Power management

STC3100 VCC to GND short

Hi, I designed battery powered circuit using STC3100 as battery monitoring. I started soldering the prototype and it appears that there is a short between VCC Pin and GND. (Short seen with a multimeter, I did not connect the battery, so I dont expect...

Hi, I'm looking for the solution that can take 5V solar panel input and charge 4.2V lithium battery.

Hi,I'm looking for the solution that can take 5V solar panel input and charge 4.2V lithium battery. I also need to be able to provide the power to the rest of the system even when the battery is not connected. I was looking at SPV1050 IC but I'm not ...

Using ADC3 inputs for current sensing with Motor Control Workbench 5.2.0

Due to a number of hardware constraints, I need to specify ADC3 for the phase current, bus voltage and temperature feedback for my ST Motor Control Workbench 5.2.0 project for a custom brushless control board. However, I don't see way of specifying ...

I'm designing a 3kW PFC using the STRNGPF01. Everything is OK up to 1450W, but when a test it with a 2200W load, the voltage regulation is bad. I get around 430V instead of 400V, 1.07V measured on the voltage divider. Does anybody observe the same?

Information and waveform plots missing for L9758 datasheet

Hi,Can we have some more data for L9758? Datasheet provides very less information. Typical application schematic (external components values/part numbers)Typical performance characteristicsStart-up, efficiency, shutdown, load and line transients wave...

BQ25120 SYSout voltage return to default value after a few sec of configuration via I2c

BQ25120 SYSout voltage return to default value after a few sec of configuration via I2c.Observation: The SYSout voltage won't drop if we constantly read the system register(0x06) valuevia I2cHere is our register configuration.#define BQ25120_SLAVE_A...

Information and waveforms plot missing in L9945 Datasheet

Hi,Can we have some more data for L9945? Datasheet provides very less information. Some timing waveforms for all 8 channels(or may be only one channel, which can be replicated for the other 7 channels). Functional block diagramTypical application sch...

Chip markings on the STSPIN32F0A

I recently purchased these from element14: https://in.element14.com/webapp/wcs/stores/servlet/ProductDisplay?catalogId=10001&langId=91&urlRequestType=Base&partNumber=2797963&storeId=10186.The ones I got show this as the chip marking: https://i.imgur....

Resistor guidelines for LDL212 adjustable

Have specified LDL212 adjustable regulator in new device. Very limited information in the datasheet for selecting the R1 and R2 values. Assistance appreciated. Target VOUT is 3.6VThanks in advance

Currently I am using "STEVAL-SPIN3202" with "STSW-SPIN3202" to drive a 12V/30W, 16-pole BLDC motor by sensorless control.

However, when I pressed the button USER1 on "STEVAL-SPIN3202", the rotor spun for couple turns and then stalled. I did it several times, but got the same results. I have checked p.50 of UM2310, but haven't got the motor running. What are possibilitoe...