ISOLOOP® IL715/6/7 NVE CORPORATION Four Channel Digital Isolators Features Functional Diagram IL715 1IN 3IN Galvanic Isolation 2IN 1OUT 2OUT 3OUT 4IN 4OUT Applications IL716 1IN 3OUT 1OUT Galvanic Isolation 2IN 2OUT 4IN IL717 2IN 3IN 1OUT Galvanic Isolation 1IN 2OUT 3OUT 4OUT · Isolated Data Transmission · Isolated ADCs and DACs · Isolated RS485 and RS422 · Parallel Bus Isolation · Computer Peripheral Interface Isolation · Logic Level Shifting Description 3IN 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/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) 4IN 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. 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 ISOLOOP® IL715/6/7 Absolute Maximum Ratings Parameters Storage Temperature Symbol TS Min. -55 Max. 175 TA -55 125 Ambient Operating Temperature(1) Units o C o C 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 IO 10 mAmps Supply Voltage Lead Solder Temperature (10s) ESD o 260 C 2kV Human Body Model Insulation Specifications Parameter Barrier Impedance Creepage Distance (External) Symbol Min Typ. Max. >1014 ||7 8.077 (0.3” SOIC) 4.026 (0.15” SOIC) Leakage Current Capacitance (Input-Output)(5) CI-O Units Test Condition Ω || pF mm 0.2 µAmps 240 VRMS 4.0 pF f= 1MHz Recommended Operating Conditions Parameters Ambient Operating Temperature Supply Voltage Symbol TA Min. -40 Max. 100 Units o C VDD1,VDD2 3.0 5.5 Volts VIH 2.4 VDD Volts VIL 0 0.8 Volts 1 µsec Logic High Input Voltage Logic Low Input Voltage Input Signal Rise and Fall Times tIR,tIF 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”) 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 ISOLOOP® IL715/6/7 Electrical Specifications Electrical Specifications are Tmin to Tmax . Parameter DC Specifications Input Quiescent Supply Current IL715 Symbol 3.3 Volt Specifiations Min. Typ. Max. 5Volt Specifications Min. Typ. Max. Units IDD1 17 27 22 40 µA IL716 IDD1 2.4 3.3 4 5 mA IL717 IDD1 1.5 1.7 2.2 2.5 mA Output Quiescent Supply Current IL715 IDD2 4.8 7 8 10 mA IL716 IDD2 2.4 3.3 4 5 mA IL717 IDD2 2 5.3 7 8 mA 10 µA Logic Input Current II Logic High Output Voltage VOH Logic Low Output Voltage VOL Switching Parameters Maximum Data Rate -10 VDD-0.1 VDD 0.8*VDD VDD-0.5 0 0.5 100 10 -10 VDD-0.1 VDD 0.8*VDD VDD-0.5 0.1 0.8 110 0 0.5 100 PW 10 Propagation Delay Input to Output (High to Low) tPHL 12 18 10 Propagation Delay Input to Output ( Low to High) tPLH 12 18 10 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 0.8 110 Minimum Pulse Width Test Conditions O I I MBd CL = 15 pF ns 50% Points, VO 15 ns CL = 15 pF 15 ns CL = 15 pF 10 IH IL (2) Pulse Width Distortion | tPHL- tPLH | PWD 2 3 2 3 ns CL = 15 pF Propagation Delay Skew(3) tPSK 4 6 4 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 ns CL = 15 pF Common Mode Transient Immunity (Output Logic High or Logic Low)(4) Channel to Channel Skew |CMH| 20 |CML| tCSK 30 2 20 3 30 2 3 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 ISOLOOP® IL715/6/7 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 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 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) 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 ISOLOOP® IL715/6/7 Application Notes: Data Transmission Rates 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 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) x 100% e.g. for the IL717 @ 12.5 Mb PWD% = 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. 3 ns 80 ns x 100% = 3.75% 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. 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 ISOLOOP® IL715/6/7 0.3” SOIC-16 Package 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) 0.291(7.391) 0.299(7.595) 70 TYP 16 9 0.287(7.290) 0.297(7.544) 0.010(0.254) 0.020(0.508) x 45 0 0 0 - 8 TYP 0.013(0.330) 0.020(0.508) 0.009(0.229) 0.016(0.41) 0.012(0.305) 0.050(1.27) 0 7 TYP 0.092(2.337) 0.104(2.642) 0.080(2.032) 0.100(2.54) 0.040(1.016) 0.004(0.1016) 0.060(1.524) 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 1 0.016 (0.406) 0.050 (1.270) 0.228 (5.791) 0.244 (6.197) 0.008 (0.191) 0.010 (0.249) 0.013 (0.330) 0.020 (0.508) 0.050 (1.270) 0.060 (1.524) 0.054 (1.372) 0.068 (1.727) 0.004 (0.102) 0.040 (1.016) 0.010 (0.249) 0.060 (1.524) 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 ISOLOOP® IL715/6/7 Pin Configurations IL715, IL716, IL717 1 16 VDD2 GND1 IN1 2 15 GND2 OUT1 IN2 IN3 IN4 NC GND1 Galvanic Isolation VDD1 3 4 5 6 7 8 14 13 10 OUT2 OUT3 OUT4 NC 9 GND2 12 11 IL715 1 16 VDD2 GND1 2 15 IN1 3 GND2 OUT1 IN2 OUT3 OUT4 NC GND1 Galvanic Isolation VDD1 4 5 6 7 8 14 13 12 11 10 OUT2 IN3 IN4 9 NC GND2 IL716 1 16 VDD2 GND1 IN1 2 15 GND2 OUT1 IN2 IN3 OUT4 NC GND1 3 4 5 6 7 Galvanic Isolation VDD1 14 13 12 11 10 9 8 OUT2 OUT3 IN4 NC GND2 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