Hi Harry,
There does not appear to be anything off the shelf that would suit our particular application but I must thank you for mentioning MPPT and putting the idea in my head.
I have stuck with the LM5123-Q1 and placed a simple current regulator on…
Hi Harry,
Can you tell in this structure of LM5123-Q1 + NTMFS5C670NLT1G FET what will be the drive current ?
I asked it since I afraid that may influence on the heating dissipation of the FET because of long t-on/t-off as a result of adding resistor and…
Part Number: LM5123-Q1 Tool/software: Hi,
There is a Pspice file availabile on TI website. When I open the lib file, it is said : "* Model Usage Notes: 1. PSpice transient model is developed considering SIMPLIS model as reference."
As I more…
Part Number: LM5123-Q1 Tool/software: Hello,
Regard the Bypass mode.
Does it work for all input voltages as defined in the datasheet for boost (3.8-42v) ? And does it also support 200W power transfer ?
For example, my application in its regular operation…
Part Number: LM5123-Q1 Other Parts Discussed in Thread: LM5121 Tool/software: Hi Harry,
Does the UVLO_EN pin allows when connected to a HOST (MCU) in addition to its resistor divider, to shut-down the LM5123-Q1 when pulled low by the HOST? Is it, as…
Part Number: LM5123-Q1 Hello. I have a design from TI Webench Power Designer using the LM51231. My input range is 9-22V and my output is 24V at 6A. However, that chip is out of stock. I would like to use the LM5123 as a drop in replacement, but the Webench…
Harry Hofner said: How many 120uF capacitors and how many 10uF capacitors? For a pretty constant load, one each will be good enough. For a highly dynamic load (like an audio amplifier), you will need more
And for the input capacitance, one 120uFand one…
Part Number: LM5123-Q1 Other Parts Discussed in Thread: LM5155 , LM5156 , LM5158 , LM5157 Hi TIer
Please recommend an alternative to the LT3758 .
LM5123 seems only have boost function.
But LT3758 can do SPEIC , CUK circuit.
Could you give me some suggestion…
Hi Sergi,
It is stated for a proper FPWM operation you would need this condition fulfilled, so it is possible that it would not enter the FPWM mode with these conditions not fulfilled, it is difficult to state what will happen exactly in this case, but…