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TAS5805M: TAS5805M-temperature protected

switch
Genius 3760 points
Part Number: TAS5805M
Other Parts Discussed in Thread: TAS5805

Hi Ti Team，

My customer uses TAS5805M for stereo 2.0. When the power reaches 12W, it will be temperature protected in a few seconds. Can you help me see the reason? Schematic diagram and Layout below 。

PVDD=15V  RL=4Ω

TAS5805 schematic

Layout

AV-MPEG-27G-V0.2-Final_20210811.pcb

PPC3 readout temperature protection

  • 0
    TI__Intellectual 2430 points

    Hi Switch,

              There are ways to improve thermal performance:

               1. Try to use lower switching frequency and bandwidth

               2. Improve layout as datasheet recommends.

               3. Use larger inductor

               4. Use 1SPW modulation

    Leon