THVD1424
- Meets or exceeds the requirements of the TIA/EIA-485A standard
- 3-V to 5.5-V bus supply voltage
- 1.65 V to 5.5 V supply for logic signals
- Differential output exceeds 2.1 V for PROFIBUS compatibility with 5-V supply
- Pin configurable Half-duplex and full-duplex
- Pin controlled on-chip 120 Ω termination resistor on bus pins
- Maximum Data rate configurable
- SLR = High: 500 kbps
- SLR = Low or floating: 20 Mbps
- Bus I/O protection
- ±16-kV HBM ESD
- ±8-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
- ±16-V bus fault protection (absolute max voltage on bus pins)
- Extended industrial temperature range: -40°C to 125°C
- Low power consumption
- Shutdown supply current < 5 µA
- Quiescent current during operation < 3 mA
- Glitch-free power-up/power-down for hot plug-in capability
- Open, short, and idle bus failsafe
- Small, space-saving 16-VQFN (3 mm x 3 mm) package
The THVD1424 is a flexible RS-485 transceiver for industrial applications. The device has features such as on-chip 120-Ω termination resistor, slew rate control and interchangeability between half and full duplex mode. All the features are pin-controlled. This enables the device to be used at any node location (end nodes or middle nodes) in any network, two-wire (half duplex) or 4-wire (full duplex), slow or fast. End-equipment designers can now design a common printed circuit board (PCB) and configure it via software for various application needs. This can save considerable design and qualification time for the customers.
The bus pins are immune to high levels of IEC Contact Discharge ESD events, eliminating the need for additional system level protection components. The device operates from 3 to 5.5-V bus supply, while the logic supply voltage range is 1.65 V to 5.5 V. The wide common-mode voltage range and low input leakage on bus pins makes the devices suitable for multi-point applications over long cable runs.
The device is available in a space-saving, thermally efficient 16-pin VQFN package. The device is characterized for ambient temperatures from –40°C to 125°C.
技術文件
| 重要文件 | 類型 | 標題 | 格式選項 | 下載最新的英文版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 資料表 | THVD1424 3-V to 5.5-V RS-485 Transceiver With Slew Rate Control, Integrated120-Ohm Switchable Termination Resistor and Duplex Switching datasheet (Rev. A) | PDF | HTML | 2023/3/28 | ||
| 應用說明 | Flexible RS-485: A Simplified Multi-System Design for RS-485 Using the THVD1424 | PDF | HTML | 2023/9/13 | |||
| 白皮書 | 利用靈活的 RS-485 收發器減少系統設計時間與成本 (Rev. C) | PDF | HTML | Download English Version (Rev.C) | PDF | HTML | 2023/6/27 | |
| 證書 | THVD1424EVM EU RoHS Declaration of Conformity (DoC) | 2022/9/20 | ||||
| 技術文章 | Frequently asked questions and answers for RS-485 transceivers | PDF | HTML | 2019/4/9 |
設計與開發
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THVD1424EVM — THVD1424 評估模組適用於 RS-485 整合式可切換終端與雙工切換
THVD1424EVM 提供快速評估我們的 THVD1424 的方式，採用 16-VQFN (RJT) 封裝的全雙工 RS-485 收發器，可選擇資料傳輸速率及可切換的整合式終端電阻器。
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| VQFN (RGT) | 16 | Ultra Librarian |
訂購與品質
建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。