Power management

How is this part marked, LD2985BM33R. What is the required marking code? We see this on the part, "B533". Con you confirm that this is correct marking code?

I2C address map for STUSB4500?

HiWhich registers can be read/write on the STUSB4500? What are the register addresses?The datasheet only mentions the NVM parameters and their default values, how do you set them via i2c?ThanksJM

Hello, I am working on STC3117 for voltage and SoC detection. So far I am able to get voltage correctly but current values and SoC are wrong. Please check configuration if anything wrong.

Configurations are as followI am using default OCV table and 660mAh battery (4.2v max) with <70 mOhm internal impedancefirst OCV value = 7788REG_CTRLvBattTWI_Write(1, BATT_GAUGE_ADD, REG_CTRL, 0x02);REG_MODEvBattTWI_Write(1, BATT_GAUGE_ADD, REG_MODE,...

BTA12-600B for Dimming of 240V Dimmer Light

We Are Using BTA12-600B for Dimming of 240V Dimmer Light.We Want to Know the Temperature Vs Ampere Graph so We can judge that if we pass 3A through the BTA12-600B then how much heat will dissipate and how much temperature of BTA12-600B. I Am Sending ...

STNS01: LDO Output protection

Having 2 power rails, 3V3 and 5V while STNS01 generates 3V3 (well, 3V1 to be exact) from 5V input (or battery), is it possible to feed 3V3 externally when STNS01 is shutdown? Is STSN01's LDO output reverse protected? Or will we need an ideal diode to...

L9132 with datasheet where to buy

Repair ECU 7SM Magnetic Marelli Need more Detail this chipThanksBest Regards

Help to identify PS

Hi all,Is anybody known something about this power supply? What I know is:There is an ST logo on the board.Input: ~240VACOutput: 12VDCusing 1NK60Z and TL431 in TO92 packageThere are four component blown out. One of the blown out 3 pin component marki...

What could cause the STC3115 to ACK data but not save it to memory?

I'm using the STC3115 driver provided by ST and am having a strange issue with the STC3115 on a custom board. I've hooked up an o-cope and am monitoring the data being sent over I2C. When I write any of the registers in the STC3115 it ACKs the data b...

Why STNS01 does not switch to the battery when the chip is only connected to a battery?

Hello,I am using a STNS01 in my circuit for the power management. The problem is when I only have a charged battery (4.1 v) connected to the BAT pin, it does not switch to the battery voltage. As if the chip is in shutdown mode (I do not know why, th...

L6227Q_VREF and OCD implement

I have PWM to control motor at each channel. One is limited by 0.3A and the other one is limited by 0.1A by voltage divider reference to 5V. By using this approach, as my understand I can not reach to OCD feature because the current can not reach to...