UC2845: Cost effective controller to generate 50% duty 300K to 500K output

Hi Sheldon,

TI has many cost effective PWM controllers that can output 50% duty cycle, UCC28C4x family, UCC281x, UCC2800 .

Can you clarify what you mean by part to part slew rate?

Regards

Peter

Hi Peter,

They'd like to duty cycle and output frequency are less infected by device they are using and the small variation of external components.

Thanks

Sheldon

Hi Sheldon,

What is their application and power supply toplogy ?

If they are using flyback then UCC28700 PSR flyback controllers may be a way of reducing component count.

Regards

Peter

Hi Peter,

They implement like below:

Now, they like to know if they can replace UC2845 with tl2845 directly here? By changing RC, they'd like to output PWM at 500K, will that be okay?

Thanks

Sheldon

Hi Peter,

Any updates on your side?

Thanks