LM61460-Q1: Switching Frequency

Balaguru Hariharan

Part Number: LM61460-Q1

The measured Switching frequency is less than expected. Resistor we use for Rt is 6.2kOhm 1%. Normally we should have around 2Mhz switching for this resistance value but what we measure is 1.7Mhz. Is it a problem, what can be the reason. Please help

over 2 years ago

0 Colin Chen over 2 years ago

TI__Genius 10321 points

Hi Hariha,

There are many reasons that can make switching frequency drop, such as reaching Ton-min or Toff-min time, overcurrent protection and short circuit detected, so you should pay attention to test condition.

B R

Colin

0 Colin Chen over 2 years ago in reply to Colin Chen

TI__Genius 10321 points

Hi,

Since I do not receive any more replies, I will consider this issue resolved and close it. If you have any more questions, you can ask me again.

Thanks a lot.

B R

Colin

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LM61460-Q1: Switching Frequency