Thanks, Rob. Hello, everyone. Welcome to this isolated interface presentation. Before we get into isolated interface, I just wanted to introduce the overall TI portfolio of isolation products. So here you can see we have four different portfolios that we are addressing. The first one is the digital isolators and the digital isolators integrated with power, with isolated power.

We'll talk a little bit about this portfolio, what's new in the digital isolator portfolio. But the focus is going to be on isolated interfaces. So here, we combine RS-485 or CAN or I2C or LVDS along with isolation in a single package, which gives you the isolated interfaces. The focus today is going to be on isolated RS-485 and isolated CAN.

The third portfolio from TI is the isolated gate drivers. So if you are driving any motors, you have any H bridges that you're driving with IGBTs, silicon carbide FETS or MOSFETs, then that's the portfolio to look at.

And finally, if you're doing any voltage, current, or temperature measurements in any of these motor drive systems, isolated ADCs and amplifiers would be required for that. And that's the fourth portfolio that we play in.

So let's go to the digital isolator section. In the digital isolators, the latest portfolio that we have-- or the latest family that we have added is the ISO70xx family. This is an ultra low-power digital isolator. And the current consumption of this is about 0.1 milliamps. So about 100 microamps at 1 megabits per second.

So if you're looking at applications where the power consumption is critical, such as 4 to 20 milliamp loops or field transmitters, any kind of sensors where you have to keep the current under control, then this would be the family to look at. The data rate of this family goes up to 4 megabits per second.

If current is not a concern, and you want higher isolation ratings, then we have the 77 and the 78 family. The 77, the ISO77 family, would be the first family I would look at. All the parts here go up to 100 megabits per second. And the isolation rating is up to 5 kVrms, and we have all the way up to six channels of isolation. It's available in different packages here.

If you want higher isolation ratings than 5 kVrms, then we have the 78 family, which goes up to 5.7 kVrms. This family has a unique package. Also, it has extra-wide body DWW package. So if your application is being used or end equipment is being used at higher altitudes where the pressure is low and you need wider packages or wider creapage and clearance, then this device would be the right fit there.

So let's get into the first isolated RS-485 device. The ISO14xx, and xx here means that there is a family of devices. I'll go over what the different nomenclature and the numbers are for the xx. But this family is a noise-immune 5 kVrms basic and reinforced options for isolated RS-485 or RS-422 transceivers.

So here are some of the features for this family. This meets the RS-485 standards for that TIA or EIA-485 is completely met by this family. At 5 volts, it also meets Profibus. So if you are following the Siemens protocol of Profibus, this will comply with that standard of the extra Vod that's needed.

This does have multiple speed options. So we have the low-speed options as well as the high-speed, all the way up to 50 megabits per second. Available in both the half duplex, where you want to reduce the number of wires, or it's available in also the full duplex configurations. On

The logic side, which connects to the microcontroller, the voltage can go from 1.71 to 5.5 volts. So different microcontrollers can be used. So today, typically we have seen 3.3 and 5 being the most popular voltages on this side. But in case in the future, you are using 2.5 volt microcontrollers or 1.8, then you do not need to change this device.

The inputs are compliant with the 1.8 and the 2.5 volts also. Whereas on the bus side, it's either a 3.3 volt or a 5 volts RS-485. And this device meets both those. So you can have all the way down to 3 volts power supply or all the way up to 5.5 volts power supply.

It does have the failsafe receiver for any of the bus open, short, and idle modes. And it supports the standard 256 nodes on the bus. So 1/8 unit load. One thing with the TI isolation, the ISO77 family, which has very good common mode transient immunity, was used inside this chip along with the RS-485. So this device also has very good common mode transient immunity.

And basically, what this says is if there is a lot of noise on the high-voltage side, then how much of that gets rejected and does not show up on the low-voltage side? So higher the specifications for CMTI, the better is the noise immunity of that device. All these devices meet the industrial temperature range of minus 40 to 125 degrees C. And as I mentioned, these are 5 kVrms isolators or isolated RS-485 devices.

One additional or key feature of this device is that there is integrated ESD protection inside this device. We have 30 kV HBM, human body model. The contact discharge is 16 kV, and it meets EFT, the fast transients of 4 kV. So if you have any external components that you are using to protect the RS-485 devices, now you can look at this and see if this is enough for your application. And you can eliminate those components.

