DESCRIPTION

· PT8A263 is a fully integrated mixed-signal CMOS LSI chip designed for low-cost PIR alarm control systems.

· It features an analog front-end based on PTI's proven PIR controller IC (PT8A261).

· The chip is versatile and suitable for applications ranging from household security to portable alarms and toys.

· It includes op-amps for filtering, a comparator, timer, low battery detector, control circuit, voltage regulator, and oscillator.

FEATURES

· Low standby current for energy efficiency.

· 2-stage op-amp for effective filtering.

· On-chip oscillator and voltage regulator.

· 4 operation modes selectable via SEL1 & SEL2.

· Low battery detection and built-in noise rejection circuit.

· LED output for warm-up period, low battery, and PIR trigger signal indication.

· 2 outputs for driving external devices like speech ICs, piezo buzzers, or doorbell ICs.

· Available in lead-free DIP-16 and SOIC-16 packages.

· Suitable for door chime applications with external doorbell ICs.

APPLICATIONS

· Low-cost security system sensor components.

· Motion sensor to drive low-cost speech chips for alarm alerts.

· Motion detect alarm with high-pitch buzzer alerts.