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Can a 1206 size resistor be used for the Quick-start circuit (resistors R9 & R10) in a High-Line CY8CLEDAC02 and CY8CLEDAC03 design?

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Can a 1206 size resistor be used for the Quick-start circuit (resistors R9 & R10) in a High-Line CY8CLEDAC02 and CY8CLEDAC03 design?

Anonymous
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‎Jul 21, 2011 06:05 PM
‎Jul 21, 2011 06:05 PM
Question: Can a 1206 size resistor be used for the Quick-start circuit (resistors R9 & R10) in a High-Line CY8CLEDAC02 and CY8CLEDAC03 design?

 

Answer:

Question: Can a 1206 size resistor be used for the Quick-start circuit (resistors R9 & R10) in a High-Line CY8CLEDAC02 and CY8CLEDAC03 design?

  A 1206 resistor is not specified for the momentary power dissipation for R9 or R10 during quick-start. A 1210 resistor is the minimum package size recommended. The attached file works though the equations showing a 1210 resistor is the minimum size for a typical quick-start circuit.

Attachment: High-Line R9 & R10 power.doc

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