high side load driver using FAN73711MX
Tinfoil, I created an LTspice circuit of one of the reverse input protection methods I had in mind and simulated it under both normal and reverse supply connection conditions (see attached picture and...
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High-side load driver with reverse supply connection protection.
Tinfoil, I have updated the schematic, simulated it, and wired it on breadboard at my desk. It appears to work great, and the LTspice simulation even pretty much agrees with what I measured with an...
View ArticleHigh-side load driver with reverse supply connection protection.
The problem we have is the board was designed for high side driver. Right now we need to dead bug this board to test the rest of our circuitry. Fairchild is sending us a driver that should do the...
View ArticleHigh-side load driver with reverse supply connection protection.
Tinfoil, Here is the Bill of Materials for the prototype I wired up and tested on my desk if you wish to verify the circuit concept will function properly on breadboard first. The reference...
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Re: High-side load driver with reverse supply connection protection.
TinFoil, Here is a small revision of my previously posted Draft2 schematic. With the Draft2 circuit there was the severe reverse supply connection transient I showed that required the use of a power...
View ArticleRe: High-side load driver with reverse supply connection protection.
This is a nice solution to that seems to work. But the only issue that concerns me is that the pfet draw more current on the high end which is a concern on these circuits. The other issue is that...
View ArticleRe: High-side load driver with reverse supply connection protection.
Hi TinFoil, I guess I'm not completely clear about what you are describing, so please bear with me in this post because it will be a little lengthy. I'm assuming you are responding about the Draft3...
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Re: High-side load driver with reverse supply connection protection.
Even if the P fet has and equal on resistance to the n fet forces beyond my control lock me into the FDD2572. Now if we can drive this using p fets I am all for that. The problem is I need to keep...
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Re: High-side load driver with reverse supply connection protection.
TinFoil, Excellent find on that family of Maxim ICs! That's exactly the sort of IC I had looked for and failed to find before I went down the path of designing that Draft3 discreet solution for the...
View ArticleRe: High-side load driver with reverse supply connection protection.
Yep Maxium suggested it and supplied a demo board. It worked out pretty nice. Got out ranked and the group is going with a linear tech hot swap LT456. I really wan#ted ##to use the Maxium chip...
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