THVD1428 is a half-duplex RS-485 transceiver with integrated surge protection. Surge protection is achieved by integrating transient voltage suppressor (TVS) diodes in the standard 8-pin SOIC (D) package. This feature provides a substantial increase in reliability for better immunity to noise transients coupled to the data cable, eliminating the need for external protection components.
This device operates from a single 3.3-V or 5-V supply and features a wide common-mode voltage range which makes it suitable for multi-point applications over long cable runs.
The device is available in the industry standard SOIC package for easy drop-in without any PCB changes. The device is characterized over ambient free-air temperatures from –40°C to 125°C.
| Number of receivers | 1 |
| Number of transmitters | 1 |
| Duplex | Half |
| Supply voltage (nom) (V) | 3.3, 5 |
| Signaling rate (max) (MBits) | 20 |
| IEC 61000-4-2 contact (±V) | 4000 |
| Fault protection (V) | -15 to 15 |
| Common-mode range (V) | -12 to 12 |
| Number of nodes | 256 |
| Features | Extended common mode, IEC ESD protection, Surge protection |
| Isolated | No |
| Supply current (max) (µA) | 3000 |
| Rating | Catalog |
| Operating temperature range (°C) | -40 to 125 |
| SOIC (D) | 8 | 29.4 mm² 4.9 x 6 |
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