TPS92512HV: Can TPS92512HV be used with TPS92661-Q1 or TPS92662-Q1?

Kazuya Nakai59

Guru 20550 points

Part Number: TPS92512HV
Other Parts Discussed in Thread: TPS92661-Q1, , TPS92662-Q1, LM3409, TPS92512, TPS92515, TPS92518, TPS92640

Hello guys,

One of my customer is wants to driver their LED with 2.5A using TPS92512HV. Also they want to use TPS92661-Q1 or 662-Q1 with the device.

Is their any problem if TPS92512HV is used with TPS92661/662? If is there any concern, could you please give me your comment or advice?

Your reply would be much appreciated.

Best regards,

Kazuya Nakai.

over 6 years ago

0 Kazuya Nakai59 over 6 years ago

Guru 20550 points

Hello guys,

Could I ask an aditional question?

Is LM3409 can be used with TPS92661-Q1 and TPS92662-Q1?

Your reply would be appreciated.

Best regards,
Kazuya Nakai.

0 Clinton Jensen over 6 years ago in reply to Kazuya Nakai59

TI__Mastermind 25500 points

Hello Kazuya,

The TPS92512 is a current mode control device. As a result it will not have the bandwidth to handle operation with the TPS92661/2 well.

The LM3409 is hysteretic and designed specifically for such transients, it is very fast. Other options to use with the TPS92661/2 depending on the current you need would also be the TPS92515, TPS92640, or the TPS92518.

The TPS92661 EVM uses the LM3409, it is the simplest solution for 2.5A.

Regards,

Clint

0 Kazuya Nakai59 over 6 years ago in reply to Clinton Jensen

Guru 20550 points

Hello Clint,

Thank you very much for your prompt reply.

I will recommend them to use LM3409/3409HV, TPS92640, and TPS92518(2ch output) because their requirement of LED driving current is 2.5A.

Thank you again and best regards,
Kazuya Nakai.

Power management

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TPS92512HV: Can TPS92512HV be used with TPS92661-Q1 or TPS92662-Q1?