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Part Number: PMP9484
In the reference design( pdf file name : tidras4 ) there are five 0.009 resistors(R42-R46) kept in between the output of Boost converter (LM5122M) and the class D Power amplifier.(TPA3110D2). But there is no mention of the same in the BOM.Could you please share the specification of the same?
Also what is the purpose of these resistors ? Can we connect the output of the boost converter directly to the Class D power supply input.
In our automotive application we are using 24V battery as the input to boost converter. please suggest any changes required.? We are using TPA3118 class D amplifier instead of TPA3110D2
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In reply to Youhao Xi:
Thank you Youhao,
So its not needed in the final design right? In the schematics VOUT and VSupply can be directly shorted ?
Also can we supply 24V DC at the input of this LM5122 switcher IC? As the input range as per data datasheet is 4.5 to 65 V. We are planning to use the same design in our automotive application in which the vehicle is having 24V battery. Could you please confirm?
In reply to SREERAG TR:
Thank you Youhao.
I will double confirm the same. This resolved my issue.
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