It comes in a standard 16 DW package. We do have some collateral that's available on our website, ti.com. One key collateral I would like to highlight is the how to isolate signal and power. Typically, for isolated systems, when you're moving from RS-485 nonisolated to isolated systems, one big change is that now you have two power supplies. You have a VCC1 and a VCC2, and they need to be isolated. Just shorting them will not do, because then the whole purpose of isolation is lost.

So how do you create this isolated power supply? We have different solutions, both discrete and integrated. So that would be a good tech note or article that you can read to see how you can design this complete system for both the signal isolation and also the power isolation. There are some other frequently asked questions about the top seven questions that we get about isolated RS-485. So maybe you may want to look at that also just to see if you are encountering any problems. Then does that answer some of the questions you have?

What we have here is the table of all the devices. So as I mentioned, the xx here stands for the different types of devices. So the third digit here, the 1, stands for 500 kilobits per second speed. The 3 here is for the 12 megabits per second, and the 5 is for the 50 megabits per second. So it's a speed identifier. And the last digit here is the half duplex versus full duplex. So if it's 0, it's a half duplex configuration, and if it's 2, it's a full duplex configuration.

We do have reinforced isolation and basic isolation. And the main difference here is on the right side table, you can see that surge test, which is done as per VDE. so if it's done at more than 8 kV, then it falls into the reinforced category. So here, we have 10 kV peak that's achievable with the standard devices without the B in the name. And if it's B, which stands for basic, then those devices meet up to 6 kV peak surge.

But as far as the isolation rating, the 5,000 volts and the working voltage of around 1,000 volts rms, that is same for both these devices. So whether you use a reinforced device or a basic device depends on what your search specification is that you want to meet. And then you can pick one of these, whether it's a B device or a non-B device. All these come in a 16 DW package. They have the same pin out.

So a little bit more details here on the features. So the first thing is that this 16 DW package for isolator RS-485 has been a standard in the market for a very long time. And these devices, the new family, is also pin compatible with the competing devices in the market. And also to our previous generation ISO30868x family that was available.

There is no board redesign required. So you can just drop this part in, either to replace the existing devices from competition or our own earlier-generation devices. I mentioned the CMTI is very good for these devices. And the main reason for this is the architecture that's used for the isolation is the on/off keying architecture. That is, it's a different architecture as compared to the H-based architecture, which was used in the previous generation.

The H-based architecture has problems when it comes to input noise. There is a possibility of that noise getting identified as an H and then propagating through the device, whereas with the newer devices, this on/off keying is more robust. And that's what helps with the common mode transient immunity, basically reducing the noise showing up at the high-voltage side coming into the low-voltage side.

I already spoke about the wide logic supply range, the 1.8, 2.5, 3.3, and 5 volts. All can be addressed with this device. The ESD, very high ESD protection. And with proper design and layout, class A EFT can be achieved with this family.

Of a Profibus, the requirement is 2.1 volts of the Vod, the differential voltage. And that's available at 5 volts from this family. The bus side voltage, it supports both 3.3 and 5 volts. So you do not need an LDO on the bus side. And higher working voltage, this is of key benefit to the motor drive and solar and motor applications, where you are looking at not just the basic voltage levels but the higher reinforced voltage levels. And finally, the industrial temperature range. So it goes all the way to 125 degrees C.

A little bit more to elaborate on the IEC ESD specifications. So as I mentioned, with an isolator device, you have the two power supplies, which means you also have two grounds. And your ESD can be applied with respect to either the ground 2, which is shown here, which is on the same side as where the ESD strike is coming in, or it could be applied across the ground 1, which is basically the isolation barrier is going to take the ESD strike.

So there are two different specifications. The first one, with respect to ground 2, which is the same side, we pass 16 kV. And this is mainly because we have this integrated protection or the ESD diodes here. What would happen is, if you had some external components here that you were using for protection, now those can be eliminated if you need to pass the 16 kV.

If you need to pass higher, then you would have to add the components. But 16 kV, you do not need any external components. So it simplifies the number of components on the board. The placement cost reduces and overall system cost reduces.

When you consider the ground 1 across the isolation barrier, then we are able to support 7 kV, more than 7 kV of ESD. And that is again because of the silicon dioxide isolation barrier that's pretty strong and that's able to withstand these high ESD strikes. So that was the first part.

The second device that I'm going to talk about is the ISO1500. So this is a 3 kVrms. It's just a basic isolated RS-485/RS-422 transceiver. The unique thing about this is it comes in an ultra-small DBQ package. As you notice here, there is no x in the name. So this is a single device.

