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
IL715/6/7ISOLOOP®
NVE CORPORATION
Functional Diagram Features
· +5 and 3.3V CMOS Compatible
· 2500 VRMS Isolation (1 min)
· 2 ns Typical Pulse Width Distortion
· 10 ns Typical Propagation Delay
· 2 ns Channel to Channel Skew
·30kV/µs Typical Transient Immunity
· 100 MBd Data Rate
· 0.3” and 0.15” 16–Pin SOIC Packages
· UL1577 Approved (File # E207481)
· IEC 61010-1 Approved (Report # 607057)
Applications
· Isolated Data Transmission
· Isolated ADCs and DACs
· Isolated RS485 and RS422
· Parallel Bus Isolation
· Computer Peripheral Interface Isolation
· Logic Level Shifting
Description
The IL715, IL716 and IL717 series of 4–channel digital isolators
provide the designer with the most compact isolated logic
devices yet available. These isolators are packaged in three
options: IL715 with four unidirectional channels, IL716 with
two channels in one direction and two channels in the opposite
direction, and the IL717 with three channels in one direction and
one channel in the other direction. All these devices are
fabricated with patented* IsoLoop®technology giving them
excellent transient immunity specifications. The symmetric
magnetic coupling barrier gives these isolators a propagation
delay of only 10 ns and a pulse width distortion of 2 ns. Devices
are 100% high voltage tested to guarantee barrier integrity.
The IL715, IL716 and IL717 have a 100 MBaud data rate which
is independent of direction. They are available in 0.3” and 0.15”
16–pin SOIC packages and are specified over the temperature
range –40ºC to +100ºC.
Four Channel Digital Isolators
Isoloop®is a registered trademark of NVE Corporation
* US Patent number 5,831,426; 6,300,617 and others.
IL715
4
IN
3
IN
2
IN
1
IN
1
OUT
2
OUT
3
OUT
4
OUT
Galvanic Isolation
IL716
1IN
4OUT
3OUT
2IN
1OUT
2OUT
4IN
3IN
Galvanic Isolation
IL717
1IN
2IN
3IN
1OUT
4IN
2OUT
3OUT
4OUT
Galvanic Isolation
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
IL715/6/7ISOLOOP®
Recommended Operating Conditions
Parameters Symbol Min. Max. Units
Ambient Operating Temperature TA-40 100 oC
Supply Voltage VDD1,VDD23.0 5.5 Volts
Logic High Input Voltage VIH 2.4 VDD Volts
Logic Low Input Voltage VIL 0 0.8 Volts
Input Signal Rise and Fall Times tIR,tIF 1µsec
Absolute Maximum Ratings
Parameters Symbol Min. Max. Units
Storage Temperature TS-55 175 oC
Ambient Operating Temperature(1) TA-55 125 oC
Supply Voltage VDD1,VDD2-0.5 7 Volts
Input Voltage VI-0.5 VDD1+0.5 Volts
Output Voltage VO-0.5 VDD2+0.5 Volts
Output Current Drive Channel IO10 mAmps
Lead Solder Temperature (10s) 260 oC
ESD 2kV Human Body Model
Insulation Specifications
Parameter Symbol Min Typ. Max. Units Test Condition
Barrier Impedance >1014 ||7 Ω || pF
Creepage Distance (External) 8.077 (0.3” SOIC) mm
4.026 (0.15” SOIC)
Leakage Current 0.2 µAmps 240 VRMS
Capacitance (Input-Output)(5) CI-O4.0 pF f= 1MHz
Model Pollution Material Max Working Package Type
Degree Group Voltage 16–SOIC (0.3”) 16–SOIC (0.15”)
IL715, IL716, IL717 II III 300 VRMS '
IL715-3, IL716-6, IL717-3 II III 150 VRMS '
IEC61010-1
TUV Certificate Numbers: B 01 07 44230 003
Classification as Table 1.
UL 1577
Component Recognition program. File # E207481
Rated 2500Vrms for 1min.
