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
L9907 SPI issue
Hi,I'm configuring a L9907 Driver IC using a STM32 controller. The controller is sending 0xEAAA to the driver IC, however the driver IC is not responding to the input. The MISO pin is flat at 0.Kindly help me resolve this issue
STWBC86 coil driver rise and fall time
Hello, is there any way to adjust the rise and fall time of the coil driver on the STWBC86? The observed rise and fall times are currently 3-4ns, but I am looking for ways to extend them to 70ns+ due to excessive emissions with my product.Thank you!
Resolved! droput voltage for LDL1117
I just bought 10 pcs of LDL1117S33R which i plan to use them to power 3.3V modules form a 4V regulated source.According to the data sheet the typical dropout is 350mV and max is 600mV @1.2A. My module consumes less than 500mA, so i expect to have eno...
24 Volt 10 Amp power supply using L6566B (Multi-mode controller for SMPS)
Hello St community, I am designing a 24 Volt 10 amp power supply. Could you please review this design. @STM Community https://eds.st.com/acdc-qr/?msg=%7B%22data%22%3A%7B%22application%22%3A%22acdc_qr_html%22%2C%22specs%22%3A%7B%22ic%22%3A%22l6566b%...
Wireless power transfer to rotating collector
(Split from: https://community.st.com/t5/power-management/induction-cooktop/m-p/731743) Hi everyone,I am wondering if anybody can help on an improper use of the induction cooktop .I've received an ST email featuring the STEVAL-KITXCB and it is very i...
STUSB4761 - low level input voltage for I2C not compliante to spec?
Hi,the maximum I2C input low voltage is stated as 0,35V for the STUSB4761.Is this a typo?Because in NXP I2C spec this level is stated as 0,3VDD We are using a PCA9516 I2C Multiplexer (0,5V Low) and observe massive connection failures with STUSB4761. ...
Resolved! Induction Cooktop
Hi I'm looking for application note and design sources for STEVAL-KITXCB -Induction cooker Please share if anyone have this . Thanks
Resolved! Start up L6981(C33) problems
I'm using the L6981C33DR bug converter to convert 24V (from an SDR-120-24 power supply) down to 3.3V. However, I've had instances where the regulator overheats and "exploaded".The circuit only needs to supply around 100mA at startup, so the current d...
Issue with STUSB1700 Negotiating BMS with SYNC
Hello,I am currently integrating the STUSB1700 into a custom circuit board design. However, I am facing an issue where the STUSB1700 is unable to negotiate the Battery Management System (BMS) with the SYNC protocol.To provide more context:The Saleae ...
STWBC2-HP Qi transmitter and CC Handling with Macbook Pro M1 and Mac Mini while using USB data lines
We are developing a wireless charger with additional wireless-to-USB gateway functionality. We have a design where we use the STWB2-HP as a wireless power transmitter - works fine most of the time. In parallel, we implemented an ESP32-S3 with BT and ...
