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There are many aspects that one should take in consideration when designing a multi-string LED system. In particular, the number of LED strings that are needed, the LED current, what the dimming options are, what kind of protection and diagnostics are needed, and what the power source is (e.g., a 12V or AC/DC supply). The answers to these considerations will affect the choice of LED driver IC.
PTM Published on: 2011-12-21