Power management

STM6904T Pullup to RST

Hi,We are using STM6904TWEDS6F. But we are confused with the open-drain status of the RST pin. The pin description states RST is open drain output. But in the AC/DC parameter list of the datasheet specifies the RST w.r.t. VCC. Is it necessary to conn...

I am seeking the parts which is included the function of Wireless charger with NFC Antenna. Do you have this kind of product?

Viper16LD problem

Hello,We are facing a problem with the use of Viper16LD.My schemtic is like following: We already produce over 100 board without problem.Now, on a new batch, we have a problem.The input vlotage named "DCBus" start at 220*1.41 = 325V.With that, Viper ...

Documentation typo. L6474 Programming Manual DoclD022529 Rev A. Table 22 calls Bit 5 EN_TQREG. Table 26 uses TQREG. but calls it "External torque regulation enable. "

IPM thermal issue

Hi ST experts,Would like to check if we are doing the testing of thermal rise on the STGIPQ8C60T, what will be the maximum temperature of the device can be sustained? Does it refer to the Tc in the datasheet~ 100degC?What is the pin of the device for...

I make a board with a L6235PD driver. On a population of 5 controllers, 3 have a problem.... Means that when the Vref is @0V, the motor still running (at low speed, but still running).

 I've certainly a problem with the RC OFF and RC Pulse definition....On RC pulse: 82k / 22nFOn RC OFF: 91k/470pFDo you have an idea to solve my problem??? Thanks for your help.

What's the replacement transistor for STP7NK40ZFP in DPAK package ? It's no longer manufactured.

PWD13F60 failing on dev board, shorted FETs

Hello,We are creating a design using the PWD13F60 and have done some testing with the EVALPWD13F60. We are running the gate driver portion at 12VDC, and the motor voltage up to 200VDC, but starting with lower voltages like 24, then 48, etc. We are ru...

Do I need to use a Freq to Voltage converter for a tacho signal from 4 wire fan?

Hi all,I am using a 4-wire fan supplied by 24V. I was wondering if the tacho output from the fan needs an external timer or a Freq to voltage converter; or can I just use a pull up resistor and connect the tacho signal straight to the input of STM32 ...