UCC28951-Q1: UCC28951-Q1

Rajashekar Koutla

Part Number: UCC28951-Q1

Hello Sir

how to calculate the resistor value R11 (49.9 ohm) in the page number 57, figure no:56 of datasheet of UCC28951-Q1 datasheet .?

Is there any method to calculate that resistor value .?

or else can we go with any value ?

Thanks and regards

Rajashekar

over 6 years ago

0 Colin Gillmor over 6 years ago

TI__Mastermind 25570 points

Hello Rajashekar

This resistor is used to inject a perturbation during loop stability testing. It's value is not very critical but 50 Ohms is pretty normal. The only constraint on the resistor value is that it be small compared to the input impedance of the feedback loop. The article at www.ti.com/.../slup386.pdf gives more details.

Regards
Colin

Power management

Power management forum

UCC28951-Q1: UCC28951-Q1