Wireless Charging solution Wiki
This Topic is used for Wireless Charging solution 1.Mcu C drive code: GitHub - STMicroelectronics/STWirelessCharging-C-Drivers: Standard C platform-independent drivers for wireless charging ICs
Power management
Discuss power management solutions. Ask questions and find answers on voltage configurations, short circuit protection, and programming.
Forum Posts
Date Code for LM2903PT
We have received a part from ST Microelectronics. Kindly provide us with the date code and lot code information for the below part number. I have attached images of the received part for your reference.
SOC estimator (coulomb counter / gas gauge) for primary and secondary batteries
I have a product with replaceable battery (1S1P) , that can be changed by the user.User can put primary battery (non-rechargeable) 3,0V or rechargeable battery (3,7V).The rechargeable battery will be charged outside of the product. So the battery wi...
Resolved! Spv1050 battery charging issue
I have made a custom pcb of STEVAL-ISV019V1 circuit. In that ,we need to charge 3.7v lithium ion battery via USB supply and solar panel. When I connect USB supply or panel voltage as input voltage the complete input voltage is coming in the bat...
SP1050
Hello,We are using the SPV1050 charger for our device, and we are planning to certify our device with FCC standards, so can you please advise some recommendations on the PCB design to fit the FCC requirements? Also, someone recommend me to use a se...
Resolved! LED2000 shorts itself when attempting to use the DIM pin
Today I received several of my LED2000DR based LED boards. Everything worked flawlessly when using the chip as a plain LED driver. However, after trying to feed a PWM signal into the DIM pin the dimming worked for about a second but then the board we...
Negative Triac supply
Hi, I have a requirement to drive a Triac from the MCU powered by a DC/DC converter. The AC supply is typ 24 VAC @ Rc terminal with respect to C terminal. The Triac is to be driven as attached. The MCU GND should always regulated at Rc - 3V3. The MC...
Resolved! How to calculate K factor in VND7050AJ High Side Driver
Hi How to calculate k factor in VND7050AJ High side driver for current measurement?Regards,Nandish Jasani.
Suggestions to me use a 6V panel with SPV1040
Hi Team,I am looking to use a solar panel which gives 6v and I want to use the spv1040 mppt converter.What would you recommend I use with spv1040 as it has a max input of 5.5v. Is using a buck converter before the SPV1040 recommended?Regards,Nilav
Couldn't configure IDs of L9963e-MCU Eval KIT
hello. I operated the EV KIT with the STSW-L9963E GUI, and checked until the MCU was connected. After that press the "Configure IDs" button and the ACK LED will change from green to red. And then there is no communication. I ran the GUI as written in...
L6470 Wrong final position with "Goto" command
I have an issue with the "Goto" command of the L6470 driver.Sometimes (rarely) I send a "Goto" command to the driver with an absolute target positon, and the driver goes a few steps (1 to 3) further.The driver is set to work in 1/128 steps.After each...
