TPS92640: About the maximum current

Ryu Yamashita

Part Number: TPS92640
Other Parts Discussed in Thread: LM3429,

Hi team,

There are LED drivers for lighting such as TPS92640 and LM3429 with a maximum current of 5A, but why is the maximum current determined for these devices?
I thought it depends on the external FET, so if there is enough room in the current rating of the FET, the current can flow.

Sincerely.
Ryu

over 3 years ago

0 Hardy Wu over 3 years ago

TI__Genius 12915 points

Hi Ryu,

Our expert is out of office for business trip and will reply you before 11th Aug. Thanks.

0 Ryu Yamashita over 3 years ago in reply to Hardy Wu

Genius 3995 points

Hi Hardy,

Thanks for the reply.
I understand. I will wait for your reply.

Sincerely.
Ryu

0 Hardy Wu over 3 years ago in reply to Ryu Yamashita

TI__Genius 12915 points

Hi Ryu,

Thanks for your understanding. I will contact the expert to see if he can reply you quickly.

0 Ryu Yamashita over 3 years ago in reply to Hardy Wu

Genius 3995 points

Hi Hardy,

What is the status of this matter?

Thanks.
Ryu

+1 Yuting Shao over 3 years ago in reply to Ryu Yamashita

TI__Genius 13001 points

Hi Ryu,

Your understanding is correct, and the maximum current is dependent on external FET.

BR,

Yuting

0 Ryu Yamashita over 3 years ago in reply to Yuting Shao

Genius 3995 points

Hi Yuting,

Thanks for the reply.
I understand that it depends on the FET.
But why is it marked as 5A?
Is there any particular reason?

Thanks.
Ryu

+1 Yuting Shao over 3 years ago in reply to Ryu Yamashita

TI__Genius 13001 points

Hi Ryu,

In fact, our customers usually apply TPS92640/1 for applications more than 5A. And you don't have to have concerns about this.

BR,

Yuting

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TPS92640: About the maximum current