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tech / sci.electronics.design / slick gate driver

SubjectAuthor
* slick gate driverJohn Larkin
+* Re: slick gate driverboB
|`- Re: slick gate driverJohn Larkin
+* Re: slick gate driverwhit3rd
|+- Re: slick gate driverFred Bloggs
|`* Re: slick gate driverJohn Larkin
| +* Re: slick gate driverboB
| |`* Re: slick gate driverJohn Walliker
| | `- Re: slick gate driverboB
| `* Re: slick gate driverlegg
|  `* Re: slick gate driverboB
|   `* Re: slick gate driverbitrex
|    `* Re: slick gate driverbitrex
|     `* Re: slick gate driverboB
|      `* Re: slick gate driverwhit3rd
|       `* Re: slick gate driverKlaus Vestergaard Kragelund
|        `- Re: slick gate driverMega WeedMarket
`* Re: slick gate driverFred Bloggs
 +* Re: slick gate driverLasse Langwadt Christensen
 |`* Re: slick gate driverFred Bloggs
 | `* Re: slick gate driverLasse Langwadt Christensen
 |  `* Re: slick gate driverFred Bloggs
 |   `* Re: slick gate driverLasse Langwadt Christensen
 |    `* Re: slick gate driverFred Bloggs
 |     `- Re: slick gate driverboB
 `- Re: slick gate driverJohn Larkin

Pages:12
slick gate driver

<t2ffph1b3m5p7t3uesm0euj5cfn7kphka8@4ax.com>

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From: jlar...@highland_atwork_technology.com (John Larkin)
Newsgroups: sci.electronics.design
Subject: slick gate driver
Date: Mon, 12 Dec 2022 15:56:47 -0800
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 by: John Larkin - Mon, 12 Dec 2022 23:56 UTC

https://www.ti.com/product/TPSI3050-Q1

Very cool, but costs $3 and you can't get them.

Re: slick gate driver

<qejfphtqa9h3n23e4p12oc7gp74at9ie6l@4ax.com>

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From: boB...@K7IQ.com (boB)
Newsgroups: sci.electronics.design
Subject: Re: slick gate driver
Date: Mon, 12 Dec 2022 17:01:17 -0800
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 by: boB - Tue, 13 Dec 2022 01:01 UTC

On Mon, 12 Dec 2022 15:56:47 -0800, John Larkin
<jlarkin@highland_atwork_technology.com> wrote:

>
>https://www.ti.com/product/TPSI3050-Q1
>
>Very cool, but costs $3 and you can't get them.

Very cool in that it has an isolated 10V output supply !

Too bad that it is only 10V drive though.

Also too bad that you can't get them !

boB

Re: slick gate driver

<5f29d642-996d-4ec9-9df7-93d88ef965bbn@googlegroups.com>

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Subject: Re: slick gate driver
From: whit...@gmail.com (whit3rd)
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 by: whit3rd - Tue, 13 Dec 2022 05:10 UTC

On Monday, December 12, 2022 at 3:57:01 PM UTC-8, John Larkin wrote:
> https://www.ti.com/product/TPSI3050-Q1
>
> Very cool, but costs $3 and you can't get them.

And if you could get 'em, it has a 100A rating; how are you gonna attach
the busbars? What do you use as a protective fuse?

Re: slick gate driver

<2b58bc51-b43b-4e67-8c59-110329c95e09n@googlegroups.com>

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Subject: Re: slick gate driver
From: bloggs.f...@gmail.com (Fred Bloggs)
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 by: Fred Bloggs - Tue, 13 Dec 2022 14:51 UTC

On Tuesday, December 13, 2022 at 7:33:56 AM UTC-5, bill....@ieee.org wrote:
> On Tuesday, December 13, 2022 at 4:10:18 PM UTC+11, whit3rd wrote:
> > On Monday, December 12, 2022 at 3:57:01 PM UTC-8, John Larkin wrote:
> > > https://www.ti.com/product/TPSI3050-Q1
> > >
> > > Very cool, but costs $3 and you can't get them.
> >
> > And if you could get 'em, it has a 100A rating; how are you gonna attach the busbars? What do you use as a protective fuse?
> Where is the data sheet is this 100A rating? I went through it and couldn't find it.

It's on the part summary page, not the datasheet which says 3-4 A. It's a marketing lead-in straight out of the popular:
" How to get people to see what they're looking for, even if it's completely wrong."

>
> It does seem to be designed to drive big MOSFETs and can also drive SCRs and TRIACs. Those can handle a lot of current and might need bus-bars.

Datasheet shows it controlling a back-to-back MOSFET power switch.

>
> The data sheet does talk about Kelvin connections.
>
> --
> Bill Sloman, Sydney

Re: slick gate driver

<ji6hphtljht1esq7lgnibl0hvtktbj8na7@4ax.com>

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From: jlar...@highlandSNIPMEtechnology.com (John Larkin)
Newsgroups: sci.electronics.design
Subject: Re: slick gate driver
Date: Tue, 13 Dec 2022 07:31:34 -0800
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 by: John Larkin - Tue, 13 Dec 2022 15:31 UTC

On Mon, 12 Dec 2022 21:10:12 -0800 (PST), whit3rd <whit3rd@gmail.com>
wrote:

>On Monday, December 12, 2022 at 3:57:01 PM UTC-8, John Larkin wrote:
>> https://www.ti.com/product/TPSI3050-Q1
>>
>> Very cool, but costs $3 and you can't get them.
>
>
>And if you could get 'em, it has a 100A rating; how are you gonna attach
>the busbars? What do you use as a protective fuse?

