ETC LT41050T

IL41050
Isolated High-Speed CAN Transceiver
Functional Diagram
Features
S
CANH
TxD
RxD
CANL
IL41050
VDD2 (V)
TxD(1)
S
CANH
(2)
CANL
Bus State
RxD
4.75 to 5.25
↓
Low
High
Low
Dominant
Low
4.75 to 5.25
X
High VDD2/2
VDD2/2
Recessive
High
4.75 to 5.25
↑
VDD2/2
Recessive
High
X
VDD2/2
<2V (no pwr)
X
X
0<V<2.5 0<V<2.5 Recessive
High
2>VDD2<4.75
>2V
X
0<V<2.5 0<V<2.5 Recessive
High
Table 1. Function table.
Notes:
1. TxD input is edge triggered: ↑ = Logic Lo to Hi, ↓ = Hi to Lo
2. Valid for logic state as described or open circuit
X = don’t care
•
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•
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•
•
Single-chip isolated CAN/DeviceNet transceiver
Fully compliant with the ISO 11898 CAN standard
Best-in-class loop delay (180 ns)
3.0 V to 5.5 V input power supplies
>110-node fan-out
High speed (up to 1 Mbps)
2,500 VRMS isolation (1 minute)
Very low Electromagnetic Emission (EME)
Differential signaling for excellent Electromagnetic Immunity (EMI)
30 kV/µs transient immunity
Silent mode to disable transmitter
Unpowered nodes do not disturb the bus
Transmit data (TxD) dominant time-out function
Edge triggered, non-volatile input improves noise performance
Bus pin transient protection for automotive environment
Thermal shutdown protection
Short-circuit protection for ground and bus power
−55°C to +125°C operating temperature
0.15" and 0.3" and 16-pin JEDEC-standard SOIC packages
UL1577 and IEC 61010-2001 approved
Applications
•
•
•
•
Noise-critical CAN
Partially-powered CAN
DeviceNet
Factory automation
Description
The IL41050 is a galvanically isolated, high-speed CAN (Controller
Area Network) transceiver, designed as the interface between the
CAN protocol controller and the physical bus. The IL41050 provides
isolated differential transmit capability to the bus and isolated
differential receive capability to the CAN controller via NVE’s
patented* IsoLoop spintronic Giant Magnetoresistance (GMR)
technology.
Advanced features facilitate reliable bus operation. Unpowered nodes
do not disturb the bus, and a unique non-volatile programmable
power-up feature prevents unstable nodes. The devices also have a
hardware-selectable silent mode that disables the transmitter.
Designed for harsh CAN and DeviceNet environments, IL41050T
transceivers have transmit data dominant time-out, bus pin transient
protection, thermal shutdown protection, and short-circuit protection,
Unique edge-triggered inputs improve noise performance. Unlike
optocouplers or other isolation technologies, IsoLoop isolators have
indefinite life at high voltage.
IsoLoop® is a registered trademark of NVE Corporation.
*U.S. Patent number 5,831,426; 6,300,617 and others.
NVE Corporation
11409 Valley View Road, Eden Prairie, MN 55344-3617
REV. F
Phone: (952) 829-9217
Fax: (952) 829-9189
www.IsoLoop.com
©NVE Corporation
IL41050
Absolute Maximum Ratings(1) (2)
Parameters
Storage temperature
Ambient operating temperature
Symbol
TS
TA
Min.
−55
−55
DC voltage at CANH and CANL pins
VCANH VCANL
Supply voltage
Digital input voltage
Digital output voltage
DC voltage at VREF
Transient Voltage at CANH or CANL
Electrostatic discharge at all pins
Electrostatic discharge at all pins
VDD1 , VDD2
VTxD , VS
VRxD
VREF
Vtrt(CAN)
Vesd
Vesd
Typ.
Max.
150
135
Units
°C
°C
−27
40
V
−0.5
−0.3
−0.3
−0.3
−200
−4,000
−200
6
VDD + 0.3
VDD + 0.3
VDD + 0.3
200
4,000
200
V
V
V
V
V
V
V
Max.
5.5
5.25
Units
−12
12
V
2.0
2.4
2.0
0
−8
−55
VDD1
VDD1
VDD2
0.8
8
125
1
Test Conditions
0 V< VDD2 < 5.25 V;
indefinite duration
Human body model
Machine model
Recommended Operating Conditions
Parameters
Symbol
VDD1
VDD2
VCANH
VCANL
Supply voltage
Input voltage at any bus terminal
(separately or common mode)
High-level digital input voltage (3) (4)
Low-level digital input voltage (3) (4)
Digital output current (RxD)
Ambient operating temperature
Digital input signal rise and fall times
Min.
