LM3410: Schematic review : Change from FAN5333BSX to LM3410XMF

CHO SR

Genius 3415 points

Part Number: LM3410

Hi,

The customer is considering changing FAN5333BSX to LM3410XMF.

Please review whether LM3410XMF can be used for the existing schematic.

LCD backlight spec : IF=180mA / VF=9 ± 0.9V.

The FAN5333 can perform FB dimming.

over 2 years ago

0 Dave Yaeger over 2 years ago

TI__Intellectual 2925 points

Hi Cho,

Our experts for this issue are currently celebrating the Chinese Golden Week holiday, they will respond to you next week.

Regards,

Dave

0 CHO SR over 2 years ago in reply to Dave Yaeger

Genius 3415 points

Hi,

Do you have any feedback on the results of the review?

0 Mason Wang over 2 years ago in reply to CHO SR

TI__Genius 9630 points

hi CHO

may I ask the customer and application here? As LM3410 is a quite old device, I would like to check the requirement with you and see if there is a better choice.

Is PWM dimming a must(LED current on and off) or customer can accept analog dimming (only change current amplitude)?

0 CHO SR over 2 years ago in reply to Mason Wang

Genius 3415 points

Hi Mason,

The customer wants a P2P product that replaces FAN5333.

PWM dimming is required.

Please recommend a replaceable product.

Customer : Yangwoo Electronics

Application : Home medical device

+1 Mason Wang over 2 years ago in reply to CHO SR

TI__Genius 9630 points

hi Cho

thanks for the information. If customer wants a P2P device with PWM dimming, then I think LM3410 is only choice and I think the schematic is ok.

BTW, just for your information if customer is interested for other medical projects, we are now developing a new device supporting buck, boost or buck-boost topology, input range 4V-65V, current capability up to 4A, ultra deep dimming ratio.

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LM3410: Schematic review : Change from FAN5333BSX to LM3410XMF