SN65HVS885
- Eight Digital Sensor Inputs
- High Input Voltage up to 34 V
- Selectable Debounce Filters From 0 ms to
3 ms - Flexible Input Current-Limited – 0.2 mA to
5.2 mA - Field Inputs Protected to 15-kV ESD
- Single 5-V Supply
- Output Drivers for External Status LEDs
- Cascadable for More Inputs in Multiples of Eight
- SPI-Compatible Interface
- Overtemperature Indicator
- APPLICATIONS
- Industrial PCs
- Digital I/O Cards
- High Channel Count Digital Input Modules
- Decentralized I/O Modules
All other trademarks are the property of their respective owners
The SN65HVS885 is an eight channel, digital-input serializer for high-channel density digital input modules in industrial and building automation. Operating from a 5-V supply the device accepts field input voltages of up to 34 V. In combination with galvanic isolators the device completes the interface between the high voltage signals on the field-side and the low-voltage signals on the controller side. Inputs signals are current limited and then validated by internal debounce filters.
With the addition of few external components, the input switching characteristic can be configured in accordance with IEC61131-2 for Type 1, 2 and 3 sensor switches.
Upon the application of load and clock signals, input data is latched in parallel into the shift register and afterwards clocked out serially.
Cascading of multiple devices is possible by connecting the serial output of the leading device with the serial input of the following device, enabling the design of high-channel count input modules. Multiple devices can be cascaded through a single serial port, reducing both the isolation channels and controller inputs required.
Input status can be visually indicated via constant current LED outputs. The current limit on the inputs is set by a single, external, precision resistor. An on-chip temperature sensor provides diagnostic information for graceful shutdown and system safety.
The SN65HVS885 is available in a 28-pin PWP PowerPAD package, allowing for efficient heat dissipation. The device is specified for operation at temperatures from 40°C to 125°C.
技术文档
类型 | 标题 | 下载最新的英语版本 | 日期 | |||
---|---|---|---|---|---|---|
* | 数据表 | SN65HVS885 34-V Digital-Input Serializer for 5-V Systems 数据表 (Rev. A) | PDF | HTML | 2015年 10月 19日 | ||
应用简报 | 如何简化隔离型 24V PLC 数字输入模块设计 (Rev. C) | PDF | HTML | 英语版 (Rev.C) | PDF | HTML | 2024年 11月 25日 | |
应用简报 | How to Design Isolated Comparators for ±48V, 110V and 240V DC and AC Detection (Rev. A) | 2018年 3月 14日 | ||||
应用简报 | How to Improve Speed and Reliability of Isolated Digital Inputs in Motor Drives | 2017年 12月 16日 | ||||
EVM 用户指南 | SN65HVS885EVM User's Guide | 2009年 1月 13日 |
设计和开发
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SN65HVS885EVM — SN65HVS885EVM 评估模块
SN65HVS885EVM 评估模块 (EVM) 支持对 SN65HVS885 数字输入串行器的快速参数评估。它专门用于与 SN65HVS885 数据表 (SLAS638) 配合使用。请注意,此 EVM 不适用于电磁兼容性 (EMC) 测试。
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TIDA-00017 — 用于可编程逻辑控制器 (PLC) 的 8 通道数字输入模块
封装 | 引脚 | CAD 符号、封装和 3D 模型 |
---|---|---|
HTSSOP (PWP) | 28 | Ultra Librarian |
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