Power management

I am trying to Mod a STEVAL-ILL021V1 for my specific application.

I am needing a 50mA current so I change ISET to 37.4K. I changed the OVAP with 100k R1 and R to 4.12k. When I apply 5V to both PWM and EN the chip it fried my board. I am trying to find out what I did wrong before I continue. 3LEDS are being driven. ...

Flyback Converter L6562A output wattage changed wit varying input voltage

Working on L6562A DIP-8 and it is working good on 230Vac input voltage. but when Input voltage vary up and down, output wattage does not stable and change slightly.Reference design is taken from AN2838 as it is.

L6561 PFC based SMPS - will it operate properly when running the whole unit off HV DC supply?

Dear Members! In a near-aircraft fixed ground application i have to run a special, multi output SMPS which has a L6561 based PFC front end. So far this SMPS was run off regular 230V 50Hz mains, but due to the re-structuring of the whole application t...

We are using L7805CV , Input voltage = 30V output expected = 5V with 100mA of current requirement But we are getting 7.5V, the L7805 which is not correct,may know the reason?

We are using L7805CV ,Input voltage = 30V output expected = 5V with 100mA of current requirementBut we are getting 7.5V, the L7805may know the reason?according to datasheet input voltage is 35VCurrent supplied to the micro controller board and output...

Regarding STEVAL-SPIN3204

Purchased two (2) such boards (STEVAL-SPIN3204) from Digikey North America to evaluate the suitability of the SPIN32F0 for my automotive application.When attempting to download the eval software, I am trapped in an endless loop of "Error 403". In o...

STCS05, STCS1, STCS2 what is CDRAIN for? and will it operate without it?

The data sheets do not explain what CDRAIN is for. I suspect it is something to do with stability but do not want to use it because I need very fast PWM. Can these parts function without CDRAIN?

Fill area for PM8803

I am planning to replace a faulty PM8803 POE SMD. I have never dealt with pads and fill areas before, so apologies for what is probably an incredibly basic question.The layout guidelines say:"The exposed pad of the PM8803 must be connected to VSS: de...

What exactly is V_drop in the STP16DPPS05 datasheet?

I'm evaluating the use of STP16DPPS05 in my LED driving application.I'd like to drive two LEDs (wired in series) per channel at 5mA. The LEDs have a worst case forward voltage drop of 1.6V each. I intend to power the LEDs and the STP16DPPS05 with a 3...

Does anyone know what the recommended solder paste thickness is for these components, it's not listed on the data sheet nor the Tech Notes