It's a gate diver in an SO8 package.

Repeat: GATE DRIVER.

I'd use them right now if we can be assured of delivery.

Re: slick gate driver

<80phphlfaiq628l3ivfr8b94ehfsip55bc@4ax.com>

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From: jlar...@highland_atwork_technology.com (John Larkin)
Newsgroups: sci.electronics.design
Subject: Re: slick gate driver
Date: Tue, 13 Dec 2022 12:44:27 -0800
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 by: John Larkin - Tue, 13 Dec 2022 20:44 UTC

On Mon, 12 Dec 2022 17:01:17 -0800, boB <boB@K7IQ.com> wrote:

>On Mon, 12 Dec 2022 15:56:47 -0800, John Larkin
><jlarkin@highland_atwork_technology.com> wrote:
>
>>
>>https://www.ti.com/product/TPSI3050-Q1
>>
>>Very cool, but costs $3 and you can't get them.
>
>
>Very cool in that it has an isolated 10V output supply !
>
>Too bad that it is only 10V drive though.
>
>Also too bad that you can't get them !
>
>boB

10 volts is enough for most mosfets these days.

Re: slick gate driver

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From: boB...@K7IQ.com (boB)
Newsgroups: sci.electronics.design
Subject: Re: slick gate driver
Date: Tue, 13 Dec 2022 14:19:11 -0800
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 by: boB - Tue, 13 Dec 2022 22:19 UTC

On Tue, 13 Dec 2022 07:31:34 -0800, John Larkin
<jlarkin@highlandSNIPMEtechnology.com> wrote:

>On Mon, 12 Dec 2022 21:10:12 -0800 (PST), whit3rd <whit3rd@gmail.com>
>wrote:
>
>>On Monday, December 12, 2022 at 3:57:01 PM UTC-8, John Larkin wrote:
>>> https://www.ti.com/product/TPSI3050-Q1
>>>
>>> Very cool, but costs $3 and you can't get them.
>>
>>
>>And if you could get 'em, it has a 100A rating; how are you gonna attach
>>the busbars? What do you use as a protective fuse?
>
>It's a gate diver in an SO8 package.
>
>Repeat: GATE DRIVER.
>
>I'd use them right now if we can be assured of delivery.

The link (not spec sheet) in that URL says 100A, John.

It's actually something like 1.5A source and 2A sync.

10V gate drive is enough for a lot of applications but where you need
absolute lowest RdsOn, still wants higher on voltage.

AND if you need negative gate drive too, (which I do), then 10V is
not nearly enough to have full on and a few negative volts Vgs

boB

Re: slick gate driver

<38b18d1c-cd4e-4e74-9c29-4a19e7d0ec40n@googlegroups.com>

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Subject: Re: slick gate driver
From: jrwalli...@gmail.com (John Walliker)
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 by: John Walliker - Wed, 14 Dec 2022 11:51 UTC

On Tuesday, 13 December 2022 at 22:19:19 UTC, boB wrote:
> On Tue, 13 Dec 2022 07:31:34 -0800, John Larkin
> <jla...@highlandSNIPMEtechnology.com> wrote:
>
> >On Mon, 12 Dec 2022 21:10:12 -0800 (PST), whit3rd <whi...@gmail.com>
> >wrote:
> >
> >>On Monday, December 12, 2022 at 3:57:01 PM UTC-8, John Larkin wrote:
> >>> https://www.ti.com/product/TPSI3050-Q1
> >>>
> >>> Very cool, but costs $3 and you can't get them.
> >>
> >>
> >>And if you could get 'em, it has a 100A rating; how are you gonna attach
> >>the busbars? What do you use as a protective fuse?
> >
> >It's a gate diver in an SO8 package.
> >
> >Repeat: GATE DRIVER.
> >
> >I'd use them right now if we can be assured of delivery.
> The link (not spec sheet) in that URL says 100A, John.
>
> It's actually something like 1.5A source and 2A sync.
>
> 10V gate drive is enough for a lot of applications but where you need
> absolute lowest RdsOn, still wants higher on voltage.
>
> AND if you need negative gate drive too, (which I do), then 10V is
> not nearly enough to have full on and a few negative volts Vgs
>
> boB

There is this one with 15V output:
https://www.ti.com/product/TPSI3052-Q1

John

Re: slick gate driver

<016183f2-74fe-4ec0-8098-cdf57f84babfn@googlegroups.com>

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Subject: Re: slick gate driver
From: bloggs.f...@gmail.com (Fred Bloggs)
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 by: Fred Bloggs - Wed, 14 Dec 2022 16:01 UTC

On Monday, December 12, 2022 at 6:57:01 PM UTC-5, John Larkin wrote:
> https://www.ti.com/product/TPSI3050-Q1
>
> Very cool, but costs $3 and you can't get them.

