THVD1550
- Meets or Exceeds the Requirements of the TIA/EIA-485A Standard
- 4.5 V to 5.5 V Supply Voltage
- Integrated Bus I/O Protection
- ± 30 kV HBM ESD
- ± 18 kV IEC 61000-4-2 ESD Contact Discharge
- ± 25 kV IEC 61000-4-2 ESD Air-Gap Discharge
- ± 4 kV IEC 61000-4-4 Electrical Fast Transient
- Extended Operational Common-mode: ± 15 V
- Low EMI 500 kbps and 50 Mbps Data Rates
- Extended Temperature Range: -40°C to 125°C
- Large Receiver Hysteresis for Noise Rejection
- Low Power Consumption
- Low Standby Supply Current: < 1 µA
- Current During Operation: < 1 mA
- Glitch-Free Power-Up/Down for Hot Plug-in Capability
- Open, Short, and Idle Bus Failsafe
- 1/8 Unit Load Options (Up to 256 Bus Nodes)
- Small-Size VSSOP Packages Save Board Space or SOIC for Drop-in Compatibility
THVD15xx is a family of noise-immune RS-485/RS-422 transceivers designed to operate in rugged industrial environments. The bus pins of these devices are robust to high levels of IEC electrical fast transients (EFT) and IEC electrostatic discharge (ESD) events, eliminating the need for additional system-level protection components.
Each of these devices operates from a single 5-V supply. The devices in this family feature an extended common-mode voltage range which makes them suitable for multi-point applications over long cable runs.
THVD15xx family of devices is available in small VSSOP packages for space-constrained applications. These devices are characterized over ambient free-air 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 | THVD15xx 5-V RS-485 Transceivers With ±18-kV IEC ESD Protection datasheet (Rev. C) | PDF | HTML | 2018/12/3 | ||
| 白皮書 | RS-485 Basics Series | 2021/2/24 | ||||
| 電子書 | E-book: An engineer’s guide to industrial robot designs | 2020/2/12 | ||||
| 技術文章 | Frequently asked questions and answers for RS-485 transceivers | PDF | HTML | 2019/4/9 | |||
| 技術文章 | What is an EFT? Part 2 | PDF | HTML | 2018/7/17 | |||
| 技術文章 | How to calculate the power dissipation of high-speed RS-485 transceivers | PDF | HTML | 2018/6/14 | |||
| 技術文章 | What is an EFT? | PDF | HTML | 2017/10/30 | |||
| 應用說明 | Signal Integrity vs. Transmission Rate and Cable Length for RS-485 Transceivers | 2017/8/29 |
設計與開發
如需其他條款或必要資源,請按一下下方的任何標題以檢視詳細頁面 (如有)。
TIDA-00730 — RS-485 IEC ESD 參考設計
TIDA-00730 是一款參考設計,用於研究如何保護 RS-485 匯流排免受致命的暫態波形(例如 IEC ESD、IEC EFT 和 IEC 突波)的損害。此參考設計展示了透過在標準 RS-485 收發器的匯流排線路上實作 TVS 二極體以及具有整合 IEC 保護的 RS-485 收發器可以達到的保護等級。
TIDA-00731 — IEC ESD、EFT 及突波防護 RS-485 參考設計
TIDA-00731 是一款參考設計,用於研究如何保護 RS-485 匯流排免受致命的暫態波形(例如 IEC ESD、IEC EFT 和 IEC 突波)的損害。此參考設計展示了透過在標準 RS-485 收發器的匯流排線路上實作一個外部保護方案以及具有整合 IEC 保護的 RS-485 收發器可以達到的保護等級。
TIDA-01401 — 適用於絕對編碼器的高 EMC 耐受性 RS-485 介面參考設計
TIDA-01629 — 48V/500W 三相逆變器,具有用於伺服驅動器的智慧閘極驅動器參考設計
TIDA-01630 — 適用於 Tamagawa 編碼器的高 EMC 抗擾性 RS485 介面參考設計
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| SOIC (D) | 8 | Ultra Librarian |
| VSSOP (DGK) | 8 | 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。