Author Topic: Can anyone ID this chip - from EV motor driver  (Read 1345 times)

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Online mikeselectricstuffTopic starter

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Can anyone ID this chip - from EV motor driver
« on: September 05, 2019, 05:11:19 pm »

Can anyone ID this chip from an electric car motor controller. 
Pretty sure it's power management/supervisory, probably at least two switchmode controllers inside.
GND pins 5,6 ( probably others)
Pins 26 & 42 drive Buck MOSFETs
QFN44
Numbers:
A2C43451
ATIC91C2
TI 29K
A91 G4
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Offline rx8pilot

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Re: Can anyone ID this chip - from EV motor driver
« Reply #1 on: September 05, 2019, 06:12:24 pm »
Is this part of an automotive system?
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Offline mc172

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Re: Can anyone ID this chip - from EV motor driver
« Reply #2 on: September 05, 2019, 06:22:23 pm »
It's Texas, but there's nothing on their website or anywhere on Google. You might have to ask them directly.

https://www.digipart.com/part/A2C43451
 

Online mikeselectricstuffTopic starter

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Re: Can anyone ID this chip - from EV motor driver
« Reply #3 on: September 05, 2019, 06:23:57 pm »
Is this part of an automotive system?
Yes- Renault Zoe traction motor controller
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Offline Towger

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Re: Can anyone ID this chip - from EV motor driver
« Reply #4 on: September 06, 2019, 04:00:24 pm »
So the green machine is getting a teardown :-)
 

Offline rx8pilot

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Re: Can anyone ID this chip - from EV motor driver
« Reply #5 on: September 06, 2019, 04:33:04 pm »
I struck out looking for any data on this one.
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Offline SiliconWizard

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Re: Can anyone ID this chip - from EV motor driver
« Reply #6 on: September 06, 2019, 05:22:16 pm »
It's available on Aliexpress. ;D
https://www.aliexpress.com/i/32810464998.html

And there too: https://www.auto-chips.com/a2c43451-atic91c2-p2283.html
"commonly used vulnerable chip for automotive ecu"  :-DD

https://www.jotrin.com/product/parts/A2C43451

Definitely seems to be a TI part, but it's nowhere to be found on TI's website (and some resellers mark it as obsolete... if so, nice job Renault!  :-* )
So yeah, either obsolete or really confidential stuff... Good luck finding a datasheet.
 

Offline mc172

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Re: Can anyone ID this chip - from EV motor driver
« Reply #7 on: September 06, 2019, 05:56:37 pm »

https://www.jotrin.com/product/parts/A2C43451


This link does seem to have a datasheet. I registered and the Javascript ends up taking you here: http://www.ti.com/?filetype=datasheet&kw=A2C43451

...which is dead.
 


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