IL422

IL422 Isolated RS422/RS485 Interface Functional Diagram DE Features • • • • • • • ISODE Y Z D A B R • • • • • • RE IL422 IL422 Receiver RE H L L L R Z H L I 3.3 V Input Supply Compatible 25 ns Maximum Propagation Delay 25 Mbps Data Rate 1 ns Pulse Skew (typ.) ±60 mA Driver Output Capability Thermal Shutdown Protection Meets or Exceeds ANSI 422-B, EIA 485-A and ITU Recommended V11 Low EMC Footprint −40 °C to +85 °C Operating Temperature PROFIBUS Compliant 2500 Vrms Isolation IEC 60747-17 (VDE 0884-17):2021-10 certified; UL 1577 recognized 16-pin Wide-Body SOIC Package IL422 Driver V(A−B) X ≥ 200 mV ≤−200 mV Open DE L H H D X H L V(Y−Z) Z ≥ 1.5 V ≤−1.5 V H = High Level, L = Low Level I = Indeterminate, X = Irrelevant, Z = High Impedance Applications Multi-point or multi-drop transmission on long bus lines in noisy environments. Description The IL422 is a galvanically isolated, high-speed differential bus transceiver, designed for bidirectional data communication on balanced transmission lines. The devices use NVE’s patented* spintronic Giant Magnetoresistance (GMR) technology. The IL422 was the first isolated RS-422 interface in a standard 16-pin SOIC package to meet the ANSI Standards EIA/TIA-422-B and RS-485. The IL422 has current limiting and thermal shutdown features to protect against output short circuits and bus contention situations that could cause excessive power dissipation. Isoloop is a registered trademark of NVE Corporation. *U.S. Patent number 5,831,426; 6,300,617 and others. NVE Corporation 11409 Valley View Road, Eden Prairie, MN 55344-3617 REV. S Phone: (952) 829-9217 www.nve.com youtube.com/NveCorporation iso-apps@nve.com IL422 Absolute Maximum Ratings(11) Parameters Storage Temperature Junction Temperature Voltage Range at A or B Bus Pins Supply Voltage(1) Digital Input Voltage Digital Output Voltage Symbol TS TJ VDD1, VDD2 Min. −65 −65 −7 −0.5 −0.5 −0.5 Typ. Continuous Total Power Dissipation Maximum Output Current Lead Solder Temperature ESD IO Max. 150 150 12 7 5.5 VDD + 1 725 377 95 260 Units °C °C V V V V Max. 5.5 5.5 12 −7 Units VDD1 V 0.8 ±12 60 V V mA 8 mA mW mA °C kV 2 Test Conditions 25°C 85°C 10 sec. HBM Recommended Operating Conditions Parameters Input Voltage at any Bus Terminal (separately or common mode) Symbol VDD1 VDD2 VI VIC High-Level Digital Input Voltage VIH Low-Level Digital Input Voltage Differential Input Voltage(2) High-Level Output Current (Driver) High-Level Digital Output Current (Receiver) Low-Level Output Current (Driver) Low-Level Digital Output Current (Receiver) Ambient Operating Temperature Junction Temperature Transient Immunity Digital Input Signal Rise and Fall Times VIL VID IOH Supply Voltage Min. 3.0 4.5 Typ. 2.4 3.0 0 IOH V V IOL −60 mA IOL −8 mA TA TJ −40 −40 20 85 100 tIR,tIF Test Conditions VDD1 = 3.3 V VDD1 = 5.0 V °C °C kV/μs DC Stable 2 NVE Corporation 11409 Valley View Road, Eden Prairie, MN 55344-3617 Phone: (952) 829-9217 www.nve.com youtube.com/NveCorporation iso-apps@nve.com IL422 Safety and Approvals IEC 60747-17 (VDE 0884-17):2021-10 (Basic Isolation; VDE File Number 5016933-4880-0001) • Isolation voltage (VISO): 2500 VRMS • Transient overvoltage (VIOTM): 4000 VPK • Surge rating: 4000 V • Each part tested at 1590 VPK for 1 second, 5 pC partial discharge limit. • Samples tested at 4000 VPK for 60 sec.; then 1358 VPK for 10 sec. with 5 pC partial discharge limit. • Working Voltage (VIORM) 600 VRMS (848 VPK); basic insulation; pollution degree 2 Safety-Limiting Values Safety rating ambient temperature Safety rating power (180 °C) Supply current