TLE7209-3Raum vs TLE7209-2R (Full H-bridge DC stepper controller in enginees)

[Polar]

Dear all,

I would like to ask you wether I can use the component TLE7209-3Raum instead of TLE7209-2R ? I had a look at tbe specifications and the only difference seems to be that 3R has a larger output current than the 2R. (These IC's are used to control qas ventitile in benzin cars, like, for example, Peugeot 206).

Thank you for your help,
Polar

https://www.infineon.com/cms/en/product/power/motor-control-ics/brushed-dc-motor-driver-ics/integrat...

[Xiangrui]

Hi Polar,

TLE7209-2R is already not recommended for new design. TLE7209-3R has better performance than TLE7209-2R.

Another difference is that TLE7209-3R saves a Pin for internal charge pump.

Best regards,

Xiangrui

[Polar]

Thank you very much Xiangrui for your prompt reply! So, it means that I can replace the damaged TLE7209-2R in my car 'sECU with a TLE7209-3R. Right?

Thanks a lot for your advice! 

[Polar]

Yet, another question: if I substitute the damaged 2R with a new 3R, should I connect the pin #4 in 3R (like with 2R) or should I leave #4 unconnected in 3R?

Thanks again!

[Xiangrui]

Hi,

please let Pin 4 open if you use TLE7209-3R.

However, if you are not designing new product. You can still replace the damaged TLE7209-2R with a new one. 

Although, TLE7209-3R has enhanced performance compared with TLE7209-2R. It is better to do reliability test, if you are modifying an old system.

BR,

Xiangrui

[Polar]

Dear Xiangrui,

While replacing the damaged 2R with a new 3R in an OLD SYSTEM, should the pin #4 be connected or left non-connected? Sorry for bodering you and thank you very much in advance. 

Yours,

Polar

[Xiangrui · Accepted solution]

Hi Polar,

It' OK. Feel free to post your question if you have something unclear with our product.

Here is the diagram on datasheet. For NC Pin, you can let it floating (non-connected).

BR,

Xiangrui

[Polar]

THANKS!