PT8A261WEX

PT8A261WEX Datasheet


PT8A261/262 PIR Sensor Light Switch Controller

Part Datasheet
PT8A261WEX PT8A261WEX PT8A261WEX (pdf)
Related Parts Information
PT8A261PE PT8A261PE PT8A261PE
PT8A261PEX PT8A261PEX PT8A261PEX
PT8A262WEX PT8A262WEX PT8A262WEX
PT8A262WE PT8A262WE PT8A262WE
PT8A261WE PT8A261WE PT8A261WE
PT8A262PE PT8A262PE PT8A262PE
PDF Datasheet Preview
PT8A261/262 PIR Sensor Light Switch Controller
• 2-stage operational amplifier as filter
• Built-in noise rejection circuit
• On-chip regulator
• Override function
• Synchronous with AC 220V/50Hz and 110V/60Hz
• Pulse output PT8A261 for TRIAC drive or
level output PT8A262 for relay drive
• CDS to enable/disable output
• Adjustable output on time duration
• ON/AUTO/OFF selectable by MODE pin
• Auto-reset if the ZC signal disappears over 3
seconds
• 40 seconds warm-up
• Quick check mode for initial installation
• Operating voltage 5V
• Stand-by current 80µA

Block Diagram

The PT8A261 and PT8A262 are low power mixed signal CMOS LSI designed for the automatic lamp control using PIR sensor as motion detector.

With on chip noise filter and voltage regulator, the IC provides stable operations throughout temperature range. CDS input to disable day time operation is desired.
• Energy saving auto-switch in Garden, kitchen, bathroom, corridor, storage or yard
• Auto light in meeting room
Ordering Information

Pa ck a ge

PT8A261PE/PT8A262PE Lead free 16 - Pin PDIP

PT8A261WE/PT8A262WE

Lead free and Green 16 - Pin SOIC

PT8A261DE / PT8A262DE

Die Form

Note Adding X suffix=Tape/Reel

OP2O

OP2N

OP2P

OP1O

OP1P
_ OP1N

OSCD

OSCS

Comparator latch circuit

Voltage divider

Regulator

Control circuit

Mode and CDS control circuit

Output circuit

MODE CDS

RELAY for 262 only TRIAC for 261 only
delay oscillator

System oscillator

Delay circuit

Counter circuit

Zero cross debounce
12-07-0007

PT0075-5 07/06/2012

Pad Location

Pad Location of PT8A261DE

Die No.

PT8A261/262 PIR Sensor Light Switch Controller
1470um

CDS ZC OSCS

OSCD

MODE VCC NC

VEE RST

TRIAC GND OP2O OP2N OP2P OPIP OPIN OPIO
More datasheets: F0441A | F0442A | F0444A | F0443A | FDS3601 | PT8A261PE | PT8A261PEX | PT8A262WEX | PT8A262WE | PT8A261WE


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Datasheet ID: PT8A261WEX 510143