ETC IL710-3

IL710
NVE CORPORATION
ISOLOOP®
High Speed Digital Isolator
Features
GALVANIC ISOLATION
Functional Diagram
1 IN
· +5V and +3.3V CMOS Compatible
· 2 ns Typical Pulse Width Distortion
· 4 ns Typical Propagation Delay Skew
· 10 ns Typical Propagation Delay
· High Speed: 100 MBd
· 30 kV/µs Typical Common Mode Rejection
· Tri State Output
· 2500VRMS Isolation (1 Min.)
· UL1577 Approved (File # E207481)
· IEC 61010-1 Approved (Report # 607057)
V OE
1 OUT
Applications
Truth Table
VI
L
H
L
H
VOE
L
L
H
H
· Digital Fieldbus Isolation
· Multiplexed Data Transmission
· Computer Peripheral Interface
· Noise Reduction in High Speed Digital Systems
· Isolated Data Interfaces
· Logic Level Shifting
VO
L
H
Z
Z
Ordering Information
Description
The IL710 is a CMOS digital isolator integrated with NVE’s
patented* IsoLoop® technology, which gives the IL710 high speed
performance and excellent transient immunity specifications. The
symmetric magnetic coupling barrier gives this device a typical
propagation delay of only 10 ns and a pulse width distortion of 2 ns,
giving the IL710 the best specifications of any isolator device. The
IL710 also has a 100 Mbaud data rate, making it the world’s fastest
digital isolator. The IL710 is ideally suited for isolating such
applications as PROFIBUS, RS-485, RS422, etc. It is available in
8-pin PDIP and 8-pin SOIC packages, and is specified over the
temperature range of -40°C to +100°C.
Model
Package Type
8–PDIP 8–SOIC
IL710
-2
-3
IL710-2 an 8–PDIP package
IL710-3 an 8–SOIC package
Isoloop® is a registered trademark of NVE Corporation
* US Patent number 5,831,426; 6,300,617 and others
RHOPOINT COMPONENTS
Hurst Green, Oxted, Surrey RH8 9AX UK
Telephone: +44 (0) 870 608 1188
Fax: +44 (0) 870 241 2255
Internet: www.rhopointcomponents.com
IL710
ISOLOOP®
Absolute Maximum Ratings
Parameters
Storage Temperature
Symbol
TS
Min.
-55
Max.
175
TA
-55
125
VDD1,VDD2
-0.5
7
Volts
Input Voltage
VI
-0.5
VDD1+0.5
Volts
Input Voltage
VOE
-0.5
VDD2+0.5
Volts
Output Voltage
VO
-0.5
VDD2+0.5
Volts
Output Current Drive
IO
10
mAmps
Ambient Operating Temperature(1)
Supply Voltage
Lead Solder Temperature(10s)
ESD
Units
o
C
o
C
o
260
2kV Human Body Model
C
Recommended Operating Conditions
Parameters
Ambient Operating Temperature
Symbol
TA
Supply Voltage
Min.
-40
Max.
100
Units
o
C
VDD1,VDD2
3.0
5.5
Volts
VIH
2.4
VDD1
Volts
VIL
0
0.8
Volts
1
µsec
Logic High Input Voltage
Logic Low Input Voltage
Input Signal Rise and Fall Times
tIR,tIF
Insulation Specifications
Parameter
Barrier Impedance
Condition
Min.
Typ.
>1014 ||3
Max.
Units
Ω || pF
mm
7.036 (PDIP)
4.026 (SOIC)
Creepage Distance (External)
240 VRMS
Leakage Current
µAmps
0.2
60Hz
Package Characteristics
Parameter
Capacitance (Input-Output)(5)
Thermal Resistance
(PDIP)
(SOIC)
Package Power Dissipation
Symbol
CI-O
θJCT
Min.
Typ.
1.1
Max.
150
240
θJCT
Units
pF
o
C/W
o
C/W
PPD
150
Test Conditions
f= 1MHz
Thermocouple located at
center underside of package
mW
IEC61010-1
TUV Certificate Numbers:
B 01 07 44230 001 (PDIP)
B 01 07 44230 002 (SOIC)
Classification as Table 1.
Model
IL710-2
IL710-3
Pollution
Degree
II
II
Material
Group
III
III
Max Working
Voltage
300 VRMS
150 VRMS
8–PDIP
'
Package Type
8–SOIC
'
UL 1577
Component Recognition program. File # E207481
Rated 2500Vrms for 1min.
2
RHOPOINT COMPONENTS
Hurst Green, Oxted, Surrey RH8 9AX UK
Telephone: +44 (0) 870 608 1188
Fax: +44 (0) 870 241 2255
Internet: www.rhopointcomponents.com
IL710
ISOLOOP®
Electrical Specifications
Electrical Specifications are Tmin to Tmax unless otherwise stated.
Parameter
Symbol
3.3 Volt Specifiations
DC Specifications
Min.
Typ. Max.
