AO4407 DATASHEET PDF

AOA 30V P-Channel MOSFET General Description Product Summary The AOA uses advanced trench technology to VDS = V provide excellent RDS(ON), and ultra-low low gate charge ID = A (VGS = V) with a 25V gate rating. This device is suitable for use as RDS(ON) < 11mΩ. The AO uses advanced trench technology to provide excellent RDS(ON), and ultra-low low gate charge with a 25V gate rating. This device is suitable. AO datasheet, AO circuit, AO data sheet: AOSMD - 30V P- Channel MOSFET,alldatasheet, datasheet, Datasheet search site for Electronic.

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Reading mosfets in circuit can be tricky. Make sure the CPU is removed or many n-channel fets will read shorted. A question I have however, is why is it some in circuit tests reveal partial forward and reverse voltage Even with the fet lifted on one side, testing the pads from source to drain and vice-versa have these same readings. It’s not a complete short Once you move past the charging circuit, its extremely hard to trace at least it is for me. Any ideas on how or why this is happening? It drives me crazy probing these things sometimes.

Also, is voltage across the fet determined solely by the gate voltage? I ask because sometimes I’ve read 19v at drain while only 5v is at the gate but yet on others, the drain voltage is equal to whats being applied to the gate.

The FET should only read one way in diode mode, since it basically a diode that is turned off or on. The GATE voltage may be different based up on the part specs. If the power is too low, it will not charge.

Getting In Too Deep: Tips on Testing MOSFETs

This also accounts for incorrect power supplies not working or able to turn on particular models. FETS also come in different current ratings, so a DV charger will not charge a DV because a 65w power supply will not charge a 90w unit. If datwsheet does charge the battery, the charge will not have sufficient current to the LiION particles.

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So you get a complete catalog of various FETS at different ratings in amperage, voltage, and configurations. P-Channel, N-Channel and dual configurations based up requirements of the circuit, and trace lines.

Sir, I just want to say that we started a Dataseet repair shop and you have helped us infinitely.

I can’t express datashheet gratitude to you for sharing your knowledge. Hopefully I can save you some of the headaches that I had. Feel free to chime in. Hello just curious if an ao can be a suitable replacement for an ao I had no power or lights replaced the pq and now the charger light blinks and still no power supply satasheet or power up. Thanks your bolg is very helpful. They have considerably different values.

You can also download the datasheet if need to print out. Thanks for the response, I Will get an ao out of another board if I can find one and post my results.

AOA Datasheet PDF – Freescale

I replaced With an AO, still the say results, Something weird happens now, when the plug is unplugged the led on the dc jack blinks real fast. Thanks for the help. Hi Lindasy and thanks for the kind words. Could you contact me directly. I just may be overly cautious.

I eatasheet that flux is used. I has ratasheet purposes. When no flux is used, the solder may not ‘jump over’ and make contact with board, or jump from board to GPU. With the number of balls under the chip, it is difficult to get it enough heat evenly before scorching the topside of the GPU essentially damaging it.

I guess in a mental image it is similar to the way magnets attract to each other when too close. The same thing happens when two heated solder joints ‘bridge’ and connect to each other. Flux helps bridge that space between them and makes the contact happen.

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Thanks Life for the kind words. Just trying to help others see things a little clearer.

AO4407 Datasheet

With some training, it’s not that complex to repair most problems. Great pic with mosfet function http: Thnx for helping us all out. I have a dv7 with the exact power issue you described in a different post but not daatasheet same mosfet.

The diode test on pu fails Looks like part no Could this be the problem?

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I can’t find schematics anywhere I cannot repair laptops for you via the internet, I can only answer xatasheet related to posts. This is because I have not had experience on every motherboard that is out there. If you do need it repaired. The arrows shows the direction for reference when using a ao447 to test. This is usually the case with U. National Semiconductor, Fairchild and others. But it is not a hard and fast rule with some Chinese manufacturers, and may need to check the datasheet before assuming they will be the same.

AO stands for Alpha and Omega Semiconductors part. Posted by Hoosier Newman at 5: Mayo Hardware Tue Feb 15, Shawn Hustle Russell Wed Feb 16, Mayo Hardware Wed Feb 16, Andy Tue Mar 08, Mayo Hardware Tue Mar 08, Andy Wed Mar 09, Mayo Hardware Tue Mar 22, Mayo Hardware Sat Apr 23, Mayo Hardware Tue May 03, Me Tue Jun 21, Romar Sat Jul 27, Jessa Prado Sat Nov 28, Only a member of this blog may post a comment.

Newer Post Older Post Home. Imagine the flow direction Source to Drain. Imagine the flow direction Drain to Source.