Author Topic: ESM0601 datasheet  (Read 2503 times)

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Offline salviador

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ESM0601 datasheet
« on: May 14, 2017, 11:52:19 am »
I can't find this datasheet for STmicroelectronics ESM0601
Why?
Thi IC is mounted in Blue&me fiat car

I would like to know what this component does, maybe is DC/DC converter

« Last Edit: May 14, 2017, 11:58:27 am by salviador »
 

Offline mgregor

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Re: ESM0601 datasheet
« Reply #1 on: October 19, 2019, 10:32:58 am »
I have same question. My B&M stopped working and comunicating with CAN. When I plug in module to car this chip start to heat up.
Did you fix your module?
 
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Offline fzabkar

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Re: ESM0601 datasheet
« Reply #2 on: October 19, 2019, 09:08:46 pm »
It does look like a triple switchmode DC-DC converter (plus LDOs ?):

https://www.elektroda.pl/rtvforum/topic3623737.html





If you trace the circuit, you may be able to substitute your own converter(s).

You should be able to determine the PCB's onboard voltage requirements by referring to the datasheets for the ICs.

For example, there is a Micron NAND flash, p/n NW140 (MT29F1G08ABCHC-ET:C):

https://www.micron.com/support/tools-and-utilities/fbga?fbga=nw140

This is a 1.8V part:
https://www.infinite-electronic.ru/pdf/9ec2514946/MT29F1G08ABCHC-ET-C-TR.pdf

The ARM MCU's core probably runs off 1.2V or less.

The D9JVC part is a 1.8V SDRAM (MT48H16M16LFBF-75 L IT:G):
https://www.micron.com/support/tools-and-utilities/fbga?fbga=d9jvc

https://www.datasheet.directory/index.php?title=Special:PdfViewer&url=https%3A%2F%2Fdatasheet.iiic.cc%2Fdatasheets-0%2Fmicron_technology%2FMT48H16M16LFBF-6_H.pdf

The AIC23BI is a TLV320AIC23B Stereo Audio CODEC, 8-to 96-KHz, With Integrated Headphone Amplifier:
www.ti.com/lit/ds/symlink/tlv320aic23b.pdf

It requires a 1.42V – 3.6V Core Digital Supply and a 2.7V – 3.6V Buffer and Analog Supply. Therefore I suspect that one of the converters generates 3.3V.

Edit:

Could it be that the ESM0601 is heating up as a result of a current overload? Can you test for shorts to ground at each of the filter capacitors on the Vouts?

The ESM0601 would probably incorporate some kind of power control so that the supplies are sequenced correctly. Normally the MCU's Vio rail (1.8V) would need to come up before its Vcore.


Edit #2:

It's a totally different chip, but it might give some insight into the design philosophy behind the ESM0601:
https://www.st.com/resource/en/datasheet/l5962.pdf
« Last Edit: October 19, 2019, 10:20:35 pm by fzabkar »
 

Offline mgregor

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Re: ESM0601 datasheet
« Reply #3 on: October 20, 2019, 05:35:50 pm »
Hey! Thx for info. That's my topic on elektroda forum :-)

"Can you test for shorts to ground at each of the filter capacitors on the Vouts?"

Are you talking about this 3 big capacitors? Is there any difference between which pins I will check is there shorts to ground on capacitors?
 

Offline fzabkar

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Re: ESM0601 datasheet
« Reply #4 on: October 20, 2019, 09:27:59 pm »
Just measure the resistances of each of the 3 large capacitors.
 

Offline mgregor

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Re: ESM0601 datasheet
« Reply #5 on: October 21, 2019, 11:47:53 am »
Thx for tip. Today I will solder them out and measure.
 

Offline fzabkar

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Re: ESM0601 datasheet
« Reply #6 on: October 21, 2019, 04:56:09 pm »
Measure them in-circuit. In this way you will be measuring the resistances of the loads on each of the 3 supplies.
 

Offline mgregor

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Re: ESM0601 datasheet
« Reply #7 on: October 22, 2019, 12:30:50 pm »
You mean that I shouldn't solder them out or measure them with resistor in series after solder out?
« Last Edit: October 22, 2019, 12:34:28 pm by mgregor »
 

Offline fzabkar

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Re: ESM0601 datasheet
« Reply #8 on: October 22, 2019, 09:12:20 pm »
You mean that I shouldn't solder them out or measure them with resistor in series after solder out?
Yes.

You need to determine whether the IC is getting hot because it is bad, or because one of its loads is shorted.
 

Offline mgregor

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Re: ESM0601 datasheet
« Reply #9 on: October 23, 2019, 06:56:18 pm »
I5T 1000 25 - resistance rises from ~1.5 kohm -> infinity
i3t 330 35 - resistance rises from ~1 kohm -> infinity
i3t 330 35 - resistance rises from ~1.5 kohm -> infinity

Coil above the capacitors (with blue ring) have all four pins shorted to themselves. Is that ok?


« Last Edit: October 23, 2019, 07:02:04 pm by mgregor »
 

Offline fzabkar

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Re: ESM0601 datasheet
« Reply #10 on: October 23, 2019, 07:20:24 pm »
The coils look OK. It does appear that the chip is bad.
 


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