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NVE CORPORATION
IL715/6/7
Four Channel Digital Isolators
Features
ISOLOOP(R)
Functional Diagram
IL715
1IN 2IN 3IN 4IN
Galvanic Isolation
1OUT 2OUT 3OUT 4OUT
* +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 * 30 kV/s 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
IL716
1IN
Galvanic Isolation
1OUT 2OUT 3IN 4IN
2IN 3OUT 4OUT
* 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(R) 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 -40C to +100C.
IL717
1IN 2IN 3IN 4OUT
Galvanic Isolation
1OUT 2OUT 3OUT 4IN
Isoloop(R) 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
IL715/6/7
Absolute Maximum Ratings
Parameters Storage Temperature Ambient Operating Temperature(1) Supply Voltage Input Voltage Output Voltage Output Current Drive Channel Lead Solder Temperature (10s) ESD
ISOLOOP(R)
Symbol TS TA VDD1,VDD2 VI VO IO
Min. -55 -55 -0.5 -0.5 -0.5
Max. 175 125 7 VDD1+0.5 VDD2+0.5 10 260
Units o C
o
C
Volts Volts Volts mAmps
o
C
2kV Human Body Model
Insulation Specifications
Parameter Barrier Impedance Creepage Distance (External) Leakage Current Capacitance (Input-Output)(5) CI-O Symbol Min 8.077 (0.3" SOIC) 4.026 (0.15" SOIC) 0.2 4.0 Typ. Max. >1014 ||7 Units mm Amps pF 240 VRMS f= 1MHz Test Condition || pF
Recommended Operating Conditions
Parameters Ambient Operating Temperature Supply Voltage Logic High Input Voltage Logic Low Input Voltage Input Signal Rise and Fall Times Symbol TA VDD1,VDD2 VIH VIL tIR,tIF Min. -40 3.0 2.4 0 Max. 100 5.5 VDD 0.8 1 Units o C Volts Volts Volts sec
IEC61010-1
TUV Certificate Numbers: B 01 07 44230 003 Classification as Table 1. Model IL715, IL716, IL717 IL715-3, IL716-6, IL717-3 Pollution Degree II II Material Group III III Max Working Package Type Voltage 16-SOIC (0.3") 16-SOIC (0.15") 300 VRMS ' 150 VRMS '
UL 1577
Component Recognition program. File # E207481 Rated 2500Vrms for 1min.
Ordering Information
Model IL715 IL716 IL717 Package Type 16-SOIC (0.3") 16-SOIC (0.15")* (no mark) -3 (no mark) -3 (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")
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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
IL715/6/7
Electrical Specifications Electrical Specifications are Tmin to Tmax .
Parameter DC Specifications Input Quiescent Supply Current IL715 IL716 IL717 Output Quiescent Supply Current IL715 IL716 IL717 Logic Input Current Logic High Output Voltage Logic Low Output Voltage Switching Parameters Maximum Data Rate Minimum Pulse Width Propagation Delay Input to Output (High to Low) Propagation Delay Input to Output ( Low to High) Pulse Width Distortion | tPHL- tPLH |
(2)
ISOLOOP(R)
Symbol IDD1 IDD1 IDD1 IDD2 IDD2 IDD2 II VOH VOL
3.3 Volt Specifiations Min. Typ. Max. 17 2.4 1.5 4.8 2.4 2 -10 VDD-0.1 VDD 0.8*VDD VDD-0.5 0 0.5 100 110 27 3.3 1.7 7 3.3 5.3 10
5Volt Specifications Min. Typ. Max. 22 4 2.2 8 4 7 -10 VDD-0.1 VDD 0.8*VDD VDD-0.5 0 0.5 100 10 110 40 5 2.5 10 5 8 10
Units A mA mA mA mA mA A V
Test Conditions
IO =-20 A, VI =VIH I = -4 mA, V =V
O I IH
0.1 0.8
0.1 0.8
V
IO = 20 A, VI =VIL I = 4 mA, V =V
O I IL
MBd ns
CL = 15 pF 50% Points, VO CL = 15 pF CL = 15 pF CL = 15 pF CL = 15 pF CL = 15 pF CL = 15 pF Vcm =300V CL = 15 pF
PW tPHL tPLH PWD tPSK tR tF |CMH|
10 12 12 2 4 2 2 20 30 2 3 18 18 3 6 4 4
10 10 2 4 1 1 20 30 2
15 15 3 6 3 3
ns ns ns ns ns ns kV/s
Propagation Delay Skew(3) Output Rise Time (10-90%) Output Fall Time (10-90%) Common Mode Transient Immunity (Output Logic High or Logic Low)(4) Channel to Channel Skew
|CML| tCSK
3
ns
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.
