pt8a2621w Pericom Technology Inc, pt8a2621w Datasheet

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pt8a2621w

Manufacturer Part Number
pt8a2621w
Description
Pir Sensor Light Switch Controller
Manufacturer
Pericom Technology Inc
Datasheet

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Company
Part Number
Manufacturer
Quantity
Price
Part Number:
PT8A2621W
Manufacturer:
PTC
Quantity:
946
PT0091(11/03)
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Features
• Built-in noise rejection circuit
• On-chip regulator
• Override function (PT8A2621 only)
• Synchronous with AC 220V/50Hz and 110V/60Hz
• Pulse output (PT8A2611) 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 seconds
• 40 seconds warm-up
• Quick check mode for initial installation
• Operating voltage: 5V
• Stand-by current: 80礎
• Package:16-pin DIP and 16-pin SOP
Applications
• Energy saving auto-switch in Garden, kitchen,
• Auto light in meeting room
Block Diagram
2-stage operational amplifier as filter
level output (PT8A2621) for relay drive
bathroom, corridor, storage or yard
OP2O
OP2N
OP1O
OP1N
OSCD
OSCS
OP2P
OP1P
V
EE
_
+
+
_
Comparator
Regulator
oscillator
oscillator
Voltage
System
divider
delay
latch circuit
1
Counter
Control
circuit
circuit
circuit
Delay
General Description
The PT8A2611 and PT8A2621 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.
Function Comparison
Ordering Information
PT8A2611
PT8A2621
PT8A2611DE / PT8A2621DE
(Internal CDS
feedback,
for 2611 only)
PT8A2611W / PT8A2621W
PT8A2611P / PT8A2621P
PIR Sensor Light Switch Controller
Part Number
Mode and CDS
control circuit
Override
No function
Twice
Output circuit
Zero cross
debounce
CDS feedback
Internal
With external
components
(see Fig. 10,
D9 and R15)
PT8A2611/2621
MODE
CDS
RST
ZC
RELAY
(for 2621 only)
TRIAC
(for 2611 only)
16 - Pin PDIP
16 - Pin SOP
Data Sheet
Die Form
Package
Output
TRIAC
RELAY
Ver:3

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pt8a2621w Summary of contents

Page 1

... 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. Function Comparison PT8A2611 PT8A2621 Ordering Information PT8A2611P / PT8A2621P PT8A2611W / PT8A2621W PT8A2611DE / PT8A2621DE Comparator latch circuit (Internal CDS feedback, Voltage for 2611 only) divider ...

Page 2

Pad Location Pad Location of PT8A2611DE 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 PT0091(11/03) ...

Page 3

Pad Location of PT8A2621DE Die No. Pad Name X Coordinate GND 570 RELAY 570 OSCD 570 OSCS 570 ZC -378.8 CDS -30.1 MODE 570 V -197 136.9 CC Note: Substrate is connected to GND PT0091(11/03) PIR Sensor ...

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 PT8A2611/2621 PIR Sensor Light Switch Controller PT8A2621P/PT8A2621W GND 1 16 OP2O 2 15 OP2N 3 ...

Page 5

Functional Descriptions The PT8A2611 and PT8A2621 are CMOS LSI chips designed for automatic PIR lamp control. They can operate in 2-wire configuration for triac applications or in 3-wire configuration for relay applications. The PIR sensor detects infrared power variations ...

Page 6

MODE MODE is a tri-state input pin for operation mode selection. See the following table 2. Override Control (for PT8A2621 only): The term override re- fers to the change of operating mode by switching the power switch twice within ...

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 40 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 V oltage to Ground Potential (Inputs & V Supply V oltage to Ground Potential (Outputs & D/O Only) -0.3 to ...

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 9. Two-Wire Application Circuit of PT8A2611 PT0091(11/03) PIR Sensor Light Switch Controller 11 Data Sheet PT8A2611/2621 Ver:3 ...

Page 12

Figure 10. Three-Wire Application Circuit of PT8A2621 PT0091(11/03) PIR Sensor Light Switch Controller ON AUTO OFF 12 Data Sheet PT8A2611/2621 Ver:3 ...

Page 13

... Bering Drive, San Jose, California 95131, USA Tel: (1)-408-435 0800 Pericom Technology Incorporation reserves the right to make changes to its products or specifications at any time, without notice, in order to improve design or performance and to supply the best possible product. Pericom Technology does not assume any responsibility for use of any circuitry described other than the circuitry embodied in Pericom Technology product ...

Page 14

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