LM3644 stability test

omry miz

Prodigy 10 points

Other Parts Discussed in Thread: LM3644

Hey I want to do a stability test to the LM3664 using FRA(bode100),

what is the right way to do this measurement?

thanks

over 1 year ago

0 Steven Li over 1 year ago

TI__Mastermind 23150 points

Hi Omry,
Our expert is currently celebrating Chinese New Year and is out of office. He/she will reply to you after Feb.18 when he/she is back to office. Thanks for your understanding.
Best Regards,
Steven

0 Ives Li over 1 year ago in reply to Steven Li

TI__Expert 6440 points

Hi Omry,

Sorry, but the LM3644 cannot do the loop test, because it is an internal compensation device.

thanks!

BRs,

Ives Li

0 omry miz over 1 year ago in reply to Ives Li

Prodigy 10 points

Ok I'm understand ,

Is there any way to test stability for this IC(maybe by load transient)?

thanks Omry.

0 Ives Li over 1 year ago in reply to omry miz

TI__Expert 6440 points

Hi Omry,

Sure, the load transient could be test.

You can set the device to torch mode (constant current), and change he current value by I2C interface to see the load transient behavior.

Thanks!

Ives Li

Power management

Power management forum

LM3644 stability test