Strl472 is a power switch control chip, which does not output power itself, but controls the power switch by controlling an external switch tube. Therefore, if the Strl472 controlled switch tube cannot output power, you need to check the following aspects:
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1. Check the external power input: Check whether the external power input is normal. You can use a multimeter to measure the voltage of the input power supply to ensure that it meets specifications.
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2. Check the switch tube: check whether the switch tube controlled by Strl472 works normally. A multimeter can be used to measure the turn-on and output voltage of the switching tube.
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3. Check the configuration of the Strl472: Make sure that the Strl472 is configured correctly and that there is no problem with the connection of individual pins.
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4. Check the circuit connection: Check whether the entire circuit is correctly connected, including the resistance-capacitance circuit and the output load.
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If none of the above methods work, the problem may not be with the Strl472 itself, but with the external circuit. Relevant circuits and components need to be further examined. If you are not sure how to do it, please seek professional technical support or consult a circuit design expert.
Switching power supply No power output That should be no power, or Str|472 switch is broken