3.0
4.75
VIH
VIL
IOH
TA
tIR, tIF
Typ.
Test Conditions
V
VDD1 = 3.3 V
VDD1 = 5.0 V
VDD2 = 5.0 V
V
V
mA
°C
μs
VDD1 = 3.3V to 5V
Insulation Specifications
Parameters
Creepage distance (external)
Barrier impedance
Leakage current
Symbol
Min.
8.08
Typ.
Max.
> 1014 || 7
0.2
Units
mm
Ω || pF
μARMS
Test Conditions
240 VRMS, 60 Hz
Safety and Approvals
IEC61010-2001
TUV Certificate Numbers:
N1502812 (pending)
Classification: Reinforced Insulation
Model
IL41050
Package
SOIC (0.15" and 0.3")
Pollution Degree
II
Material Group
III
Max. Working Voltage
300 VRMS
UL 1577
Component Recognition Program File Number: E207481 (pending)
Rated 2,500VRMS for 1 minute
Soldering Profile
Per JEDEC J-STD-020C
Moisture Sensitivity Level: MSL=2
Notes:
1. Absolute Maximum specifications mean the device will not be damaged if operated under these conditions. It does not guarantee performance.
2. All voltages are with respect to network ground except differential I/O bus voltages.
3. The TxD input is edge sensitive. Voltage magnitude of the input signal is specified, but edge rate specifications must also be met.
4. The maximum time allowed for a logic transition at the TxD input is 1 μs.
2
NVE Corporation
11409 Valley View Road, Eden Prairie, MN 55344-3617
Phone: (952) 829-9217
Fax: (952) 829-9189
www.IsoLoop.com
©NVE Corporation
IL41050
IL41050-3 Pin Connections (0.15" SOIC Package)
1
VDD1
VDD1 power supply input
2
GND1
VDD1 power supply ground return
3
TxD
Transmit Data input
4
RxD
Receive Data output
5
NC
No internal connection
VDD1
VDD2
6
NC
No internal connection
GND1
GND2
7
NC
No internal connection
8
NC
No internal connection
9
IsoRxD
Isolated RxD output.
No connection should be made to this pin.
10
CANL
Low level CANbus line
11
VDD2
12
CANH
TxD
IsoTxD
RxD
S
NC
CANH
VDD2 power supply input
NC
VDD2
High level CANbus line
NC
CANL
Mode select input. Leave open or set low for
normal operation; set high for silent mode.
NC
IsoRxD
13
S
14
IsoTxD
Isolated TxD output.
No connection should be made to this pin.
15
GND2
VDD2 power supply ground return
16
VDD2
VDD2 power supply input
IL41050 Pin Connections (0.3" SOIC Package)
1
VDD1
VDD1 power supply input
2
GND1
VDD1 power supply ground return
(pin 2 is internally connected to pin 8)
3
TxD
Transmit Data input
4
NC
No internal connection
5
RxD
Receive Data output
6
NC
No internal connection
7
NC
No internal connection
8
GND1
VDD1 power supply ground return
(pin 8 is internally connected to pin 2)
9
GND2
VDD2 power supply ground return
(pin 9 is internally connected to pin 15)
10
VREF
Reference voltage output
11
VDD2
VDD2 power supply input
12
CANL
Low level CANbus line
13
CANH
High level CANbus line
14
S
15
GND2
VDD2 power supply ground return
(pin 15 is internally connected to pin 9)
16
VDD2
VDD2 power supply input
VDD1
VDD2
GND1
GND2
S
TxD
NC
CANH
RxD
CANL
NC
VDD2
NC
VREF
GND1
GND2
Mode select input. Leave open or set low for
normal operation; set high for silent mode.
3
NVE Corporation
11409 Valley View Road, Eden Prairie, MN 55344-3617
Phone: (952) 829-9217
Fax: (952) 829-9189
www.IsoLoop.com
©NVE Corporation
IL41050
Specifications
Electrical Specifications are Tmin to Tmax and VDD1, VDD2= 4.75 V to 5.25 V unless otherwise stated.
Parameters
Symbol
Min.