This type of IC is an isolated gate driver, there's absolutely nothing slick or exceptional about it, everyone in the world is making a whole product line of them.

Even a Mouser search returns 495 results, tons of stock:

https://www.mouser.com/c/semiconductors/power-management-ics/gate-drivers/?product=Isolated%20Gate%20Drivers&gclid=CjwKCAiAheacBhB8EiwAItVO24JWa-vYSF5goWUZ6QEYzUR0rsHVJuDS7lT7n7UWmGMTqL2W9nAWJRoCnR4QAvD_BwE

Re: slick gate driver

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Subject: Re: slick gate driver
From: langw...@fonz.dk (Lasse Langwadt Christensen)
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 by: Lasse Langwadt Chris - Wed, 14 Dec 2022 16:18 UTC

onsdag den 14. december 2022 kl. 17.01.10 UTC+1 skrev Fred Bloggs:
> On Monday, December 12, 2022 at 6:57:01 PM UTC-5, John Larkin wrote:
> > https://www.ti.com/product/TPSI3050-Q1
> >
> > Very cool, but costs $3 and you can't get them.
> This type of IC is an isolated gate driver, there's absolutely nothing slick or exceptional about it, everyone in the world is making a whole product line of them.
>
> Even a Mouser search returns 495 results, tons of stock:
>
> https://www.mouser.com/c/semiconductors/power-management-ics/gate-drivers/?product=Isolated%20Gate%20Drivers&gclid=CjwKCAiAheacBhB8EiwAItVO24JWa-vYSF5goWUZ6QEYzUR0rsHVJuDS7lT7n7UWmGMTqL2W9nAWJRoCnR4QAvD_BwE

how many of them with a build in isolated supply?

Re: slick gate driver

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Subject: Re: slick gate driver
From: bloggs.f...@gmail.com (Fred Bloggs)
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 by: Fred Bloggs - Wed, 14 Dec 2022 16:28 UTC

On Wednesday, December 14, 2022 at 11:19:00 AM UTC-5, lang...@fonz.dk wrote:
> onsdag den 14. december 2022 kl. 17.01.10 UTC+1 skrev Fred Bloggs:
> > On Monday, December 12, 2022 at 6:57:01 PM UTC-5, John Larkin wrote:
> > > https://www.ti.com/product/TPSI3050-Q1
> > >
> > > Very cool, but costs $3 and you can't get them.
> > This type of IC is an isolated gate driver, there's absolutely nothing slick or exceptional about it, everyone in the world is making a whole product line of them.
> >
> > Even a Mouser search returns 495 results, tons of stock:
> >
> > https://www.mouser.com/c/semiconductors/power-management-ics/gate-drivers/?product=Isolated%20Gate%20Drivers&gclid=CjwKCAiAheacBhB8EiwAItVO24JWa-vYSF5goWUZ6QEYzUR0rsHVJuDS7lT7n7UWmGMTqL2W9nAWJRoCnR4QAvD_BwE
> how many of them with a build in isolated supply?

Seriously? Probably all of them. Analog Devices has been using magnetically coupled internal power supplies just like that for over 30 years that I know of- mostly for isolated data conversion. Built-in power supply is expected these days, especially for the high voltage power conversion market.

Re: slick gate driver

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Subject: Re: slick gate driver
From: langw...@fonz.dk (Lasse Langwadt Christensen)
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 by: Lasse Langwadt Chris - Wed, 14 Dec 2022 17:15 UTC

onsdag den 14. december 2022 kl. 17.28.06 UTC+1 skrev Fred Bloggs:
> On Wednesday, December 14, 2022 at 11:19:00 AM UTC-5, lang...@fonz.dk wrote:
> > onsdag den 14. december 2022 kl. 17.01.10 UTC+1 skrev Fred Bloggs:
> > > On Monday, December 12, 2022 at 6:57:01 PM UTC-5, John Larkin wrote:
> > > > https://www.ti.com/product/TPSI3050-Q1
> > > >
> > > > Very cool, but costs $3 and you can't get them.
> > > This type of IC is an isolated gate driver, there's absolutely nothing slick or exceptional about it, everyone in the world is making a whole product line of them.
> > >
> > > Even a Mouser search returns 495 results, tons of stock:
> > >
> > > https://www.mouser.com/c/semiconductors/power-management-ics/gate-drivers/?product=Isolated%20Gate%20Drivers&gclid=CjwKCAiAheacBhB8EiwAItVO24JWa-vYSF5goWUZ6QEYzUR0rsHVJuDS7lT7n7UWmGMTqL2W9nAWJRoCnR4QAvD_BwE
> > how many of them with a build in isolated supply?
> Seriously? Probably all of them.

ok, so you didn't look at any of them ....

