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TPS92515-Q1: SCH review

Amelie Zheng
Genius 10865 points
Part Number: TPS92515-Q1
Other Parts Discussed in Thread: TPS92515

Hi Team,

could you please help to review SCH of TPS92515-Q1？

TPS92515-Q1.pdf

  • 0
    TI__Mastermind 28655 points

    Hello Amelie,

    The schematic for the TPS92515 looks good.  The current will be about 2.2A at the LEDs if LED_EN stays high.  The duty cycle will be high so the TPS92515 should have good heatsinking.  The switching frequency calculates to 168 KHz but will be lower due to RCS drop as well as other voltage drops since there is only 2V of headroom.  They may want to consider the TPS92515A depending on what is important.  The TPS92515 has turn on calibration for more accurate current setpoint however it can change on power cycles if it is close to a threshold.  The TPS92515A does not have the auto calibration so setpoint accuracy will be a little lower but it cannot change on power cycling.

    Best Regards,