safety rating (total of supplies) Symbol TS PS IS Value 180 270 54 Units °C mW mA UL 1577 (Component Recognition Program File Number E207481) • 2500 V rating • Each part tested at 3000 VRMS (4243 VPK) for 1 second • Each lot sample tested at 2500 VRMS (3536 VPK) for 1 minute Soldering Profile Per JEDEC J-STD-020C, MSL-1 3 NVE Corporation 11409 Valley View Road, Eden Prairie, MN 55344-3617 Phone: (952) 829-9217 www.nve.com youtube.com/NveCorporation iso-apps@nve.com IL422 IL422 Pin Connections 1 VDD1 Input Power Supply 2 GND1 Input Power Supply Ground* 3 R 4 RE Read Data Enable (if RE is high, R = high impedance) 5 DE Drive Enable 6 D 7 NC 8 9 Output Data from Bus VDD1 VDD2 GND1 GND2 R A No Internal Connection RE B GND1 Input Power Supply Ground* DE Z GND2 Output Power Supply Ground* D Y 10 ISODE Isolated DE Output for use in Profibus applications where the state of the isolated drive enable node needs to be monitored 11 Y Y Bus (Drive – True) 12 Z Z Bus (Drive – Inverse) 13 B B Bus (Receive – Inverse) 14 A A Bus (Receive – True) 15 GND2 Output Power Supply Ground* 16 VDD2 Output Power Supply Data Input to Bus NC ISODE GND2 GND1 IL422 *NOTE: Pins 2 and 8 are internally connected, as are pins 9 and 15. 4 NVE Corporation 11409 Valley View Road, Eden Prairie, MN 55344-3617 Phone: (952) 829-9217 www.nve.com youtube.com/NveCorporation iso-apps@nve.com IL422 Driver Section Electrical specifications are Tmin to Tmax and VDD = 4.5 V to 5.5 V unless otherwise stated. Parameters Symbol Min. Typ.(5) Input Clamp Voltage VIK Output voltage VO 0 Differential Output Voltage(2) |VOD1| 1.5 Differential Output Voltage(2) |VOD2| 1.5 2.5 Differential Output Voltage(2)(6) VOD3 1.5 Change in Magnitude of Differential Δ|VOD| Output Voltage(7) Max. −1.5 6 6 5 5 Units V V V V V ±0.2 V RL = 54 Ω or 100 Ω VOC 3 −1 V RL = 54 Ω or 100 Ω Change in Magnitude of Common Mode Output Voltage(7) Δ|VOC| ±0.2 V RL = 54 Ω or 100 Ω Output Current(4) Output Disabled IO High Level Input Current Low Level Input Current IIH IIL Short-circuit Output Current IOS Common Mode Output Voltage Supply Current VDD1 = +5 V VDD1 = +3.3 V Parameters Maximum Data Rate Differential Output Prop Delay Pulse Skew(10) Differential Output Rise & Fall Time Output Enable Time to High Level Output Enable Time to Low Level Output Disable Time from High Level Output Disable Time from Low Level Skew Limit(3) IDD1 IDD1 Symbol tD(OD) tS(P) tT(OD) tPZH tPZL tPHZ tPLZ tSK(LIM) 4 3 Switching Specifications Min. Typ.(5) 25 16 1 8 31 22 28 16 2 1 −0.8 10 −10 250 −150 −250 6 3 Max. 25 6 10 65 35 50 32 8 mA μA μA mA mA Units Mbps ns ns ns ns ns ns ns ns Test Conditions IL = −18 mA IO = 0 IO = 0 RL = 54 Ω, VDD = 5 V RL = 54 Ω, VDD = 4.5 V VO = 12 V VO = −7 V VI = 3.5 V VI = 0.4 V VO = −6 V VO = 0 V VO = 8 V No Load (Outputs Enabled) Test Conditions RL = 54 Ω, CL = 50 pF RL = 54 Ω, CL = 50 pF RL = 54 Ω, CL = 50 pF RL = 54 Ω, CL = 50 pF RL = 54 Ω, CL = 50 pF RL = 54 Ω, CL = 50 pF RL = 54 Ω, CL = 50 pF RL = 54 Ω, CL = 50 pF RL = 54 Ω, CL = 50 pF 5 NVE Corporation 11409 Valley View Road, Eden Prairie, MN 55344-3617 Phone: (952) 829-9217 www.nve.com youtube.com/NveCorporation iso-apps@nve.com IL422 Receiver Section Electrical specifications are Tmin to Tmax and VDD = 4.5 V to 5.5 V unless otherwise stated. Parameters Symbol Min. Typ.