This is ideal for any of the energy meter applications or where you have space constraint. Then the ultra-small QSOP package. This package is only 4.9 millimeter by 6 millimeter, as compared to the DW package, which is 10.3 by 10.3. So that's a huge difference in the size. This device meets 1 Mbps.

So some of the energy mid application is one application where the speed is not more than a few kilobits per second, hundreds of kilobits per second. So this makes it ideal for those applications. It's a half duplex transceiver. Again, with the trend of reduced cost. Most of the customers would look at only two wires and not four-wire communication. The logic side. We go again on this one all the way down to 1.8 volts.

But on the bus side, this is limited to a 5 volt voltage level. It does have all the failsafe receivers. It supports the 256 nodes, the same CMTI specifications as the 1400 family. And the temperature range goes to 125. With the smaller package, also it limits the amount of ESD that you can add. So in this case, it's lower as compared to the previous device that I showed you. You can consider this as almost half. So in the previous one that was 30 kV HPM in the 1500 it's 16 kV. You have 7 kV EIC contact discharge. And then two kV EFT, which again half of what you saw on the 1400.

So if you need higher performance than the 14xx family, if you are concerned about just the space, then go with the 1500 family. An isolation rating for this is 3 kVrms. Again, there is a bunch of collateral here that you can refer to.

Here is an example showing if this solution were implemented discreetly. Typically, we have seen in the market a couple of optocouplers being used along with discrete RS-485. So typically, you have two forward signals, one to enable, one for the TX1 for the receive. And then there's some additional components that are connected here.

If you compare this with a 16 DW package, which is a 14xx, or it could be any of our older generation ISO308x family or the competition device, then the DW package gives you saving as compared to all these discrete components. But the advantage of the 1500 is that this will save space up to 85% as compared to the optocoupler-based solution and even 50% as compared to the 16 DW package. So definitely, this reduces the space by a huge amount. And then there is also some content actually comparing this, and this is available in this technical document.

The next device that I will talk about is the isolated CAN. This is an EMC optimized isolated CAN. This has 70 volt bus fault protection. And it supports CAN FD. That's flexible data rate. Again, going through the features of this device, it does meet the CAN standard. The CAN typically for industrial applications was earlier only 1 megabits or even lower, 40 kilobits per second.

But we are seeing not just in automotive, but even in industrial flexibility, the rate coming up. More and more customers want to transmit and receive data faster. So this device does meet both the standard modes, data rates, and also the flexible data rate up to 5 Mbps.

Along with the data rate, one key advantage is the fast loop time. So anytime you are doing any feedback control, you want the data to go through the CAN system and come back. And that here is about 152 nanoseconds typical, 215 nanoseconds maximum for voltage greater than 2.5 volts. The bus fault protection is 70 volts. I'll explain this in a little bit of detail in the next couple of slides.

ESD, we have 8 kV ESD on the bus pins. It uses the same digital isolator used in the isolated RS-485. So we have good CMTI performance of 85 kilovolt per microsecond. And the common mode range is up to 30 volts. So if this CAN node is getting connected to another CAN node, and if there is a ground difference or ground potential difference of up to 30 volts, then the CAN communication will still happen without any problem. This is, again, highest in the industry today. The next best is about 25 volts.

It does have idle passive. So when it's unpowered, it becomes a high-impedance IOs. It does have dominant time-out protection. So that way, one node that's stuck is not dragging the whole system down. The isolation rating for this family, it does meet 5 kVrms isolation and the 10 kV surge, as per VDE.

When you look at the supply voltages on the logic side, on the microcontroller side, again you have the option of going down all the way to 1.8 volts on the low side and 5 volts on the high side. And power supply on the secondary side or the high-voltage side of the CAN bus side is about 5 volts. It's 5 volts.

And this is available in two packages. The 16 DW is the industry standard package, similar to the RS-485. But we also have released this device in an 8 DWV small package. The temperature range is minus 40 to 125 also, meeting all the industrial applications.

So here is a chart of all the different options. As you can see, that we also have a B version here, which means it's a basic device. And again, the difference is the same. It's only in the surge specification. So if it's a basic device, it meets 6 kV peak. There is a reinforced device meets 10 kV peak for the surge voltage. The transient voltage for all these devices or the V ISO is 5 kVrms, and the working voltage is 1 kVrms for all these devices.

As you can see from the image here, the 16 DW package, which is 10.3 by 10.3. So it's the standard. But there is a lot of no connect pins that are on this package. And CAN just needs two lines, one TX, one RX, and one CANH, one CANL.

So we did come up with this smaller package. It's industry's first. The DWV package is the smallest reinforced isolator package-- isolated CAN package. And the size here is 11.5 by 5.85.

