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| CDT3447 Datasheet, PDF (1/4 Pages) BOWIN ELECTRONIC CO. – 3 LED 漸明漸暗輸出控制IC | |||
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å
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Chip Design Technology
Inc.
93 å¹´ 04 æ 08 æ¥
CDT3447
P. 1
3 LED 漸æ漸æ輸åºæ§å¶ IC
â 使ç¨èªªæ
â ç¹ æ§
CDT3447 æ¯ä»¥å¯ç¨å¼åè¨è¨æ¹å¼æ¹è® LED é
åè®åçå°ç¨ ICã
IC å
±æ 4 å LED 輸åºç«¯ï¼
1ï¹ 3 å LED 輸åºï¼ä»¥ä¸åè§åº¦æ¼¸æ漸æçåè½ï¼
2ï¹ 1 å LED å·¥ä½ææ亮èã
LED éåçæ¹å¼å¯ä»¥ç´æ¥ç¨å¼åå¨ IC å
§é¨,å¦
æ¤å¯ä»¥è¨å® LED å種éåçæ¹å¼è¼¸åºã
ä¿®æ¹å
罩å¯ä»¥ï¼A. éåæ¹å¼
B. 輸åºæ¹å¼
C. å¯å
§å®é »ç
CMOS 製é æè¡
å·¥ä½é»å£ç¯å: 1.80 ~ 5.00VDC
LED 輸åºé»æµ > 20mA (@VDD=3V)
3 å LED è¼¸åº - 輸åºæ¹å¼: è² è¼¸åº
1 LED å·¥ä½ææ亮 -è² è¼¸åº
å
§å®æ¯çªé»é» â å
§å®éåé度
POWER ON = OFF
æ 3 ååè½éµ
1ï¹ON/OFF
2ï¹LOCK/PLAY
3ï¹ONE SHOT
â æç¨ç·è·¯
3VDC
OSCO
VDD
Rosc
å
§å®æ¯çªé»é»
æ¥ Rosc å¯å å¿«
OSCI
TEST
CDT3447
1590 x1960um R
IC åºåº§æ¥ VDD
ON/OFF
G
K1
LOCK/PLAY
B
K2
ONE SHOT
K3
LED
VSS
R1 R2 R3 R4
æ亮
â 使ç¨åè½èªªæ:
1ï¹Power on â OFF,
2ï¹K1 â ON/OFF, æä¸æ¬¡ K1 æï¼LED åä½ï¼åæä¸æ¬¡ K1ï¼LED åæ¢åä½ã
3ï¹K2 â LOCK/PLAY, å¨ LED åä½ä¸ï¼æä¸ä¸ K1 æï¼åæ«å(亮度èè²å½©åç¶æç®å
çæ
)ï¼åæä¸ä¸ K1 æï¼ååç¹¼çºåä½ã
4ï¹K3 â ONE SHOT, æä¸æ¬¡ LED åä½ 1 å Cycle å¾åæ¢ï¼LED åä½ä¸æ K3 ç¡æ
CDT-3447 --- 1
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