Re: slick gate driver

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Subject: Re: slick gate driver
From: bloggs.f...@gmail.com (Fred Bloggs)
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 by: Fred Bloggs - Wed, 14 Dec 2022 17:17 UTC

On Wednesday, December 14, 2022 at 12:15:47 PM UTC-5, lang...@fonz.dk wrote:
> onsdag den 14. december 2022 kl. 17.28.06 UTC+1 skrev Fred Bloggs:
> > On Wednesday, December 14, 2022 at 11:19:00 AM UTC-5, lang...@fonz.dk wrote:
> > > onsdag den 14. december 2022 kl. 17.01.10 UTC+1 skrev Fred Bloggs:
> > > > On Monday, December 12, 2022 at 6:57:01 PM UTC-5, John Larkin wrote:
> > > > > https://www.ti.com/product/TPSI3050-Q1
> > > > >
> > > > > Very cool, but costs $3 and you can't get them.
> > > > This type of IC is an isolated gate driver, there's absolutely nothing slick or exceptional about it, everyone in the world is making a whole product line of them.
> > > >
> > > > Even a Mouser search returns 495 results, tons of stock:
> > > >
> > > > https://www.mouser.com/c/semiconductors/power-management-ics/gate-drivers/?product=Isolated%20Gate%20Drivers&gclid=CjwKCAiAheacBhB8EiwAItVO24JWa-vYSF5goWUZ6QEYzUR0rsHVJuDS7lT7n7UWmGMTqL2W9nAWJRoCnR4QAvD_BwE
> > > how many of them with a build in isolated supply?
> > Seriously? Probably all of them.
> ok, so you didn't look at any of them ....

No, I'm not going to make a study of it.

Re: slick gate driver

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Subject: Re: slick gate driver
From: langw...@fonz.dk (Lasse Langwadt Christensen)
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 by: Lasse Langwadt Chris - Wed, 14 Dec 2022 17:26 UTC

onsdag den 14. december 2022 kl. 18.17.50 UTC+1 skrev Fred Bloggs:
> On Wednesday, December 14, 2022 at 12:15:47 PM UTC-5, lang...@fonz.dk wrote:
> > onsdag den 14. december 2022 kl. 17.28.06 UTC+1 skrev Fred Bloggs:
> > > On Wednesday, December 14, 2022 at 11:19:00 AM UTC-5, lang...@fonz.dk wrote:
> > > > onsdag den 14. december 2022 kl. 17.01.10 UTC+1 skrev Fred Bloggs:
> > > > > On Monday, December 12, 2022 at 6:57:01 PM UTC-5, John Larkin wrote:
> > > > > > https://www.ti.com/product/TPSI3050-Q1
> > > > > >
> > > > > > Very cool, but costs $3 and you can't get them.
> > > > > This type of IC is an isolated gate driver, there's absolutely nothing slick or exceptional about it, everyone in the world is making a whole product line of them.
> > > > >
> > > > > Even a Mouser search returns 495 results, tons of stock:
> > > > >
> > > > > https://www.mouser.com/c/semiconductors/power-management-ics/gate-drivers/?product=Isolated%20Gate%20Drivers&gclid=CjwKCAiAheacBhB8EiwAItVO24JWa-vYSF5goWUZ6QEYzUR0rsHVJuDS7lT7n7UWmGMTqL2W9nAWJRoCnR4QAvD_BwE
> > > > how many of them with a build in isolated supply?
> > > Seriously? Probably all of them.
> > ok, so you didn't look at any of them ....
> No, I'm not going to make a study of it.

ofcourse not, it would prove you wrong ...

Re: slick gate driver

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Subject: Re: slick gate driver
From: bloggs.f...@gmail.com (Fred Bloggs)
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 by: Fred Bloggs - Wed, 14 Dec 2022 17:36 UTC

On Wednesday, December 14, 2022 at 12:27:04 PM UTC-5, lang...@fonz.dk wrote:
> onsdag den 14. december 2022 kl. 18.17.50 UTC+1 skrev Fred Bloggs:
> > On Wednesday, December 14, 2022 at 12:15:47 PM UTC-5, lang...@fonz.dk wrote:
> > > onsdag den 14. december 2022 kl. 17.28.06 UTC+1 skrev Fred Bloggs:
> > > > On Wednesday, December 14, 2022 at 11:19:00 AM UTC-5, lang...@fonz.dk wrote:
> > > > > onsdag den 14. december 2022 kl. 17.01.10 UTC+1 skrev Fred Bloggs:
> > > > > > On Monday, December 12, 2022 at 6:57:01 PM UTC-5, John Larkin wrote:
> > > > > > > https://www.ti.com/product/TPSI3050-Q1
> > > > > > >
> > > > > > > Very cool, but costs $3 and you can't get them.
> > > > > > This type of IC is an isolated gate driver, there's absolutely nothing slick or exceptional about it, everyone in the world is making a whole product line of them.
> > > > > >
> > > > > > Even a Mouser search returns 495 results, tons of stock:
> > > > > >
> > > > > > https://www.mouser.com/c/semiconductors/power-management-ics/gate-drivers/?product=Isolated%20Gate%20Drivers&gclid=CjwKCAiAheacBhB8EiwAItVO24JWa-vYSF5goWUZ6QEYzUR0rsHVJuDS7lT7n7UWmGMTqL2W9nAWJRoCnR4QAvD_BwE
> > > > > how many of them with a build in isolated supply?
> > > > Seriously? Probably all of them.
> > > ok, so you didn't look at any of them ....
> > No, I'm not going to make a study of it.
> ofcourse not, it would prove you wrong ...

