Useful, but not well known ICs
Thomas W, Thu Sept 19 2013, 07:02PMHey guys, i was thinking....
Lets make a thread on not so well known ICs that are still very useful!
Any you submit, il add up on a list here :)
Single chip offline power supply controllers:
The TOP233YN, a 30 - 50W Offline Switcher
The TOP246YN, a 90 - 125W version of the above
Regulators:
The LM2578, a 2 - 40v 750mA max Switching Regulator
The LM2576, a 3A step-down Switching Regulator
The LM2676, a 3A step-down Switching Regulator
(both unisolated DC-DC converter IC's but the difference's are that the LM2676 has an internal FET switch and runs at 260khz, whilst the LM2576 uses an NPN transistor switch and runs at 52khz. Both are rated for 3 amps switch current)
PMW/ SMPS Controllers:
The KA3525 a SMPS Controller
The TL494 the ever famous PWM IC
Function Generators:
The XR2206 Monolithic Function Gen, range of 0.01Hz to more than 1MHz.
The ICL8038 Waveform Gen/ VCO, range of 0.001Hz to more than 300kHz
The MAX038 HF Waveform Generator (40MHz max)
Oscillators:
The LTC1799 1kHz to 33MHz Resistor Set SOT-23 Oscillator
Amplifiers:
A MAR-6 DC-2GHz monolithic amplifier
Other:
The LM1881 Video Sync Seperator
The NE564 50 MHz Phase-locked loop
Re: Useful, but not well known ICs
Chris Cristini, Fri Sept 20 2013, 12:37PM
Well here is one of my favorites seems to be better than The TL494
KA3525 SMPS Controller
.
I have a question who elts has an over whelming amount of Quad Op Amps from DE soldering old used circuit boards.
Chris Cristini, Fri Sept 20 2013, 12:37PM
Well here is one of my favorites seems to be better than The TL494
KA3525 SMPS Controller
.I have a question who elts has an over whelming amount of Quad Op Amps from DE soldering old used circuit boards.
Re: Useful, but not well known ICs
Shrad, Fri Sept 20 2013, 02:27PM
do you know of application notes for this one? I have a bunch of them!
Shrad, Fri Sept 20 2013, 02:27PM
Chris Cristini wrote ...
Well here is one of my favorites seems to be better than The TL494
KA3525 SMPS Controller .
Well here is one of my favorites seems to be better than The TL494
KA3525 SMPS Controller
.do you know of application notes for this one? I have a bunch of them!
Re: Useful, but not well known ICs
Chris Cristini, Fri Sept 20 2013, 05:31PM
I can not seem to find any application Notes but with a little bit of searching you could find all the information you would need on Google.
Chris Cristini, Fri Sept 20 2013, 05:31PM
Shrad wrote ...
do you know of application notes for this one? I have a bunch of them!
Chris Cristini wrote ...
Well here is one of my favorites seems to be better than The TL494
KA3525 SMPS Controller .
Well here is one of my favorites seems to be better than The TL494
KA3525 SMPS Controller
.do you know of application notes for this one? I have a bunch of them!
I can not seem to find any application Notes but with a little bit of searching you could find all the information you would need on Google.
Re: Useful, but not well known ICs
Proud Mary, Fri Sept 20 2013, 08:47PM
MAR-6+
DC-2GHz monolithic amplifier.,d.d2k
This is a super little three-terminal Darlington RF amplifier that is very easy to set up and get good results from. It's cheap too!
Proud Mary, Fri Sept 20 2013, 08:47PM
MAR-6+
DC-2GHz monolithic amplifier.
,d.d2kThis is a super little three-terminal Darlington RF amplifier that is very easy to set up and get good results from. It's cheap too!
Re: Useful, but not well known ICs
Thomas W, Fri Sept 20 2013, 09:41PM
2,200 years lifetime before faliure... wow
Thomas W, Fri Sept 20 2013, 09:41PM
Proud Mary wrote ...
MAR-6+
DC-2GHz monolithic amplifier.,d.d2k
This is a super little three-terminal Darlington RF amplifier that is very easy to set up and get good results from. It's cheap too!
Interesting! i wouldnt have any use for it, but il add it up there :)MAR-6+
DC-2GHz monolithic amplifier.
,d.d2kThis is a super little three-terminal Darlington RF amplifier that is very easy to set up and get good results from. It's cheap too!
2,200 years lifetime before faliure... wow
Re: Useful, but not well known ICs
Conundrum, Fri Sept 20 2013, 11:05PM
LM1881, old IC but still used in some set top boxes.
Conundrum, Fri Sept 20 2013, 11:05PM
LM1881, old IC but still used in some set top boxes.
Re: Useful, but not well known ICs
Thomas W, Fri Sept 20 2013, 11:15PM
I dont see any use for that IC at all for anything other then that specific application.... blah, added anyway!
Thomas W, Fri Sept 20 2013, 11:15PM
Conundrum wrote ...
LM1881, old IC but still used in some set top boxes.
LM1881, old IC but still used in some set top boxes.
I dont see any use for that IC at all for anything other then that specific application.... blah, added anyway!
Re: Useful, but not well known ICs
Dr. Dark Current, Sat Sept 21 2013, 09:57AM
NE564: high frequency (50 MHz) PLL. May be useful for some HF SSTCs, where the standard 4046 no longer works well.
Dr. Dark Current, Sat Sept 21 2013, 09:57AM
NE564: high frequency (50 MHz) PLL. May be useful for some HF SSTCs, where the standard 4046 no longer works well.
Re: Useful, but not well known ICs
Inducktion, Sun Sept 22 2013, 12:48AM
LM2578.
