PT8A2645 Datasheet (PIR Sensor Light Switch)

Part: PT8A2645
Manufacturer: Pericom Semiconductor
Size: 357.16 KB

PT8A2645 Key Features

Operating voltage: 5V (Typ.)
Average supply current: 120µA (Typ.)
2 stage op-amp for filter
Build-in noise rejection circuit
On-chip regulator
Adjustable output duration
Override function
ON/AUTO/OFF selectable by MODE pin
Apply to AC 220V/50Hz and 110V/60Hz
Auto-reset if the ZC signal disappears over 3

PT8A2645 Description

The PT8A264X is a CMOS LSI chip designed for use in automatic PIR lamp control. It can operate with a 2-wire configuration for triac applications or with a 3-wire configuration for relay applications. The chip is equipped with operational amplifiers, a parator, timer, a zero crossing detector, control circuit, a voltage regulator, a system oscillator, and an output timing oscillator.