SW frequency of LM5022

Masami Michino

Other Parts Discussed in Thread: LM5022

Dear, All

A customer is considering to use LM5022 as a flyback controller.
They would like to use a SW frequency by 150kHz.
But "Figure 8." of Datasheet then, more than 200 kHz of frequency is drawn.
Are they able to use a SW frequency for LM5022 by 150kHz?

Thanks, Masami M.

over 9 years ago

0 David Baba over 9 years ago

TI__Mastermind 40040 points

I have used this part successfully at Frequencies below 200 kHz. It should not be a problem.

0 Masami Michino over 9 years ago in reply to David Baba

Genius 5070 points

Hi, David Baba-san,

Thank you for your reply.
I answer it to the customer.

Thanks, Masami M.

0 Leo Sheftelevich over 9 years ago in reply to David Baba

Prodigy 20 points

Hi David,

Is there any data available that would guarantee operation at lower than 150-200kHz frequency? I am interested in 50-100kHz range right now. Would you be able to share this info with me as a potential customer? If 50kHz is not possible with 5022, can you recommend another PWM controller driving a low-side MOSFET in SEPIC application?

Thank you,

Leo Sheftelevich

Power management

Power management forum

SW frequency of LM5022