They're great for small battery powered buck/boost converters. Works even for two regular alkaline batteries!
Inducktion, Sun Sept 22 2013, 12:48AM
LM2578.
They're great for small battery powered buck/boost converters. Works even for two regular alkaline batteries!
Re: Useful, but not well known ICs
Hazmatt_(The Underdog), Sun Sept 22 2013, 04:42AM
XR2206
ICL8038
MAX038 - Function generator IC's very fun to play with, and old standards for small test equipment.
Hazmatt_(The Underdog), Sun Sept 22 2013, 04:42AM
XR2206
ICL8038
MAX038 - Function generator IC's very fun to play with, and old standards for small test equipment.
Re: Useful, but not well known ICs
Inducktion, Sun Sept 22 2013, 05:25AM
Pretty neat little oscillator chip!
Inducktion, Sun Sept 22 2013, 05:25AM
Pretty neat little oscillator chip!
Re: Useful, but not well known ICs
Alex M, Sun Sept 22 2013, 08:17PM
LM2576 and LM2676.
They are both unisolated DC-DC converter IC's but the difference's are that the LM2676 has an internal FET switch and runs at 260khz, whilst the LM2576 uses an NPN transistor switch and runs at 52khz. Both are rated for 3 amps switch current.
Of-course you could always use an external switch!
But both of them are great linear regulator replacements, and if you really need low ripple an external PI filter can get you well below 5mV of ripple.
Alex M, Sun Sept 22 2013, 08:17PM
LM2576 and LM2676.
They are both unisolated DC-DC converter IC's but the difference's are that the LM2676 has an internal FET switch and runs at 260khz, whilst the LM2576 uses an NPN transistor switch and runs at 52khz. Both are rated for 3 amps switch current.
Of-course you could always use an external switch!
But both of them are great linear regulator replacements, and if you really need low ripple an external PI filter can get you well below 5mV of ripple.
Re: Useful, but not well known ICs
Thomas W, Sun Sept 22 2013, 08:57PM
Updated :) keep giving me more, it helps if you give me the datasheet too (saves me time)
If we get a large enough list, il put it up on the wiki or somthing :)
Thomas W, Sun Sept 22 2013, 08:57PM
Updated :) keep giving me more, it helps if you give me the datasheet too (saves me time)
If we get a large enough list, il put it up on the wiki or somthing :)
Re: Useful, but not well known ICs
Steve Conner, Mon Sept 23 2013, 03:03PM
KA3525 is just a Samsung clone of the OnSemi SG3525. Similar idea to the TL494 (also cloned as the Daewoo DBL494)
The XR2206, ICL8038 and MAX038 are all obsolete as far as I know. I've designed a few DDS-based replacements for them.
I like the LM257x series.
Steve Conner, Mon Sept 23 2013, 03:03PM
KA3525 is just a Samsung clone of the OnSemi SG3525. Similar idea to the TL494 (also cloned as the Daewoo DBL494)
The XR2206, ICL8038 and MAX038 are all obsolete as far as I know. I've designed a few DDS-based replacements for them.
I like the LM257x series.
Re: Useful, but not well known ICs
Thomas W, Mon Sept 23 2013, 05:39PM
Indeed, you can still get ahold of them easly enough for now :)
Thomas W, Mon Sept 23 2013, 05:39PM
Steve Conner wrote ...
KA3525 is just a Samsung clone of the OnSemi SG3525. Similar idea to the TL494 (also cloned as the Daewoo DBL494)
The XR2206, ICL8038 and MAX038 are all obsolete as far as I know. I've designed a few DDS-based replacements for them.
I like the LM257x series.
KA3525 is just a Samsung clone of the OnSemi SG3525. Similar idea to the TL494 (also cloned as the Daewoo DBL494)
The XR2206, ICL8038 and MAX038 are all obsolete as far as I know. I've designed a few DDS-based replacements for them.
I like the LM257x series.
Indeed, you can still get ahold of them easly enough for now :)
Re: Useful, but not well known ICs
Tetris, Wed Sept 25 2013, 03:01AM
Don't look at me, I can make a 555 blink 2 LEDs with my eyes closed, but other than that, I'm left in the dust as far as chips go...
Tetris, Wed Sept 25 2013, 03:01AM
Don't look at me, I can make a 555 blink 2 LEDs with my eyes closed, but other than that, I'm left in the dust as far as chips go...
Re: Useful, but not well known ICs
Alex M, Wed Sept 25 2013, 03:56AM
Me too thanks to your recommendation of them a while back
I like how an extra op-amp can be used to "trick" the IC into supplying a constant current (great for driving those 10 watt+ LED's).
The only reason I mentioned the LM2676 too is that the older LM2576 can dissipate a good few watts when it has to switch higher currents (got one driving some warm white LED strips in my room). The LM2676 (IMO) was a better choice for this application, although I am sure you can much better IC's these days.
Alex M, Wed Sept 25 2013, 03:56AM
Steve Conner wrote ...
I like the LM257x series.
I like the LM257x series.
Me too thanks to your recommendation of them a while back
I like how an extra op-amp can be used to "trick" the IC into supplying a constant current (great for driving those 10 watt+ LED's).The only reason I mentioned the LM2676 too is that the older LM2576 can dissipate a good few watts when it has to switch higher currents (got one driving some warm white LED strips in my room). The LM2676 (IMO) was a better choice for this application, although I am sure you can much better IC's these days.
Re: Useful, but not well known ICs
Chris Cristini, Mon Oct 21 2013, 05:36PM
Single chip offline power supply controllers:
Here is another one I have 5 of them
Chris Cristini, Mon Oct 21 2013, 05:36PM
Single chip offline power supply controllers:
Here is another one I have 5 of them
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