TPS61169: TPS61169 Design Spec question

Chun Youngsu

Part Number: TPS61169
Other Parts Discussed in Thread: , LP5024, LP5030

Dear TI Team,

During the review of TPS61169, we would like to inquire if we can confirm that the specifications we want are available.

We are planning to design WLED as 3S10P with 9V 200mA specification.
Can you confirm that it is possible with TPS61169?

Thanks.

over 7 years ago

0 Sean Zhou over 7 years ago

TI__Mastermind 22745 points

Hi Youngsu,

What's your minimum input voltage?200mA is the total output current? The maximum VFof LED is 3V?

Sean

0 Chun Youngsu over 7 years ago in reply to Sean Zhou

Expert 2485 points

Hi Zhou,

LED VF : 3V
Input Voltage : 5V
Total Current : 200mA
LED circuit configuration : 3S10P

Please make sure it is configurable as TPS61169.

Thanks.

0 Sean Zhou over 7 years ago in reply to Chun Youngsu

TI__Mastermind 22745 points

For you application, it should be ok. But I have to mention that the current match among this led strings will not be good.

Sean

0 Chun Youngsu over 7 years ago in reply to Sean Zhou

Expert 2485 points

Hi Sean,

Can you recommend other suitable parts?

Thanks.

0 Chun Youngsu over 7 years ago in reply to Sean Zhou

Expert 2485 points

Hi Sean.

Can you recommend other suitable parts?

Thanks.

0 Sean Zhou over 7 years ago in reply to Chun Youngsu

TI__Mastermind 22745 points

Hi
Do you have spec for led current match? TPS61169 can support the function. What's your detail application?
Sean

0 Chun Youngsu over 7 years ago in reply to Sean Zhou

Expert 2485 points

Hi Sean.

Application : AI speaker

Thanks.

0 Sean Zhou over 7 years ago in reply to Chun Youngsu

TI__Mastermind 22745 points

Hi Chun,
TPS61169 is a cheap and easy-use device. I suggest you to apply a TPS61169EVM to verify the performance. Thanks for choosing our device.
Sean

0 Sean Zhou over 7 years ago in reply to Chun Youngsu

TI__Mastermind 22745 points

Hi Chun,
I have checked with our system, for AI speaker, can you accept the no-boost mode, for example, LP5024 may be suitable for you with fancy performance. We will release another LP5030(30 channel) soon.
Sean

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TPS61169: TPS61169 Design Spec question