Hello,
I've never seen the connection configuration in figure 2 in any article that's why I don't recommend it. Changing the resistor divider values can affect the compensation and the RC network needs to be recalculated.
The TL431 has some…
Part Number: ATL431 Other Parts Discussed in Thread: TL431 , I am looking to use the ATL431 as a comparator, as shown in SLVSCV5D Figure 30. In this application, the "Vin" of Figure 30 is a higher voltage signal, so "Rin" is actually a resistive voltage…
Part Number: ATL431 Other Parts Discussed in Thread: TINA-TI , , TL431 Tool/software: TINA-TI or Spice Models Hello,
Our customer use the ATL431, have some questions about simulation.
They checked the stability of their circuit using TINA-TI simulation…
Part Number: ATL431 Other Parts Discussed in Thread: TL431 , Hello,
Our customer trying to change from TL431 to ATL431 due to low IKA.
Their usage is VREF voltage differ from VKA, there is no data in such condition in the datasheet.
They know that their…
Part Number: ATL431 What is the statistical distribution of reference current? The data sheet lists it as 30nA typical and 150nA max, but is there a distribution curve of Iref? Is 150nA the 6Sigma maximum? What would be the 6 Sigma minimum?
Part Number: ATL431 Other Parts Discussed in Thread: LM4041-N This shunt regulator is great for making a pull-down current source with an N-MOSFET.
Does TI or anyone else have a complementary part to make a pull-up current source with a P-MOSFET?
In other…
Part Number: ATL431LI Other Parts Discussed in Thread: ATL431 Hello,
Do you have a minimum and maximum voltage level for the Cathode when using the ATL431 as comparator?
Datasheet only states that the voltage will be approximately around 2V (datasheet…
Hello Rock,
This is a pretty unusual situation. I have not seen waveforms like this before.
VS13 is controlled internally by the RUN signal, so VS13 turns on when RUN goes high and turns off when RUN goes low. Also, PWML only pulses when RUN is high. RUN…
Part Number: ATL431 Other Parts Discussed in Thread: TL431 , LM4041-N , LM4040 Hi,
I want to use the ATL431 for a 4V reference, and from the datasheet Fig 14 and 15 it seems that there will be some cases where it will be unstable.
The cathode current should…
Hello Valentinas,
Sorry about the audible noise at light load. Given that it is audible and only ~5mA on each output, it indicates that the operating mode is SBP(1 or 2). (LPM operates are ~25kHz.) But the dynamic nature of the noise suggests that the…