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NVE was featured recently on the Positively Wall Street show on KCEO Radio, San Diego.
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The best tech company in Eden Prairie.
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In May, NVE reported its 11th consecutive fiscal year of record product sales since becoming publicly traded in 2000.
Thanks to our loyal customers and new customers for making it possible. |
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A Battery of Tests
IsoLoop Isolators (even MSOPs)
have demonstrated the ability to withstand a remarkable 800 Vac or 1,130 Vdc between the input and output pins indefinitely without damage (“the endurance voltage”).
That’s the equivalent of 753 D-cells, which would make a flashlight 150 feet long.
For more information, see the Application Corner at right. |
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Featured Product |
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Wide-Body SOIC-16 Isolators
A full eight millimeter external creepage distance for the most demanding high-voltage performance. IsoLoop Isolators offer a full product line in wide-body SOIC packages, providing 2,500 Vrms isolation voltage, 300 Vrms working
voltage, and 800 Vrms endurance voltage (see the Applications Corner below).
Wide-body isolators are available in a variety of input, output, and channel configurations,
as well as a full line of isolated RS-485/RS-422/PROFIBUS transceivers.
Key features include:
• 0.3"-Wide SOIC-16
• 8 mm Minimum External Creepage Distance
• 3, 4, or 5 Channels, or RS-485/RS-422
• Passive or Digital Inputs
• CMOS or Open-drain Outputs
• Up to 125°C (T-Series)
• UL1577 / IEC 61010-2001
More than 25 wide-body SOIC isolators part types are currently
in stock and available for immediate delivery with no minimum order:
Part
Number |
Mbps
Data
Rate |
Tx/Rx
Chan |
Input |
Key Features |
Max.
Temp. |
| IL514 |
2 |
2/1 |
Digital |
DC correct; Output Enable |
85°C |
| IL515 |
2 |
4/0 |
Digital |
DC correct; Optional Ext. Clock |
85°C |
| IL516 |
2 |
2/2 |
Digital |
DC correct |
85°C |
| IL613 |
100 |
3/0 |
Passive |
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85°C |
| IL614 |
100 |
2/1 |
Passive |
Output Enable |
85°C |
| IL715 |
110 |
4/0 |
Digital |
Output Enable |
100°C |
| IL716 |
110 |
2/2 |
Digital |
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100°C |
| IL717 |
110 |
3/1 |
Digital |
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100°C |
| IL715T |
110 |
4/0 |
Digital |
High Temperature |
125°C |
| IL716T |
110 |
2/2 |
Digital |
High Temperature |
125°C |
| IL717T |
110 |
3/1 |
Digital |
High Temperature |
125°C |
| IL260 |
110 |
5/0 |
Digital |
Five Channel |
85°C |
| IL261 |
110 |
4/1 |
Digital |
Five Channel |
85°C |
| IL262 |
110 |
3/2 |
Digital |
Five Channel |
85°C |
| IL3122 |
5 |
RS-422 |
Passive |
32 nodes; 15 kV Bus ESD |
85°C |
| IL3185 |
5 |
RS-485 |
Passive |
32 nodes; 15 kV Bus ESD |
85°C |
| IL3222 |
5 |
RS-422 |
Passive |
Fractional Load (256 nodes) |
85°C |
| IL3285 |
5 |
RS-485 |
Passive |
Fractional Load (256 nodes) |
85°C |
| IL3422 |
20 |
RS-422 |
Passive |
32 nodes; 15 kV Bus ESD |
85°C |
| IL3485 |
20 |
RS-485 |
Passive |
32 nodes; 15 kV Bus ESD |
85°C |
| IL422 |
25 |
RS-422 |
Digital |
Industry Standard |
85°C |
| IL485 |
35 |
RS-485 |
Digital |
Industry Standard |
85°C |
| IL485W |
35 |
RS-485 |
Digital |
RS-485 + handshake |
85°C |
| IL3522 |
40 |
RS-422 |
Digital |
Very High Speed |
85°C |
| IL3585 |
40 |
RS-485 |
Digital |
Very High Speed |
85°C |
| IL3685 |
40 |
RS-485 |
Digital |
PROFIBUS |
85°C |
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Exhibitions |
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 NVE sensors will be on display at one of the largest sensor shows in the world, Sensor+Test 2011, June 7 - 9 in Nürnberg, Germany. NVE will exhibit in cooperation with distributor HY-LINE Sensor-Tech in Hall 12, Stand 610. <Free Registration Courtesy HY-LINE Sensor-Tech>
 The Power Conversion and Intelligent Motion (“PCIM”) show in May was a chance to show off powerful isolators to intelligent engineers in cooperation with distributor HY-LINE Power. RS-485 transceivers and CAN transceivers were especially popular.
Dr. Joe Davies of NVE chaired the “MRAM and Magnetic Logic Devices” and “Magnetization Dynamics and Ferromagnetic Resonance” sessions at InterMag 2011 in Taiwan recently.
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Application Corner |
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Endurance Voltage
The maximum voltage that can be applied between the input and output pins of an isolator indefinitely without damage is called “endurance voltage.” Endurance voltage is typically not specified in data sheets and may be the least well-known high-voltage specification. Nevertheless, it is useful in applications where the isolators are not subject to line voltage transients.
IsoLoop Isolators’ endurance voltage has been determined to be 800 Vrms based on qualification testing. External creepage distance is up to eight millimeters (see “Wide-Body Isolators” above).
Watch on our new video for an explanation:
This battery management system for measuring the voltage of each battery cell of a DC to AC inverter illustrates an application where endurance voltage is important:
Isolated Battery Management System
The last isolation stage is a full 300 V above the controller ground, so the isolator is subject to 300 V between inputs and outputs.
Because the isolators have an endurance voltage of 800 Vrms, or 1,130 Vpeak, the isolators can be expected to withstand up to 1,130 Vdc indefinitely, and will easily withstand the voltages in the circuit above.
<More Info (.pdf; Application Bulletin No. 18)>
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