Hi Gavin,
Are you using this in an isolated or non isolated solution? Usually an LM431 is used for isolated applications. You can use a common ground and couple it to the input ground using a capacitor. This will prevent your GND from drifting. Please…
Other Parts Discussed in Thread: TL431 , LM431 Hi All,
Finisar is looking for a very small shunt reference that can handle 30mA. The smallest package I can find is the 6SC70 and its too big for them (they always need something smaller)!. However,…
Other Parts Discussed in Thread: LM431 , LM117 , LM317 I am using the LM117T as a 3.3 V regulator for a tower-mounted low noise amplifier. However, I have so far burned up two LNAs due to transients on the LM117T output.
I am using the "standard" voltage…
Part Number: TPS23754 Other Parts Discussed in Thread: TPS23756 , TPS23730 I used tps23754 to design a POE function board, isolated output DC12V.
Because I also need a DC24V adapter in, according to document slva306a ,I select option2 .however ,in this…
Part Number: TPS23756 Other Parts Discussed in Thread: TPS2120 Tool/software: Hi Sir,
Please help to review our design by using TPS23756 and TPS2120.
The attached are schematic and layout files.
EW-7689FTI V1.0A_ES1_PD.pdf EW-7689FTI V1.0A-20250103_PD…
A colleague of mine noticed a few items in your schematic:
1. U2 is LM431 (2.5V reference) and with R28/R29 values your target output voltage is (33k+10k) / 10k x 2.5V = 10.75V. For 5V and 3.3V applications we normally use an error amp with a 1.24V…
Part Number: LM3481 We are referring LM3481 application note for designing Non-Isolated Fly-back converter. For that we are going through the design formulas given in application note.
In the application note of LM3481, there is one equation to calculate…
Part Number: TL431 What are the key parameters which changes across different grades? Which parameters don't change across different grades of shunt regulators ?
Other Parts Discussed in Thread: UCC28600 , LM431 , OPA2330 , TLC555 , SN7432 dear, I use the model downloaded from TI website to simulate ucc28600, but it can't converge.
the error discription:
**** 03/29/17 10:25:11 ***** PSpice 16.6.0 (October…
Part Number: TL431 Other Parts Discussed in Thread: TLVH431 , ,
Do you have a simple device nomenclature guide for shunt references such as (A)TL431, (A)TL431LI, TLVH431 and others?
