PIR Controller. M7612 Datasheet

M7612 Controller. Datasheet pdf. Equivalent

M7612 Datasheet
Recommendation M7612 Datasheet
Part M7612
Description PIR Controller
Feature M7612; MOSDESIGN SEMICONDUCTOR CORP. PIR CONTROLLER M7612 PIR CONTROLLER GENERAL DESCRIPTION The M7612 .
Manufacture Mosdesign
Datasheet
Download M7612 Datasheet




Mosdesign M7612
一華半導體股份有限公司
MOSDESIGN SEMICONDUCTOR CORP.
PIR CONTROLLER
PIR CONTROLLER
M7612
GENERAL DESCRIPTION 功能叙述
The M7612 is a PIR ( passive infra-red ) controller , using analog mixing digital design technique and manufactures by CMOS
Process which can either drive TRIAC or RELAY depending on user’s choice. With special noise immunity technique , M7612
is the most stable PIR controller you can find on the market. More than this , there are few components needed in its application
circuit which can reduce material cost and increase competitive.
FEATURES 产品特长
High noise immunity.
Drive either RELAY or TRIAC.
Adjustable light on duration.
TRIAC can be either shunt or serial connected.
PIR input.
CDS input.
Auto change on / auto mode by bonding option.
16 pin DIP or SOP package.
APPLICATIONS 产品应用
PIR light controller, Motion Detector, Alarm system, Auto-door bell.
PIN ASSIGNMENT
M7612P
UOU1 1
NII1
II1
VREF
VSS
TB
QTEST
TCI 8
16 UOU2
NII2
II2
VDD
ZCD
RELAY
TRIAC
9 CDS
1/9 2003-12-02



Mosdesign M7612
一華半導體股份有限公司
MOSDESIGN SEMICONDUCTOR CORP.
PIR CONTROLLER
PIR CONTROLLER
M7612
PIN DESCRIPTION
Pin No
1
2
3
4
5
6
Pin Name
Description
UOU1 First stage OP amp output.
NII1 First stage OP amp positive input.
II1 First stage OP amp negative input.
VREF Stable reference voltage.
VSS System ground.
Time base for
The delay time of receiving PIR signal to sent a pulse to trigger TRIAC or a high signal to trigger relay.
The delay time = R * C * 32.
TB The PIR signal patented and accepted only if the signal cycle greater than R * C * 768. When state of
RELAY or TRIAC is changing form active into inactive mode. It takes more than R * C * 4069 , then
system is able to receive PIR signal again.
10K < R < 1M Ohm
100p F C < 0.1uf ( Reference Diagram 1 )
7 QTEST For testing only.
To set up the timing of how long TRIAC or RELAY is active.
During the period , if the system receives the PIR signal , then it restarts counting the timing again.
The flash cycle show the beginning of auto mode.
8 TCI Notewidth of TRIAC pulse = R * C * 2
Flash cycleR * C * 32768
The range for R4.7K R < 1M Ohm
C100pF < C < 0.1uF ( Reference Diagram 2 )
Connected to a CDS for inhibiting RELAY or TRIAC being triggered.
9 CDS If TRIAC or RELAY has already being triggered by PIR signal and turned into active mode , then CDS
can not inhibit PIR again.
To trigger TRIAC , active low.
10 TRAIC
Sink current15 mA max.
To drive relay , active hign.
11 RELAY Sink current10 mA max.
Source current10 mA max.
12 ZCD Detect zero cross of AC line under remote mode function.
13 VDD Operation voltage5V , stand by current0.5 mA
14 II2 2 nd stage OP amp negative input.
15 NII2 2 nd stage OP amp positive input.
16 UOU2 2 nd stage OP amp output.
2/9 2003-12-02



Mosdesign M7612
一華半導體股份有限公司
MOSDESIGN SEMICONDUCTOR CORP.
DIAGRAM 1
VDD
R
C
PIR CONTROLLER
OSCII
DIAGRAM 2
QTEST
VDD
R
C
OSCII
DIVIDER
QTEST
PIR CONTROLLER
M7612
TIMING RELATIONSHIP
Signal on UOU2 Pin
( TB = 16KHz )
Window detector output
Pulse width detector output
RELAY Pin
TRIAC Pin
< 220ms
> 220ms > 220ms < 220ms
220ms
> 220ms
1.95V
1.25V
Delay time
ZCD Pin
3/9 2003-12-02







@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site (Privacy Policy & Contact)