Ooooh- I would hate to be "wrong." Hey, everybody, look, he's wrong!

What are you, a 5yo?

Re: slick gate driver

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From: jlar...@highland_atwork_technology.com (John Larkin)
Newsgroups: sci.electronics.design
Subject: Re: slick gate driver
Date: Wed, 14 Dec 2022 10:34:33 -0800
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 by: John Larkin - Wed, 14 Dec 2022 18:34 UTC

On Wed, 14 Dec 2022 08:01:03 -0800 (PST), Fred Bloggs
<bloggs.fredbloggs.fred@gmail.com> wrote:

>On Monday, December 12, 2022 at 6:57:01 PM UTC-5, John Larkin wrote:
>> https://www.ti.com/product/TPSI3050-Q1
>>
>> Very cool, but costs $3 and you can't get them.
>
>This type of IC is an isolated gate driver, there's absolutely nothing slick or exceptional about it, everyone in the world is making a whole product line of them.

Then I suppose you won't be designing it into anything.

Re: slick gate driver

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From: boB...@K7IQ.com (boB)
Newsgroups: sci.electronics.design
Subject: Re: slick gate driver
Date: Wed, 14 Dec 2022 14:59:46 -0800
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 by: boB - Wed, 14 Dec 2022 22:59 UTC

On Wed, 14 Dec 2022 03:51:15 -0800 (PST), John Walliker
<jrwalliker@gmail.com> wrote:

>On Tuesday, 13 December 2022 at 22:19:19 UTC, boB wrote:
>> On Tue, 13 Dec 2022 07:31:34 -0800, John Larkin
>> <jla...@highlandSNIPMEtechnology.com> wrote:
>>
>> >On Mon, 12 Dec 2022 21:10:12 -0800 (PST), whit3rd <whi...@gmail.com>
>> >wrote:
>> >
>> >>On Monday, December 12, 2022 at 3:57:01 PM UTC-8, John Larkin wrote:
>> >>> https://www.ti.com/product/TPSI3050-Q1
>> >>>
>> >>> Very cool, but costs $3 and you can't get them.
>> >>
>> >>
>> >>And if you could get 'em, it has a 100A rating; how are you gonna attach
>> >>the busbars? What do you use as a protective fuse?
>> >
>> >It's a gate diver in an SO8 package.
>> >
>> >Repeat: GATE DRIVER.
>> >
>> >I'd use them right now if we can be assured of delivery.
>> The link (not spec sheet) in that URL says 100A, John.
>>
>> It's actually something like 1.5A source and 2A sync.
>>
>> 10V gate drive is enough for a lot of applications but where you need
>> absolute lowest RdsOn, still wants higher on voltage.
>>
>> AND if you need negative gate drive too, (which I do), then 10V is
>> not nearly enough to have full on and a few negative volts Vgs
>>
>> boB
>
>There is this one with 15V output:
>https://www.ti.com/product/TPSI3052-Q1
>
>John

NOW we're talking ! Thanks !

Can't get these either though.

I put this in my datasheet directory of FET drivers.

boB

Re: slick gate driver

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Newsgroups: sci.electronics.design
Subject: Re: slick gate driver
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 by: boB - Wed, 14 Dec 2022 23:02 UTC

On Wed, 14 Dec 2022 09:36:12 -0800 (PST), Fred Bloggs
<bloggs.fredbloggs.fred@gmail.com> wrote:

>On Wednesday, December 14, 2022 at 12:27:04 PM UTC-5, lang...@fonz.dk wrote:
>> onsdag den 14. december 2022 kl. 18.17.50 UTC+1 skrev Fred Bloggs:
>> > On Wednesday, December 14, 2022 at 12:15:47 PM UTC-5, lang...@fonz.dk wrote:
>> > > onsdag den 14. december 2022 kl. 17.28.06 UTC+1 skrev Fred Bloggs:
>> > > > On Wednesday, December 14, 2022 at 11:19:00 AM UTC-5, lang...@fonz.dk wrote:
>> > > > > onsdag den 14. december 2022 kl. 17.01.10 UTC+1 skrev Fred Bloggs:
>> > > > > > On Monday, December 12, 2022 at 6:57:01 PM UTC-5, John Larkin wrote:
>> > > > > > > https://www.ti.com/product/TPSI3050-Q1
>> > > > > > >
>> > > > > > > Very cool, but costs $3 and you can't get them.
>> > > > > > This type of IC is an isolated gate driver, there's absolutely nothing slick or exceptional about it, everyone in the world is making a whole product line of them.
>> > > > > >
>> > > > > > Even a Mouser search returns 495 results, tons of stock:
>> > > > > >
>> > > > > > https://www.mouser.com/c/semiconductors/power-management-ics/gate-drivers/?product=Isolated%20Gate%20Drivers&gclid=CjwKCAiAheacBhB8EiwAItVO24JWa-vYSF5goWUZ6QEYzUR0rsHVJuDS7lT7n7UWmGMTqL2W9nAWJRoCnR4QAvD_BwE
>> > > > > how many of them with a build in isolated supply?
>> > > > Seriously? Probably all of them.
>> > > ok, so you didn't look at any of them ....
>> > No, I'm not going to make a study of it.
>> ofcourse not, it would prove you wrong ...
>
>Ooooh- I would hate to be "wrong." Hey, everybody, look, he's wrong!
>
>What are you, a 5yo?

