UCC28251: Open Loop Operation

Kishor Satish Gaikwad

Part Number: UCC28251

Hello,

Can I operate this IC in open loop such that I will get PWM with 50% duty cycle always (after soft start)? I am planning to driver a half bridge in open loop always with clock sync option.

Thank you

over 3 years ago

+1 Jonathan Wong over 3 years ago

TI__Genius 10945 points

Hello Kishor,

You can operate the UCC28251 at 50% duty cycle in open loop. However, a max duty cycle of 40% - 45% is recommended for half bridge DC/DC converter to prevent saturation of the transformer.

Regards,

Jonathan Wong

Power management

Power management forum

UCC28251: Open Loop Operation