THVD4411
- Meets or exceeds the requirements of the TIA/EIA-485A and TIA/EIA-232F standards
- 1 transmitter, 1 receiver for RS-232
- 1 transmitter, 1 receiver for RS-485
- On-chip switchable 120Ω termination resistor for RS-485 mode
- Integrated charge-pump for RS-232 signaling
- 3V to 5.5V supply voltage
- 1.65V to 5.5V supply for logic data and control signals
- RS-485 differential output exceeds 2.1V for PROFIBUS compatibility with 5V supply
- Large output swing (typical ± 9V) for RS-232 mode
- SLR Pin Selectable Data Rates:
- RS-232 3T5R mode: 250kbps and 1Mbps
- RS-485 half-duplex and full-duplex mode: 500kbps and 20Mbps
- Bus I/O protection
- ±16kV HBM ESD
- ±8kV IEC 61000-4-2 contact and ±15kV air-gap discharge
- ±4kV IEC 61000-4-4 fast transient burst
- Shutdown pin for extremely low current consumption (10µA typical) in disabled state
- Glitch-free power-up/down for hot plug-in capability
- 1/8 unit load (up to 256 bus nodes) for RS-485
- Open, short, and idle bus failsafe for RS-485 receiver
- Bus short-circuit protection, Thermal shutdown
- Extended ambient temperature range: -40°C to 125°C
- Space-saving thermally efficient 4mm x 4mm VQFN-24 package
THVD4411 is a highly integrated and robust multiprotocol transceiver supporting RS-232, RS-422 and RS-485 physical layers. The device has one transmitter and one receiver to enable 1T1R RS-232 port. Device also integrates one transmitter and one receiver to enable half and full duplex RS-485 port. MODE selection pins enable shared bus and logic pins for the protocols to share a common single connector. Integrated termination for RS-485 bus pins and for RS-232 receiver inputs are provided so no external components are needed to realize a fully-functional communication port. These devices have slew rate select feature that enables them to be used at two maximum speeds based on the SLR pin setting.
These devices feature integrated Level 4 IEC ESD protection, eliminating the need for external system-level protection components. In addition, the RS-485 receiver fail-safe feature drives logic high on received logic output when the bus inputs are open or shorted together or when the bus is idle. Shutdown mode consumes ultra-low current (10µA typical) in power-sensitive applications. The device needs 3V to 5.5V supply that powers the charge pump for RS-232 and the drivers and receivers for both RS-232 and RS-485. A separate logic supply VIO (1.65V to 5.5V) enables interface with low level microcontrollers.
技術文件
類型 | 標題 | 日期 | ||
---|---|---|---|---|
* | Data sheet | THVD4411 Multiprotocol (RS-232, RS-422, RS485) Transceiver with Integrated 120Ω Switchable Termination Resistor and IEC-ESD Protection datasheet (Rev. A) | PDF | HTML | 2024年 4月 17日 |
White paper | THVD44xx: Multiprotocol Transceivers With Advanced Integration and Flexibility Enable Diverse Applications | PDF | HTML | 2024年 5月 2日 | |
EVM User's guide | THVD4411 Evaluation Module User's Guide | PDF | HTML | 2024年 3月 5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)。
THVD4411EVM — THVD4411 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 |
---|---|---|
VQFN (RGE) | 24 | 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。