Part Number: LM5155 The datasheet of this part says:
It can operate with the input supply voltage as low as 1.5 V if the BIAS pin is greater than 3.5 V.
In the schematic, i can see BIAS. But i can't see "input". Where is input?
Part Number: LM5155 Tool/software: I am building a boost circuit using LM5155, with an input of 24V and an output of 150V/500mA. When unloaded, the output is normal at 150V, but as the load increases to 3kohms, the output voltage begins to drop. When…
Part Number: LM5155 Hi,
I am designing Isolated flyback with LM5155. I am designing for Vin=15V, Vout=29V and Iout= 0.75. I used below equation to calculate cross-over frequency which is mismatching with value calculated used TI design excel sheet.…
Part Number: LM5155 Tool/software: In my design, my LM 5155 is connected to a regulated 24V regulated supply. The load is an LED that needs 28~37 V, with less than 1 A of current. I need to control the brightness of the LED with a reference command voltage…
Part Number: LM5155 Tool/software: Hi E2E,
My customer has a new project to study as the following.
Product specifications: Input voltage range: 4.5~18, 9~36, 18~75 VDC
Therefore, the use of LM5155x requires emitter follower lines, and the size…
Part Number: LM5155 Other Parts Discussed in Thread: CSD18543Q3A Tool/software: Hi,
I'm using this converter to boost 5V to 30V. But when I measure the output unloaded I get 8.5V on the output. When I load it with a 1K ohm resistor it collapses to…
Part Number: LM5155 Tool/software: Hello experts,
Currently my customer is interested in our LM5155 to design PSR flyback for their application (home appliances)
Based on datasheet it seems LM5155 can be used for PSR (Primary side regulation) in flyback…
Part Number: LM5155 Other Parts Discussed in Thread: LM5157
I am designing a buck-boost converter with input voltage in the range of 2.5V to 5V and Power 2-3W. Could you recommend a smallest possible converter + controller? I need to regulate the input…
Part Number: LM5155-Q1 Other Parts Discussed in Thread: LM5155 , TL431 Hello team,
There are 2 questions when my customer using LM5155, pls. help support:
The waveform of the rated load is shown in the first figure, including the waveforms of Vgs…
Part Number: LM5155 Tool/software: Hi Team
customer need double confirm, we reviewed the customer schematic according to the LM5155EVM-SEPIC User's Guide and it seems to be ok,
the customer is also to modify the feedback method.
please kindly let…
