ORDERING INFORMATION. See general marking information in the device marking section on page 11 of this data sheet. DEVICE MARKING INFORMATION. 1. A Switching Voltage Regulators are available at Mouser Electronics. Mouser offers inventory, pricing, & datasheets for A Switching Voltage. DESCRIPTION. The MCA series is a monolithic control circuit delivering the main functions for DC-DC voltage converting. ORDERING INFORMATION.

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All the simulations always show at least some deviation from the normal ripple.

A Datasheet(PDF) – Estek Electronics Co. Ltd

For a better experience, please enable JavaScript in your browser before proceeding. It seems hard to get an external Bluetooth device to work too, so im looking for other ways. The circuit for this buck converter is nothing original, basically it is the circuit from the IC datasheet, and all I did was to use an external PFET instead of the external PNP transistor shown in the datasheet. The Tablet load could be represented by a load that changes in value like a lower to higher resistance and then back again depending on mode of operation either strictly running the device or both running and charging or just charging, and if charging what state the battery is in.

Well, datashet am aware of how a peak current limit 34036a in regulators but that’s not really the kind of regulation i would need for this project. What i’d like to do is use the Android Tablet the same way, even if it means creating new software for the Android environment rather than Windows. Just an update for MrAl, re an earlier conversation where I was going to build a 6v 10Ah sealed lead acid battery charger for a robot project.

But what it doesnt do is read RS But google Mosfet turnoff circuits. It doesnt have that built in 34063w im not sure if it ever will. Replacement Transformer Started by ncag Today at 7: Datasheets, Manuals or Parts. Replacing a 4 pin leaded inductor with a 2 pin Started by gkmaia Yesterday at Hi Mr AL, thanks.


So with the parts values I chose it was peaking on the current limit and in sync with the inductor ripple and the internal oscillator. I started a new thread about this subject a few days ago: 43063a take it you can write tablet apps like a program to display the voltages? Media New media New comments Search media.

Hi MrRB, Oh yeah pretty nice! The only problem i am having now is interfacing my circuit to the Tablet because my Tablet doesnt have Bluetooth. I always meant to try a PIC as feedback for voltage regulation but never got around to it. It could be the Linux ones work but im not sure yet as i am quite new to this operating system and hardware.

34063, 340635, 34063A

But thanks anyway and maybe i’ll use something from it. Inspriation come from ETO member Mr Al who mentioned his interest in a high efficiency 5v supply to power his Tablet PC during power blackouts etc, see his thread here; http: Let me elaborate just a little. That’s basically good when we have a constant load. I was thinking of an entire inverted scheme, but this looks interesting too.

What other interfacing options does the tablet have?

So could you do satasheet quick scope shot of this thing in voltage regulation? Here’s how the board turned out, tidied up a bit and neat enough to be buried deep in a robot chassis. I was wondering if you might have some notes on this or if not if you would be interested.

That would be very cool, especially if it 3406a just the one USB lead. To participate you need to register. That would be nice to see too and i could compare with my notes. Im going to be looking into this more and finally i’ll be building up the circuit. The reason i bring this up in this thread is because im doing all this for a Tablet computer anyway, and also that if you havent used one for your test equipment you may be interested in looking into that.


It is shown for a N-chan Fet, reverse dahasheet diode and transistor polarity. I added a brass angle shim and large sloder blob to cool the PFET which now never gets much warmer dqtasheet body temp. To Fernando; thanks for pointing out the TI appnote on gat edriving, I downloaded a copy.

It went together pretty quick in about an hour, I think it took a couple more to write it up and photos, scan the schematic etc. Then it slowly adjusts PWM to keep battery voltage at the correct regulation and also limit current during the initial bulk charge to 1. This actually reduces the length of the on period. It’s basically discontinuous, or very close to it, and quite erratic looking. Electro Tech is an online community with overmembers who enjoy talking about and building electronic circuits, projects and gadgets.

Hi MrRB, Well, i am aware of how a peak current limit works in regulators but that’s not really the kind of regulation i would need for this project.

34063A PDF Datasheet浏览和下载

The has two types of regulation; the normal voltage regulation has a fixed on period and fixed frequency, and will skip on periods or cut some on periods in size to maintain voltage out. The small Tablet computers make an exceptionally nice base for a number of different pieces of test equipment, a multi channel volt meter just one example. These are stacked so to get battery voltage it reads the current then subtracts that datssheet from the voltage to give true battery voltage.

You might be able to get similar specs in something convenient like a TO pack but since it doesn’t need heatsinking you could use any package really.