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HT7611A Datasheet

  • HT7611A

  • General Purpose PIR Controller

  • 11頁

  • ETC

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HT761X
General Purpose PIR Controller
Features
路
Operating voltage: 5V~12V
路
Standby current: 100mA (Typ.)
路
On-chip regulator
路
Adjustable output duration
路
CDS input
路
40 second warm-up
路
ON/AUTO/OFF selectable by MODE pin
路
Override function
路
Auto-reset if the ZC signal disappears over 3
seconds
路
16-pin DIP package
Applications
路
PIR light controllers
路
Motion detectors
路
Alarm systems
路
Auto door bells
General Description
The HT761X is a CMOS LSI chip designed for use in au-
tomatic PIR lamp control. It can operate with a 2-wire
configuration for triac applications or with a 3-wire con-
figuration for relay applications. The chip is equipped
with operational amplifiers, a comparator, timer, a zero
crossing detector, control circuit, a voltage regulator, a
system oscillator, and an output timing oscillator.
Its PIR sensor detects infrared power variations induced
by the motion of a human body and transforms it to a
voltage variation. If the PIR output voltage variation con-
forms 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.
Selection Table
Part No.
HT7610A
HT7610B
HT7611A
HT7611B
Note:
ZC Off/On
for Override
2 times
1 time
Flash on Mde
Auto-change
Flash
No flash
Override ON
Duration
8 hrs
8 hrs
Comparator
Window
1
(V
DD
-V
EE
)
16
1
(V
DD
-V
EE
)
16
Effective Trigger
Width
>24ms
>24ms
Part numbers suffixed with A are for Relay application while those suffixed with B are for Triac application.
Pin Assignment
V S S
1
2
3
4
5
6
7
8
T R IA C
O S C D
O S C S
Z C
C D S
M O D E
V D D
1 6
1 5
1 4
1 3
1 2
1 1
1 0
9
O P 2 O
O P 2 N
O P 2 P
O P 1 O
O P 1 N
O P 1 P
R S T
V E E
V S S
1
2
3
4
5
6
7
8
R E L A Y
O S C D
O S C S
Z C
C D S
M O D E
V D D
1 6
1 5
1 4
1 3
1 2
1 1
1 0
9
O P 2 O
O P 2 N
O P 2 P
O P 1 O
O P 1 N
O P 1 P
R S T
V E E
H T 7 6 1 X B
1 6 D IP -A
T R IA C V E R S IO N
H T 7 6 1 X A
1 6 D IP -B
R E L A Y V E R S IO N
Rev. 1.10
1
September 18, 2002

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