ZHCS455F December 2010 – July 2015 ISO7420E , ISO7420FE , ISO7421E , ISO7421FE
PRODUCTION DATA.
- 1 特性
- 2 應用
- 3 說明
- 4 修訂歷史記錄
- 5 Pin Configuration and Functions
-
6 Specifications
- 6.1 Absolute Maximum Ratings
- 6.2 ESD Ratings
- 6.3 Recommended Operating Conditions
- 6.4 Thermal Information
- 6.5 Electrical Characteristics: VCC1 and VCC2 = 5 V ± 10%
- 6.6 Electrical Characteristics: VCC1 = 5 V ± 10%, VCC2 = 3.3 V ± 10%
- 6.7 Electrical Characteristics: VCC1 = 3.3 V ± 10%, VCC2 = 5 V ± 10%
- 6.8 Electrical Characteristics: VCC1 and VCC2 = 3.3 V ± 10%
- 6.9 Power Dissipation Characteristics
- 6.10 Switching Characteristics: VCC1 and VCC2 = 5 V ± 10%
- 6.11 Switching Characteristics: VCC1 = 5 V ± 10%, VCC2 = 3.3 V ± 10%
- 6.12 Switching Characteristics: VCC1 = 3.3 V ± 10%, VCC2 = 5 V ± 10%
- 6.13 Switching Characteristics: VCC1 and VCC2 = 3.3 V ± 10%
- 6.14 Typical Characteristics
- 7 Parameter Measurement Information
- 8 Detailed Description
- 9 Applications and Implementation
- 10Power Supply Recommendations
- 11Layout
- 12器件和文檔支持
- 13機械、封裝和可訂購信息
1 特性
2 應用
- 在下列使用中的光電耦合器替代產品：
- 工業用 FieldBus
- ProfiBus
- ModBus
- DeviceNet™數據總線
- 伺服控制接口
- 電機控制
- 電源
- 電池組
- 工業用 FieldBus
3 說明
ISO742x 可提供符合 UL 標準的長達 1 分鐘且高達 2500VRMS 的電流隔離，以及符合 VDE 標準的 4242VPK 隔離。這些器件有 2 個隔離通道。每個通道有一個邏輯輸入和輸出緩沖器，這兩個器件由一個硅二極管(SiO2) 絕緣隔柵進行分離。通過與隔離電源一起使用，這些器件可防止數據總線或者其它電路上的噪音電流進入本地接地并干擾或者損壞敏感電路。ISO7420 的兩個通道方向相同，而 ISO7421 的兩個通道方向相反。如果出現輸入功率或信號損失，則后綴為“F”的器件默認輸出“低”電平，后綴沒有“F”的器件則默認輸出“高”電平。ISO742x 未集成噪聲濾波器，因而傳播延遲相對短暫。
這些器件具有晶體管晶體管邏輯電路 (TTL) 輸入閾值，工作電壓范圍為 3V 到 5.5V。當由一個 3.3V 電源供電時，所有輸入均為 5V 耐壓。
器件信息(1)
| 器件型號 | 封裝 | 封裝尺寸（標稱值） |
|---|---|---|
| ISO7420E | SOIC (8) | 4.90mm x 3.91mm |
| ISO7420FE | ||
| ISO7421E | ||
| ISO7421FE |
- 要了解所有可用封裝，請見數據表末尾的可訂購產品附錄。
簡化電路原理圖
VCCI 和 GNDI 分別是輸入通道的電源和接地連接。
VCCO 和 GNDO 分別是輸出通道的電源和接地連接。
4 修訂歷史記錄
Changes from E Revision (January 2013) to F Revision
- 已根據最新的 TI 標準更改數據表格式Go
- Added 引腳配置和功能部分，ESD 額定值表，特性 描述 部分，器件功能模式，應用和實施部分，電源相關建議部分，布局部分，器件和文檔支持部分以及機械、封裝和可訂購信息部分Go
- 已刪除 說明部分的如下文本：“CC 級器件集成有應用于惡劣環境的 10ns 濾波器，在這種環境下，器件的輸入引腳上可能存在短噪聲脈沖。”Go
- VDE 標準更改為 DIN V VDE V 0884-10 (VDE V 0884-10):2006-12 Go
- Deleted CC-grade from tPLH, tPHL in the Switching Characteristics tableGo
- Deleted CC-grade from tPLH, tPHL in the Switching Characteristics tableGo
- Deleted CC-grade from tPLH, tPHL in the Switching Characteristics tableGo
- Deleted CC-grade from tPLH, tPHL in the Switching Characteristics tableGo
