PT8A262P Pericom Semiconductor, PT8A262P Datasheet

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PT8A262P

Manufacturer Part Number
PT8A262P
Description
Manufacturer
Pericom Semiconductor
Datasheet
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Features
• 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
• 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
• 40 seconds warm-up
• Quick check mode for initial installation
• Operating voltage: 5V
• Stand-by current: 80µA
Block Diagram
Figure 1
2-stage operational amplifier as filter
level output (PT8A262) for relay drive
seconds
OP2O
OP2N
OP1O
OP1N
OSCD
OSCS
OP2P
OP1P
V
EE
_
+
+
_
Comparator
Regulator
oscillator
oscillator
Voltage
System
divider
delay
latch circuit
Counter
Control
circuit
circuit
circuit
Delay
• Package:16-pin DIP (261P/262P) and 16-pin SOP
General Description
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.
Applications
• Energy saving auto-switch in Garden, kitchen,
• Auto light in meeting room
(261W/262W)
bathroom, corridor, storage or yard
PIR Sensor Light Switch Controller
Mode and CDS
control circuit
Output circuit
PT8A261P/261W/262P/262W
Zero cross
debounce
MODE
CDS
TRIAC
(for 261 only)
RST
ZC
RELAY
(for 262 only)

Related parts for PT8A262P

PT8A262P Summary of contents

Page 1

Features 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 ...

Page 2

Pad Location Pad Location of PT8A261DE Die No. Pad Name X Coordinate GND 570 TRIAC 570 OSCD 570 OSCS 570 ZC -378.8 CDS -30.1 MODE 570 V -197 136.9 CC Note: Substrate is connected to GND PT0075(04/03) ...

Page 3

Pad Location of PT8A262DE Die No. Pad Name X Coordinate GND RELAY OSCD OSCS ZC -378.8 CDS -30.1 MODE V -197 136.9 CC Note: Substrate is connected to GND PT0075(04/03) 1470um CDS ZC OSCS MODE V CC ...

Page 4

... Non-inverted input of first operational amplifier, connected directly to source of PIR sensor Inverted input of first operational amplifier Output of first operational amplifier Non-inverted input of second operational amplifier. Inverted input of second operational amplifier Output of second operational amplifier 4 PT8A261/262 PIR Sensor Light Switch Controller PT8A262P/PT8A262W GND 1 16 OP2O 2 15 OP2N 3 ...

Page 5

Functional Descriptions The PT8A261 and PT8A262 are CMOS LSI chips designed for automatic PIR lamp control. They can operate in 2-wire con- figuration for triac applications or in 3-wire configuration for relay applications. The device consists of operational amplifiers, ...

Page 6

MODE MODE is a tri-state input pin for operation mode selection. See the following table 3. Override Control: The term “override” refers to the change of operating mode by switching the power switch twice within 3 seconds. When the ...

Page 7

Power On Initial The PIR signal amplifier requires a warm up period after power- on. The input should be disabled during this period. In the AUTO mode within the first 10 seconds of the initial time the chip allows ...

Page 8

Maximum Ratings (Above which the useful life may be impaired. For user guidelines, not tested) Storage Temperature ............................................................-40 Supply Voltage to Ground Potential (Inputs & V Supply Voltage to Ground Potential (Outputs & D/O Only) -0.3 to +6.0V DC ...

Page 9

AC Electrical Characteristics Voltage Regulator Sym Description V Output Voltage EE V Noninverting input of OP2 OP2P V Line Regulation V Load Regulation LDR I Regulator Output Current L Operational Amplifier and Window Comparator Sym Description BW 3dB Bandwidth ...

Page 10

Oscillator and ZC Input Pulse and Trigger Output Pulse Sym Description f Oscillator Frequency OSC t ZC Pulse Rise Time Pulse Fall Time Pulse Period Pulse Width ZW t TRIAC ...

Page 11

Typical Application Circuits Figure 11. Two-Wire Application Circuit of PT8A261 PT0075(04/03) PIR Sensor Light Switch Controller 11 Data Sheet PT8A261/262 Ver:5 ...

Page 12

Figure 12. Three-Wire Application Circuit of PT8A262 PT0075(04/03) PIR Sensor Light Switch Controller ON AUTO OFF 12 Data Sheet PT8A261/262 Ver:5 ...

Page 13

Email: support@pti.com.cn China: No. 20 Building, 3/F, 481 Guiping Road, Shanghai, 200233, China Tel: (86)-21-6485 0576 Asia Pacific: Unit 1517, 15/F, Chevalier Commercial Centre, 8 Wang Hoi Rd, Kowloon Bay, Hongkong Tel: (852)-2243 3660 U.S.A.: 2380 Bering Drive, San ...

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