Part Number: LM2587 Other Parts Discussed in Thread: LM5155 , Hi!
I would like to design a multiple output flyback converter operating from 9–15V based on the LM2587T–adj device, for a Cathode Ray Tube, Power Supply board, with the following outputs…
Part Number: LM2587 Other Parts Discussed in Thread: LM5157 Dear TI Expert,
I have a LM2587 design, which is based on the datasheet.
After I run the same parameters on the Webench, the result is pretty scary. the inductor in the datasheet is 33uH…
Part Number: LM2587 Other Parts Discussed in Thread: LM51551 Hi team.
I'd like to know about the current limit for switch pin.
My customer refer to snva005b(p.7) and configure the flyback.
When FB pin is GND, does the NPN Switch(4pin) over…
Part Number: LM2587 hello.
Need help please. I am going to lay out a PCB for LM2587-ADJ.
19V input. step up to 32V 2A (64 Watts)
according to the LM2587 pdf the inductor for 32v 2A output is 100uh.
parts no: Schott 67147420 .
it is not easy…
Part Number: LM2587 To whom it may concern, I am using LM2587SX-ADJ/NOPB as a boost regulator to boost +24v to +48v, the design worked ok on 2 proto phases about 25 assys, yet I have had some outline failures, where the regulator just stop working, outputting…
Part Number: LM2587 I’m trying to design a dual-output flyback circuit using the LM2587T-ADJ chip. Input would be 30 volts while outputs would be +/- 15 volts and each drawing 3 amps each. Figure 26 of the LM2587 datasheet seems to be a good starting…
Part Number: LM2587 I built a circuit based on "Increasing Available Load Power in an LM2587 Boost Regulator" app note (its link is http://www.ti.com/lit/an/snva552/snva552.pdf ). The difference is my input is around 24VDC, the output I want is 28VDC…
Hi Zack,
first of all, thanks for the fast and helpful answer. But there are still two more questions that came up when scrolling through the datasheet of the LM2587-5.0:
“Figure 29. Triple-Output Flyback Regulator” shows a Transformer with ratios…
Part Number: LM2587 Other Parts Discussed in Thread: TPS43061 , , TPS54560B Hi there, I want to use this chip for two different purposes. 1) to boost a 15V to a 24V and provide atlast 3A of current and another to 2) regulator 15V at 4A or more amps. I…
Hi Vishnu
Considering the large output current, I think using a opto-coupler to regulate the 5V output voltage is higher efficiency solution and avoid using LDO.
The +-15V can be generated by additional winding, although the regulation accuracy…