Typ.
Max.
Power Supply Current
1
1.75
3.0
Quiescent supply current (recessive)
IQVDD1
0.7
1.4
2.0
Dynamic supply current (dominant)
Units
mA
Test Conditions
dr = 0 bps; VDD1 = 5 V
dr = 0 bps; VDD1 = 3.3 V
dr = 1 Mbps, RL= 60Ω;
VDD1 = 5 V
dr = 1 Mbps, RL= 60Ω;
VDD1 = 3.3 V
0 bps
1 Mbps, RL = 60Ω
1.2
2.0
3.2
0.9
1.6
2.2
IQVDD2
IVDD2
3.5
26
6.75
52
13
78
mA
VIH
VIH
VIL
tr
IIH
IIL
2.4
2.0
−0.3
−10
10
5.25
3.6
0.8
1
10
10
V
V
V
μs
μA
μA
VDD1 = 5 V; recessive
VDD1 = 3.3 V; recessive
Output dominant
10% to 90%
tr
VTxD = VDD1
VTxD = 0 V
VIH
VIL
IIH
IIL
2.0
−0.3
20
15
VDD2 + 0.3
0.8
45
10
V
V
μA
μA
Silent mode
High-speed mode
VS = 2 V
VS = 0 V
IOH
IOL
VDD2
−2
2
3.6
−8.5
8.5
−20
20
3.9
mA
mA
V
VRxD = 0.8 VDD1
VRxD = 0.45 V
IVDD1
mA
Quiescent supply current (recessive)
Dynamic supply current (dominant)
Transmitter Data input (TxD)(1)
High level input voltage ↑
High level input voltage ↑
Low level input voltage ↓
TxD input rise and fall time(2)
High level input current
Low level input current
Mode select input (S)
High level input voltage
Low level input voltage
High level input current
Low level input current
Receiver Data output (RxD)
High level output current
Low level output current
Failsafe supply voltage(4)
Reference Voltage output (VREF)
Reference Voltage output
Bus lines (CANH and CANL)
Recessive voltage at CANH pin
Recessive voltage at CANL pin
VREF
0.45 VDD2
0.5 VDD2
0.55 VDD2
V
−50 μA<IVREF< +50 μA
VO(reces) CANH
VO(reces) CANL
2.0
2.0
2.5
2.5
3.0
3.0
V
V
Recessive current at CANH pin
IO(reces) CANH
−2.0
+2.5
mA
Recessive current at CANL pin
IO(reces) CANL
−2.0
+2.5
mA
Dominant voltage at CANH pin
Dominant voltage at CANL pin
VO(dom) CANH
VO(dom) CANL
3.0
0.5
3.6
1.4
4.25
1.75
V
V
Differential bus input voltage
(VCANH − VCANL)
1.5
2.25
3.0
V
Vi(dif)(bus)
−50
0
+50
mV
VTxD = VDD1, no load
VTxD = VDD1, no load
−27 V < VCANH< +32V;
0V < VDD2<5.25V
−27 V < VCANL < +32V;
0 V <VDD2 < 5.25 V
VTxD = 0 V
VTxD = 0 V
VTxD = 0 V; dominant
42.5 Ω < RL < 60 Ω
VTxD = VDD1;
recessive; no load
VCANH = 0 V, VTxD = 0
VCANL = 36 V, VTxD = 0
−12 V <VCANL< +12V;
−12 V <VCANH< +12 V
−12 V <VCANL< +12 V;
−12 V <VCANH< +12 V
30
30
Short-circuit output current at CANH
Short-circuit output current at CANL
IO(sc) CANH
IO(sc) CANL
−45
45
−70
70
−95
100
mA
mA
Differential receiver threshold voltage
Vi(dif)(th)
0.5
0.7
0.9
V
Vi(dif)(hys)
50
70
100
mV
Ri(CM)(CANH)
15
25
35
kΩ
Ri(CM)(CANL)
15
25
35
kΩ
Ri(CM)(m)
−3
0
+3
%
VCANL = VCANH
Ri(diff)
Ci(CANH)
Ci(CANL)
25
50
7.5
7.5
75
20
20
kΩ
pF
pF
VTxD = VDD1
VTxD = VDD1
Differential receiver input voltage
hysteresis
Common Mode input resistance at
CANH
Common Mode input resistance at
CANL
Matching between Common Mode
input resistance at CANH, CANL
Differential input resistance
Input capacitance, CANH
Input capacitance, CANL
4
NVE Corporation
11409 Valley View Road, Eden Prairie, MN 55344-3617
Phone: (952) 829-9217
Fax: (952) 829-9189
www.IsoLoop.com
©NVE Corporation
IL41050
Specifications (...cont.)
