• - 交流-直流(AC-DC)控制器和稳压器
• - 直流-直流(DC-DC)控制器、转换器和稳压器
• - 电压和电流管理
• - 通讯IC
• - 驱动器
• - 热管理

• - 时钟及数据分配
• - 标准逻辑

• - 放大器和比较器
• - 模拟开关
• - 数字电位计
• - 接口
• - EMI和RFI滤波器

• - EEPROM存储器
• - 非易失性只读存储器(NVRAM)
• - SRAM存储器

说明

The ISO7220 and ISO7221 are dual-channel digital isolators. To facilitate PCB layout, the channels are oriented in the same direction in the ISO7220 and in opposite directions in the ISO7221. These devices have a logic input and output buffer separated by TI’s silicon-dioxide (SiO₂) isolation barrier, providing galvanic isolation of up to 4000 V. Used in conjunction with isolated power supplies, these devices block high voltage, isolate grounds, and prevent noise currents on a data bus or other circuits from entering the local ground and interfering with or damaging sensitive circuitry.

A binary input signal is conditioned, translated to a balanced signal, then differentiated by the capacitive isolation barrier.

特性

• 1, 5, 25, and 150-Mbps Signaling Rate Options
  • Low Channel-to-Channel Output Skew; 1 ns max
  • Low Pulse-Width Distortion (PWD); 1 ns max
  • Low Jitter Content; 1 ns Typ at 150 Mbps
• Typical 25-Year Life at Rated Voltage
  (see app. note SLLA197 and )
• 4000-V_peak Isolation, 560 V_peak V_IORM
  • UL 1577, IEC 60747-5-2 (VDE 0884, Rev 2),
    IEC 61010-1, IEC 60950-1 and CSA Approved
  • 50 kV/µs Typical Transient Immunity
• Operates with 3.3-V or 5-V Supplies
• 4 kV ESD Protection
• High Electromagnetic Immunity
• –40°C to 125°C Operating Range
• APPLICATIONS
  • Industrial Fieldbus
    • Modbus
    • Profibus™
    • DeviceNet Data Buses
  • Computer Peripheral Interface
  • Servo Control Interface
  • Data Acquisition