Is this a 2 input gate (one inverted) with two outputs, one opposite the other? Don't know what this does or how to use it. Teach me something.

 

View attachment 365508
Is this a 2 input gate (one inverted) with two outputs, one opposite the other? Don't know what this does or how to use it. Teach me something.

Where that image comes from?

 

View attachment 365508
Is this a 2 input gate (one inverted) with two outputs, one opposite the other? Don't know what this does or how to use it. Teach me something.

Your interpretation is the same as I would assume. The complementary outputs are driving a half-bridge.

 

The topmost line is Vdd, the bottommost is ground and the middle is its single output.
Without further information, this appears to me to be a Mosfet driver, which could use either negative-asserted or positive-asserted input signals.
But as ATF requested, you have to provide far more context for us to give an accurate answer, otherwise it is only speculation.

 

the question was about gate symbol only and this is not ambiguous or open to interpretation.

it is simply a gate with two inputs and two outputs. dual outputs are common when complementary value is needed. think of it with gate with single output and additional inverter.
following two circuits are equivalent. one on top is just a more compact representation.

 

The descriptions of the fuction of the symbol are correct, BUT it is not likely that it is, or will be, a standard LOGIC LEVEL component commercially available. REALLY, to be useful, it will need more connections to the MOSFET devices itis driving. so it is not likely to be found in any logic device manuals, since it is certainly not going to be a common logic component, UNLESS it is in the "special applications" section that some device books have.
Now I see that it CERTAINLY IS A "SPECIALFUNCTION" device made by IR.it is an IR2110 driver IC.(from the link in post #7)

 

Where that image comes from?

https://tahmidmc.blogspot.com/2013/01/using-high-low-side-driver-ir2110-with.html
Bottom right corner of the Functional Block Diagram: Figure 1

 

It is not that difficult to make or edit logic symbols! The CADprograms that I have used allow breaking symbols and editing them and then converting them back into symbols, instead of just collectios of line segments. That can be very handy.

 

https://tahmidmc.blogspot.com/2013/01/using-high-low-side-driver-ir2110-with.html
Bottom right corner of the Functional Block Diagram: Figure 1

Gracias.

 

IC internal schematics have all kinds of non-standard decals, symbols, etc. In this case, the two FETs on the right are a non-inverting output stage. The N/AND-thing is a representation of logic performed by stuff you don't need to know about. If you draw a line down through the middle of the gate, it's core operation is that of an AND - only one combination of inputs produces a logic-true output. One of the inputs has an inversion bubble, but that's the same as showing a normal gate with the output of an inverter driving one input.

Similarly with the output, think of it as an AND gate output driving one transistor directly and driving the other transistor through an inverter.

When the UV-Detect input is low and the Delay input is high, output LO will be high. All other input combinations result in a low output.

ak

 

Thanks. It's all been an exercise in learning something I hadn't previously understood.

 

BTW . . .

For that output stage, note that both FETs are n-channel. The upper FET is operating as a non-inverting source follower, and the lower FET is operating as an inverting, saturated switch.

ak