Hi Samuel,
The EVM transformer use 30uH transformer (see below snapshot of EVM BOM presented in the LM5180EVM-S05 user's guide https://www.ti.com/lit/pdf/snvu592 ), and the Iq is close to 1.3mA. I think the 22uH would help you to reduce the Iq to below…
Part Number: LM5180EVM-S05 Other Parts Discussed in Thread: LM5181 , LM5180 Hi team,
Customer is trying to evaluate LM5181 using LM5180EVM.
And we got inquires as following.
Compared quickstart calculator between LM5181 and LM5180, they found the difference…
Part Number: LM5180EVM-S05 Other Parts Discussed in Thread: LM5180 , LM25184 , LM25183 Hi team,
Can you help my customer with the following request?
The board runs perfectly, as described in the data sheet. The output voltage is at a constant 5V with a load…
Part Number: LM5180EVM-S05 I trying to make 12Vin (or 24Vin) to 24Vout spec based on LM5180EVM-S05.
※Transformer changed default(YA7889) to the other custom, and the other external components are changed depend on Input/Output specification.
But measured…
Part Number: LM5180EVM-S05 Other Parts Discussed in Thread: LM5180-Q1 , LM5180
Hi, I'm laying out a virtual copy of the EVM board and wanted to ask why there is no top copper under the transformer? I assume it is to reduce noise coupling into the ground…
Part Number: LM5180EVM-S05 Other Parts Discussed in Thread: LM5180 Dear TI,
I'm testing the LM5180 EVM board only by changing the transformer. Please refer to the attached Transformer specifications. The problem is that the output is changing according…
Hello,
Your output capacitance looks low when compared to the similar design shown in Section 9.2.1 in the device datasheet. For a 5V, 1A converter, it is recommended to have 100uF. The transformer selection is also far off from what we recommend in the…
Hello,
Please refer to Tim's answer in this post:
(+) LM5180EVM-S05: Light load operation and transient response - Power management forum - Power management - TI E2E support forums
The LM5181 has a minimum load requirement. If your application requires…
Part Number: LM5181 Other Parts Discussed in Thread: LM5180EVM-DUAL Hi,
we have custom board with dual output flyback design based on LM5181 with following parameters:
Vin nom= +12V
Vin range = 11V…13V
Vout1 = +12V /200mA
Vout2 = +56V / 5mA
Npr…
Part Number: LM25180 Other Parts Discussed in Thread: LM5180EVM-DUAL , LM5180
Team,
Could you please help with the below question: 1) LM25180 datasheet section 9.2.2 and 9.2.3 show two dual output example with galvanically coupled output voltage. We need…