tas5261

geert de vries

Other Parts Discussed in Thread: TAS5142, TAS5624A, TAS5614, TAS5631, TAS5162

At this moment I am considering TAS5261 for a new design. We have experience with TAS5142/5162 and TAS5231 in our products sofar. Mostly with very good results

For the TAS5261 I noticed a different recommended configuration regarding the bootstrap capacitor. The resistance in series with the bootstrap cap and the presence of the extra snubber looks like a remedy against overcharge of Cboot caused by undershoot of the output node. Also the presence of the TVS diodes on the outputs is typical for this part. Does this mean that the TAS5261 is more vulnerable for undershoot/overshoot than other members of the TAS family?

I also notice that it is not possible to put the part in BTL mode by hardware configuration. We need and extra XOR , correct?

Are there any parts on the roadmap that will replace this part?

regards

Geert de Vries

over 10 years ago

0 Don Dapkus over 10 years ago

TI__Guru**** 189399 points

Hi, Gert,

I would recommend using a newer device in PBTL mode... Something like TAS5614L? Or maybe TAS5624A?

-d2

0 geert de vries over 10 years ago in reply to Don Dapkus

Intellectual 580 points

Hi Don,

thnx for the quick reply.

We use 48V as power bus voltage....which is too high for TAS5614 and 5624. ( if the datasheet is correct)

The options that are left are the TAS5631 and the TAS5162 which are capable of operating on 48V.

I wanted to use a open loop device specifically, so that leaves TAS5162 if I am correct.....

regards

Geert

0 Don Dapkus over 10 years ago in reply to geert de vries

TI__Guru**** 189399 points

Hi, Geert,

You are correct; either TAS5261 or TAS5162 are the only parts that meet your requirements.

-d2

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