(5) Positive-going Input VIT+ Threshold Voltage Negative-going Input VIT−0.2 Threshold Voltage Hysteresis Voltage (VIT+ − VIT-) VHYS 60 Max. Units 0.2 V V mV High Level Digital Output Voltage VOH Low Level Digital Output Voltage VOL 0.2 V High-impedance-state output current IOZ ±10 μA Line Input Current(8) II 1 −0.8 mA Input Resistance rI Supply Current IDD2 Parameters Maximum Data Rate Propagation Delay(9) Pulse Skew(10) Limit(3) Skew Output Enable Time To High Level Output Enable Time To Low Level Output Disable Time From High Level Output Disable Time From Low Level Parameters Maximum Data Rate Propagation Delay(9) Pulse Skew(10) Limit(3) Skew Output Enable Time To High Level Output Enable Time To Low Level Output Disable Time From High Level Output Disable Time From Low Level VDD − 0.2 12 Test Conditions VO = 2.7 V, IO = −0.4 mA VO = 0.5 V, IO = 8 mA V 20 VID = 200 mV IOH = −20 μA VID = −200 mV IOH = 20 μA VO = 0.4 to (VDD2−0.5) V VI = 12 V VI = −7 V Other Input(11) = 0 V kΩ 27 Switching Characteristics at 5 V Symbol Min. Typ.(5) 25 34 mA Max. Units Mbps tPD 24 32 ns tSK(P) 1 6 ns 8 24 45 45 27 ns ns ns ns ns Max. Units Mbps tSK(LIM) 2 tPZH 17 tPZL 30 tPHZ 30 tPLZ 18 Switching Characteristics at 3.3 V Symbol Min. Typ.(5) 25 tPD 27 32 ns tSK(P) 2 6 ns tSK(LIM) tPZH tPZL tPHZ tPLZ 4 20 33 33 20 8 24 45 45 27 ns ns ns ns ns No load Outputs Enabled Test Conditions RL = 54 Ω, CL = 50 pF VO = −1.5 V to 1.5 V, CL = 15 pF VO = −1.5 V to 1.5 V, CL = 15 pF RL = 54 Ω, CL = 50 pF CL = 15 pF CL = 15 pF CL = 15 pF CL = 15 pF Test Conditions RL = 54 Ω, CL = 50 pF VO = −1.5 V to 1.5 V, CL = 15 pF VO = −1.5 V to 1.5 V, CL = 15 pF RL = 54 Ω, CL = 50 pF CL = 15 pF CL = 15 pF CL = 15 pF CL = 15 pF Magnetic Field Immunity(11) Power Frequency Magnetic Immunity Pulse Magnetic Field Immunity Damped Oscillatory Magnetic Field Cross-axis Immunity Multiplier(12) HPF HPM HOSC KX Power Frequency Magnetic Immunity Pulse Magnetic Field Immunity Damped Oscillatory Magnetic Field Cross-axis Immunity Multiplier(12) HPF HPM HOSC KX Magnetic Field Immunity at 5 V 3500 4500 4500 2.5 Magnetic Field Immunity at 3.3 V 1500 2000 2000 2.5 A/m A/m A/m 50Hz/60Hz tp = 8µs 0.1Hz – 1MHz A/m A/m A/m 50Hz/60Hz tp = 8µs 0.1Hz – 1MHz 6 NVE Corporation 11409 Valley View Road, Eden Prairie, MN 55344-3617 Phone: (952) 829-9217 www.nve.com youtube.com/NveCorporation iso-apps@nve.com IL422 Insulation Specifications Parameters Creepage Distance Barrier Impedance Leakage Current Symbol Min. 8.08 Typ. Max. Units >1014||7 0.2 Test Conditions mm Ω || pF 240 VRMS, 60 Hz μA Thermal Characteristics Parameter Symbol Junction–Ambient Thermal Resistance Junction–Case (Top) Thermal Resistance Junction–Ambient Thermal Resistance Junction–Case (Top) Thermal Resistance Power Dissipation Min. Typ. θJA 67 θJC 12 θJA 46 θJC 9 Max. Units Test Conditions Double-sided PCB in free air °C/W 2s2p PCB in free air per JESD51 PD 1500 mW Notes: 1. All voltage values are with respect to network ground except differential I/O bus voltages. 2. Differential input/output voltage is measured at the noninverting terminal A with respect to the inverting terminal B. 3. Skew limit is the maximum propagation delay difference between any two devices at 25°C. 4. The power-off measurement in ANSI Standard EIA/TIA-422-B applies to disabled outputs only and is not applied to combined inputs and outputs. 5. All typical values are at VDD1= 3.3 V or 5 V and VDD2 = 5 V, and TA = 25°C. 6. The minimum VOD2 with a 100 Ω load is either ½ VOD1 or 2 V, whichever is greater. 7. Δ|VOD| and Δ|VOC| are the changes in magnitude of VOD and VOC, respectively, that occur when the input is changed form one logic state to the other. 8. This applies for both power on and power off, refer to ANSI standard RS-485 for exact condition. The EIA/TIA-422-B limit does not apply for a combined driver and receiver terminal. 9. Includes 8 ns read enable time. Maximum propagation delay is 25 ns after read assertion. 10. Pulse skew is defined as |tPLH − tPHL| of each channel. 11. The relevant test and measurement methods are given in the Electromagnetic Compatibility section. 12. External magnetic field immunity is improved by this factor if the field direction is “end-to-end” rather than to “pin-to-pin.” 7 NVE Corporation 11409 Valley View Road, Eden Prairie, MN 55344-3617 Phone: (952) 829-9217 www.nve.com youtube.com/NveCorporation iso-apps@nve.com IL422 Application Information Electrostatic Discharge Sensitivity Dynamic Power Consumption 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. IsoLoop Isolators achieve their low power consumption from the way 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 2.5 ns, the power consumption is independent of mark-to-space ratio and solely dependent on frequency. This has obvious advantages over optocouplers, which have power consumption heavily dependent on frequency and time. Electromagnetic Compatibility The IL422 is fully compliant with IEC 61000-6-1 and IEC 61000-6-2 standards for immunity, and IEC 61000-6-3, IEC 61000-6-4, CISPR, and FCC Class A standards for emissions. The approximate power supply current per channel is: Immunity to external magnetic fields is even higher if the field direction is “end-to-end” rather than to “pin-to-pin” as shown in the diagram below: IIN = 40 x f x 1 4 fMAX mA Where f = operating frequency fMAX = 50 MHz Power Supply Decoupling VDD1 and VDD2 should be bypassed with 0.1 µF typical (0.047 µF minimum) capacitors as close as possible to the VDD pins. Cross-axis Field Direction 8 NVE Corporation 11409 Valley View Road, Eden Prairie, MN 55344-3617 Phone: (952) 829-9217 www.nve.com youtube.com/NveCorporation iso-apps@nve.com IL422 0.3" 16-pin SOIC Package Dimensions in inches (mm); scale = approx. 5X 0.033 (0.85)* 0.043 (1.10) 0.260 (6.60)* 0.280 (7.11) 0.013 (0.3) 0.020 (0.5) 0.007 (0.2) 0.013 (0.3) 0.397 (10.08) 0.413 (10.49) 0.017 (0.43)* 0.022 (0.56) 0.016 (0.4) 0.050 (1.3) 0.007 (0.18)* 0.010 (0.25) 0.092 (2.34) 0.105 (2.67) Pin 1 identified by either an indent or a marked dot 0.08 (2.0) 0.10 (2.5) 0.292 (7.42)* 0.299 (7.59) 0.049 (1.24) 0.051 (1.30) 0.394 (10.00) 0.419 (10.64) NOTE: Pin spacing is a BASIC dimension; tolerances do not accumulate *Specified for True 8™ package to guarantee 8 mm creepage per IEC 60601. 0.004 (0.1) 0.012 (0.3) Ordering Information and Valid Part Numbers IL 422 E TR13 Bulk Packaging Blank = Tube TR = 13'' Tape and Reel Valid Part Numbers IL422 IL422E Package Blank = 80/20 Tin/Lead Plating E = RoHS Compliant All IL422 part types are available on tape and reel. Base Part Number 422 = RS-422 Transceiver Product Family IL = Isolators RoHS COMPLIANT 9 NVE Corporation 11409 Valley View Road, Eden Prairie, MN 55344-3617 Phone: (952) 829-9217 www.nve.com youtube.com/NveCorporation iso-apps@nve.com IL422 ISB-DS-001-IL422-S October 2022 Changes • • • • ISB-DS-001-IL422-R Change • ISB-DS-001-IL422-Q ISB-DS-001-IL422-M • Added magnetic field immunity and electromagnetic compatibility specifications. • Added note on package drawing that pin-spacing tolerances are non-accumulating. Change Updated package drawing; misc. Change • ISB-DS-001-IL422-G Updated open input state in truth table Change • ISB-DS-001-IL422-H Eliminated soldering profile chart Change • ISB-DS-001-IL422-I Reorganized supply current specifications; misc. minor changes Change • ISB-DS-001-IL422-J Changed ordering information to reflect that devices are now fully RoHS compliant with no exemptions. Change • ISB-DS-001-IL422-K Added low EMC footprint. Changes • ISB-DS-001-IL422-L Added clarification of internal ground connections. Change • ISB-DS-001-IL422-N Update terms and conditions. Change • ISB-DS-001-IL422-O Updated MSL, agency approvals, magnetic immunity, and other specifications. Change • ISB-DS-001-IL422-P Upgrade to VDE 0884-17 (p. 3). Updated EMC standards. Deleted minimum magnetic field immunity specifications (p. 6) since it is not 100% tested. Added thermal characteristics (p. 7). Updated UL and IEC approvals Changes • Revision letter added. • Ordering Information Removed. • IEC 61010-1 Classification: “Reinforced Insulation” added. • Notes added. • IR Soldering Profile added • Ordering Information added. 10 NVE Corporation 11409 Valley View Road, Eden Prairie, MN 55344-3617 Phone: (952) 829-9217 www.nve.com youtube.com/NveCorporation iso-apps@nve.com IL422 Datasheet Limitations The information and data provided in datasheets shall define the specification of the product as agreed between NVE and its customer, unless NVE and customer have explicitly agreed otherwise in writing. All specifications are based on NVE test protocols. In no event however, shall an agreement be valid in which the NVE product is deemed to offer functions and qualities beyond those described in the datasheet. Limited Warranty and Liability Information in this document is believed to be accurate and reliable. However, NVE does not give any representations or warranties, expressed or implied, as to the accuracy or completeness of such information and shall have no liability for the consequences of use of such information. In no event shall NVE be liable for any indirect, incidental, punitive, special or consequential damages (including, without limitation, lost profits, lost savings, business interruption, costs related to the removal or replacement of any products or rework charges) whether or not such damages are based on tort (including negligence), warranty, breach of contract or any other legal theory. Right to Make Changes NVE reserves the right to make changes to information published in this document including, without limitation, specifications and product descriptions at any time and without notice. This document supersedes and replaces all information supplied prior to its publication. Use in Life-Critical or Safety-Critical Applications Unless NVE and a customer explicitly agree otherwise in writing, NVE products are not designed, authorized or warranted to be suitable for use in life support, life-critical or safety-critical devices or equipment. NVE accepts no liability for inclusion or use of NVE products in such applications and such inclusion or use is at the customer’s own risk. Should the customer use NVE products for such application whether authorized by NVE or not, the customer shall indemnify and hold NVE harmless against all claims and damages. Applications Applications described in this datasheet are illustrative only. NVE makes no representation or warranty that such applications will be suitable for the specified use without further testing or modification. Customers are responsible for the design and operation of their applications and products using NVE products, and NVE accepts no liability for any assistance with applications or customer product design. It is customer’s sole responsibility to determine whether the NVE product is suitable and fit for the customer’s applications and products planned, as well as for the planned application and use of customer’s third party customers. Customers should provide appropriate design and operating safeguards to minimize the risks associated with their applications and products. NVE does not accept any liability related to any default, damage, costs or problem which is based on any weakness or default in the customer’s applications or products, or the application or use by customer’s third party customers. The customer is responsible for all necessary testing for the customer’s applications and products using NVE products in order to avoid a default of the applications and the products or of the application or use by customer’s third party customers. NVE accepts no liability in this respect. Limiting Values Stress above one or more limiting values (as defined in the Absolute Maximum Ratings System of IEC 60134) will cause permanent damage to the device. Limiting values are stress ratings only and operation of the device at these or any other conditions above those given in the recommended operating conditions of the datasheet is not warranted. Constant or repeated exposure to limiting values will permanently and irreversibly affect the quality and reliability of the device. Terms and Conditions of Sale In case an individual agreement is concluded only the terms and conditions of the respective agreement shall apply. NVE hereby expressly objects to applying the customer’s general terms and conditions with regard to the purchase of NVE products by customer. No Offer to Sell or License Nothing in this document may be interpreted or construed as an offer to sell products that is open for acceptance or the grant, conveyance or implication of any license under any copyrights, patents or other industrial or intellectual property rights. Export Control This document as well as the items described herein may be subject to export control regulations. Export might require a prior authorization from national authorities. Automotive Qualified Products Unless the datasheet expressly states that a specific NVE product is automotive qualified, the product is not suitable for automotive use. It is neither qualified nor tested in accordance with automotive testing or application requirements. NVE accepts no liability for inclusion or use of non-automotive qualified products in automotive equipment or applications. In the event that customer uses the product for design-in and use in automotive applications to automotive specifications and standards, customer (a) shall use the product without NVE’s warranty of the product for such automotive applications, use and specifications, and (b) whenever customer uses the product for automotive applications beyond NVE’s specifications such use shall be solely at customer’s own risk, and (c) customer fully indemnifies NVE for any liability, damages or failed product claims resulting from customer design and use of the product for automotive applications beyond NVE’s standard warranty and NVE’s product specifications. 11 NVE Corporation 11409 Valley View Road, Eden Prairie, MN 55344-3617 Phone: (952) 829-9217 www.nve.com youtube.com/NveCorporation iso-apps@nve.com IL422 An ISO 9001 Certified Company NVE Corporation 11409 Valley View Road Eden Prairie, MN 55344-3617 USA Telephone: (952) 829-9217 www.nve.com e-mail: iso-apps@nve.com ©NVE Corporation All rights are reserved. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. ISB-DS-001-IL422-S October 2022 12 NVE Corporation 11409 Valley View Road, Eden Prairie, MN 55344-3617 Phone: (952) 829-9217 www.nve.com youtube.com/NveCorporation iso-apps@nve.com