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| 型号： | SI8422AB-B-IS |
| 厂商： | Silicon Laboratories Inc |
| 文件页数： | 24/37页 |
| 文件大小： | 0K |
| 描述： | IC ISOLATOR DGTL 2.5KV 8SOIC |
| 视频文件： | Digital Isolation Overview Digital Isolators vs. Optocouplers |
| 标准包装： | 96 |
| 系列： | ISOpro |
| 输入 - 1 侧/2 侧： | 1/1 |
| 通道数： | 2 |
| 电源电压： | 2.7 V ~ 5.5 V |
| 电压 - 隔离： | 2500Vrms |
| 数据速率： | 1Mbps |
| 传输延迟： | 35ns |
| 输出类型： | 逻辑 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SOICN |
| 包装： | 管件 |
| 工作温度： | -40°C ~ 125°C |
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Si8410/20/21 (5 kV)
Si8 422/23 ( 2. 5 & 5 k V)
3.3. Layout Recommendations
To ensure safety in the end user application, high voltage circuits (i.e., circuits with >30 V AC ) must be physically
separated from the safety extra-low voltage circuits (SELV is a circuit with <30 V AC ) by a certain distance
(creepage/clearance). If a component, such as a digital isolator, straddles this isolation barrier, it must meet those
creepage/clearance requirements and also provide a sufficiently large high-voltage breakdown protection rating
(commonly referred to as working voltage protection). Table 6 on page 16 and Table 7 on page 17 detail the
working voltage and creepage/clearance capabilities of the Si84xx. These tables also detail the component
standards (UL1577, IEC60747, CSA 5A), which are readily accepted by certification bodies to provide proof for
end-system specifications requirements. Refer to the end-system specification (61010-1, 60950-1, 60601-1, etc.)
requirements before starting any design that uses a digital isolator.
3.3.1. Supply Bypass
The Si841x/2x family requires a 0.1 μF bypass capacitor between V DD1 and GND1 and V DD2 and GND2. The
capacitor should be placed as close as possible to the package. To enhance the robustness of a design, it is further
recommended that the user also add 1 μF bypass capacitors and include 100 ? resistors in series with the inputs
and outputs if the system is excessively noisy.
3.3.2. Pin Connections
No connect pins are not internally connected. They can be left floating, tied to V DD , or tied to GND.
3.3.3. Output Pin Termination
The nominal output impedance of an isolator driver channel is approximately 50 ? , ±40%, which is a combination
of the value of the on-chip series termination resistor and channel resistance of the output driver FET. When driving
loads where transmission line effects will be a factor, output pins should be appropriately terminated with controlled
impedance PCB traces.
3.4. Fail-Safe Operating Mode
Si84xx devices feature a selectable (by ordering option) mode whereby the default output state (when the input
supply is unpowered) can either be a logic high or logic low when the output supply is powered. See Table 12 on
page 22 and "6. Ordering Guide" on page 29 for more information.
24
Rev. 1.3
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相关代理商/技术参数 |
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| SI8422AB-B-ISR | 功能描述:隔离器接口集成电路 Dual Ch 2.5kV Isolator RoHS:否 制造商:Texas Instruments 通道数量:2 传播延迟时间: 电源电压-最大:5.5 V 电源电压-最小:3 V 电源电流:3.6 mA 功率耗散: 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:SOIC-8 封装:Tube |
| SI8422AB-D-ISR | 功能描述:DGTL ISO 2.5KV GEN PURP 8SOIC 制造商:silicon labs 系列:汽车级，AEC-Q100 包装:剪切带（CT） 零件状态:在售 技术:容性耦合 类型:通用 隔离式电源:无 通道数:2 输入 - 输入侧 1/输入侧 2:1/1 通道类型:单向 电压 - 隔离:2500Vrms 共模瞬态抗扰度（最小值）:20kV/μs 数据速率:1Mbps 传播延迟 tpLH / tpHL（最大值）:35ns，35ns 脉宽失真（最大）:25ns 上升/下降时间（典型值）:2ns， 2ns 电压 - 电源:2.7 V ~ 5.5 V 工作温度:-40°C ~ 125°C 封装/外壳:8-SOIC（0.154"，3.90mm 宽） 供应商器件封装:8-SOIC 标准包装:1 |
| Si8422AD-A-IS | 功能描述:隔离器接口集成电路 Dual Ch 5kV Isolator, 1M, 1/1 RoHS:否 制造商:Texas Instruments 通道数量:2 传播延迟时间: 电源电压-最大:5.5 V 电源电压-最小:3 V 电源电流:3.6 mA 功率耗散: 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:SOIC-8 封装:Tube |
| SI8422AD-A-ISR | 制造商:Silicon Laboratories Inc 功能描述:DUAL CH 5KV ISOLATOR, 1M, 1/1, SOIC16, LEAD FREE - Tape and Reel |
| Si8422AD-B-IS | 功能描述:隔离器接口集成电路 Dual Ch 5kV Isolator 1M 1/1 RoHS:否 制造商:Texas Instruments 通道数量:2 传播延迟时间: 电源电压-最大:5.5 V 电源电压-最小:3 V 电源电流:3.6 mA 功率耗散: 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:SOIC-8 封装:Tube |
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