PT8A2642PE

Sensor And Detector Interfaces Overview

The PT8A2642PE is a CMOS LSI chip designed for automatic PIR lamp control, specifically configured as a relay driver. It operates at a typical supply voltage of 5V with an average current consumption of 120µA. The device features a two-stage operational amplifier for signal filtering and includes a built-in noise rejection circuit. It supports AC 220V/50Hz and 110V/60Hz power lines. Key electrical parameters include a system oscillator frequency of 16KHz (typical) and a regulated VEE output of approximately 3.6V. The package is a lead-free 16-pin DIP.

Sensor And Detector Interfaces Feature Summary

• Integrated relay drive output for direct switching applications
• Selectable operating modes including ON, AUTO, and OFF via MODE pin
• Built-in daylight detection using CDS sensor input
• Adjustable output duration controlled by external RC components

Sensor And Detector Interfaces Applications

• Automatic PIR lamp control systems
• AC mains powered lighting switches
• Motion-activated security lighting

Sensor And Detector Interfaces Procurement Notes

Verify the specific ordering suffix to confirm the package type and tape/reel configuration. Confirm RoHS compliance status and check for any availability notices associated with the Pericom product line before finalizing procurement plans.

Sensor And Detector Interfaces Selection Notes

Select this component when a relay output is required instead of a TRIAC pulse. Ensure the application utilizes a 3-wire configuration compatible with the active high relay drive. Verify that the external timing components meet the recommended resistance and capacitance values for desired duration settings.

Sensor And Detector Interfaces Part Context

This part belongs to the PT8A264X series of PIR sensor light switch controllers manufactured by Diodes Incorporated (formerly Pericom). The series differentiates models based on output type (TRIAC vs. Relay) and available pins for comparator or CDS outputs.

Sensor And Detector Interfaces Replacement Considerations

PT8A2641PE: Offers TRIAC drive output instead of relay. PT8A2645PE through PT8A2648PE: Variants with additional output pins such as COMPO or CDSO.