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参数资料
| 型号： | PT8A261DE |
| 厂商： | PERICOM SEMICONDUCTOR CORP |
| 元件分类： | 模拟信号调理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, UUC18 |
| 封装： | DIE-18 |
| 文件页数： | 11/13页 |
| 文件大小： | 83K |
| 代理商： | PT8A261DE |
Data Sheet
PT8A261/262
PIR Sensor Light Switch Controller
PT0075(04/03)
Ver:5
7
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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 override control to enter the quickly in-
stall mode.After 40s of the initial time the chip allows over-
ride control between ON and AUTO. It will remain in the warm
up period if the total initial time has not elapsed after return-
ing to AUTO.
In case that the ZC signal disappears more than 3 seconds, the
chip will restart the initialization operation. However, the re-
start initial time is always 40 seconds and cannot be extended
by adding C
RST to the RST pin as shown in Figure 6.
Trigger
The trigger timing is shown in Figure 9.
Retrigger -- If another signal is attained in trigger hold time,
the circuit will be retriggered, and the trigger hold time will be
restarted from this time.
Figure 9. Trigger Timing
Comparator
Input
+trigger level
-trigger level
CDS
Output
Enable
5s
RELAY
TRIAC
Test
Enable
Detect
Enable
10s test
enable
ON
(Note2)
pulse out
power on delay time
40s
RST
Comparator
Output
>24ms
<24ms
(Note1)
Notes:
1. The output is activated if the trigger signal conforms to the following criteria:
- More than 3 triggers within 2 seconds,
- A trigger signal sustain duration > 0.34 seconds, and
- 2 triggers within 2 seconds with pulse duration of one > 0.16 seconds.
- The effective comparator output width is 24ms.(Fosc=16KHz)
2. The output duration is set by an external RC connected to the OSCD pin.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| PT8A261P | 制造商:PERICOM 制造商全称:Pericom Semiconductor Corporation 功能描述:PIR Sensor Light Switch Controller |
| PT8A261W | 制造商:PERICOM 制造商全称:Pericom Semiconductor Corporation 功能描述:PIR Sensor Light Switch Controller |
| PT8A262 | 制造商:PERICOM 制造商全称:Pericom Semiconductor Corporation 功能描述:PIR Sensor Light Switch Controller |
| PT8A2620 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:PIR Sensor Light Switch Controller? |
| PT8A2621 | 制造商:PERICOM 制造商全称:Pericom Semiconductor Corporation 功能描述:PIR Sensor Light Switch Controller |
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