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Forum board changes

Dear community member, The “Analog and audio” topic is no longer supported on the ST community. The legacy content is available only by the read-only basis. If you have any requests regarding "Analog and audio”  topics, check the alternative support ...

N channel MOSFET (part NO STP28N65M2)

HI, I am using ST mosfet (part NO STP28N65M2) in High input AC voltage limiting circuit (as per AN2652) where Q2 MOSFET is STP28N65M2. and D3 diode is 6.8V zener.The product was operative from 2 month. and After that i found that MOSFET was open.on D...

MShar.0 by Associate
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SCR TN22-1500T HOLDING CURRENT VALUE IS FOUND TO BE MUCH LESS THAN THE VALUE GIVEN IN THE SPEC DATASHEET. I AM GETTING THE HOLDING CURRENT OF ONLY 26MA WITH THIS SCR, INSTEAD OF 175MA MINIMUM . WHAT CAN BE THE REASON FOR THIS?

I HAVE USED IT IN A TEST CIRCUIT TO CHECK /VERIFY ITS SPECS.APPLIED VOLTAGE ACROSS ANODE/CATHODE IS 13.2 V DC.GATE TRIGGER VOLT IS 1.6V DC +SCR LOAD CURRENT IS 26MA. UNDER THIS CONDITION, THE SCR IS GETTING LATCHED & HOLDING ON EVEN WITHNO GATE IN...

AMAHA.9 by Associate
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STA515W fault, any suggestion?

Hi dear, I'm trying to set up an audio amplifier with quad half bridge STA515W.I've attached the schematic; is there anything I'm making wrong?Every time I solder in my custom PCB it blows up immediately. Please note that the circuit was designed for...

0690X000006CTLGQA4.png

STA311b PSCorrect question

Posted on November 01, 2014 at 21:15Hello, I'm using a STA311b DSP in my actual Project and I'm wondering how the powersupply correction works? I couldn't find any details about this feature. How do I have to connect the ADC in this case? Do you hav...

External temperature sensor compensation for STPM33TR .

Hi,We are planning to use STPM33TR in one of our switch gear product, this ADC has in built temperature compensation, and we wanted to have temperature compensation for line voltage channel should be done from external temperature sensor (far away in...

PBhua by Associate
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Audio amplifier and audio codec in a single IC with USB interface

I want choose a part which has audio codec and audio amplifier in a single IC. It should support USB interface. The amplifier(chip) output is given to a speaker. It should support 3-5V supply range.Note: Speaker consume power in the range 2-4W     Sp...

NShet by Associate
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would you recommend Timer With Watchdog product?

Hello!This is a manufacturer of PLC MODEM in Korea. My name is David Ko.Part number - TPL5010 (TI: Texas Instruments, http://www.ti.com/product/TPL5010) is what we are using IC.In 2018, our expected require number of ICs are 600,000. I would like to ...

DKo.15 by Associate
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STA350BW ZIPPER NOISE OCCURS WHILE TUNING VOLUME

I am using the STA350BW​. While I tried to change the output gains by writing register 0x07, a noise showed up. I found that it is something relative to DRC and when the DRC is enabled, ZCE seems not work.How can I eliminate the zipper noise while tu...

RWENG by Associate
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