- Changed the Available Options Table To the Feature Description tableGo
Changes from D Revision (December 2011) to E Revision
- 已刪除器件 ISO7420FCC 和 ISO7421FCCGo
- Changed the NOTE: textGo
- Added table Note to VIORMGo
- Changed Z to Undetermined for the OUTPUT OUTA, OUTB column of the FUNCTION TABLEGo
Changes from C Revision (March 2011) to D Revision
Changes from B Revision (January 2011) to C Revision
- 已添加器件 ISO7420FCC 和 ISO7421FCCGo
- 已將特性要點更改為：低傳播延遲：7ns，典型值（E 級）Go
- 已將特性要點更改為：低脈沖偏移：200ps，典型值（E 級）Go
- 已更改安全及管理批準列表Go
- 已更改數據表 說明Go
- Changed the Supply Current values for ISO7421x at 10, 25, and 50 MbpsGo
- Changed the Supply Current values for ISO7421x at 10, 25, and 50 MbpsGo
- Changed the Supply Current values for ISO7421x at 10, 25, and 50 MbpsGo
- Changed the Supply Current values for ISO7421x 25 and 50 MbpsGo
- Added CC-grade and valued to tPLH, tPHL in the Switching Characteristics tableGo
- Added ISO7421x values for Pulse width distortion, Channel-to-channel output skew time, and Part-to-part skew timeGo
- Added CC-grade and valued to tPLH, tPHL in the Switching Characteristics tableGo
- Added ISO7421x values for Pulse width distortion and Channel-to-channel output skew timeGo
- Added CC-grade and valued to tPLH, tPHL in the Switching Characteristics tableGo
- Added CC-grade and valued to tPLH, tPHL in the Switching Characteristics tableGo
- Added graphs Figure 5, Figure 6, Figure 7, and Figure 8Go
- Added graphs Figure 14 and Figure 15Go
- Changed Note 1 Figure 16Go
- Changed Figure 17Go
- Changed the Available Options TableGo
- Changed Isolation resistance test conditionsGo
- Changed the values of VIORM and VPR in the INSULATION CHARACTERISTICS tableGo
- Changed the value of VIOTM in the INSULATION CHARACTERISTICS table From: 4000 To: 4242Go
- Changed Figure 21Go
- Changed PU to X in the last row of the FUNCTION TABLEGo
- Added section: SUPPLY CURRENT EQUATIONSGo
Changes from A Revision (December 2010) to B Revision
- 將特性著重號從：ISO7421:1Mbps下為TBDmA，25Mbps下為TBDmA改到：ISO7421：1Mbps下為1.8mA，25Mbps下為2.8mAGo
- Updated the ISO7421x Supply Current values for VCC1 and VCC2 = 5VGo
- Updated the ISO7421x Supply Current values for VCC1 = 5V and VCC2 = 3.3VGo
- Updated the ISO7421x Supply Current values for VCC1 = 3.3V and VCC2 = 5VGo
- Updated the ISO7421x Supply Current values for VCC1 and VCC2 = 3.3VGo
Changes from * Revision (December 2010) to A Revision
- Changed the Max values for Supply current for VCC1 and VCC2, CL = 15pFGo