Ordering Information
Model Package Type
16-SOIC (0.3”) 16-SOIC (0.15”)*
IL715 (no mark) -3
IL716 (no mark) -3
IL717 (no mark) -3
* UL & IEC approval is pending for the 16-SOIC (0.15”) parts.
Example: IL715 is packaged as a 16-SOIC (0.3”)
IL716-3 is packaged as a 16-SOIC (0.15”)
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
IL715/6/7ISOLOOP®
Electrical Specifications
Electrical Specifications are Tmin to Tmax .
Parameter Symbol 3.3 Volt Specifiations 5Volt Specifications Units Test Conditions
DC Specifications Min. Typ. Max. Min. Typ. Max.
Input Quiescent Supply Current
IL715 IDD117 27 22 40 µA
IL716 IDD12.4 3.3 4 5 mA
IL717 IDD11.5 1.7 2.2 2.5 mA
Output Quiescent Supply Current
IL715 IDD24.8 7 8 10 mA
IL716 IDD22.4 3.3 4 5 mA
IL717 IDD22 5.3 7 8 mA
Logic Input Current II-10 10 -10 10 µA
Logic High Output Voltage VOH VDD-0.1 VDD VDD-0.1 VDD VI
O=-20 µA, VI=VIH
0.8*VDD VDD-0.5 0.8*VDD VDD-0.5 IO=-4mA,VI=VIH
Logic Low Output Voltage VOL 0 0.1 0 0.1 V IO=20µA, VI=VIL
0.5 0.8 0.5 0.8 IO= 4 mA, VI=VIL
Switching Parameters
Maximum Data Rate 100 110 100 110 MBd CL=15pF
Minimum Pulse Width PW 10 10 ns 50% Points, VO
Propagation Delay
Input to Output (High to Low) tPHL 12 18 10 15 ns CL=15pF
Propagation Delay
Input to Output ( Low to High) tPLH 12 18 10 15 ns CL=15pF
Pulse Width Distortion(2)
| tPHL- tPLH | PWD 2 3 2 3 ns CL=15pF
Propagation Delay Skew(3) tPSK 46 4 6 ns C
L=15pF
Output Rise Time (10-90%) tR24 1 3 ns C
L=15pF
Output Fall Time (10-90%) tF24 1 3 ns C
L=15pF
Common Mode Transient |CMH|
Immunity (Output Logic High 20 30 20 30 kV/µs Vcm =300V
or Logic Low)(4) |CML|
Channel to Channel Skew tCSK 23 2 3 ns C
L=15pF
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.
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
IL715/6/7ISOLOOP®
4
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–t
PLH |. %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. CMHis the maximum common mode voltage slew rate that
can be sustained while maintaining VO> 0.8 VDD.CM
Lis
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 1–8 shorted and pins 9–16 shorted.
250
200
100
00
TEMPERATURE
(
º C )
50
ROOM
TEMPERATURE
100 150 200 250
TIME (SECONDS)
160ºC
150ºC
140ºC
PRE HEATING TIME
2.5ºC ±0.5ºC / SEC
PEAK TEMPERATURE 245º C PEAK TEMPERATURE 240° C
PEAK TEMPERATURE 230ºC
SOLDERING TIME
200ºC
PRE HEATING RATE 3ºC + 1ºC /-0.5ºC /SEC.
REFLOW HEATING RATE 2.5º C
±
0.5ºC /SEC.
TIGHT
TYPICAL
LOOSE
200º C
50 SEC
30 SEC
30 SEC
3ºC+1ºC /-0.5ºC
150ºC, 90
±
30 SEC.
IR Soldering Profile
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
IL715/6/7ISOLOOP®
Power Consumption
Isoloopdevices 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 Supply Decoupling
Both power supplies to these devices should be decoupled
with good quality 47 nF ceramic capacitors. For data rates
in excess of 10MBd, use of ground planes for both GND1
and GND2 is highly recommended. Capacitors should be
located as close as possible to
the device.
Signal Status on Start-up and Shut Down
To minimize power dissipation, the input signals to the
IL715, IL716 and IL717 are 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.
