LM5180-Q1: Transformer for 2 output supply using LM5180-Q1

ADITYA MENE

Part Number: LM5180-Q1
Other Parts Discussed in Thread: LM25180, LM5180, LM5185

Tool/software:

Hi sir,

I want to design power supply using LM5180-Q1 IC which will have 2 outputs say 5 Volt 500 mA each. Can you suggest suitable fly-back transformer for this. Please look into this

Thanks & Regards

Aditya Mene

over 1 year ago

0 EricLee 11 months ago

TI__Guru 61601 points

Hello Aditya

Please download Quick Start at https://www.ti.com/tool/download/LM5180DESIGN-CALC , fill the input boxes including your electrical specifications (especially from E6-13), and send us the completed excel file.

-EL

0 ADITYA MENE 11 months ago in reply to EricLee

Prodigy 60 points

Hi Sir

First of all thank you for your valuable response. We are planning to design this supply for operating temp from - 40 °C to + 85 °C. Here I have attached the input output specifications for the same will you please suggest some fly-back transformers for the same.

Thanks & Regards

Aditya Mene

1106.LM(2)518x PSR flyback converter quickstart tool revB.xlsx

0 EricLee 11 months ago in reply to ADITYA MENE

TI__Guru 61601 points

Hello Aditya

I am sorry. Your application is not supported by LM5180/81/LM25180/3/4 due to the power limit at min VIN and Abs max VIN.

Please consider using LM5185. Please download the Quick Start at https://www.ti.com/tool/download/LM5185-DESIGN-CALC , input your electrical specifications and component selections. Please use ZB1051 as a starting point and refer the datasheet at https://www.coilcraft.com/getmedia/6a364174-fe48-4806-af5b-ff882c0f5ee8/zb105x.pdf. If required, please refer other transformer options here at https://www.coilcraft.com/en-us/products/transformers/power-transformers/no-opto/

Please create a new post if you have further question about LM5185.

Customers are responsible for component selections and layout design, as well as validating and testing their design implementation to confirm system functionality.

-EL

0 ADITYA MENE 11 months ago in reply to EricLee

Prodigy 60 points

First of all thank you for your valuable response. As you have suggested Coilcraft ZB1051 transformer for LM5185 IC can you suggest any transformer from Wruth for same application.

Thanks & Regards

Aditya Mene

0 EricLee 11 months ago in reply to ADITYA MENE

TI__Guru 61601 points

Hello Aditya

I am sorry. I couldn't find any in Wurth

-EL

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LM5180-Q1: Transformer for 2 output supply using LM5180-Q1