This TI part, if you could get them, includes the isolated secondary
supply where none of the typical isolated drivers do.

This one(s) are definitely different than most.

boB

Re: slick gate driver

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Subject: Re: slick gate driver
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 by: legg - Wed, 14 Dec 2022 23:31 UTC

On Tue, 13 Dec 2022 07:31:34 -0800, John Larkin
<jlarkin@highlandSNIPMEtechnology.com> wrote:

>On Mon, 12 Dec 2022 21:10:12 -0800 (PST), whit3rd <whit3rd@gmail.com>
>wrote:
>
>>On Monday, December 12, 2022 at 3:57:01 PM UTC-8, John Larkin wrote:
>>> https://www.ti.com/product/TPSI3050-Q1
>>>
>>> Very cool, but costs $3 and you can't get them.
>>
>>
>>And if you could get 'em, it has a 100A rating; how are you gonna attach
>>the busbars? What do you use as a protective fuse?
>
>It's a gate diver in an SO8 package.
>
>Repeat: GATE DRIVER.
>
>I'd use them right now if we can be assured of delivery.

I wouldn't touch them with a 10 ft pole.

Why risk it? Not second-sourced, and may never be, considering
the rate of data sheet revision . . . .

RL

Re: slick gate driver

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From: boB...@K7IQ.com (boB)
Newsgroups: sci.electronics.design
Subject: Re: slick gate driver
Date: Tue, 20 Dec 2022 18:45:01 -0800
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 by: boB - Wed, 21 Dec 2022 02:45 UTC

On Wed, 14 Dec 2022 18:31:00 -0500, legg <legg@nospam.magma.ca> wrote:

>On Tue, 13 Dec 2022 07:31:34 -0800, John Larkin
><jlarkin@highlandSNIPMEtechnology.com> wrote:
>
>>On Mon, 12 Dec 2022 21:10:12 -0800 (PST), whit3rd <whit3rd@gmail.com>
>>wrote:
>>
>>>On Monday, December 12, 2022 at 3:57:01 PM UTC-8, John Larkin wrote:
>>>> https://www.ti.com/product/TPSI3050-Q1
>>>>
>>>> Very cool, but costs $3 and you can't get them.
>>>
>>>
>>>And if you could get 'em, it has a 100A rating; how are you gonna attach
>>>the busbars? What do you use as a protective fuse?
>>
>>It's a gate diver in an SO8 package.
>>
>>Repeat: GATE DRIVER.
>>
>>I'd use them right now if we can be assured of delivery.
>
>I wouldn't touch them with a 10 ft pole.
>
>Why risk it? Not second-sourced, and may never be, considering
>the rate of data sheet revision . . . .
>
>RL

Single sourced, true. But we have to use many single sourced parts. A
lot of custom parts as well.

All of our microcontrollers are also single sourced, as most are.

For a single sourced gate driver, we can normally, easily design in a
new one, and in this case, would have to add a way to power the
secondary if need be if this part went away.

Designing in another microcontroller would be a MUCH bigger task and
take many months, if not a year, possibly.

Not that I am thinking about using this gate driver, but it would
actually work to replace a bunch of circuitry, especially where space
is critical. But, can't get them anyway so a moot point.

Happy Christmas !

boB

Re: slick gate driver

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 by: bitrex - Wed, 21 Dec 2022 03:15 UTC

On 12/20/2022 9:45 PM, boB wrote:
> On Wed, 14 Dec 2022 18:31:00 -0500, legg <legg@nospam.magma.ca> wrote:
>
>> On Tue, 13 Dec 2022 07:31:34 -0800, John Larkin
>> <jlarkin@highlandSNIPMEtechnology.com> wrote:
>>
>>> On Mon, 12 Dec 2022 21:10:12 -0800 (PST), whit3rd <whit3rd@gmail.com>
>>> wrote:
>>>
>>>> On Monday, December 12, 2022 at 3:57:01 PM UTC-8, John Larkin wrote:
>>>>> https://www.ti.com/product/TPSI3050-Q1
>>>>>
>>>>> Very cool, but costs $3 and you can't get them.
>>>>
>>>>
>>>> And if you could get 'em, it has a 100A rating; how are you gonna attach
>>>> the busbars? What do you use as a protective fuse?
>>>
>>> It's a gate diver in an SO8 package.
>>>
>>> Repeat: GATE DRIVER.
>>>
>>> I'd use them right now if we can be assured of delivery.
>>
>> I wouldn't touch them with a 10 ft pole.
>>
>> Why risk it? Not second-sourced, and may never be, considering
>> the rate of data sheet revision . . . .
>>
>> RL
>
> Single sourced, true. But we have to use many single sourced parts. A
> lot of custom parts as well.
>
> All of our microcontrollers are also single sourced, as most are.
>
> For a single sourced gate driver, we can normally, easily design in a
> new one, and in this case, would have to add a way to power the
> secondary if need be if this part went away.
>
> Designing in another microcontroller would be a MUCH bigger task and
> take many months, if not a year, possibly.
>
> Not that I am thinking about using this gate driver, but it would
> actually work to replace a bunch of circuitry, especially where space
> is critical. But, can't get them anyway so a moot point.
>
> Happy Christmas !
>
> boB
>
>

