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2005-08-01
DC PIR CONTROLLER
PIR CONTROLLER
M7615
一華半導體股份有限公司
MOSDESIGN SEMICONDUCTOR CORP.
PIN DESCRIPTION
Pin Name
I/O
Description
Pin No.
VDD
Operation voltage：5V，Stand by current：80~90uA
1
TE
I
TE = 1MΩ
4
VSS
System ground.
5
CDS
I
Connect to a CDS for inhibit , when Vinhi = 0 disable ,Vinhi = 1 enable trigger
6
RTX
I
Delay timer oscillator input
The delay time of receiving PIR signal to trigger Encoder or a high signal to trigger relay.
The range for：RTX=2 KΩ ~ 5 MΩ
CTX=100P~0.01UF
FOR 100P or 0.01uf delay time=45000 R*C
FOR 1000P delay time=35000 R*C
Delay Time：20 ms ~ 2250s
Ex：CTX=100p，RTX=680KΩ，Delay Time=3.1s
CTX=1000p，RTX=100KΩ，Delay Time=3.5s
CTX=0.01uf，RTX=10KΩ，Delay Time=4.5s
7
RTI
I
Latch timer oscillator input
The latch time of the range for：RTI=100 KΩ ~ 1 MΩ
CTI=0.1UF(fix)
Contain Time=35 R*C
Contain time：> 0.5s ~
Ex：CTI=0.1uf，RTI=1MΩ，Contain Time=3.5s
8
UOU2
O
2
nd stage OP amp output.
9
II2
I
2
nd stage OP amp negative input.
10
NII1
I
1
st stage OP amp positive input.
11
II1
I
1
st stage OP amp negative input.
12
RELAY
O
To drive relay，active high.
13
UOU1
I
1
st stage OP amp output.
14
Delay timing and Latch timing oscillator input pin, connect to external RC to obtain desired delay duration.
Variable delay(latch) duration can be obtained by selecting various values of RC or using a variable resistor.
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