UC2625 RC-OSC Pin Behaviour?

Eray CANLI

Other Parts Discussed in Thread: UC2625

Hi,

I am trying to simulate UC2625 motor driver. What is the structure of RC-OSC pin? It sets the PWM frequency with a RC network.

In the application note U-115, when in voltage mode speed control, RC OSC pin is connected to PWM-IN pin. What is the output of this pin? Is it the adjusted PWM, or another value, like oscillator frequency given in datasheet (50kHz) ?

Thanks..

over 8 years ago

0 Luis Riveros over 8 years ago

TI__Expert 4435 points

Hello Eray,
Our experts have been notified and should reply soon. Thank you.

0 Seil Oh over 8 years ago

TI__Intellectual 1555 points

Hi,

It is going to be the oscillator frequency you have programmed with RC network.

Seil

0 Eray CANLI over 8 years ago in reply to Seil Oh

Intellectual 335 points

Thanks for reply.

So, is it a 0-5V PWM ?

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UC2625 RC-OSC Pin Behaviour?