LS6522-S

Overview

The LS6522-S is a PIR sensor interface integrated circuit manufactured by LSI Computer Systems. It is designed to provide a direct interface with Passive Infrared (PIR) sensors for motion detection applications. The component facilitates the processing of signals from pyroelectric sensors, enabling reliable detection of human movement in security and automation systems.

Feature Summary

• Provides direct electrical interface capabilities for connecting PIR sensors
• Processes infrared signal inputs for motion detection logic

Applications

• Security alarm systems requiring motion detection
• Automated lighting control circuits
• Access control entry points

Procurement Notes

Verify the manufacturer designation carefully, as LSI Computer Systems is distinct from later entities such as Avago or Broadcom that acquired related assets. Confirm the specific suffix 'S' against official documentation to ensure correct package and temperature grade identification before procurement.

Selection Notes

Select this component when a dedicated interface solution for PIR sensors is required rather than a general-purpose amplifier. Ensure compatibility with the target sensor's output impedance and voltage levels. Consider power supply constraints if deploying in battery-operated devices, though specific low-power variants like the LS6525 may be more suitable for those cases.

Part Context

The LS6522 belongs to a family of interface ICs from LSI Computer Systems, which also includes models like the LS6501, LS6505, and LS6511. These components share the common function of interfacing with pyroelectric sensors but may differ in pinout, sensitivity, or power consumption characteristics.