Electrical Specifications are Tmin to Tmax and VDD1, VDD2= 4.5 V to 5.5 V unless otherwise stated.
Differential input capacitance
Ci(dif)
3.75
10
Input leakage current at CANH
ILI(CANH)
100
170
250
Input leakage current at CANL
ILI(CANL)
100
170
250
Thermal Shutdown
Shutdown junction temperature
Tj(SD)
155
165
180
Timing Characteristics
29
63
125
TxD to bus active delay
td(TxD-BUSon)
32
66
128
29
68
110
TxD to bus inactive delay
td(TxD-BUSoff)
32
71
113
24
58
125
Bus active to RxD delay
td(BUSon-RxD)
27
61
128
49
103
170
Bus inactive to RxD delay
td(BUSoff-RxD)
52
106
173
TxD dominant time for timeout
Tdom(TxD)
250
457
765
pF
μA
μA
VTxD = VDD1
VCANH= 5 V, VDD2= 0 V
VCANL= 5 V, VDD2= 0 V
°C
ns
ns
ns
ns
μs
VS= 0 V; VDD1 = 5 V
VS = 0 V; VDD1 = 3.3 V
VS = 0 V; VDD1 = 5 V
VS = 0 V; VDD1 = 3.3 V
VS = 0 V; VDD1 = 5 V
VS = 0 V; VDD1 = 3.3 V
VS = 0 V; VDD1 = 5 V
VS = 0 V; VDD1 = 3.3 V
VTxD = 0 V
3.0 V > VDD1 < 5.5 V
Magnetic Field Immunity(3)
Power frequency magnetic immunity
Pulse magnetic field immunity
Cross-axis immunity multiplier
HPF
HPM
KX
Power frequency magnetic immunity
Pulse magnetic field immunity
Cross-axis immunity multiplier
HPF
HPM
KX
VDD1 = 5 V, VDD2 = 5 V
2,500
3,000
3,000
3,500
1.8
VDD1 = 3.3 V, VDD2 = 5 V
1,000
1,500
1,800
2,000
1.5
A/m
A/m
50 Hz/60 Hz
tp = 8 µs
Figure 1
A/m
A/m
50 Hz/60 Hz
tp = 8 µs
Figure 1
Notes:
1. The TxD input is edge sensitive. Voltage magnitude of the input signal is specified, but edge rate specifications must also be met.
2. The maximum time allowed for a logic transition at the TxD input is 1 μs.
3. Uniform magnetic field applied across the pins of the device. Cross-axis multiplier effective when field is applied perpendicular to the pins.
4. If VDD2 falls below the specified failsafe supply voltage, RxD will go High.
Electrostatic Discharge Sensitivity
This product has been tested for electrostatic sensitivity to the limits stated in the specifications. However, NVE recommends that all integrated
circuits be handled with appropriate care to avoid damage. Damage caused by inappropriate handling or storage could range from performance
degradation to complete failure.
Electromagnetic Compatibility
The IL41050 is fully compliant with generic EMC standards EN50081, EN50082-1 and the umbrella line-voltage standard for Information
Technology Equipment (ITE) EN61000. The IsoLoop Isolator’s Wheatstone bridge configuration and differential magnetic field signaling ensure
excellent EMC performance against all relevant standards. NVE conducted compliance tests in the categories below:
EN50081-1
Residential, Commercial & Light Industrial
Methods EN55022, EN55014
EN50082-2: Industrial Environment
Methods EN61000-4-2 (ESD), EN61000-4-3 (Electromagnetic Field Immunity), EN61000-4-4 (Electrical Transient Immunity),
EN61000-4-6 (RFI Immunity), EN61000-4-8 (Power Frequency Magnetic Field Immunity), EN61000-4-9 (Pulsed Magnetic
Field), EN61000-4-10 (Damped Oscillatory Magnetic Field)
ENV50204
Radiated Field from Digital Telephones (Immunity Test)
Immunity to external magnetic fields is higher if the field direction is “end-to-end” (rather than to “pin-to-pin”) as shown in the
diagram at right.
