Texas Instruments ISO1540/41 低功耗双向隔离器
Texas Instruments ISO1540和ISO1541 低功耗双向 隔离器 与 I²C 接口兼容。这些器件使用一个采用 TI 电容隔离技术的二氧化硅 (SiO2) 隔栅将它们的逻辑输入和输出缓冲器隔离开来。 当与隔离电源配合使用时，IS01540和IS1541 可阻止高电压、隔离接地，并防止噪声电流进入本地接地并干扰或损坏敏感电路。与光电耦合器相比较，这个隔离技术提供针对功能、性能、尺寸和功耗优势。ISO1540和ISO1541 启用一个完全隔离的小尺寸规格 I²C 接口。 ISO1540 有两个用于时钟和数据线路的隔离式双向通道，而 ISO1541 有一个双向数据通道和一个单向时钟通道。ISO1541 在具有一个单主器件的应用中非常实用，而 ISO1540 非常适合于多主器件应用。
The ISO154x/ISO154x-Q1 enable a complete isolated I²C interface to be implemented within a small form factor. ISO1540/-Q1 has two isolated bidirectional channels for clock and data lines while ISO1541/-Q1 has a bidirectional data and a unidirectional clock channel. ISO1541/-Q1 is useful in applications that have a single master while ISO1540/-Q1 is ideally fit for multi-master applications. The ISO154x-Q1 devices are AEC-Q100 qualified for automotive applications.
特性
- Isolated Bidirectional, I2C Compatible, Communications
- Supports up to 1MHz Operation
- 3V to 5.5V Supply Range
- Number of Channels: 2
- Insulation Rating (VRMS): 2500
- Datarate (Mbps): 1
- Open Drain Outputs with 3.5mA Side 1 and 35mA Side 2 Sink Current Capability
- -40°C to 125°C Operating Temperature
- ±50kV/µs Transient Immunity (Typical)
- HBM ESD Protection of 4kV on All Pins; 8kV on Bus Pins
应用
- Isolated I2C Bus
- SMBus and PMBus Interfaces
- Open-drain Networks
- Motor Control Systems
- Battery Management
- I2C Level Shifting
Development Tools
Texas Instruments TPS23523EVM-863评估模块 (EVM)
包含用于TPS23523的评估和基准电路。
Texas Instruments MSP-ISO隔离适配器板
可为MSP430 LaunchPad在调试电路和目标电路之间提供电隔离的模块。
ISO154xEVM Evaluation Module
Texas Instruments ISO154xEVM Evaluation Module has been designed to allow the user to evaluate the electrical parameter performance and features of TI's ISO154x family of 3kV I²C isolators, which are based on TI's capacitive isolation technology. ISO154xEVM Evaluation Module provides for the evaluation of ISO1540 and ISO1541.