參數(shù)資料
型號(hào)： PT8A2612W
廠(chǎng)商： Pericom Semiconductor Corp.
英文描述： PIR Sensor Light Switch Controller
中文描述： 紅外感應(yīng)燈開(kāi)關(guān)控制器
文件頁(yè)數(shù)： 6/13頁(yè)
文件大?。?/td> 105K
代理商： PT8A2612W
Data Sheet
PT8A261/262
PIR Sensor Light Switch Controller
PT0075(04/03)
Ver:5
6
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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 chip is working in the AUTO mode (MODE
pin openned), the output is activated by a valid PIR trigger
signal and the output active duration is controlled by the OSCD
oscillation period. The lamp can be switched to ON from the
AUTO mode by either switching the MODE pin to V
or
switching the power switch twice within 3 seconds. The de-
vice can be toggled from ON to AUTO by switching the power
switch twice within 3 seconds again (override operation).
If the chip is overridden to ON and there is no further override
operation, it will return to AUTO automatically after an inter-
nal preset ON time duration (8 hours).
The override operation will cause the lamp flash (for TRIAC
version only). It will flash 3 times at 1Hz rate when changing
AUTO mode to other mode, and flash 3 times at 2Hz rate when
returning to AUTO mode. But no flash if mode is changed by
switching the MODE switch. See Figure 7 for override timing.
MODE
Status
Operation
Mode
Description
V
CC
ON
Output is always ON: RELAY pin sends high level for relay driving; TRIAC pulse train output is
synchronized by ZC for triac driving.
GND
OFF
Output is always OFF: RELAY pin sends low level for relay driving; TRIAC pin sends high level
for triac driving.
Open
AUTO
Outputs remain in the OFF state until activated by a valid PIR trigger input signal. When working
in the AUTO mode, the device allows override control by switching the ZC signal.
Table 3. Operation Modes by MODE Pin
Figure 7. Override Timing
ZC
Operating Mode
AUTO
AUTO
AUTO
ON
flash
flash
flash
flash
ON
8 hours
Flash is only for TRIAC version
RST Pin
RST is used to reset the device. It is internal pull-high and
active low. The use of C
can extend the power-on initial
time. If the RST pin is openned (without CRST), the initial
time is 40 seconds. See Figure 8.
V
CC
GND
REST
RST
C
RST
Figure 8. RST Application Example
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PT8A261DE 制造商:PERICOM 制造商全稱(chēng):Pericom Semiconductor Corporation 功能描述:PIR Sensor Light Switch Controller
PT8A261P 制造商:PERICOM 制造商全稱(chēng):Pericom Semiconductor Corporation 功能描述:PIR Sensor Light Switch Controller
PT8A261W 制造商:PERICOM 制造商全稱(chēng):Pericom Semiconductor Corporation 功能描述:PIR Sensor Light Switch Controller
PT8A262 制造商:PERICOM 制造商全稱(chēng):Pericom Semiconductor Corporation 功能描述:PIR Sensor Light Switch Controller
PT8A2620 制造商:未知廠(chǎng)家 制造商全稱(chēng):未知廠(chǎng)家 功能描述:PIR Sensor Light Switch Controller?
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