Fig. 1
5
NVE Corporation
11409 Valley View Road, Eden Prairie, MN 55344-3617
Phone: (952) 829-9217
Fax: (952) 829-9189
www.IsoLoop.com
©NVE Corporation
IL41050
Application Information
Power Supply Decoupling
Both VDD1 and VDD2 must be bypassed with 100 nF ceramic capacitors. These supply the dynamic current required for the isolator switching and
should be placed as close as possible to VDD and their respective ground return pins.
Dominant Mode Time-out and Failsafe Receiver Functions
CAN bus latch up is prevented by an integrated Dominant mode timeout function. If the TxD pin is forced permanently low by hardware or
software application failure, the time-out returns the RxD output to the high state no more than 765 μs after TxD is asserted dominant. The timer
is triggered by a negative edge on TxD. If the duration of the low is longer than the internal timer value, the transmitter is disabled, driving the
bus to the recessive state. The timer is reset by a positive edge on pin TxD.
If power is lost on Vdd2, the IL41050 asserts the RxD output high when the supply voltage falls below 3.8 V. RxD will return to normal
operation as soon as Vdd2 rises above approximately 4.2 V.
The Isolation Advantage
Battery fire caused by over or under charging of individual lithium ion cells is a major concern in multi-cell high voltage electric and hybrid
vehicle batteries. To combat this, each cell is monitored for current flow, cell voltage, and in some advanced batteries, magnetic susceptibility.
The IL41050 allows seamless connection of the monitoring electronics of every cell to a common CAN bus by electrically isolating inputs from
outputs, effectively isolating each cell from all other cells. Cell status is then monitored via the CAN controller in the Battery Management
System (BMS).
Another major advantage of isolation is the tremendous increase in noise immunity it affords the CAN node, even if the power source is a
battery. Inductive drives and inverters can produce transient swings in excess of 20 kV/μs. The traditional, non-isolated CAN node provides some
protection due to differential signaling and symmetrical driver/receiver pairs, but the IL41050 typically provides more than twice the dV/dt
protection of a traditional CAN node.
ADR 0...7, CS
Tx0
TxD
CANH
XTAL1
Rx0
RxD
CANL
XTAL2
IL41050
SJA1000
Fig. 2. Isolated CAN node using the IL41050 and an SJA1000 MCU.
Programmable Power-Up
A unique non-volatile programmable power-up feature prevents unstable nodes. A state that needs to be present at node power up can be
programmed at the last power down. For example if a CAN node is required to “pulse” dominant at power up, TxD can be sent low by the
controller immediately prior to power down. When power is resumed, the node will immediately go dominant allowing self-check code in the
microcontroller to verify node operation. If desired, the node can also power up silently by presetting the TxD line high at power down. At the
next power on, the IL41050 will remain silent, awaiting a dominant state from the bus.
The microcontroller can check that the CAN node powered down correctly before applying power at the next “power on” request. If the node
powered down as intended, RxD will be set high and stored in IL41050’s non-volatile memory. The level stored in the RxD bit can be read
before isolated node power is enabled, avoiding possible CAN bus disruption due to an unstable node.
