●The SN65HVS882 is an eight channel, digital-input serializer for high-channel density digital input modules inindustrial automation. 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. Input signals are current-limited and then validated by internal debounce filters.
●With the addition of a few external components, the input switching characteristics 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 integrated voltage regulator provides a 5-V output to supply low-power isolators. An on-chip temperature sensor provides diagnostic information for graceful shutdown and system safety.
●The SN65HVS882 is available in a 28-pin PWP PowerPAD™ package, allowing for efficient heat dissipation. The device is characterized for operation at temperatures from -40°C to 125°C.
● Eight Inputs
● High Input Voltage up to 34 V
● Selectable Debounce Filters 0 ms to 3 ms
● Flexible Input Current Limit 0.2 mA to 5.2 mA
● Field Pins Protected to 15-kV HBM ESD
● Output Drivers for External Status LEDs
● Cascadable in Multiples of Eight Inputs
● SPI-Compatible Interface
● Regulated 5-V Output for External Isolator
● Over-Temperature Indicator
● APPLICATIONS
● Sensor Inputs for Industrial Automation and Process Control
● High Channel Count Digital Input Modules for PC and PLC Systems
● Decentralized I/O Modules
● Motion Control Systems
