Analog Devices / Maxim Integrated MAX12930/MAX12931双通道数字隔离器
Maxim MAX12930/MAX12931双通道数字隔离器在具有不同电源域的电路之间传输数字信号，同时在1.8V下1Mbps时每通道的功耗却低至0.65mW。MAX12930/MAX12931的这两个通道以相反的方向传输数据，这使得MAX12930/MAX12931非常适合用于隔离收发器的发射和接收线路。该器件具有25Mbps或150Mbps的最大数据速率，其中默认输出状态有高输出或低输出两种。默认情况指输入未通电或输入为开路时输出所呈现的状态。独立的1.71V至5.5V电源分别用于隔离器两侧的供电，这使该器件非常适合用作电平转换器。
The Analog Devices MAX12930 and MAX12931 are available in an 8-pin, narrow-body SOIC package. In addition, the MAX12931 is available in a 16-pin, wide-body SOIC package. The 8-pin narrow-body SOIC package has a minimum comparative tracking index (CTI) of 400V, which gives it a group II rating in creepage tables. The 16-pin wide-body SOIC package has a CTI of 600V, which gives it a group I rating in creepage tables. All devices are rated for operation at ambient temperatures of -40°C to +125°C.
特性
- Robust galvanic isolation of digital signals
- Wide-body variant withstands 5kVRMS for 60s (VISO)
- Narrow-body withstands 3kVRMS for 60s (VISO)
- Wide-body variant continuously withstands 848VRMS (VIOWM)
- Narrow-body variant continuously withstands 445VRMS (VIOWM)
- Withstands ±10kV surge between GNDA and GNDB with 2/50µs waveform
- High CMTI (50kV/µs, typical)
- Options to support a broad range of applications
- 2 data rates (25Mbps/150Mbps)
- 2 channel direction configurations
- 2 output default states (high or low)
- Low power consumption
- 3mW per channel at 1Mbps with VDD = 3.3V
- 3mW per channel at 100Mbps with VDD = 1.8V
- Safety regulatory approvals
- UL according to UL1577
- cUL according to CSA Bulletin 5A
- VDE 0884-10 Basic
- Physical characteristics
- -40°C to +125°C operating temperature range
- Package options
- Narrow-body SOIC-8 (MAX12930 and MAX12931)
- Wide-body SOIC-16 (MAX12931 only)
应用
- Fieldbus communications for industrial automation
- Isolated RS232, RS-485/RS-422, CAN
- General isolation applications
- Battery management
- Medical systems
MAX12930/MAX12931框图
发布日期: 2016-11-02
| 更新日期: 2023-04-11