteristics, including support for high data rates and extended temperature operation, and is available in SOIC and DFN packages, providing options for different board space requirements and ease of integration.
