• - 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 ISO721 is a digital isolator with a logic input and output buffer separated by a silicon oxide (SiO₂) insulation barrier. This barrier provides galvanic isolation of up to 4000 V. Used in conjunction with isolated power supplies, this device prevents 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. Across the isolation barrier, a differential comparator receives the logic transition information, then sets or resets a flip-flop and the output circuit accordingly. A periodic update pulse is sent across the barrier to ensure the proper dc level of the output.

特性

• Qualified for Automotive Applications
• 4000-V_(peak) Isolation
  • UL 1577, IEC 60747-5-2 (VDE 0884, Rev 2), IEC 61010-1
  • 50-kV/s Transient Immunity (Typ)
• Signaling Rate 0 Mbps to 150 Mbps
  • Low Propagation Delay
  • Low Pulse Skew
    (Pulse-Width Distortion)
• Low-Power Sleep Mode
• High Electromagnetic Immunity
• Low Input Current Requirement
• Failsafe Output
• Drop-In Replacement for Most Optical and Magnetic Isolators

⁽¹⁾ The signaling rate of a line is the number of voltage transitions that are made per second expressed in the units bps (bits per second).