SA51709500 - Old H bridge Drive

Thiago Cruz

Other Parts Discussed in Thread: LM1458

Hi to all.

I'm facing some troubles with a frequency inverter and those problems are related to an old component that, I believe, is a H-bridge controller.
Top mark is "62ALENJ SA51709500". However, there's no information about this component on TI's site and I couldn't find any datasheet over the internet.
Any leads about how I can solve this problem?
Thanks in advance.

over 3 years ago

0 LeonardEllis over 3 years ago

TI__Guru 71516 points

Hello Thiago,

Please provide a photo of the device. This will help determine what this is.

Thank you,

~Leonard

0 Thiago Cruz over 3 years ago in reply to LeonardEllis

Prodigy 150 points

Hi Leonard,

First of all, thank you for your interest.

It's identical to this one:

New Refurbished Exchange Repair Texas Instruments Integrated Circuits (IC) SA51709500 Precision Zone

If by any thing you are not able to see the picture, there's a link where i can buy an used one. http://www.precisionzone.net/integrated-circuits-%28ic%29/texas-instruments/sa51709500

0 LeonardEllis over 3 years ago in reply to Thiago Cruz

TI__Guru 71516 points

Thanks very much for the picture, Thiago. On the link you provided, they identify this as as LM1458, but if we use the Part Marking Tool: https://www.ti.com/packaging/docs/partlookup.tsp#divline , it does not relate. I'll keep researching this and keep you posted.

And just another thought, is there any possibility you can get a schematic for the product where this is used?

Regards,

~Leonard

0 Thiago Cruz over 3 years ago in reply to LeonardEllis

Prodigy 150 points

Leonard,

Unfortunately, I don't have any schematic for the product and it's PCB is a 4 layer one so, it's very hard to draw one. But, I'll send you a picture of the identification plate of the product.

Thanks

0 LeonardEllis over 3 years ago in reply to Thiago Cruz

TI__Guru 71516 points

Hello Thiago,

My research has shown that this is a custom device, and as such, information concerning this device can only be disclosed under NDA with the original customer.

The website that you referenced in your previous post indicated this was an LM1458, but that device is only available in a 8-pin package http://www.ti.com/product/LM1458 , and the device you have is 20-pin.

I asked if you had a schematic, not to draw one, but one from the product manufacturer. Having a schematic would most likely clearly identify what the device is, the part number would be indicated on the schematic. Have you tried to get a schematic from GE? I did a quick websearch for the AF300ES and found an operating manual, so I'm thinking there would be a technical manual with a schematic out there.

If I come across any additional information, I will let you know, but for now, nothing further TI can provide.

Good luck in your research,

~Leonard

0 Thiago Cruz over 3 years ago in reply to LeonardEllis

Prodigy 150 points

Ok Leonard.

Thank you so much for your assistance. I'll contact GE but, it'll be easier buy an used piece.

Have a good weekend.

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SA51709500 - Old H bridge Drive