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TPS92381: TI solution suggestion

Jimmy Lai
Expert 6845 points
Part Number: TPS92381
Other Parts Discussed in Thread: TPS61177, TPS61196, TPS92391

Dear Team,

Do we have any suitable solution can meet below backlight led spec?

Many Thanks,

Jimmy

  • 0
    TI__Genius 9630 points

    hi Jimmy

        first of all, we do not have device supporting up to 15 channels. Now we can have two possible solutions:

    1. rearrange configuration of LED by decreasing channels and increase total forward voltage. If this is accepted by customer, then we have TPS61177 or TPS61196 for 9s5p

    2. take 3 strings as a set, total 5 sets. each string in the same set share anode and cathode, the common cathode will be connected to one channel of the device, then we just need a six-channel device. In this way, TPS92391 or TPS61196 can be options. But obviously, the brightness uniformity is not as well as first solution.