QY3081A/B

• Product introduction

Push multiple LED light application diagrams

• SCR uses unidirectional thyristors, such as: 100-6, 100-8, PCR406... and other small unidirectional thyristors
• S0 and S1 are the pattern selection ends. S0, S1 suspended as a combination segment (both included, all 4 functions are available)
• The 100K resistor between ZC and VSS can also be selected according to the effect with a small capacitor with a 50V ceramic chip, such as a 152P capacitor. The element is anti-interference after the power failure interval should be more than 5 seconds, can not be turned on and off, must ensure that there is a 5 second time interval to synchronize
• The application diagram is for reference only

Push multiple LED lights application Figure 2

• S0 and S1 are the pattern selection ends
• The transistor is selected from the NPN model (It is recommended to use high-voltage transistors A42, A44)
• A42 N 300V0.5A0.625W
• A44 N 500V0.3A0.625W
• 8050 N  40V 1.5A1W 100MHz　
• 8550 P  40V  1.5A1W 100MHz
• 4.7K needs to be adjusted according to the actual application
• 104C as close as possible to VDD and VSS
• The 100K resistor between ZC and VSS can also be selected with a 152P capacitor, according to the effect;
• After the power failure, the power-on interval should be more than 5 seconds, can not be turned on and off, must ensure that there is a 5-second time interval to synchronize;
• The application diagram is for reference only

Push multiple LED lights to apply Figure 3

• S0 and S1 are the selection ends of patterns;
• The transistor adopts NPN model; (It is recommended to use high-voltage transistors A42, A44)
• If NPN is replaced with SCR unidirectional thyristor, the 15K resistor is changed to 47K;
• The 104 capacitors of the second and sixth pins of the IC are as close as possible to VDD and VSS;
• QY3081A/B circuit diagram is exactly the same;
• After the power failure, the power-on interval should be more than 5 seconds, can not be turned on and off, must ensure that there is a 5-second time interval to synchronize;
• The application diagram is for reference only.
• R1, R2, R3 are adjusted according to actual requirements

You can also refer to the following figure: