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