The integrated secondary supply is cool, the downside is you trade off
speed as you can only transfer so much energy thru that bitty on-chip
silicon isolation barrier so quickly.

4000ns rise is pretty slow, without the need for transferring power the
modulator/demodulator isolation topology can do more like 40.

Re: slick gate driver

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 by: bitrex - Wed, 21 Dec 2022 03:25 UTC

On 12/20/2022 10:15 PM, bitrex wrote:
> On 12/20/2022 9:45 PM, boB wrote:
>> On Wed, 14 Dec 2022 18:31:00 -0500, legg <legg@nospam.magma.ca> wrote:
>>
>>> On Tue, 13 Dec 2022 07:31:34 -0800, John Larkin
>>> <jlarkin@highlandSNIPMEtechnology.com> wrote:
>>>
>>>> On Mon, 12 Dec 2022 21:10:12 -0800 (PST), whit3rd <whit3rd@gmail.com>
>>>> wrote:
>>>>
>>>>> On Monday, December 12, 2022 at 3:57:01 PM UTC-8, John Larkin wrote:
>>>>>> https://www.ti.com/product/TPSI3050-Q1
>>>>>>
>>>>>> Very cool, but costs $3 and you can't get them.
>>>>>
>>>>>
>>>>> And if you could get 'em,  it  has a 100A rating; how are you gonna
>>>>> attach
>>>>> the busbars?   What do you use as a protective fuse?
>>>>
>>>> It's a gate diver in an SO8 package.
>>>>
>>>> Repeat: GATE DRIVER.
>>>>
>>>> I'd use them right now if we can be assured of delivery.
>>>
>>> I wouldn't touch them with a 10 ft pole.
>>>
>>> Why risk it? Not second-sourced, and may never be, considering
>>> the rate of data sheet revision . . . .
>>>
>>> RL
>>
>> Single sourced, true.  But we have to use many single sourced parts. A
>> lot of custom parts as well.
>>
>> All of our microcontrollers are also single sourced, as most are.
>>
>> For a single sourced gate driver, we can normally, easily design in a
>> new one, and in this case, would have to add a way to power the
>> secondary if need be if this part went away.
>>
>> Designing in another microcontroller would be a MUCH bigger task and
>> take many months, if not a year, possibly.
>>
>> Not that I am thinking about using this gate driver, but it would
>> actually work to replace a bunch of circuitry, especially where space
>> is critical.  But, can't get them anyway so a moot point.
>>
>> Happy Christmas !
>>
>> boB
>>
>>
>
>
> The integrated secondary supply is cool, the downside is you trade off
> speed as you can only transfer so much energy thru that bitty on-chip
> silicon isolation barrier so quickly.
>
> 4000ns rise is pretty slow, without the need for transferring power the
> modulator/demodulator isolation topology can do more like 40.

correction: not the rise time, rather the propagation delay.

Re: slick gate driver

<p3k6qh5o265ao2vibatj87185q64ctve46@4ax.com>

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From: boB...@K7IQ.com (boB)
Newsgroups: sci.electronics.design
Subject: Re: slick gate driver
Date: Wed, 21 Dec 2022 10:31:20 -0800
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 by: boB - Wed, 21 Dec 2022 18:31 UTC

On Tue, 20 Dec 2022 22:25:02 -0500, bitrex <user@example.net> wrote:

