34-V, 8-channel digital-input serializer for industrial automation & process control
Product details
Parameters
Package | Pins | Size
Features
- 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
Description
The SN65HVS882 is an eight channel, digital-input serializer for high-channel density digital input modules in industrial 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.
Technical documentation
Type | Title | Date | |
---|---|---|---|
* | Datasheet | Industrial 8-Digital-Input Serializer datasheet | May 15, 2008 |
Application note | How to Design Isolated Comparators for ±48V, 110V and 240V DC and AC Detection (Rev. A) | Mar. 14, 2018 | |
Application note | How To Simplify Isolated 24-V PLC Digital Input Module Designs (Rev. B) | Mar. 14, 2018 | |
Application note | How to Improve Speed and Reliability of Isolated Digital Inputs in Motor Drives | Dec. 16, 2017 | |
User guide | SN65HVS882 EVM (Rev. A) | Feb. 23, 2009 | |
Application note | Special Features of the SN65HVS88x Family of Digital Input Serializers | Oct. 07, 2008 | |
Application note | Cascading of input serializers boosts channel density for digital inputs | Aug. 06, 2008 | |
Application note | Q3 2008 Issue Analog Applications Journal | Aug. 06, 2008 |
Design & development
For additional terms or required resources, click any title below to view the detail page where available.Hardware development
Description
The SN65HVS882 evaluation module (EVM) supports the rapid, parametric evaluation of the SN65HVS882 digital input serializer. It is intended to be used with the SN65HVS882 (SLAS601). Note that this EVM is not intended for electromagnetic compatibility (EMC) tests.
Features
- 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 (...)
Design tools & simulation
Features
- Leverages Cadence PSpice Technology
- Preinstalled library with a suite of digital models to enable worst-case timing analysis
- Dynamic updates ensure you have access to most current device models
- Optimized for simulation speed without loss of accuracy
- Supports simultaneous analysis of multiple products
- (...)
Reference designs
CAD/CAE symbols
Package | Pins | Download |
---|---|---|
HTSSOP (PWP) | 28 | View options |
Ordering & quality
- RoHS
- REACH
- Device marking
- Lead finish/Ball material
- MSL rating/Peak reflow
- MTBF/FIT estimates
- Material content
- Qualification summary
- Ongoing reliability monitoring
Recommended products may have parameters, evaluation modules or reference designs related to this TI product.
Support & training
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