Chip model query

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Chip model query [Copy link]

There is a chip with the silk screen printed with B11AT, 811AT, T or j. The package is SOT23-6. Judging from the peripheral circuit, it should be a DCDC power chip. The problem is that I can't find the corresponding model no matter how hard I look.

Dear all-mighty netizens, do you know what movie this is?

dcexpert

If you are sure it is a DC chip, you can copy down the circuit diagram first. Many SOT23-6 DC chips are compatible, so find a similar DC chip to compare.

呜呼哀哉

dcexpert posted on 2024-8-30 08:04 If it is confirmed to be a DC chip, you can copy down the circuit diagram first. Many SOT23-6 DC chips are compatible. Find a similar DC chip to compare.

If you want to guess the input voltage from this material, then I will think of other ways.

秦天qintian0303

Alas, published on 2024-8-30 08:56 If you want to guess the input voltage from this material, then I will think of other ways.

Isn't it enough to just power it on and test it? Do you suspect that the device is broken?

呜呼哀哉

Qintianqintian0303 posted on 2024-9-1 18:57 Isn't it enough to just power it on and test it? Do you suspect that this device is broken?

It's not broken. I guess it's DCDC and the circuit is BUCK. The power-on test is normal, but I can't find the model.

After washing it, I saw that the model number was B110T or 8110T and the T was at most 7. Anyway, I just couldn't find it.

beyond_笑谈

Copy the circuit first according to the peripheral components and circuit board. This circuit looks very simple. Measure the output voltage and combine it with the feedback resistance value in the figure to find the corresponding buck chip.

damiaa

Fortunately, there are many alternative packages.

They are basically made in China.

It takes time to find the model number.

If you really want to find information, you can go to the websites of major domestic DCDC manufacturers to look for comparison information.

xihosi

Fortunately, there are many alternative packages.

They are basically made in China.

It takes time to find the model number.

If you really want to find information, you can go to the websites of major domestic DCDC manufacturers to look for comparison information.