Data Transmission Rates
The reliability of a transmission system is directly related to
the accuracy and quality of the transmitted digital
information. For a digital system, those parameters which
determine the limits of the data transmission are pulse width
distortion and propagation delay skew.
Propagation delay is the time taken for the signal to travel
through the device. This is usually different when sending a
low-to-high than when sending a high-to-low signal. This
difference, or error, is called pulse width distortion (PWD)
and is usually in ns. It may also be expressed as a
percentage:
This figure is almost 3x better than for any available
optocoupler with the same temperature range, and 2x better
than any optocoupler regardless of published temperature
range. The IsoLoop®range of isolators including the IL717
surpasses the 10% maximum PWD recommended by
PROFIBUS, and will run at almost 35 Mb before reaching
the 10% limit.
Propagation delay skew is the difference in time taken for
two or more channels to propagate their signals. This
becomes significant when clocking is involved since it is
undesirable for the clock pulse to arrive before the data has
settled. A short propagation delay skew is therefore critical,
especially in high data rate parallel systems, to establish and
maintain accuracy and repeatability. The IsoLoop®range of
isolators all have a maximum propagation delay skew of 6
ns, which is 5x better than any optocoupler. The maximum
channel to channel skew in the IL717, IL716, and IL715
isolators is only 3 ns which is 10x better than any
optocoupler.
Application Notes:
PWD% = Maximum Pulse Width Distortion (ns) x 100%
Signal Pulse Width (ns)
e.g. for the IL717 @ 12.5 Mb
PWD% = 3ns x 100% = 3.75%
80 ns
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
IL715/6/7ISOLOOP®
6
0.291(7.391)
916 0.299(7.595)
0.013(0.330)
0.009(0.229)
0.012(0.305) 0.016(0.41)
0.050(1.27)
0.092(2.337)
0.104(2.642)
0.004(0.1016)
0.011(0.279)
0.040(1.016)
0.060(1.524)
Dimensions in inches (mm)
0.020(0.508)
0.010(0.254)
0.020(0.508)x45
0.394 (10.007)
0.419 (10.643)
0.080(2.032)
0.100(2.54)
00-8
0TYP
70TYP 0.287(7.290)
0.297(7.544)
70TYP
0.397(10.084)
0.413(10.490) Pin 1
Indent
1
8
0.3” SOIC-16 Package
0.15” SOIC-16 Package
0.386 (9.802)
0.394 (9.999)
0.228 (5.791)
0.244 (6.197)
0.152 (3.861)
0.157 (3.988)
0.013 (0.330)
0.020 (0.508)
0.054 (1.372)
0.050 (1.270)
0.068 (1.727)
0.060 (1.524)
0.004 (0.102)
0.010 (0.249)
0.040 (1.016)
0.060 (1.524)
Dimensions: inches (mm)
min
max
0.008 (0.191)
0.010 (0.249)
0
8
0.016 (0.406)
0.050 (1.270)
0.010 (0.245)
0.020 (0.508)
x45
1
Pin 1
Indent
VDD2
OUT1
GND2
OUT2
OUT3
OUT4
NC
GND2
VDD1
IN1
GND1
IN2
IN3
IN4
NC
GND1
IL715
1
2
3
4
5
6
7
89
10
11
12
13
14
15
16
Galvanic Isolation
1
2
3
4
5
6
7
89
10
11
12
13
14
15
16
VDD1
OUT1
GND1
OUT2
IN3
IN4
NC
GND1
VDD2
IN1
GND2
IN2
OUT3
OUT4
NC
GND2
IL716
Galvanic Isolation
VDD1
IN1
GND1
IN2
IN3
OUT4
NC
GND1
VDD2
OUT1
GND2
OUT2
OUT3
IN4
NC
GND2
IL717
Galvanic Isolation
1
2
3
4
5
6
7
89
10
11
12
13
14
15
16
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
IL715/6/7ISOLOOP®
Pin Configurations IL715, IL716, IL717
