Part Number: LM5009 I was reading in a locked thread for the LM5009 that conducted emissions may be reduced by adding a series resistor to the boot cap. What would be an appropriate resistor value?
Part Number: LM5009 Hi Team
We are using LM5009 in one of our design some of we are not getting output voltage . If we compare faulty boards and working boards only difference i can see
if faulty boards has switchig frequency of 30 Khz while working…
Part Number: LM5009 Hi,
Now the customer is considering to use LM5009 and estimating the behavior at RCL left open due to soldering failure. I understand that RCL set the length of off-time, then how does LM5009 behave under over load condition with…
Part Number: LM5009 Other Parts Discussed in Thread: LP5009 Hi! Please support here:
The requirements: • I2C bus, no other signals available. No activated ENABLE e.g. • 3V3, I2C bus is also at 3V3 level • 5V are available for the LEDs • LED: anodes…
Part Number: LM5009 Hi
Our customer uses LM5009 on their application. They found a sample that the frequency is 7kHz. (The setting frequency is 30kHz.)
Does this device has such a large variation of frequency at continuous conduction mode if all external…
Part Number: LM5009 Hi
According to datasheet, the frequency in discontinuous operating mode is described at bellow.
The variation of frequency is similar to the variation of Ton as you mentioned at the previous post.
How about in discontinuous…
Part Number: LM5009 Hello Team,
One of my customer is referring to reliability data of LM5009 and following questions, which are not answered in FAQs or foot notes.
1. What are operating test conditions (electrical), i.e., Load applied, (I/p / o/p…
Part Number: LM5009 Hi,
The customer is evaluating LM5009 and they found that the switching pulse count is varied depend on input voltage. I tried to measure by using EVM with default external components and then could duplicate it as attached.
[Question…
Part Number: LM5009
Hello team,
I noticed that on the two datasheets from TI and from National, there is a difference regarding the Boost pin BST. Attached are the two DS, lm5009.pdf
NATIONAL_LM5009.pdf
From page 3, "Pin Configuration" of the…
Other Parts Discussed in Thread: LM5009 I have a question.
My customer are using LM5009.
LM5009 is used in the power supply for the control circuit of the fan motor.
Customer checked current at Vin pin.
Normal is a load current of about 10mA…
