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HT761X PDF预览

HT761X

更新时间: 2024-11-07 22:48:27
品牌 Logo 应用领域
台湾合泰/盛群 - HOLTEK 控制器
页数 文件大小 规格书
12页 689K
描述
General Purpose PIR Controller

HT761X 数据手册

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HT761X  
General Purpose PIR Controller  
Features  
Stand-by current: 100µA (Typ.)  
Override function  
On-chip regulator  
Adjustable output duration  
CDS input  
40 second warm-up  
ON/AUTO/OFF selectable by MODE pin  
Auto-reset if the ZC signal disappears over  
3 seconds  
Operating voltage: 5V~12V  
16 pin DIP or SOP packaging  
Applications  
PIR light controllers  
Motion detectors  
Alarm systems  
Auto door bells  
General Description  
The HT761X is a CMOS LSI chip designed for  
use in automatic PIR lamp control. It can oper-  
ate with a 2-wire configuration for triac applica-  
tions or with a 3-wire configuration for relay  
applications. The chip is equipped with opera-  
tional amplifiers, a comparator, timer, a zero  
crossing detector, control circuit, a voltage regu-  
lator, a system oscillator, and an output timing  
oscillator.  
PIR output voltage variation conforms to the  
criteria (refer to the functional description), the  
lamp is turned on with an adjustable duration.  
The HT761X offers three operating modes (ON,  
AUTO, OFF) which can be set through the  
MODE pin. While the chip is working in the  
AUTO mode the user can override it and switch  
to the TEST mode, or manual ON mode, or  
return to the AUTO mode by switching the  
power switch. The chip is enclosed in a 16 pin  
DIP/SOP.  
Its PIR sensor detects infrared power vari-  
ations induced by the motion of a human body  
and transforms it to a voltage variation. If the  
Selection Table  
F la sh on  
m od e a u to-  
ch a n ge  
ZC off/on for  
Over r id e ON Com p a r a tor  
Effective  
tr igger w id th  
P a r t Nu m ber  
over r id e  
2 times  
1 time  
d u r a tion  
w in d ow  
1
16  
(VDD-VEE  
)
)
HT7610  
HT7611  
Flash  
8 hrs  
>24ms  
>24ms  
1
16  
(VDD-VEE  
No flash  
8 hrs  
1
24th Mar 97  

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