ISO7421E
- Signaling Rate > 50 Mbps
- Default Output 'High' and 'Low' Options
- Low Power Consumption: Typical ICC per Channel (3.3-V Supplies):
- ISO7420: 1.4 mA at 1 Mbps, 2.5 mA at 25 Mbps
- ISO7421: 1.8 mA at 1 Mbps, 2.8 mA at 25 Mbps
- Low Propagation Delay: 7 ns Typical
- Low Pulse Skew: 200 ps Typical
- Wide TA Range Specified: –40°C to 125°C
- 50-KV/μs Transient Immunity, Typical
- Isolation Barrier Life: > 25 Years
- Operates from 3-V to 5.5-V Supply Levels
- 3.3-V and 5-V Level Translation
- Narrow Body SOIC-8 Package
- Safety and Regulatory Approvals:
- 4242 VPK Isolation per DIN V VDE V 0884-10 and DIN EN 61010-1
- 2500 VRMS Isolation for 1 minute per UL 1577
- CSA Component Acceptance Notice 5A, IEC 60950-1 and IEC 61010-1 Standards
- CQC Certification per GB4943.1-2011
All trademarks are the property of their respective owners.
ISO742x provide galvanic isolation up to 2500 VRMS for 1 minute per UL and 4242 VPK per VDE. These devices have two isolated channels. Each channel has a logic input and output buffer separated by a silicon dioxide (SiO2) insulation barrier. Used in conjunction with isolated power supplies, these devices prevent noise currents on a data bus or other circuit from entering the local ground and interfering with or damaging sensitive circuitry. ISO7420 has both channels in the same direction while ISO7421 has the two channels in opposite direction. In case of input power or signal loss, default output is 'low' for devices with suffix 'F' and 'high' for devices without suffix 'F'. ISO742x have no integrated noise filter and thus have fast propagation delays.
These devices have TTL input thresholds and operate from 3-V to 5.5-V supplies. All inputs are 5-V tolerant when supplied from a 3.3-V supply.
技術文件
| 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | ISO742x Low-Power Dual Channel Digital Isolators datasheet (Rev. F) | PDF | HTML | 2015年 3月 24日 |
| Certificate | VDE Certificate for Basic Isolation for DIN EN IEC 60747-17 (Rev. W) | 2024年 1月 31日 | ||
| White paper | Improve Your System Performance by Replacing Optocouplers with Digital Isolators (Rev. C) | PDF | HTML | 2023年 9月 7日 | |
| Certificate | CSA Certificate for ISO742xD | 2023年 3月 15日 | ||
| Certificate | CQC Certificate for ISO154xD, ISO742xD, ISO71xxDBQ (Rev. A) | 2023年 2月 7日 | ||
| Certificate | UL Certificate of Compliance File E181974 Vol 4 Sec 3 | 2022年 8月 8日 | ||
| White paper | Why are Digital Isolators Certified to Meet Electrical Equipment Standards? | 2021年 11月 16日 | ||
| White paper | Distance Through Insulation: How Digital Isolators Meet Certification Requiremen | PDF | HTML | 2021年 6月 11日 | |
| EVM User's guide | Universal Digital Isolator Evaluation Module | PDF | HTML | 2021年 3月 4日 | |
| Application brief | Considerations for Selecting Digital Isolators | 2018年 7月 24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)。
DIGI-ISO-EVM — 通用數位隔離器評估模組
DIGI-ISO-EVM 是一款評估模組 (EVM)，可評估任何 TI 單通道、雙通道、三通道、四通道或六通道數位隔離器裝置，並提供五種不同封裝 - 8 接腳窄體 SOIC (D)、8 接腳寬體 SOIC (DWV)、16 接腳寬體 SOIC (DWW)、16 接腳超寬體 SOIC (DWW) 和 16 接腳 (DBQ) 封裝。EVM 具備足夠 Berg 接腳選項，可用於評估具最少外部零組件的裝置。
| 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。