Part Number: LM5026 Other Parts Discussed in Thread: PMP11478 , PMP22075 , Tool/software: Hi Sir,
customer refer the RT and TIME pin resistance value in the PMP11478 schematic, but efficiency is not good(only 58~60%) under the condition( 20v vin to 57v…
Part Number: LM5026 Tool/software: Hi Expert,
I tried to simulate the LM5026 with PSpice, the UVLO pin is connected to ground as shown bellow. According to the datasheet, the LM5026 should be shut down, but why the REF pin output 5V?
Thank you in advance…
Part Number: LM5026 Other Parts Discussed in Thread: PMP22075 Tool/software: Hello, T.I. team.
This question is related to LM5026: Vin 48V to Vout 12V(120W) circuit design.
We have updated the transformer and output inductor to cater for the greater load…
Part Number: LM5026 Other Parts Discussed in Thread: PMP22075 , , TL431 Tool/software: Hello,
I modified the circuit design of LM5026 based on PMP22075, but found that Pulse transformer (T6) makes noise when powered on.
The following are the specifications…
Alex,
SPICE models, reference designs, app notes and EVMs are available within the product folders for LM5026 and UCC2897A. The UCC2897A includes a design tool calculator but the LM5026 does not have a calculator tool available.
Steve
Part Number: LM5026
I have a forward converter with an input range of 120-190Vdc. I have the UVLO set at approximately 115V. If I turn on the supply slowly, it works fine, seen in the first picture PIC 1. However, if I do a rapid increase, it turns on…
Part Number: LM5026 Dear Expert
Could u hlep to review the sch ,many thanks !
Could u hleo tell me after lowering the two legs, the SS will also discharge internally, right ？
Part Number: LM5026 Other Parts Discussed in Thread: UCC2897A , What is the minimum operating frequency? The only thing I can find on the datasheet is the chart in figure 5 which shows RT vs Frequency with the bottom being 100kHz.
I have a design that I…
Part Number: LM5026 Hello,
I'm debugging an active clamp forward converter using LM5026, with the following parameters:
Vin = 54V
Vout = 48 V
Pout = 250W
Inductor 240 uH
f_sw=130k
Cclamp = 30n
N mosfet : Infineon IPB117N20NFD
P mosfet: ON Semi. F…
Part Number: LM5026 Other Parts Discussed in Thread: UCC2894 LM5026: the datasheet indicates 2 reset possibilities: P-MOSFET & N-MOSFET.
Plenty of examples for the P-MOSFET and it works.
Not a single example for connecting the N-MOSFET and any attempt…
