Power management

Hello support team,our customer HELAG ELECTRONIC GMBH, IMDS ID: 28796, needs the IMDS data for below product: VNN1NV04PTR-E, Rutronik article number: ICIFP45227.Thank you. Ileana Keges

Hello.Three product packages are identified in the TS33's datasheet.Among these, the QFN-8 package has 5 NC pins. Is it okay to connect them to VIN or VOUT or GND?I couldn't find a additional explanation for the NC pin, so please check there is anything connected inside or it is a connection prohibition pin.Thank you.

Please advise where I can find the device marking for TS4061AILT-1.225. I was expecting to find it in the datasheet but it doesn't appear to be in there. Maybe a more general question would be how does ST disseminate such information if not in the datasheet?

Hello ST Community,I am currently working on a project that involves the use of 2 LIR2450 Li-ion batteries. For the battery charging aspect, I am seeking recommendations for a suitable Power Management Integrated Circuit (PMIC) charger from ST.Specifically, I would appreciate your guidance on the following:PMIC Charger Recommendation:Could you please recommend a PMIC charger that is suitable for charging 2 Li-ion cells in parallel, specifically LIR2450 batteries? I am looking for a device that provides efficient and safe charging for this configuration.Configuration Details:What configurations and settings are recommended for the chosen PMIC charger to ensure optimal charging performance for LIR2450 batteries? This includes voltage, current, termination criteria, and any other relevant parameters.Reference Design:If available, I would greatly appreciate it if you could share any reference designs or application notes related to a PMIC charger for a 2-cell Li-ion battery configuration s

Hello,I've developed a PCB utilizing the STPM801 driver and am interested in deactivating its Oring feature.The device I'm working on is battery-powered and operates two BLDC motors. There's a specific requirement to maintain functionality when the motors are driven by an external source, allowing the battery to recharge from this energy. However, with the STPM801 driver's Oring feature active, it seems this capability might be compromised.Is there a way to turn off the Oring feature in this driver? Additionally, if I opt not to install the second MOSFET, which is responsible for preventing reverse current, will the driver still function properly?Thanks in advance,Valentin

Hello,I was considering using the L6482 IC in one of my projects, but i need a clarification.What does "AC" mean in the "Full bridge output voltage" absolute maximum specification? (More info in the following screenshot)  

Hello, I am searching for transistor particularly MOSFETs SCTW70N120G2V spice model. Where can I find it?Thanks

Hello, I am working on BLDC motor driver. I am use STM32G431 as control unit with Motor Control Workbench and DRV8323RH gate driver. I have problem with getting the motor to spin, as soon i I start it, i am getting under voltage error. And see some overcurrent problem at power stage. It happent both in 3 and 6 PWM control mode. It seems like it is software control issue. Does anyone have expierience with Motor Contron on Texas DRV83xx drivers?

hiI made a board with stm32l431 and L9963E.The voltage, current and temperature values have been read successfully.In addition, it was confirmed that it operates with settings such as UT, OT, OV, and UV.However, the Fault-L pin does not change to high level.Are there any conditions that must be set to use the Fault-L pin?In normal condition, HeartBeat_En is set to '0'.The conditions in the safety mechanism summary have been met.However, the Fault-L pin is still at low level.This is the circuit of the Fault-L pin.L9963E is the setup code.What's wrong? 

Hello,   I recently designed a wireless transmitter utilizing STWBC86, however, I have encountered a boot issue due to an empty FTP memory. I have been searching for firmware and a GUI to upload the firmware into the FTP, but have not had any success yet.   Has anyone encountered a similar issue or successfully designed and tested a wireless transmitter using STWBC86? Any suggestions or advice would be greatly appreciated.          

Hello, I ask help for finding a way to discover the data code of a VNP35N07-E from the trace code (GK1470EJ) shown on the label.Attacched the label.ThanksPaolo

Hi all,We have an application of an electric heating boiler using BTA16 triacs to commute resistive loads of 13A (rms). The max. temperature in the triacs is around 70ºC-80ºC.We are studying the option of using the BTA20 triac instead of the BTA16 one to improve the reliability of the solution. Both use the same case. I have checked the curves "On-state rms current versus case temperature" in the data sheet of both references and the behaviour in terms of max. current supported with 70ºC-80ºC case temperature seems equivalent because the BTA20 max current starts to decrease from 70ºC on while the BTA16 starts to decrease from 85ºC on. The scale of the graphs (in the attached) does not allow me to confirm which one would support more current. Could you please help me with this?In addition, I have seen the maximum power dissipation versus on-state RMS current graphs. It seems than the BTA20 max power dissipation is higher than the one in BTA16. Does this mean that under the same environm

Hi ST team,   I have requirement of DC-DC converter as per below :- Input voltage range: 20V-30V/1ARequired dual output  +15V and -15V. Input voltage range:  20V-30V/1ARequired dual output +10V and -10V. Input voltage range : 20V-30V/1ARequired output voltage: +5V only LDO for controller: Input voltage 5V and Output voltage 3.3V Kindly suggest for the same.

