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Thermal Considerations for Discrete CCRs in LED Strings

Authored on: May 1, 2012 by Mike Sweador, David Helzor

Technical Paper / Application Note

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Learn about temperature and power boundaries for Constant Current Regulators (CCRs) in DPAK, SMB and SMC packages for LED strings connected in series and other current-based loads. Use CCRs when a constant current is needed to maintain luminosity under varying voltage conditions. This application note provides thermal information for CCR packages and includes performance data for both FR4 and Thermal (aluminum backed) MCPCB (Metal Clad PCB) material.

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