Anyone using the Supertex HV5523?

[Nigel Walker]

I was thinking about using the HV5523 to drive some ZM1040 nixies as these would seem ideal - 32 channels of high voltage drive capability and serial data in. I just wondered if anyone else had used these devices and if so, were there any issues?

 

 

[Grahame Marsh]

Nigel, I have used the 5522 without issue. The 5523 appears to be a "better" device with higher clock frequency and 5V logic.  I  use the blanking input on the 5522 and a PWM output from the uC for dimming. I have used th 5522 with 5V logic directly and 3V3 logic (from a raspberrypi) via a level shifter. Finally, I've chained 3 together to give 96 HV outputs. I normally use the SPI output rather than bit bang. So, not quite your question answered but I would have no immediate concerns.
Grahame

On 15/10/2014 09:06, Nigel Walker wrote:

[Nigel Walker]

Thanks for the quick reply, Grahame. I will be driving mine from a PIC. I might do a layout which has the PIC on the board, but only populate one of the boards with the PIC. using these devices sure reduces the number of IOs needed.

 

Nigel.

 

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[Spencer]

For another option, I am just starting to work with the HV507, 64 channel 300V. You can get them for $4.40 a piece on aliexpress.

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From: Nigel Walker <doga...@googlemail.com>
To: neoni...@googlegroups.com
Sent: Wednesday, October 15, 2014 4:07 AM

Subject: Re: [neonixie-l] Anyone using the Supertex HV5523?

Thanks for the quick reply, Grahame. I will be driving mine from a PIC. I might do a layout which has the PIC on the board, but only populate one of the boards with the PIC. using these devices sure reduces the number of IOs needed.

 

Nigel.

 

----- Original Message -----

From: Grahame Marsh

To: neoni...@googlegroups.com

Sent: Wednesday, October 15, 2014 9:26 AM

Subject: Re: [neonixie-l] Anyone using the Supertex HV5523?

Nigel, I have used the 5522 without issue. The 5523 appears to be a "better" device with higher clock frequency and 5V logic.  I  use the blanking input on the 5522 and a PWM output from the uC for dimming. I have used th 5522 with 5V logic directly and 3V3 logic (from a raspberrypi) via a level shifter. Finally, I've chained 3 together to give 96 HV outputs. I normally use the SPI output rather than bit bang. So, not quite your question answered but I would have no immediate concerns.
Grahame


On 15/10/2014 09:06, Nigel Walker wrote:

I was thinking about using the HV5523 to drive some ZM1040 nixies as these would seem ideal - 32 channels of high voltage drive capability and serial data in. I just wondered if anyone else had used these devices and if so, were there any issues?

 

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[Nick]

People may or may not know that Supertex were recently bought by Microchip (April 2014)...

Nick 

[Nigel Walker]

Thanks for the suggestion. I can't seem to find them on Aliexpress but Digikey do them.

To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/1413374917.62310.YahooMailNeo%40web120904.mail.ne1.yahoo.com.

[Quixotic Nixotic]

On 15 Oct 2014, at 13:24, Nick wrote:

> People may or may not know that Supertex were recently bought by Microchip (April 2014)...
>
> Nick

Good. Free samples all round then :)

John

[Nick]

On Wednesday, 15 October 2014 13:28:35 UTC+1, Nixcited delighted wrote:

Good. Free samples all round then :)

John

Heh. You got the hidden sub-text then :)

Supertex make some great chips - I use the LR8 high voltage linear 3-terminal regulator in some valve amp designs - 13.2V - 450V input voltage, Adjustable 1.20V - 440V output with current and temperature limiting for less than 1 USD each... http://www.microchip.com/wwwproducts/Devices.aspx?product=LR8

Mad as a box of frogs!

Nick

[Spencer]

Thats what I hate about aliexpress's website.

Search for HV507PG and you will get a bunch of listings, the one I was talking about is this one, HV507PG

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From: Nigel Walker <doga...@googlemail.com>
To: neoni...@googlegroups.com

Sent: Wednesday, October 15, 2014 7:25 AM

To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/386F1BAD44B348E78202B4BA6F90DB40%40Vostro400.