Diodes is lately a lot more than diodes. A similar case is Onsemi, a spinoff of Motorola that inherited the cheap gumdrop business but does a lot more now. Diodes has some dynamite new switchers, the AP66200 parts, that I'd like to use. Any experience with Diodes, as regards support and especially keeping parts in production? Any horror stories?
Diodes, Inc
Started by ●July 19, 2023
Reply by ●July 19, 20232023-07-19
John Larkin <jlarkin@highlandSNIPMEtechnology.com> wrote:> Diodes is lately a lot more than diodes. A similar case is Onsemi, a > spinoff of Motorola that inherited the cheap gumdrop business but does > a lot more now. > > Diodes has some dynamite new switchers, the AP66200 parts, that I'd > like to use. > > Any experience with Diodes, as regards support and especially keeping > parts in production? Any horror stories? > >We’ve had good luck with them. Some of their analog parts are odd, both for good or ill. Their TLV431 is better than TI’s original, and much much better than the onsemi version. Their TLC271 is, like, 30 dB noisier than TI’s. Haven’t used any of their switcher parts. Cheers Phil Hobbs -- Dr Philip C D Hobbs Principal Consultant ElectroOptical Innovations LLC / Hobbs ElectroOptics Optics, Electro-optics, Photonics, Analog Electronics
Reply by ●July 19, 20232023-07-19
On Wed, 19 Jul 2023 16:31:27 -0000 (UTC), Phil Hobbs <pcdhSpamMeSenseless@electrooptical.net> wrote:>John Larkin <jlarkin@highlandSNIPMEtechnology.com> wrote: >> Diodes is lately a lot more than diodes. A similar case is Onsemi, a >> spinoff of Motorola that inherited the cheap gumdrop business but does >> a lot more now. >> >> Diodes has some dynamite new switchers, the AP66200 parts, that I'd >> like to use. >> >> Any experience with Diodes, as regards support and especially keeping >> parts in production? Any horror stories? >> >> > >We�ve had good luck with them. Some of their analog parts are odd, both for >good or ill. > >Their TLV431 is better than TI�s original, and much much better than the >onsemi version. > >Their TLC271 is, like, 30 dB noisier than TI�s. > >Haven�t used any of their switcher parts. > >Cheers > >Phil HobbsThat switcher looks fabulous. I'm designing a board with maybe 125 12-volt-coil relays and I have to switch +48 down to 12 and have about no room to do it in. HV-input switchers are rare. I like the old LM2576HV-ADJ but it, and its inductor and caps, are gigantic.
Reply by ●July 19, 20232023-07-19
On 7/19/2023 19:31, Phil Hobbs wrote:> John Larkin <jlarkin@highlandSNIPMEtechnology.com> wrote: >> Diodes is lately a lot more than diodes. A similar case is Onsemi, a >> spinoff of Motorola that inherited the cheap gumdrop business but does >> a lot more now. >> >> Diodes has some dynamite new switchers, the AP66200 parts, that I'd >> like to use. >> >> Any experience with Diodes, as regards support and especially keeping >> parts in production? Any horror stories? >> >> > > We’ve had good luck with them. Some of their analog parts are odd, both for > good or ill. > > Their TLV431 is better than TI’s original, and much much better than the > onsemi version.I use these only as overvoltage detecting refs for a 1.5V supply so I have not noticed which are better, in fact I don't know which ones we have been using. Thanks, good to know.> > Their TLC271 is, like, 30 dB noisier than TI’s. > > Haven’t used any of their switcher parts.I am eyeing their AP62800, rated at 8A and I need sort of 6. However their diagrams are only (mostly) at 5 and 3.3V out, I want to use it at 1V (where the 6A will be, may be elsewhere as well. Meaning I'll have to test it before committing, stability, (huge) load change response etc. can take me by surprise. And thanks to John Larkin for mentioning diodes as a source.> > Cheers > > Phil Hobbs >
Reply by ●July 19, 20232023-07-19
On Wednesday, July 19, 2023 at 11:08:24 AM UTC-7, John Larkin wrote:> On Wed, 19 Jul 2023 16:31:27 -0000 (UTC), Phil Hobbs > <pcdhSpamM...@electrooptical.net> wrote: > > >John Larkin <jla...@highlandSNIPMEtechnology.com> wrote: > >> Diodes is lately a lot more than diodes. A similar case is Onsemi, a > >> spinoff of Motorola that inherited the cheap gumdrop business but does > >> a lot more now. > >> > >> Diodes has some dynamite new switchers, the AP66200 parts, that I'd > >> like to use. > >> > >> Any experience with Diodes, as regards support and especially keeping > >> parts in production? Any horror stories? > >> > >> > > > >We’ve had good luck with them. Some of their analog parts are odd, both for > >good or ill. > > > >Their TLV431 is better than TI’s original, and much much better than the > >onsemi version. > > > >Their TLC271 is, like, 30 dB noisier than TI’s. > > > >Haven’t used any of their switcher parts. > > > >Cheers > > > >Phil Hobbs > That switcher looks fabulous. I'm designing a board with maybe 125 > 12-volt-coil relays and I have to switch +48 down to 12 and have about > no room to do it in. HV-input switchers are rare. I like the old > LM2576HV-ADJ but it, and its inductor and caps, are gigantic.How many of them are switched on at the same time? How do you deal with the initial surge? I am looking for a way to have a short delay to sequence on 24V relay coils.
