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PDF HT7610 Data sheet ( Hoja de datos )
| Número de pieza | HT7610 | |
| Descripción | General Purpose PIR Controller | |
| Fabricantes | Holtek Semiconductor Inc | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de HT7610 (archivo pdf) en la parte inferior de esta página. Total 12 Páginas | ||
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HT761X
General Purpose PIR Controller
Features
• Stand-by current: 100µA (Typ.)
• On-chip regulator
• Adjustable output duration
• CDS input
• 40 second warm-up
• ON/AUTO/OFF selectable by MODE pin
• Override function
• 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.
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
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.
Selection Table
Part Number
ZC off/on for
override
HT7610
2 times
HT7611
1 time
Flash on
mode auto-
change
Flash
No flash
Override ON Comparator Effective
duration
window trigger width
8 hrs
8 hrs
1
16
(VDD-VEE)
1
16
(VDD-VEE)
>24ms
>24ms
1 24th Mar ’97
1 page  
Trigger Timing
HT761X
Note: 1. The output is activated if the trigger signal conforms to the following criteria:
• More then 3 triggers within 2 seconds.
• A trigger signal sustain duration ≥ 0.34 secs.
• 2 trigger signals within 2 secs with one of the trigger signal sustain ≥ 0.16 secs.
2. The effective comparator output width can be selected to be 24ms or 32ms or
48ms by mask option. The default is 24ms (system frequency=16KHz).
3. The output duration is set by an external RC that is connected to the OSCD pin.
5 24th Mar ’97
5 Page 
Application Circuit
HT761XA relay application
HT761X
Note: 1. Adjust R13 to fit various CDS.
2. Change C6 to obtain the desired adjusting range of output duration.
3. Change the value of C11 to 0.33µF/600V for AC 220V application.
11 24th Mar ’97
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet HT7610.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| HT7610 | General Purpose PIR Controller | Holtek Semiconductor Inc |
| HT7610A | General Purpose PIR Controller |  Holtek Semiconductor |
| HT7610B | General Purpose PIR Controller | Holtek Semiconductor |
| HT7611 | General Purpose PIR Controller | Holtek Semiconductor Inc |
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