So going through the different features, the first feature we talk about the highest working voltage. The 1 kVrms, it increases the device lifetime. This chart here just shows the lifetime curve or the projected lifetime curve of the insulation, which is basically the silicon dioxide dielectric that we have used. And the test that we do here is the TDDB testing. It's time dependent dielectric breakdown. So we do accelerated testing on these parts. We increase the voltage.

And we see when the device fails at very high voltages, and then it's extrapolated using a formula. And then you find out what would be the lifetime of these devices when used under normal operating conditions. Typically, say the working voltage is 400 volts or 1,000 volts. Then under those conditions, just the dielectric, the silicon dioxide, has a lifetime of over 270 years, which is way more than what most of the industrial or automotive applications would be using these devices for. So the silicon dioxide provides a very stable and robust dielectric, and that's why it was used by TI for all our isolators.

Also, this lifetime, it reduces the factory downtime, because now you're not worried about the isolation breaking down. It's providing a robust shield between your high-voltage side and the low-voltage side. And also this device, all the TI isolation devices, are manufactured in a controlled environment. So it has very high quality.

This point here on the right side, we just showed the plot of what the input, the DX, RX, and also the CANH, CANL lines under the 5 Mbps speed. So this is operating at 5 Mbps, just showing the operation here. And then the loop delay is 215 nanoseconds maximum, which allows increased communication throughput.

The third one here is the emissions and immunity. When you're talking about CAN performance, one of the reasons why CAN was picked in automotive is because it's a robust standard by itself, but also you need to look at what are the emissions coming out of this device? And it's very critical for a lot of applications to meet the EMC specifications.

What we looked at is the most stringent one. If you compare the CISPR 22, which typically industrial applications look at, and you compare it with the CISPR 25 or some of the Zwickau testing, which is done for automotive specifically, this Zwickau standard is the most stringent amongst all.

So here is a plot showing the limit for one of the automotive standards and then the CAN emission performance for the ISO1042. And it does meet the standards. We do have test data with the CISPR 22 also. And it does pass that. And it compares much better than all the competitors. We have seen the other devices fail the specification, but the ISO1042 does pass it. I spoke about the 85 kilovolt per microsecond CMTI and also the 8 kV ESD. So just reiterating those here.

Lastly, the bus fault protection. Why is this important? In case you have multiple lines, like say the CANH, CANL lines are running through the same chassis or close to any of the power supply lines, and there is a short that happens from that voltage power supply lines to the CANH or CANL lines, you do not want the CAN device to get damaged. And we have heard in some applications the need for higher and higher voltage levels here.

Typically, it's been 12, 24, or 48, depending on the standard voltages that are used both in industrial and automotive applications. But this device provides you enough margin with the industry's highest level, up to 70 volts. So if there is any voltage that's applied to the CANH or CANL lines, up to 70 volts, this device will survive. And for each of these parameters, we do have some collateral which has more details and plots. So feel free to look through those.

Similar to the RS-485, we do have isolating the CAN for data and power. So there is a reference design. This is an automotive-specific reference design, but the same devices are available for industrial applications. So this may be a good one to look at, because this actually has the schematics, the layout, and also the plots of all the tested data. So you can have a look at how this complete system performs without actually testing it.

And then the isolator CAN systems without compromising performance or space, this highlights each of those features that I just explained. We do have some videos, a demo, and also a couple of blogs, one of them about the power and one of them reduced emissions, where you can see the performance of this device with different standards.

So we have different isolated CAN devices in our portfolio. The earlier generation, we had the ISO1050DUB, which was in DUB package. If we look at the area of this, it was about 95 millimeter square. We also had the standard DW package, which is again in 100 millimeter square. Today, we have two different packages for the 1042, the DWV package that I mentioned. So if you compare this, the area is 67.28. So it's 30% smaller as compared to the DUB package and about 37% smaller when you compare it to the DW package. And we also have the 1042 in the DW package.

Another thing to note is that these are not pin-to-pin. So you will not be able to use the DW package on the 1042 and just drop it in with the 1050 DW. So there will be some lines that you'll have to work, especially this RX and TX, which are flipped here. So there are differences. But definitely with the DWV package, it gives you room to change the layout and shrink the board. Overall, your system becomes smaller.

That's all I had for the isolated interfaces that we have released. So all these are available on the web, the isolated RS-485, isolated CAN, and also the digital isolator, the ultra low-power ISO70xx family. So feel free to look through those. And with that, I will turn it to Rob.