Reply by ●July 19, 20232023-07-19
On 7/19/2023 2:15 PM, Eddy Lee wrote:> On Wednesday, July 19, 2023 at 11:08:24 AM UTC-7, John Larkin wrote: >> On Wed, 19 Jul 2023 16:31:27 -0000 (UTC), Phil Hobbs >> <pcdhSpamM...@electrooptical.net> wrote: >> >>> John Larkin <jla...@highlandSNIPMEtechnology.com> wrote: >>>> Diodes is lately a lot more than diodes. A similar case is Onsemi, a >>>> spinoff of Motorola that inherited the cheap gumdrop business but does >>>> a lot more now. >>>> >>>> Diodes has some dynamite new switchers, the AP66200 parts, that I'd >>>> like to use. >>>> >>>> Any experience with Diodes, as regards support and especially keeping >>>> parts in production? Any horror stories? >>>> >>>> >>> >>> We’ve had good luck with them. Some of their analog parts are odd, both for >>> good or ill. >>> >>> Their TLV431 is better than TI’s original, and much much better than the >>> onsemi version. >>> >>> Their TLC271 is, like, 30 dB noisier than TI’s. >>> >>> Haven’t used any of their switcher parts. >>> >>> Cheers >>> >>> Phil Hobbs >> That switcher looks fabulous. I'm designing a board with maybe 125 >> 12-volt-coil relays and I have to switch +48 down to 12 and have about >> no room to do it in. HV-input switchers are rare. I like the old >> LM2576HV-ADJ but it, and its inductor and caps, are gigantic. > > How many of them are switched on at the same time? How do you deal with the initial surge? I am looking for a way to have a short delay to sequence on 24V relay coils.Do you have a spare contact on each relay?
Reply by ●July 19, 20232023-07-19
On Wednesday, July 19, 2023 at 12:20:06 PM UTC-7, John S wrote:> On 7/19/2023 2:15 PM, Eddy Lee wrote: > > On Wednesday, July 19, 2023 at 11:08:24 AM UTC-7, John Larkin wrote: > >> On Wed, 19 Jul 2023 16:31:27 -0000 (UTC), Phil Hobbs > >> <pcdhSpamM...@electrooptical.net> wrote: > >> > >>> John Larkin <jla...@highlandSNIPMEtechnology.com> wrote: > >>>> Diodes is lately a lot more than diodes. A similar case is Onsemi, a > >>>> spinoff of Motorola that inherited the cheap gumdrop business but does > >>>> a lot more now. > >>>> > >>>> Diodes has some dynamite new switchers, the AP66200 parts, that I'd > >>>> like to use. > >>>> > >>>> Any experience with Diodes, as regards support and especially keeping > >>>> parts in production? Any horror stories? > >>>> > >>>> > >>> > >>> We’ve had good luck with them. Some of their analog parts are odd, both for > >>> good or ill. > >>> > >>> Their TLV431 is better than TI’s original, and much much better than the > >>> onsemi version. > >>> > >>> Their TLC271 is, like, 30 dB noisier than TI’s. > >>> > >>> Haven’t used any of their switcher parts. > >>> > >>> Cheers > >>> > >>> Phil Hobbs > >> That switcher looks fabulous. I'm designing a board with maybe 125 > >> 12-volt-coil relays and I have to switch +48 down to 12 and have about > >> no room to do it in. HV-input switchers are rare. I like the old > >> LM2576HV-ADJ but it, and its inductor and caps, are gigantic. > > > > How many of them are switched on at the same time? How do you deal with the initial surge? I am looking for a way to have a short delay to sequence on 24V relay coils. > Do you have a spare contact on each relay?No, all used on DPDT.
