TL494: Push pull PWM converter design

KUPPUSWAMY NAIDU

Prodigy 20 points

Part Number: TL494
Other Parts Discussed in Thread: UCC28250, UCC28251, LM5030

Our Old design is based on TL494. We have a requirement of designing 3 pushpull converter supplies

Vin [18-34] to work for -55 to +125 deg C :

1- 5V/22A

2- 28V/5A

3- 175V/1A

Please suggest new generation controller for the above requirements.

19 days ago

0 John Gomez 18 days ago

TI__Expert 6215 points

Hi Kuppuswamy,

What is the concern on using TL494 for your push-pull converter designs? This part number is still in production and is not going obsolete any time soon.

0 KUPPUSWAMY NAIDU 18 days ago in reply to John Gomez

Prodigy 20 points

Hi Jhon Gomez

Thanks for the confirmation. Please clarify whether TL494 has design & simulator support. Additionally we would like to use the devices with built in drivers and synchronous rectification for aerospace application.

Please advise

0 John Gomez 17 days ago in reply to KUPPUSWAMY NAIDU

TI__Expert 6215 points

You can refer to a push-pull controller like UCC28250 for PSPICE model and design calculator.

0 KUPPUSWAMY NAIDU 17 days ago in reply to John Gomez

Prodigy 20 points

Thanks, we would like to consider UCC28250/ UCC28251 in push pull configuration please suggest an application note.

0 John Gomez 16 days ago in reply to KUPPUSWAMY NAIDU

TI__Expert 6215 points

Hi Kuppuswamy,

You can still also use LM5030 which has a PSPICE model available.

You may refer to the LM5030 app note below:

https://www.ti.com/lit/an/snva553/snva553.pdf?ts=1762364531756&ref_url=https%253A%252F%252Fwww.google.com%252F

Thanks,

John

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TL494: Push pull PWM converter design