CS9803

PIR CONTROLLER

CS9803 GENERAL DESCRIPTION

CS9803 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 users' choice. With special noise

immunity technique, CS9803 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.

CS9803 PIN DESCRIPTION

Pin

No.

Pin

Name

I/O

Description

1

UOU1

First stage OP amp output

2

NII 1

First stage OP amp positive input

3

II 1

First stage OP amp negative input

4

VREF

Stable reference voltage

5

GND

System ground

6

TB

Time base for 1. The delay time of receiving PIR singnal to sent a puls to trigger

TRIAC or a high signal to trigger relay. The delay time = R x C x 32. The PIR signal

patented and accepted only if the signal cycle greater than R x C x 768 .When state

of relay or TRIAC is changing form active into inactive mode. It takes more than R x C

x 4069, then system is able to receive PIR signal again. 2.The flash cycle show the

beginning of auto mode. Note: Width of TRIAC pulse = R x C x 2. Flash cycle: R x C x

32768 10 K < R < 1M Ohm 100pF < C < 0.1 Uf (Reference Diagram 1)

7

QTEST

For testing only

8

TCI

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 range

for R: 10K < R < 1M Ohm

C: 100uF< C < 0.1 uF

(Reference Diagram

2)

9

CDS

Connected to a CDS for inhibiting relay or TRIAC being triggered. If TRIAC or relay

has already being triggered by PIR signal and turned into active mode, then CDS can

not inhibit PIR again.

10

TRIAC

To trigger TRIAC, active low Sink current: 15 mA max.

11

RELAY

To drive relay, active high Sink current: 10 mA max. Source current: 10 mA max.

12

ZCD

Detect zero cross of AC line under remote mode function.

13

VDD

Operation voltage: 5V, stand by current: 1mA

14

II2

Silvan Chip Electronics Tech.Co.,Ltd.

Address: Fl.16 FuChang Building,Binhe Rd,Shenzhen,China

Phone:

86-0755-88291843

88304213

Fax ： 86-0755-88290509

Email:

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