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SC2128C-L44S Datasheet(PDF) 6 Page - Silan Microelectronics Joint-stock |
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SC2128C-L44S Datasheet(HTML) 6 Page - Silan Microelectronics Joint-stock |
6 / 13 page Silan Semiconductors SC2128C HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD Rev: 1.1 2001.09.26 6 5. SW1 KEY SW1 controls the output status of SO1 and SO2 outputs which in turn control the head swing of fan. Each pressing of SW1 key toggles SO1 and SO2 outputs as shown in the diagram right. SO1=Z SO2=Z SO1=L SO2=Z SO1=Z SO2=L SO1=L SO2=L SW 1 K EY SW 1 KE Y SW 1 K EY SW 1 KE Y Fan already ON Z=high impedence L=low voltage 6. LIGHT KEY LIGHT key toggles LIT output on(L) and off(Z). LIT output can only be controlled with LIGHT key (from both panel and remote control) and SLEEP key (if available) on remote control handset. OFF key does NOT affect LIT output. LIT output is NOT affected by OFF key as well as off-timer times out. 7. OFF/BUZZ KEY OFF/BUZZ key functions differently depending on whether the fan is ON or OFF. It functions as OFF key when the fan is ON, and is used to bring SC2128C from any on state into off state. LIT output is NOT affected by OFF key. 8. INDICATOR LEDS Up to twelve(13) indicator LEDs may be constructed on the control panel of fan built with SC2128C. Six(6) LED sare constructed as 3x2 LED matrix formed by COM and LED1, LED2, LED3. The other six(6) LEDs are built in series with TRIAC outputs and the thirteenth LED is used as Ordinary Wind mode indicator. The diagrams show how the LED matrix is constructed. V DD COM LED3 LED2 LED1 V SS -5V Tb2 Tb3 Tb0 Tb1 Sleep Rhythm SC2128C LO MI ST SO1 SO2 LIT SC2128C low middle strong Swing 1 Swing 2 light LORD ORD |
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