Texas Instruments ISO732x 低功耗双通道数字隔离器

德州仪器 ISO732x 低功耗双通道数字隔离器提供符合UL标准的 1 分钟 3000V_RMS 的电流隔离，以及符合 VDE 标准的 4242 V_PK 隔离。这些器件具有四个隔离通道，其逻辑输入和输出缓冲器。由二氧化硅 (SiO₂)绝缘隔栅分离开来。ISO7320 的两个通道方向相同，而 ISO7321 的两个通道方向相反。为防止输入功率或信号损失，后缀为“F”的器件默认输出“低”电平，后缀没有“F”的器件则默认输出“高”电平。当与隔离电源配合使用时，这些器件可防止数据总线或其他电路上的噪声电流进入局部系统接地并干扰或损坏敏感电路。

特性

25Mbps signaling rate
Integrated noise filter on the inputs
Default output 'High' and 'Low' options
Low Power Consumption: Typical I_CC per Channel at 1Mbps
- ISO7320: 1.2mA (5V supplies), 0.9mA (3.3V supplies)
- ISO7321: 1.7mA (5V supplies), 1.2mA (3.3V supplies)
33ns typical (5V supplies) low propagation delay
3.3V and 5V level translation
-40°C to +125°C temperature range
65KV/µs transient immunity, typical (5V supplies)
Robust Electromagnetic Compatibility (EMC)
- System-level ESD, EFT, and surge immunity
- Low emissions

>25 years isolation barrier life
Operates from 3.3V and 5V supplies
Narrow body SOIC-8 package
Safety and Regulatory Approvals
- 4242V_PK isolation per DIN V VDE V 0884-10 and DIN EN 61010-1
- 3000V_RMS 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

应用

Opto-Coupler Replacement
- Industrial FieldBus
  - ProfiBus
  - ModBus
  - DeviceNet™ data buses
- Servo control interface
- Motor control
- Power supplies
- Battery packs