Other Parts Discussed in Thread: LM2842 This is the first run of these boards, (we made 20 prototypes) What happened was we tested all 20 boards with Vin of the lm2842 at +12Volts all 20 boards worked. The customer said they wanted it tested at +36Volts…
Other Parts Discussed in Thread: LM2840 Greetings,
I have essentially duplicated Figure 15 of the LM2840 Datasheet. I'm using the LM2841X. I did a careful layout heeding the guidelines. Above a certain input voltage, the output does not regulate when…
Hi
We have a customer has a LM2842X. We know the voltage is 4.5V to 42V as datasheet.
But they want to know if it could works with 4V. Could you please confirm it and send me the related document on this. Thanks a lot.
Hello Sridhar,
Would you please send some more information regarding the problem?
1) What is the input voltage range and the forward voltage on the LED? What version of LM2842 are you using (X or Y)? 2) What is the inductor part number? And what is…
Other Parts Discussed in Thread: LM22672-Q1 , LM34919C-Q1 , LM2842-Q1 , TPS54140 , LM22672 I would like to confirm the operation with low dropout voltage and VIN<VOUT for LM22672-Q1, LM34919C-Q1 and LM2842-Q1.
For TPS54140(TPS57140), the problem occurs…
Other Parts Discussed in Thread: LM2842 I've got a few questions related to the LM2842.
1) Is there any concern applying the following relow profile to the standard part? http://www.aimsolder.com/LinkClick.aspx?fileticket=r1XJPnlAJiI%3d&tabid=95
…
Hello Ewan,
I don't think there is a minimum ESR requirement for LM2842. The restriction is on the other end - when you have high ESR. Low ESR ceramic caps should be fine.
Page 10 of the datasheet has a recommended design for 5V output. You can…
Part Number: LM2842XMK-ADJEV Other Parts Discussed in Thread: LM2842 Tool/software: Hello.
Im looking for for geometry data suitable for EMC Simulations. (ODB++ export or Ansys .edb export)
Are these available or can be provided?
Regards,
N…
Part Number: TPS65131 Other Parts Discussed in Thread: LM2842 , OPA2197
Hi Team, Our customer design using TPS65131 is experiencing issues in generating asymmetrical power supply. According to our customer, when the negative rail is loaded, with even…
Why does the SW point of the LM2842 have a phenomenon as shown when the inductance of LM2842 is 15uH, and after I change the inductance to 47uH , the wave of sw is normal，Is this because the inductance is too small and the energy storage is insufficient…
