THVD1439
- Meets or exceeds the requirements of the TIA/EIA-485A standard
- 3-V to 5.5-V Supply Voltage
- VIO Support from 1.65-V to VCC supply level (THVD1439V, THVD1449V)
- Bus I/O protection
- ± 4-kV IEC 61000-4-5 1.2/50-µs surge
- ± 15-kV IEC 61000-4-2 Contact discharge
- ± 15-kV IEC 61000-4-2 Air-gap discharge
- ± 4-kV IEC 61000-4-4 Electrical fast transient
- ± 15-kV HBM ESD
- ± 15-V DC bus fault
- Available in two speed grades
- THVD1439, THVD1439V: 250 kbps
- THVD1449, THVD1449V: 12 Mbps
- Extended ambient temperature range: -40°C to 125°C
- Extended operational common-mode range: ± 12 V
- Large receiver hysteresis for noise rejection
- Low Power Consumption
- Standby supply current: < 3 µA
- Current during operation: < 5 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)
- Industry standard 8-pin SOIC for drop-in compatibility
THVD14x9(V) devices are half-duplex RS-485 transceivers 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 increases the reliability by providing better immunity to noise transients coupled to the data cable which eliminates the need for external protection components.
THVD1439 and THVD1449 operate from a single 3.3-V or 5-V supply. The THVD1439V and THVD1449V devices support an additional VIO supply to operate the IOs from as low as 1.65 V supply level. The devices in this family feature a wide common-mode voltage range making them suitable for multi-point applications over long cable runs.
技術文件
類型 | 標題 | 日期 | ||
---|---|---|---|---|
* | Data sheet | THVD14x9x 3-V to 5.5-V RS-485 Transceivers With 4-kV Surge Protection and 1.8-V VIO Capability datasheet (Rev. B) | PDF | HTML | 2021年 9月 28日 |
Application note | Simplifying Surge Protection for RS-485 Using Integrated Designs | PDF | HTML | 2024年 5月 20日 |
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)。
RS485-HF-DPLX-EVM — RS-485 半雙工評估模組
PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具
TINA-TI — 基於 SPICE 的類比模擬程式
封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
---|---|---|
SOIC (D) | 8 | Ultra Librarian |
訂購與品質
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 認證摘要
- 進行中持續性的可靠性監測
- 晶圓廠位置
- 組裝地點
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。