I'm looking for a reference schematic where I can use the STWLC38 for Qi charging, but the Qi charging will be disabled when a USB-C is plugged in. I also need the USB-C Vbus to be isolated from the connector while the Qi charging is active. I'd really like to have the configuration be controlled automatically by the STWLC38, if possible... Much like this from a competitive device. Is that possible?  

I'm working on a project to use L9502 for PWM output diagnostic. But we can't be sure how to config the Frame Counter bit in SPI message. Is it need to update the frame counter every time, or it just need to update it in consecutive frames? And for the consecutive frames, should we follow the SPI interframe delay electrical characteristics? Thanks for your help!

Hi frds,I've choose blue color led, that led works mention voltage & current, but my doubts is i choosed driver led driver for each LED, Which one is best ?, pls  suggest anyone....This part no'sLED2001PHLED2000DRST1CC40DR

Hi all, I'm designing a Qi charger and I'm wondering if I'll need to flash each IC in production, or if they come pre-loaded with firmware? If I have to flash them, is it done via the I²C interface? Thanks!

Hi all, I designed a custom 5W charger around the STWBC86. I programmed the config and patch found in STSW-WBC86FWBPP to the IC using WPSTUDIO and I got it to charge my device (another custom circuit, this one using a TI BQ51050 receiver IC)... for 4 seconds. Every four seconds or so it turns off, then starts again.I can tell it turns off by monitoring the input current (550mA when active, brief period around 400mA, then less than 10mA). The PWR_TRANSFER_ON LED matches what I see on my power supply. This input current is consistent with off-the-shelf chargers used with my RX circuit.My RX circuit works with off-the-shelf Qi chargers. If I try to charge something else (my phone, or my headphones) I get a tiny red blip (maybe 0.5s) instead of 4s. I suspect those peripherals are trying to pull way more than 500mA.The documentation on this chip is extremely limited, and I have yet to find what is causing this problem. The IC temperature is OK, and the GUI isn't showing me an

My question is about the STWLC98 chip. I am looking to integrate this chip into a wireless charger for a university project, so I need the source code of an application to be able to work on the chip and achieve my goal of making a wireless charger that has authentication between the transmitter and receiver.Thank you for your time.

Hi, Is there a limit of writings/erasings for the few times programmable memory of STWBC86?How many times should I expect? Best

Hi Once I send an EPT from the receiver device, STEVAL-WBC86TX disables its output, but after a few seconds it restarts automatically, even disabling repinging on the registers. The receiver device, once it sends the EPT command, it should shutdown itself and remain off. But what happens is that it reinitializes after a few seconds, as like the transmitter was starting transmitting again, waking the receiver device up. I have tried to disable repings.Viewing the chart, it can be seeing that the output voltage starts decreasing after the EPT command from the receiver. But as soon it gets 0 volts, it instantaneously rises to 5V again. Is there a way to avoid the transmitter to return transmitting after the EPT? Thanks

Hi I cant figure out which is the correct Diode. It was mounted in a Charging (12/24V DC input) device for ADALIT Firefighter Light .  Thanks for your Help

Hi, I'm new with STM microcontrollers. I have several years programming Microchip PIC and develops with this other brand.I want to start a project with this Brand STM, then I bought a Nucleo F411. With this one I tried some examples an all worked fine. Then I bought an STEVAL-CTM011V1A and STEVAL-CTM012V1A to evaluete the Motor Control, I need to decide Driver, Controller, Power, etc.With this board I purchased the suggested STLINK-V3 programmer with the isolator accessory. Could someone help me explain how I program the STEVAL board with the STLINK? There isn't much explanation for that, I've been searching and can't find an answer.While I have experience programming other things, I can't figure this out.I would appreciate the help.Greetings.

HELLO ,  DO   YOU  HAVE A   DATASHEET  FOR   L99PCU3R  .WE BUY FOROM   onepcba 

Dear Sir/Madam,   We are planning to use this SCTHS300N75G3AG Sic MOSFET In our design.   We are not having any clarity on this component regarding to how much Copper thickness is required for this component and how to solder this component on the PCB and how we place Heat sink and all those details we need to know. Please provide the information.