"Ning Hao",GPE.Try www.datasheetarchive.com. if you are talking about TA7317.
TA7317P
This IC is a protect circuit for OCL power amplifier and speaker.
I use it in class AB amplifier. This is a subwoofer model.
The replacement IC must exist some abilities with over current detecting circuit, short circuit protect,DC voltage detecting circuit, muting circuit,relay driver circuit, operation by dual power supply.
Thanks all attention!
This IC is a protect circuit for OCL power amplifier and speaker.
I use it in class AB amplifier. This is a subwoofer model.
The replacement IC must exist some abilities with over current detecting circuit, short circuit protect,DC voltage detecting circuit, muting circuit,relay driver circuit, operation by dual power supply.
Thanks all attention!
Not sure about pin for pin replacement, but these are for exactly the same purpose:
1. µPC1237H
2. HA12002
Datasheet(s) at DatasheetsForFree or somewhere else.
Hope this helps.
Regards,
Nick
1. µPC1237H
2. HA12002
Datasheet(s) at DatasheetsForFree or somewhere else.
Hope this helps.
Regards,
Nick
Re: Thanks for your all help!
You just did.GPE said:I wish to make friends with persons love audio and electron all of the world.
I'm still unsure of your intentions. Yes, those old chips are being or have been phased out, but they are still available and probably will continue to be available for some time.
I'm unaware of any modern replacement though. If that is such a huge concern, why not design with discrete circuitry?
I'm unaware of any modern replacement though. If that is such a huge concern, why not design with discrete circuitry?
I could be wrong, but it sounds like the existing design is suited to the original chip and they want a source of the chip for continued production use. They don't want to redesign the boards and make the adjustment to a different circuit. I don't think he wants to replace the chip in a particular amp, It sounds like there will be an ongoing need for them. So a pin for pin drop in is the idea.
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