Input Quiescent Supply Current
IDD1
4.5
7
Output Quiescent Supply Current
IDD2
2.2
3.3
Logic Input Current
II
Logic High Output Voltage
VOH
Logic Low Output Voltage
VOL
Switching Specifications
MaximumData Rate
-10
0
0.5
Units
4
5
mA
10
µA
-10
VDD2-0.1 VDD2
0.8*VDD2 VDD2-0.5
100
µA
VDD2-0.1 VDD2
0.8*VDD2 VDD2-0.5
0.1
0.8
0
0.5
110
100
V
IO =-20 µA, VI =VIH
I = -4 mA, V =V
V
IO = 20 µA, VI =VIL
I = 4 mA, V =V
O
0.1
0.8
O
110
MBd
10
I
I
12
18
10
15
ns
CL = 15 pF
Propagation Delay
Input to Output ( Low to High)
tPLH
12
18
10
15
ns
CL = 15 pF
Propagation Delay Enable to Output
(High to High Impedance)
tPHZ
3
5
3
5
ns
CL = 15 pF
Propagation Delay Enable to Output
(Low to High Impedance)
tPLZ
3
5
3
5
ns
CL = 15 pF
Propagation Delay Enable to Output
(High Impedance to High)
tPZH
3
5
3
5
ns
CL = 15 pF
Propagation Delay Enable to Output
(High Impedance to Low)
tPZL
3
5
3
5
ns
CL = 15 pF
tPSK
2
4
3
6
2
4
3
6
ns
CL = 15 pF
Output Rise Time (10-90%)
tR
2
4
1
3
ns
CL = 15 pF
Output Fall Time (10-90%)
tF
2
4
1
3
ns
CL = 15 pF
kV/µs
Vcm = 300V
VDD1
VI
NC
GND1
GND2
VO
VOE
VDD2
IL
ns
|CMH|
20
30
20
30
|CML|
Pin Connections
1
2
3
4
5
6
7
8
IH
CL = 15 pF
tPHL
Common Mode Transient
Immunity (Output Logic High or
Logic Low) (4)
10
Test Conditions
Pulse Width
Propagation Delay
Input to Output (High to Low)
Pulse Width Distortion(2)
Propagation Delay Skew(3)
PW
10
5Volt Specifications
Min.
Typ.
Max.
6
10
Input Power Supply
Logic Input Signal
No Internal Connection
Input Power Supply Ground
Output Power Supply Ground
Output Logic Signal
Logic Output Enable*
Output Power Supply
8 V DD2
V DD1 1
VI 2
NC
H
3
6 VO
Isolation
Barrier
GND 1 4
*Held low Internally
7 VOE
5 GND 2
3
RHOPOINT COMPONENTS
Hurst Green, Oxted, Surrey RH8 9AX UK
Telephone: +44 (0) 870 608 1188
Fax: +44 (0) 870 241 2255
Internet: www.rhopointcomponents.com
IL710
ISOLOOP®
Notes:
Application Notes:
1. Absolute Maximum ambient operating temperature means
the device will not be damaged if operated under these
conditions. It does not guarantee performance.
2. PWD is defined as | tPHL - tPLH |. %PWD is equal to the
PWD divided by the pulse width.
3. tPSK is equal to the magnitude of the worst case difference in
tPHL and/or tPLH that will be seen between units at 25OC.
4. CMH is the maximum common mode voltage slew rate that
can be sustained while maintaining VO > 0.8 VDD2. CML is
the maximum common mode input voltage that can be
sustained while maintaining VO < 0.8 V. The common mode
voltage slew rates apply to both rising and falling common
mode voltage edges.
5. Device is considered a two terminal device:
pins 1-4 shorted and pins 5-8 shorted.
Power Consumption
Isoloop devices achieve their low power consumption from
the manner by which they transmit data across the isolation
barrier. By detecting the edge transitions of the input logic
signal and converting these to narrow current pulses a
magnetic field is created around the GMR Wheatstone
bridge. Depending on the direction of the magnetic field,
the bridge causes the output comparator to switch following
the input logic signal. Since the current pulses are narrow,
about 2.5ns wide, the power consumption is independent of
mark-to-space ratio and solely dependent on frequency. This
has obvious advantages over optocouplers whose power
consumption is heavily dependent on its on-state and
frequency.
The approximate power supply current per channel for
Isoloop® is: I(input)= 40 . f . 1 mA
fmax
4
where
f= operating frequency
fmax= 50 MHz
Power Supplies
It is recommended that low ESR ceramic capacitors be
used to decouple the supplies. 10nF capacitors should
be placed as close to the device as possible between VDD1
and GND1, as well as between VDD2 and GND2.
Signal Status on Start-up and Shut Down
To minimize power dissipation, the input signal to the
IL710 is differentiated and then latched on the output side
of the isolation barrier to reconstruct the signal. This could
result in an ambiguous output state depending on power up,
shutdown and power loss sequencing. Therefore, the
designer should consider the inclusion of an initialization
signal in his start-up circuit.
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.
