Analog Devices / Maxim Integrated 美信 MAX14930-2 4 通道 2.75kV 数字隔离器
美信 MAX14930-2 4 通道 2.75kV 数字隔离器可在高达 +125°C 的环境温度中在不同功率范围的电路间传送数字信号，用于对数字信号进行强劲的电流隔离， 可耐受 2.75kV（RMS） 达 60s（VISO），持续承受 445V(RMS) （VIOWM), 具有 630VP 重复峰值电压（VIORM），承受±10kV 浪涌，符合 IEC 61000-4-5。提供全部三种可能的单向通道配置，以支持任何 4 通道设计，包括 SPI、RS-232、RS-485 和数字 I/O 应用。这些器件可直接与大多数微处理器及 FPGA 连接。该 MAX14930-2 系列器件有各种数据速率可选，从 DC 到高达 1Mbps、25Mbps 或 150Mbps。每一器件分为默认高或默认低配置。MAX14930-2 数字隔离器两侧均有独立的 1.71V 至 5.5V 电源，因而非常适合用作电平转换器。
特性
- Robust galvanic isolation of digital signals
- Withstands 1kVRMS for 60s (VISO) (MAX14130–MAX14131)
- Withstands 2.75kVRMS for 60s (VISO) (MAX14930–MAX14932)
- Continuously withstands 445VRMS(VIOWM(MAX14930–MAX14932)
- 630VP repetitive peak voltage (VIORM)(MAX14930–MAX14932)
- Withstands ±10kV surge per IEC 61000-4-5
- Many options support broad applications
- 3 Data rates (1Mbps, 25Mbps, 150Mbps)
- 3 Channel direction configuration
- 2 Output default states (high or low)
- 3 Packages (3.8mm, 4mm, or 8mm creepage and clearance)
- Interfaces directly with most micros and FPGAs
- Accepts 1.71V to 5.5V supplies
- Low power consumption at high data rates
- At 1.8V
- 2.5mA per channel typical at 1Mbps
- 5.25mA per channel typical at 100Mbps
- At 3.3V
- 2.6mA per channel typical at 1Mbps
- 7.1mA per channel typical at 100Mbps
- At 1.8V
应用
- Fieldbus communications for industrial automation
- Isolated SPI, RS-232, RS-485/RS-422
- General multichannel isolation applications
- Battery management
- Medical systems
Block Diagram
Additional Resource
发布日期: 2015-06-29
| 更新日期: 2023-04-17