Reply by ●July 19, 20232023-07-19
On Wed, 19 Jul 2023 09:07:23 -0700, John Larkin <jlarkin@highlandSNIPMEtechnology.com> wrote:>Diodes is lately a lot more than diodes. A similar case is Onsemi, a >spinoff of Motorola that inherited the cheap gumdrop business but does >a lot more now. > >Diodes has some dynamite new switchers, the AP66200 parts, that I'd >like to use. > >Any experience with Diodes, as regards support and especially keeping >parts in production? Any horror stories?I hve used Diodes Inc for many many years. Good stuff as I remember. boB
Reply by ●July 19, 20232023-07-19
On 7/19/23 9:07 AM, John Larkin wrote:> Diodes is lately a lot more than diodes. A similar case is Onsemi, a > spinoff of Motorola that inherited the cheap gumdrop business but does > a lot more now. > > Diodes has some dynamite new switchers, the AP66200 parts, that I'd > like to use. >They do make good parts and, most of all, at good prices.> Any experience with Diodes, as regards support and especially keeping > parts in production? Any horror stories? >Yep, one. I designed a specialty circuit around their AP63200. Worked beautifully until ... the AP63200 became hardcore unobtanium. Many manufacturers had such supply chain problems though so I am not going to diss them for that. Heck, for a while you couldn't even get toilet paper around here. Subsequently I did the usual, designed it back out and made the whole circuit jelly-bean and discretes so there would no longer be much of a supply chain risk. Now this client has two designs, a fancy nice one and a more mundane fallback version if things hit the fan. A good insurance policy on their part. Long story, over the last few years I really got weaned off super nice parts and rather go a more classic route with less supply chain risk. -- Regards, Joerg http://www.analogconsultants.com/
Reply by ●July 19, 20232023-07-19
On Wed, 19 Jul 2023 12:15:17 -0700 (PDT), Eddy Lee <eddy711lee@gmail.com> wrote:>On Wednesday, July 19, 2023 at 11:08:24?AM UTC-7, John Larkin wrote: >> On Wed, 19 Jul 2023 16:31:27 -0000 (UTC), Phil Hobbs >> <pcdhSpamM...@electrooptical.net> wrote: >> >> >John Larkin <jla...@highlandSNIPMEtechnology.com> wrote: >> >> Diodes is lately a lot more than diodes. A similar case is Onsemi, a >> >> spinoff of Motorola that inherited the cheap gumdrop business but does >> >> a lot more now. >> >> >> >> Diodes has some dynamite new switchers, the AP66200 parts, that I'd >> >> like to use. >> >> >> >> Any experience with Diodes, as regards support and especially keeping >> >> parts in production? Any horror stories? >> >> >> >> >> > >> >We�ve had good luck with them. Some of their analog parts are odd, both for >> >good or ill. >> > >> >Their TLV431 is better than TI�s original, and much much better than the >> >onsemi version. >> > >> >Their TLC271 is, like, 30 dB noisier than TI�s. >> > >> >Haven�t used any of their switcher parts. >> > >> >Cheers >> > >> >Phil Hobbs >> That switcher looks fabulous. I'm designing a board with maybe 125 >> 12-volt-coil relays and I have to switch +48 down to 12 and have about >> no room to do it in. HV-input switchers are rare. I like the old >> LM2576HV-ADJ but it, and its inductor and caps, are gigantic. > >How many of them are switched on at the same time? How do you deal with the initial surge? I am looking for a way to have a short delay to sequence on 24V relay coils.Rough guess, maybe 50 max on at once. What surge do you expect? One trick is to bump up the coil bus voltage to 12 for a while whenever any relay state is changed, and drop it down to the guaranteed holding voltage after a short while. But my relays will only need maybe 200 mW coil power each, under an amp for all 50 on, so that's not worth the hassle here. I'm thinking of using an Efinix FPGA and ULN2003s as the coil drivers.