6
NVE Corporation
11409 Valley View Road
Eden Prairie, MN 55344-3617 USA
Telephone: (952) 829-9217
Fax (952) 829-9189
Internet: www.isoloop.com
IL41050
Package Drawings, Dimensions and Specifications
0.15" 16-pin SOIC Package
Dimensions in inches (mm)
0.152 (3.86)
0.157 (3.99)
0.013 (0.3)
0.020 (0.5)
NOM
0.016 (0.4)
0.050 (1.3)
0.007 (0.2)
0.013 (0.3)
0.386 (9.8)
0.394 (10.0)
Pin 1 identified
by either an
indent or a
marked dot
0.228 (5.8)
0.244 (6.2)
0.054 (1.4)
0.072 (1.8)
0.040 (1.02)
0.050 (1.27)
0.040 (1.0)
NOTE: Pin spacing is a BASIC 0.060 (1.5)
dimension; tolerances
do not accumulate
0.004 (0.1)
0.012 (0.3)
0.3" 16-pin SOIC Package
Dimensions in inches (mm)
0.287 (7.29)
0.300 (7.62)
0.013 (0.3)
0.020 (0.5)
NOM
0.007 (0.2)
0.013 (0.3)
0.397 (10.1)
0.413 (10.5)
Pin 1 identified by
either an indent
or a marked dot
0.394 (10.00)
0.419 (10.64)
0.016 (0.4)
0.050 (1.3)
0.092 (2.34)
0.105 (2.67)
0.08 (2.0)
0.10 (2.5)
0.040 (1.0)
NOTE: Pin spacing is a BASIC 0.060 (1.5)
dimension; tolerances
do not accumulate
0.004 (0.1)
0.012 (0.3)
7
NVE Corporation
11409 Valley View Road
Eden Prairie, MN 55344-3617 USA
Telephone: (952) 829-9217
Fax (952) 829-9189
Internet: www.isoloop.com
IL41050
Ordering Information and Valid Part Numbers
IL 4 1050 T -3 E TR13
Bulk Packaging
Blank = Tube (50 pcs)
TR7 = 7'' Tape and Reel
(800 pcs; 0.15'' SOIC only)
Valid Part Numbers
IL41050TE
IL41050TE TR13
IL41050T-3E
IL41050T-3E TR7
IL41050T-3E TR13
TR13 = 13'' Tape and Reel
(3,000 pcs 0.15'' SOIC or
1,500 pcs 0.3'' SOIC)
Package
E = RoHS Compliant
Package Type
Blank = 0.3'' SOIC
-3 = 0.15'' SOIC
Temperature Range
T = Extended
(-55˚C to +125˚C)
Channel Configuration
1050 = CAN Transceiver
Base Part Number
4 = Isolated Transceiver
Product Family
IL = Isolators
RoHS
COMPLIANT
8
NVE Corporation
11409 Valley View Road
Eden Prairie, MN 55344-3617 USA
Telephone: (952) 829-9217
Fax (952) 829-9189
Internet: www.isoloop.com
IL41050
Revision History
ISB-DS-001-IL41050-F
April 2010
Changes
ISB-DS-001-IL41050-E
March 2010
Changes
ISB-DS-001-IL41050-D
March 2010
Changes
ISB-DS-001-IL41050-C
February 2010
ISB-DS-001-IL41050-B
January 2010
ISB-DS-001-IL41050-A
January 2010
•
•
Added 7-inch tape-and-reel bulk packaging option (TR7) for narrow-body parts (p. 8).
Changed narrow-body pinouts for pins 9, 10, 12, 13, and 14 (p. 3).
•
Added 0.15" narrow-body SOIC package.
•
Added failsafe supply voltage specification and related Note 4.
Changes
•
Extended min. operating temperature to −55°C.
•
Misc. changes and clarifications for final release.
Change
•
Clarified TxD edge trigger mode. Added information to Applications section.
•
Tightened timing specifications based on qualification data.
Change
•
Initial release.
9
NVE Corporation
11409 Valley View Road
Eden Prairie, MN 55344-3617 USA
Telephone: (952) 829-9217
Fax (952) 829-9189
Internet: www.isoloop.com
IL41050
About NVE
An ISO 9001 Certified Company
NVE Corporation manufactures innovative products based on unique spintronic Giant Magnetoresistive (GMR) technology. Products include
Magnetic Field Sensors, Magnetic Field Gradient Sensors (Gradiometers), Digital Magnetic Field Sensors, Digital Signal Isolators, and Isolated
Bus Transceivers.
NVE pioneered spintronics and in 1994 introduced the world’s first products using GMR material, a line of ultra-precise magnetic sensors for
position, magnetic media, gear speed and current sensing.
NVE Corporation
11409 Valley View Road
Eden Prairie, MN 55344-3617 USA
Telephone: (952) 829-9217
Fax: (952) 829-9189
Internet: www.nve.com
e-mail: [email protected]
The information provided by NVE Corporation is believed to be accurate. However, no responsibility is assumed by NVE Corporation for its use,
nor for any infringement of patents, nor rights or licenses granted to third parties, which may result from its use. No license is granted by
implication, or otherwise, under any patent or patent rights of NVE Corporation. NVE Corporation does not authorize, nor warrant, any NVE
Corporation product for use in life support devices or systems or other critical applications, without the express written approval of the
President of NVE Corporation.
Specifications are subject to change without notice.
ISB-DS-001-IL41050-F
April 2010
10
NVE Corporation
11409 Valley View Road
Eden Prairie, MN 55344-3617 USA
Telephone: (952) 829-9217
Fax (952) 829-9189
Internet: www.isoloop.com