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
IL715/6/7
Notes:
ISOLOOP(R)
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 VDD. 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 1-8 shorted and pins 9-16 shorted.
IR Soldering Profile
250
PRE HEATING RATE 3C + 1C /-0.5C /SEC. REFLOW HEATING RATE 2.5 C 0.5C /SEC.
PEAK TEMPERATURE 245 C PEAK TEMPERATURE 240 C PEAK TEMPERATURE 230C
200 C
200
TEMPERATURE ( C )
2.5C 0.5C / SEC
160C 150C 140C
3C+1C /-0.5C
30 SEC 30 SEC
SOLDERING TIME 200C
100
PRE HEATING TIME 150C, 90 30 SEC.
50 SEC
TIGHT
TYPICAL
ROOM TEMPERATURE
LOOSE
0
0
50
100 TIME (SECONDS)
150
200
250
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
IL715/6/7
Application Notes:
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(R) 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.
ISOLOOP(R)
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:
PWD% = Maximum Pulse Width Distortion (ns) Signal Pulse Width (ns) e.g. for the IL717 @ 12.5 Mb PWD% = 3 ns 80 ns x 100% = 3.75% x 100%
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(R) 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(R) 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.
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
IL715/6/7
0.3" SOIC-16 Package
ISOLOOP(R)
0.397(10.084) 0.413(10.490) Pin 1 Indent
8
1
Dimensions in inches (mm) 0.394 (10.007) 0.419 (10.643)
9 16
0.291(7.391) 0.299(7.595)
70 TYP
0.287(7.290) 0.297(7.544)
0.010(0.254) 0.020(0.508)
x 45 0 - 8 TYP
0 0
0.013(0.330) 0.020(0.508) 0.009(0.229) 0.012(0.305) 7 TYP
0
0.016(0.41) 0.050(1.27)
0.092(2.337) 0.104(2.642)
0.080(2.032) 0.100(2.54) 0.040(1.016) 0.060(1.524) 0.004(0.1016) 0.011(0.279)
0.15" SOIC-16 Package
0.386 0.394
(9.802) (9.999) 0 0.010 (0.245) 8 0.020 (0.508) x45 0.152 (3.861) 0.157 (3.988) Pin 1 Indent
0.016 (0.406) 0.050 (1.270)
1 0.228 (5.791) 0.244 (6.197)
0.013 (0.330) 0.020 (0.508)
0.008 (0.191) 0.010 (0.249)
0.050 (1.270) 0.060 (1.524) 0.040 (1.016) 0.060 (1.524)
0.054 (1.372) 0.068 (1.727) 0.004 (0.102) 0.010 (0.249) Dimensions: inches (mm) min max
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
IL715/6/7
Pin Configurations IL715, IL716, IL717
VDD1 GND1 IN1 IN2 IN3 IN4 NC GND1
1 16
ISOLOOP(R)
VDD2 GND2 OUT1 OUT2 OUT3 OUT4 NC GND2
3 4 5 6 7 8
Galvanic Isolation
2
15 14 13 12 11 10 9
IL715
VDD1 GND1 IN1 IN2 OUT3 OUT4 NC GND1
1
16
VDD2 GND2 OUT1 OUT2 IN3 IN4 NC GND2
3 4 5 6 7 8
Galvanic Isolation
2
15 14 13 12 11 10 9
IL716
VDD1 GND1 IN1 IN2 IN3 OUT4 NC GND1
1
16
VDD2 GND2 OUT1 OUT2 OUT3 IN4 NC GND2
3 4 5 6 7 8
Galvanic Isolation
2
15 14 13 12 11 10 9
IL717
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

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