Si834x 隔离式智能开关

Si834x devices provide four isolated high- or low-side switches with low "ON" state switch resistance. Si834x switches are ideal for driving resistive and inductive loads including solenoids, relays, and lamps commonly found in industrial control systems such as programmable logic controllers (PLC). Each switch is galvanically isolated for safety using our groundbreaking CMOS based isolation technology.

 Si834x switches are extremely robust and flexible load drivers and are capable of providing up to .5 A of IEC61131-2 compliant continuous current in a quad channel configuration. Each switch can detect an open circuit condition and is protected against over-current, over-voltage from demagnetization (inductive kick or flyback voltage), and over-temperature conditions. 创新型多电压智能夹用于有效处理无限制的退磁能量 (EAS)。The Si834xx over-current protection includes an innovative inrush current mode on select products, allowing the switch to drive challenging loads such as lamps and DC motors. Additionally, the device power supplies are monitored, and the switches are safely constrained or shutdown if a fault is detected. View the current datasheet errata

Demagnetization energy (EAS)
8 Joules
Diagnostic reports


  • 高侧或低侧开关
  • 逻辑电源:2.25 V – 5.5 V
  • 开关电源:9 V – 32 V
  • 快速 (10 μs) 更新速率
  • High continuous current & low RON
    • 4 个通道:700 mA (145 mΩ)
  • 独有的多电压输出夹
    • Unlimited demagnetization (EAS)
    • 快速高效关闭
  • 浪涌电流模式:7 A (20 ms)
  • 电流受限的过载保护
  • 过温保护
  • 欠压保护电源
  • 多达 8 个不同的诊断程序
    • 多个电源报告
    • 过电流,过温
    • 开路警告
    • 通信错误
  • 通道状态指示灯
  • 专用故障指示灯
  • 异步禁用输出
  • 通过 SPI 控制 128 个通道
  • 1.5 kVRMS 安全等级隔离
  • 瞬态抗扰度 > 100 kV/μs
  • 符合 IEC 61131-2 标准
  • Compact 9 x 9 DFN-32 package
  • 5 kV ESD 保护
  • -40 – 125 ˚C 工作温度
Find the Right Si834x Device 选择列
零件号 输出类型 输入类型 连续输出电流 指示灯输出 隔离额定值
供电 并行 0.7 输出状态和低电压 1.5 kVrms
供电 SPI 0.7 输出状态 1.5 kVrms
供电 并行和 SPI 0.7 1.5 kVrms
吸入 并行 0.7 输出状态和低电压 1.5 kVrms
吸入 SPI 0.7 输出状态 1.5 kVrms
吸入 并行和 SPI 0.7 1.5 kVrms

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