Hi Daniele,
i recommend to try CCM to see the effects on the waveforms. It is possible, that the layout has to be improved for a proper DCM operation with these specs. Also CCM operation can reduce the heating of the inductor and FET.
For the next ckeck…
Part Number: LM5156H Tool/software: Hello guys,
I am designing a boost flyback controller using LM5156HPWPR. So far everything work fine except for the UVLO low voltage threshold is not following my calculations:
My settings are as below:
V supply(on )…
Part Number: LM5156H-Q1 Tool/software: Hello Team,
I am working on LM5156HQPWPRQ1 PWM controller IC. And I have seen that IC is malfunctioning.
when voltage is given externally at EN (pin 14), seeing voltage at BIAS (pin 1) pin. So, I want to understand…
Hi Daniel,
LM5123 has a bypass mode and could support what the customer wants, however the max voltage of the input pins is limited to 42V.
Another possibility for a synchronous solution would be LM5122.
Best regards
Moritz
Hi Daniele,
You are right, it would be a good idea to operate the MOSFET with a higher voltage.
For this you can connect the 9V to VCC directly. You dont need to connect it to BIAS.
Best regards
Moritz
Part Number: LM5156H-Q1 Other Parts Discussed in Thread: LM5156 Hi expert!
I want to know if I add 330nF CUVLO in parallel with RUVLOB. Should I add RUVLOS? I don't know if this capacitor is too large...Or what is your recommendation for this capacitor…
Part Number: LM5156H-Q1 Other Parts Discussed in Thread: LM5156 Team,
chapter 10.1 of the datasheet states the POH. The values are far below what my customer needs. However, their operating conditions are below max Vin and below 101C junction temp.
Is there…
Part Number: LM5156H-Q1 Other Parts Discussed in Thread: LM5156 Hi team,
My customer want a 48V to 12V isolated DC/DC power solution for further vehicle 48V system, 2A loading is OK. Could you please suggest a suitable part? Is LM5156H-Q1 the proper device…
Part Number: LM5156H Other Parts Discussed in Thread: LM5156 , LM51561 Hello All
I am developing isolated DC to DC For as per below specs.
Input - 17 VDC to 32V DC.
Output - 5 VDC
Load - 3A.
Overload current - 3.5A
using which pin of the IC Can I tune Overload…
Part Number: LM5156H Other Parts Discussed in Thread: LM5156 Dear TI team, I've designed a boost converter using the LM5156 IC with an input voltage of 50V, output voltage of 180V, and an output power of 30W. The converter's frequency is set at 330kHz,…