>On 12/20/2022 10:15 PM, bitrex wrote:
>> On 12/20/2022 9:45 PM, boB wrote:
>>> On Wed, 14 Dec 2022 18:31:00 -0500, legg <legg@nospam.magma.ca> wrote:
>>>
>>>> On Tue, 13 Dec 2022 07:31:34 -0800, John Larkin
>>>> <jlarkin@highlandSNIPMEtechnology.com> wrote:
>>>>
>>>>> On Mon, 12 Dec 2022 21:10:12 -0800 (PST), whit3rd <whit3rd@gmail.com>
>>>>> wrote:
>>>>>
>>>>>> On Monday, December 12, 2022 at 3:57:01 PM UTC-8, John Larkin wrote:
>>>>>>> https://www.ti.com/product/TPSI3050-Q1
>>>>>>>
>>>>>>> Very cool, but costs $3 and you can't get them.
>>>>>>
>>>>>>
>>>>>> And if you could get 'em,  it  has a 100A rating; how are you gonna
>>>>>> attach
>>>>>> the busbars?   What do you use as a protective fuse?
>>>>>
>>>>> It's a gate diver in an SO8 package.
>>>>>
>>>>> Repeat: GATE DRIVER.
>>>>>
>>>>> I'd use them right now if we can be assured of delivery.
>>>>
>>>> I wouldn't touch them with a 10 ft pole.
>>>>
>>>> Why risk it? Not second-sourced, and may never be, considering
>>>> the rate of data sheet revision . . . .
>>>>
>>>> RL
>>>
>>> Single sourced, true.  But we have to use many single sourced parts. A
>>> lot of custom parts as well.
>>>
>>> All of our microcontrollers are also single sourced, as most are.
>>>
>>> For a single sourced gate driver, we can normally, easily design in a
>>> new one, and in this case, would have to add a way to power the
>>> secondary if need be if this part went away.
>>>
>>> Designing in another microcontroller would be a MUCH bigger task and
>>> take many months, if not a year, possibly.
>>>
>>> Not that I am thinking about using this gate driver, but it would
>>> actually work to replace a bunch of circuitry, especially where space
>>> is critical.  But, can't get them anyway so a moot point.
>>>
>>> Happy Christmas !
>>>
>>> boB
>>>
>>>
>>
>>
>> The integrated secondary supply is cool, the downside is you trade off
>> speed as you can only transfer so much energy thru that bitty on-chip
>> silicon isolation barrier so quickly.
>>
>> 4000ns rise is pretty slow, without the need for transferring power the
>> modulator/demodulator isolation topology can do more like 40.
>
>correction: not the rise time, rather the propagation delay.

4 microsecond propagation delay ? That is quite a bit for a
high-speed switcher but would be fine for a simple On-Off gate
operated switch like I would have used it for.

In that case, I don't care about the propagation delay but I do care
about having the HV side gate turned ON or OFF for a long time
(relatively speaking)

boB

Re: slick gate driver

<fca06712-2e54-4a40-b0f9-ae8cea006a7an@googlegroups.com>

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 by: whit3rd - Wed, 21 Dec 2022 20:43 UTC

On Wednesday, December 21, 2022 at 10:31:27 AM UTC-8, boB wrote:
> On Tue, 20 Dec 2022 22:25:02 -0500, bitrex <us...@example.net> wrote:
>
> >On 12/20/2022 10:15 PM, bitrex wrote:

> >> The integrated secondary supply is cool, the downside is you trade off
> >> speed as you can only transfer so much energy thru that bitty on-chip
> >> silicon isolation barrier so quickly.
> >>
> >> 4000ns rise is pretty slow, without the need for transferring power the
> >> modulator/demodulator isolation topology can do more like 40.
> >
> >correction: not the rise time, rather the propagation delay.
> 4 microsecond propagation delay ? That is quite a bit for a
> high-speed switcher but would be fine for a simple On-Off gate
> operated switch like I would have used it for.

It seems there's a single magnetic circuit, and some kind of modulation signals the
output to switch; so, many cycles of the energy-transfer are sensed before the
'on/off' signal is recognized and acted on. A high-speed SMPS would use
feedback to stabilize the long-term output, so a 4us propogation delay wouldn't be
a killer for frequencies up to 30 kHz. For something faster, you'd want a second
(inductive or optical) channel for the logic signal.

Re: slick gate driver

<to05mh$16q2$1@gioia.aioe.org>

  copy mid

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From: klausk...@hotmail.com (Klaus Vestergaard Kragelund)
Newsgroups: sci.electronics.design
Subject: Re: slick gate driver
Date: Thu, 22 Dec 2022 00:43:13 +0100
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 by: Klaus Vestergaard Kr - Wed, 21 Dec 2022 23:43 UTC

On 21-12-2022 21:43, whit3rd wrote:
> On Wednesday, December 21, 2022 at 10:31:27 AM UTC-8, boB wrote:
>> On Tue, 20 Dec 2022 22:25:02 -0500, bitrex <us...@example.net> wrote:
>>
>>> On 12/20/2022 10:15 PM, bitrex wrote:
>
>>>> The integrated secondary supply is cool, the downside is you trade off
>>>> speed as you can only transfer so much energy thru that bitty on-chip
>>>> silicon isolation barrier so quickly.
>>>>
>>>> 4000ns rise is pretty slow, without the need for transferring power the
>>>> modulator/demodulator isolation topology can do more like 40.
>>>
>>> correction: not the rise time, rather the propagation delay.
>> 4 microsecond propagation delay ? That is quite a bit for a
>> high-speed switcher but would be fine for a simple On-Off gate
>> operated switch like I would have used it for.
>
> It seems there's a single magnetic circuit, and some kind of modulation signals the
> output to switch; so, many cycles of the energy-transfer are sensed before the
> 'on/off' signal is recognized and acted on. A high-speed SMPS would use
> feedback to stabilize the long-term output, so a 4us propogation delay wouldn't be
> a killer for frequencies up to 30 kHz. For something faster, you'd want a second
> (inductive or optical) channel for the logic signal.

4us is way slow. Wont be usefull for any demaanding circuiut. Too bad,
since it has 100V/ns CM rejection, which is ok, for an fully isolated
driver.

tech / sci.electronics.design / slick gate driver

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