HI-8436PQIF

Power Management - Specialized Overview

The HI-8436PQIF is a 32-channel discrete-to-digital sensor interface circuit fabricated using Silicon-on-Insulator (SOI) technology. It operates within a supply voltage range of 3V to 3.6V and supports an operating temperature range from -40°C to +85°C. The device interfaces via a Serial Peripheral Interface (SPI) and features four banks of eight sense inputs programmable as Ground/Open or Supply/Open sensors. Each input includes internal lightning protection compliant with DO-160G Section 22, Category AZ, BZ, and ZZ standards without requiring external components.

Power Management - Specialized Feature Summary

• Utilizes Silicon-on-Insulator (SOI) technology for robust discrete-to-digital sensing capabilities
• Provides integrated lightning protection meeting DO-160G Section 22 requirements without external components
• Features configurable sense inputs supporting both Ground/Open and Supply/Open sensing modes

Power Management - Specialized Applications

• Avionics discrete to digital sensing systems
• Flight control and navigation equipment
• Military helicopter programs including Blackhawk and Apache variants

Power Management - Specialized Procurement Notes

Verify the specific suffix against official Holt Integrated Circuits documentation to confirm exact package type and temperature grade. Ensure compliance with RoHS status and lead finish specifications required by your assembly process. Confirm that the SPI interface timing matches your host controller capabilities before integration.

Power Management - Specialized Selection Notes

Select this component when high-density discrete sensing is required in avionics environments. The SOI fabrication offers enhanced reliability compared to standard CMOS processes. Verify that the 3V to 3.6V supply range aligns with your system power architecture and that the SPI interface is compatible with your digital processing unit.

Power Management - Specialized Part Context

Holt Integrated Circuits specializes in IC data bus solutions for the avionics industry, supplying manufacturers worldwide. Their portfolio includes ARINC 429, MIL-STD-1553, and EBR-1553 standards support. This sensor interface complements their line drivers and receivers used in commercial aircraft and military helicopter programs.

Power Management - Specialized Replacement Considerations

Consult official manufacturer substitution lists for verified equivalents. Generic replacements may not match the specific SOI technology or integrated lightning protection ratings required for DO-160G compliance.