4
RHOPOINT COMPONENTS
Hurst Green, Oxted, Surrey RH8 9AX UK
Telephone: +44 (0) 870 608 1188
Fax: +44 (0) 870 241 2255
Internet: www.rhopointcomponents.com
IL710
ISOLOOP®
Timing Diagram
Legend
50%
VIN
t
PLH
t
PHL
t
90%
t
50%
t
VO
t
t
PZL
90%
PLZ
10%
PZH
PW
t
PHZ
10%
F
t
R
VOE
tPLH
tPHL
tPW
tPLZ
tPZH
tPHZ
tPZL
tR
tF
Propagation Delay, Low to High
Propagation Delay, High to Low
Minimum Pulse Width
Propagation Delay, Low to High Impedance
Propagation Delay, High Impedance to High
Propagation Delay, High to High Impedance
Propagation Delay, High Impedance to Low
Rise Time
Fall Time
IR Soldering Profile
250
PRE HEATING RATE 3ºC + 1ºC /-0.5ºC /SEC.
REFLOW HEATING RATE 2.5º C ± 0.5ºC /SEC.
PEAK TEMPERATURE 245º C
PEAK TEMPERATURE 240° C
PEAK TEMPERATURE 230ºC
200º C
2.5ºC ±0.5ºC / SEC
TEMPERATURE (º C )
200
160ºC
150ºC
140ºC
30 SEC
3ºC+1ºC /-0.5ºC
SOLDERING TIME
200ºC
30 SEC
50 SEC
100
PRE HEATING TIME
150ºC, 90 ±30 SEC.
TIGHT
TYPICAL
ROOM
TEMPERATURE
LOOSE
0
0
50
100
150
200
250
TIME (SECONDS)
5
RHOPOINT COMPONENTS
Hurst Green, Oxted, Surrey RH8 9AX UK
Telephone: +44 (0) 870 608 1188
Fax: +44 (0) 870 241 2255
Internet: www.rhopointcomponents.com
IL710
ISOLOOP®
IL710-2 (8-Pin PDIP Package)
0.240 (6.096)
Dimensions: inches (mm)
min
max
0.260 (6.604)
1
3
2
0.370 (9.398)
0.400 (10.160)
0.290 (7.366)
0.55 (1.397)
0.310 (7.874)
0.65 (1.651)
0.120 (3.048)
0.150 (3.810)
0.008 (0.203)
0.015 (0.381)
0.015 (0.381)
0.030 (0.762)
0.045 (1.143)
0.015 (0.380)
0.023 (0.584)
0.035 (0.889)
0.090 (2.286)
0.300 (7.620)
0.110 (2.794)
0.370 (9.398)
3°
8°
0.045 (1.143)
0.065 (1.651)
IL710-3 (Small Outline SOIC-8 package)
0.189 (4.80)
0°
0.197
8°
(5.00)
0.016 (0.40)
0.150 (3.80)
0.050 (1.27)
0.157 (4.00)
0.228 (5.80)
0.244 (6.20)
0.010 (0.25)
0.020 (0.50)
x45°
1
2
3
0.008 (0.19)
0.013 (0.33)
0.010 (0.25)
0.020 (0.51)
0.054 (1.37)
Dimensions: inches (mm)
min
max
0.069 (1.75)
0.004 (0.10)
0.040 (1.016)
0.010 (0.25)
0.060 (1.524)
6
RHOPOINT COMPONENTS
Hurst Green, Oxted, Surrey RH8 9AX UK
Telephone: +44 (0) 870 608 1188
Fax: +44 (0) 870 241 2255
Internet: www.rhopointcomponents.com
IL710
ISOLOOP®
Applications
Isolated PROFIBUS / RS-485
TXD
IL710
+VISO
RS-485 Truth Table
VCC
Galvanic Isolation
+VDD1
D
RT
Galvanic Isolation
RE
RTS
0
0
1
1
A
Z
Z
1
0
B
Z
Z
0
1
RXD
X
X
1
0
DE
IL710
RXD
TXD
1
0
1
0
A
R
B
RE
GND
RTS
Galvanic Isolation
IL710
Reference 485 Drivers (Texas Instruments)
65ALS176 (-40°C to +85°C)
75ALS176 (0°C to +70°C)
GND1
VDD1 and VDD2 should be decoupled with 10nF
capacitors at IL710 supply pins
GNDISO
Isolated DeviceNet / CAN Transceiver
VDD1
VISO
TXD CANH
0
high
1
floating
Galvanic Isolation
IL710
TXD
TXD
CANL
low
floating
RS
CANH
VREF
CANL
BUS
dominant
recessive
RXD
0
1
GND
VCC
IL710
RXD
Galvanic Isolation
RXD
GND1
PCA82C251
Reference controller Philips Electronics N.V.
GNDISO
VDD1 and VDD2 should be decoupled with 10nF
capacitors at IL710 supply pins
7
RHOPOINT COMPONENTS
Hurst Green, Oxted, Surrey RH8 9AX UK
Telephone: +44 (0) 870 608 1188
Fax: +44 (0) 870 241 2255
Internet: www.rhopointcomponents.com