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
STUSB4710AQ1TR: Clicking Noise and Large Voltage Ripple at No Load
Hello,I am using the STUSB4710AQ1TR to charge some USB-C devices at the default 45W. I am operating in a mode that's only charging (no data communication). To do this, I used the recommended application schematic provided in the datasheet. My input v...
Resolved! DocID023432 Rev 7 (September 2021) - The document may have an information error
If the absolute maximum input value is 20V, how can there be a graph with 32V input value? :thinking_face:
Resolved! Tantalum filter caps for LD1086?
The datasheet for the LD1086 specifies that I should use a 10 uF capacitor to filter the input/output of the device. The datasheet schematic for a typical application shows polarized filter caps. But the datasheet doesn't specify what type of capacit...
Viper 22L
Hi, I need to know whether do you use Viper 22L component? Please respond......
Resolved! STPMIC1 and ST-Link
Hello,Since I'm trying to design a relatively simple and mainly small STM32MP157FAD1 board (MPU, DDR3L, eMMC, WiFi+BT, microphone, speaker and display), something like a wearable motherboard, I'd like to ask if it would be possible to power the whole...
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...
