TPS2513A-Q1: output voltage drop to 4.6v .

SARAVANA KUMAR

Part Number: TPS2513A-Q1
Other Parts Discussed in Thread: TPS2561-Q1, TPS2561A-Q1

hello

we have designing Dual Port Automotive USB Charge Port .but we are using TPS2513A-Q1 and TPS2561-Q1 . in this configuration design output voltage is drop. (2A load voltage drop)

is there is any difference between TPS2561-Q1 and TPS2561A-Q1

some difference found TPS2561A-Q1 ( Accurate 2.1A Min / 2.5A Max Setting)

over 5 years ago

0 Bob Ma over 5 years ago

TI__Expert 8980 points

Hi, SARAVANA KUMAR,

Do you check if current is limited? What's the Rlimit value?

Regards,
Bob

0 SARAVANA KUMAR over 5 years ago in reply to Bob Ma

Prodigy 110 points

Current limit set to 2.5 A.. i.e.20K

0 Bob Ma over 5 years ago in reply to SARAVANA KUMAR

TI__Expert 8980 points

Hi, SARAVANA KUMAR,

What's the Vin voltage? What's the vout voltage? What' your load.

If Vin drop too and Vout is close to Vin- Rds(on)* Iload, it means current is not limited, you need to check if power supply of VIn can supply enough current. Or you can bypass our part and connect load to Vin to see if same phenomenon happens.

Regards,
Bob

0 Bob Ma over 5 years ago in reply to Bob Ma

TI__Expert 8980 points

Hi, SARAVANA KUMAR,

Have you get you issue resolved? Because no more reply, I will close this thread for now.
Feel free to ask any questions.

Regards,
Bob

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TPS2513A-Q1: output voltage drop to 4.6v .