CS9803 ETC2

Document overview

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Technical content

Features

z Operating voltage: 4.5V～5.5V (DC) z Operating current≤1mA z CDS input z Pulse output for TRIAC drive or level output for relay drive z Built-in 2-stage operational amplifier z Adjustable output on time duration z On –chip regulator for PIR sensor z Zero-crossing triggering z Application: Home security system Auto light system for garden, garage, hallway, staircase, porch, bathroom, etc. Auto switch for ventilation fan Auto notice system for office, storage, etc. z Package: DIP16 Absolute Maximum Ratings Pin Description No. Pin Name I/O Function Description

1 UOU1 O First stage OP amp output

2 NII1 I First stage OP amp positive input

3 II1 I First stage OP amp negative input

4 VREF O Stable reference voltage

5 GND P System ground

6 TB I System clock

7 QTEST I Test only

8 TCI I To set up the timing of how long Triac or relay is active

9 CDS I Detect CDS

10 TRIAC O TRIAC output

11 RELAY O RELAY output

12 ZCD I Detect zero cross

13 VDD P Power ground

14 II2 I Second stage OP amp negative input

15 NII2 I Second stage OP amp positive input

16 UOU2 O Second stage OP amp output

Electrical Characteristics （Ta=25℃，VDD=5.0V，VSS=0V） Symbol Characteristic Test Condition Min. Typ. Max. Unit VDD Supply voltage --- 4.5 5 5.5 V IOP Operating current no load --- --- 1 mA VREF Stable voltage V OH=3.3V 2.8 3.1 3.3 V IREF Source current of V REF 200 --- --- µA Avo Op amp pen loop gain --- 60 --- dB IOL1 TRIAC sink current --- --- 15 mA IOH1 TRIAC source current 50 --- --- µA IOL2 RELAY sink current --- --- 5 mA IOH2 RELAY source current --- --- 5 mA Application Circuit 1、 TRIAC Application CDS 4.7k RES2 0.01uF 100p 47K 0.01uF 470k 1M 330 5.1V FUSE1 100k 0.01u/250V 1220k 330k 15k PIR

9 CDS

7 QTEST

4 VREF

2 NII1

8 TCI

-220uF 100k BT136 600E 2、 RELAY Application CDS 4.7k RES2 3.3--10nF 100p 47k 10nF 1220k 330k 15k PIR II1 UOU1 NII2 II2 UOU2 GND TRIAC VDDZCD -220uF 20V/1W 5.1V 100uF 2.4k 470uF RELAY 5.6k 47k 0.47uF 100 0.047uF FUSE1 100k