TPS923654: Request a model simulation (PSPICE MODEL & SIMLIPS MODEL)

Anita Ali

Part Number: TPS923654
Other Parts Discussed in Thread: TPS923653, , TPS923655, LM3409

Tool/software:

Request the Pspice or Simlips model for this part, TPS92365x series (TPS923653/TPS923654/ TPS923655) ? Additionally, do you have any calculation tools available for this component?

11 months ago

0 Lucia Gao 11 months ago

TI__Mastermind 36491 points

Dear Sir

Could you pls kindly send email to me (lucia-gao@ti.com) and I can share with you. Thank you!

BRs

Lucia

0 Anita Ali 11 months ago in reply to Lucia Gao

Prodigy 20 points

Hi Lucia,

Do you have a part that have similar specification to the LM3409, but in a boost converter configuration?

0 Lucia Gao 11 months ago in reply to Anita Ali

TI__Mastermind 36491 points

Hi Anita,

What is VIN range, VLED string forward voltage range, LED current? And what dimming method and dimming ratio?

Thank you!

BRs

Lucia

0 Anita Ali 11 months ago in reply to Lucia Gao

Prodigy 20 points

For vin range is 3.3V - 12V , range Vf is 12V - 15V , Max LED current = 2A , for dimming method is pwm and analog , and 1000:1

0 Lucia Gao 11 months ago in reply to Anita Ali

TI__Mastermind 36491 points

Hi Anita,

Thank you for your feedback!

In this case, you'll need a Buck-boost topology to achieve 3.3-12Vin -> 12-15Vf. I would recommend that you can use two stage: Boost converter CV (boost to ~20V) + Buck LED driver (TPS92205x). But I am just curious, why is the VIN will vary from 3.3V to 12V? Where is VIN from?

Thank you!

BRs

Lucia

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TPS923654: Request a model simulation (PSPICE MODEL & SIMLIPS MODEL)