SN65HVS880 - 用于工业数字输入的 8 输入额定 24V 数字输入串行器

SN65HVS880是TI德州仪器公司的一款工业级串行器/解串器产品，SN65HVS880是用于工业数字输入的 8 输入额定 24V 数字输入串行器，本站介绍了SN65HVS880的封装应用图解、特点和优点、功能等，并给出了与SN65HVS880相关的TI元器件型号供参考。

SN65HVS880 - 用于工业数字输入的 8 输入额定 24V 数字输入串行器 - 工业级串行器/解串器 - 串行器、解串器 - 德州仪器

产品描述

The SN65HVS880 is a 24-V, eight-channel, digital-input serializer for high-channel density digital input modules of PC and PLC based systems in industrial automation. In combination with galvanic isolators the device completes the interface between the 24-V sensor outputs of the field-side and the low-voltage controller inputs at the control-side. Input signals provided by EN60947-5-2 compliant 2- and 3-wire proximity switches are current-limited and then validated by internal debounce filters. The input switching characteristic is 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 via a subsequent isolator into a serial PLC input.

Cascading of multiple SN65HVS880 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. Input status is indicated via 3-mA constant current LED outputs. An external precision resistor is required to set the internal reference current. The integrated voltage regulator provides a 5-V output to supply low-power isolators. An on-chip temperature sensor together with an internal supply voltage monitor provides a chip-okay (CHOK) indication.

The SN65HVS880 comes in a 28-pin PWP PowerPAD package allowing for efficient heat dissipation. The device is specified for operation at temperatures from -40°C to 85°C.

产品特性

Eight Sensor Inputs
- High Input Voltage up to 30 V
- Selectable Debounce Filters From 0 ms to 3 ms
- Adjustable Current Limits From 0.2 mA to 5.2 mA
- Field Inputs and Supply Lines Protected to 15-kV HBM
Output Drivers for External Status LEDs
Cascadable for More Inputs in Multiples of Eight
SPI-Compatible Interface
Regulated 5-V Output for External Digital Isolator
Over-Temperature and Low-Supply Voltage Indicator
APPLICATIONS
- Sensor Inputs for Industrial Automation and Process Control
  - IEC61131-2 Type 1, 2, or 3 Switches
  - EN60947-5-2 Proximity Switches
- High Channel Count Digital Input Modules for PC and PLC Systems
- Decentralized I/O Modules

PowerPAD Is a trademark of Texas Instruments

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