Texas Instruments SN65HVS882PWP

Overview

SN65HVS882PWP from Texas Instruments is an industrial 8-channel digital-input serializer with high-voltage field-side interface (up to 34 V), configurable debounce (0–3 ms), and integrated 5-V linear regulator. It serializes parallel sensor inputs for PLC/DCS digital input modules, supports IEC61131-2 Type 1/2/3 compliance via external R_IN/R_LIM, and provides LED drive outputs (RE0–RE7) with 3.15 mA typical on-state current.

For engineers reviewing the SN65HVS882PWP datasheet, SN65HVS882PWP pinout, SN65HVS882PWP application, or SN65HVS882PWP equivalent, key selection considerations include field-side voltage tolerance (34 V), input current limit adjustability (0.2–5.2 mA via RLIM), SPI-compatible serial interface timing (100 MHz max CLK), and thermal shutdown behavior (TOK active-low at 150°C).

Technical Context

The SN65HVS882PWP implements a parallel-load/serial-shift architecture: eight field inputs (IP0–IP7) are latched simultaneously on LD low, then shifted out serially via SOP on rising CLK edges while CE is low. Debounce filtering is implemented as a digital timer per channel, selectable via DB0/DB1 logic levels (0/1/3 ms), independent of input voltage level.

Its input stage uses a precision current mirror (n = 72) referenced to an internal 2.5-V bandgap, enabling accurate input current limiting (I_IP-LIM = 3.6 mA typ. at R_LIM = 25 kΩ). The on-chip 5-V regulator delivers up to 50 mA with ±2% line regulation (10–34 V input) and includes overcurrent protection (115 mA limit) and thermal foldback.

Key Specifications

Pinout & Package

SN65HVS882PWP is housed in a 28-pin HTSSOP (PWP) PowerPAD™ package with exposed thermal pad for enhanced heat dissipation in high-density industrial modules. The PowerPAD requires soldering to PCB ground plane for optimal thermal performance (θ_JB = 15°C/W).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar digital-input serializer applications.

Compared with MAX14912 and AD7403, the SN65HVS882PWP delivers purpose-built digital input serialization with integrated LED drive and regulator-reducing component count by 6+ parts per channel while maintaining direct SPI compatibility and IEC61131-2 compliance without ADC overhead or external decode logic.

Availability

SN65HVS882PWP is available at Aetrix Electronics and suitable for industrial PLCs, decentralized I/O systems, motion controllers, and PC-based DAQ racks requiring stable component supply across extended product lifecycles.

Supply support for SN65HVS882PWP includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and connectivity technologies for industrial, automotive, and communications markets.

The SN65HVS882PWP belongs to TI's industrial interface portfolio, designed specifically to simplify high-channel-count digital input conditioning in programmable logic controllers and distributed control systems operating in harsh electromagnetic environments.

FAQ

What is the maximum field-side input voltage supported by the SN65HVS882PWP?

The SN65HVS882PWP supports a field-side input voltage range of 10 V to 34 V on VCC and IPx pins. Absolute maximum rating is 36 V, but recommended operation is ≤34 V to ensure long-term reliability and thermal stability under full load conditions. This allows direct connection to standard 24-V industrial power buses without external regulation.

How does the SN65HVS882PWP achieve IEC61131-2 compliance for Type 1, 2, and 3 sensors?

The SN65HVS882PWP achieves IEC61131-2 compliance through configurable input thresholds and current limits. With R_IN = 1.2 kΩ and R_LIM = 25 kΩ, it delivers V_TH+ = 5.5 V and I_IP-LIM = 3.6 mA-meeting Type 1/3 ON thresholds. For Type 2, two inputs are paralleled to double current capacity (7.2 mA), satisfying higher ON-current requirements per IEC61131-2 Annex A.

Can the SN65HVS882PWP drive LEDs directly, and what is the current accuracy?

Yes, the SN65HVS882PWP drives LEDs directly via its eight RE0–RE7 constant-current sink outputs. Each delivers 3.15 mA typical (2.8–3.5 mA over temperature and voltage), with tight matching across channels (<±5%). No external current-setting resistors are needed-simplifying layout and improving channel-to-channel consistency in status indication.

What happens to the SN65HVS882PWP outputs during overtemperature conditions?

At 150°C junction temperature, the SN65HVS882PWP asserts TOK low to signal overtemperature. If temperature rises further to 170°C, all outputs (RE0–RE7, SOP, TOK) enter high-impedance state to prevent damage and isolate downstream circuitry. An internal 100-kΩ pull-down on TOK maintains logic-low signaling even during three-state mode for fail-safe monitoring.

Is the SN65HVS882PWP pin-compatible with other devices in the HVS88x family?

No, the SN65HVS882PWP is not pin-compatible with other HVS88x variants such as SN65HVS883 or SN65HVS884. While sharing the same 28-pin HTSSOP (PWP) package, pin functions differ significantly-for example, SN65HVS883 lacks the 5VOP regulator and TOK output, and uses different debounce control logic. Always verify pin mapping against the specific device datasheet before substitution.