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ISO7820FDWW

ISO7820FDWW

  • 厂商:

    BURR-BROWN(德州仪器)

  • 封装:

    SOIC16

  • 描述:

    DGTLISO5.7KVGENPURP16SOIC

  • 数据手册
  • 价格&库存
ISO7820FDWW 数据手册
Product Folder Sample & Buy Support & Community Tools & Software Technical Documents ISO7820, ISO7820F SLLSEP0A – JULY 2015 – REVISED MARCH 2016 ISO7820x High-Performance, 8000 VPK Reinforced Dual Channel Digital Isolator 1 Features 3 Description • • • • • The ISO7820 is a high-performance, dual-channel digital isolator with 8000 VPK isolation voltage. This device has reinforced isolation certifications according to VDE, CSA, CQC, and TUV. The isolator provides high electromagnetic immunity and low emissions at low power consumption, while isolating CMOS or LVCMOS digital I/O’s. Each isolation channel has a logic input and output buffer separated by silicon dioxide (SiO2) insulation barrier. ISO7820 has two forward channels and no reverse-direction channel. If the input power or signal is lost, default output is 'high' for the ISO7820 and 'low' for the ISO7820F device. Used in conjunction with isolated power supplies, this device prevents noise currents on a data bus or other circuits from entering the local ground and interfering with or damaging sensitive circuitry. Through innovative chip design and layout techniques, electromagnetic compatibility of ISO7820 has been significantly enhanced to ease system-level ESD, EFT, Surge and Emissions compliance. ISO7820 is available in 16-pin SOIC wide-body (DW) and extra-wide body (DWW) packages. The DWW package option comes with enable pins which can be used to put the respective outputs in high impedance for multi-master driving applications and to reduce power consumption. 1 • • • • • • • • Signaling Rate: Up to 100 Mbps Wide Supply Range: 2.25 V to 5.5 V 2.25 V to 5.5 V Level Translation Wide Temperature Range: –55°C to 125°C Low Power Consumption, Typical 1.7 mA per Channel at 1 Mbps Low Propagation Delay: 11 ns Typical (5 V Supplies) Industry leading CMTI(Min): ±100 kV/μs Robust Electromagnetic Compatibility (EMC) System-Level ESD, EFT, and Surge Immunity Low Emissions Isolation Barrier Life: > 25 Years SOIC-16 Wide Body (DW) and Extra-Wide Body (DWW) Package Options Safety and Regulatory Approvals: – 8000 VPK Reinforced Isolation per DIN V VDE V 0884-10 (VDE V 0884-10):2006-12 – 5.7 kVRMS Isolation for 1 minute per UL 1577 – CSA Component Acceptance Notice 5A, IEC 60950-1 and IEC 60601-1 End Equipment Standards – CQC Certification per GB4943.1-2011 – TUV Certification per EN 61010-1 and EN 60950-1 – All DW Package Certifications Complete; DWW Package Certifications Complete per UL, TUV and Planned for VDE, CSA, and CQC Device Information(1) PART NUMBER ISO7820, ISO7820F Industrial Automation Motor Control Power Supplies Solar Inverters Medical Equipment Hybrid Electric Vehicles BODY SIZE (NOM) 10.30 mm x 7.50 mm Extra wide SOIC, 10.30 mm × 14.0 mm DWW (16) (1) For all available packages, see the orderable addendum at the end of the datasheet. spacer 2 Applications • • • • • • PACKAGE SOIC, DW (16) Simplified Schematic VCCI Isolation Capacitor VCCO INx OUTx ENx (DWW package only) GNDI GNDO (1) VCCI and GNDI are supply and ground connections respectively for the input channels. (2) VCCO and GNDO are supply and ground connections respectively for the output channels. 1 An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. ISO7820, ISO7820F SLLSEP0A – JULY 2015 – REVISED MARCH 2016 www.ti.com Table of Contents 1 2 3 4 5 6 Features .................................................................. Applications ........................................................... Description ............................................................. Revision History..................................................... Pin Configuration and Functions ......................... Specifications......................................................... 6.1 6.2 6.3 6.4 6.5 6.6 6.7 6.8 6.9 6.10 6.11 6.12 7 8 1 1 1 2 4 5 Absolute Maximum Ratings ..................................... 5 ESD Ratings.............................................................. 5 Recommended Operating Conditions....................... 5 Thermal Information .................................................. 6 Power Dissipation Characteristics ............................ 6 Electrical Characteristics, 5 V ................................... 7 Electrical Characteristics, 3.3 V ................................ 7 Electrical Characteristics, 2.5 V ................................ 8 Switching Characteristics, 5 V .................................. 9 Switching Characteristics, 3.3 V ............................. 9 Switching Characteristics, 2.5 V ........................... 10 Typical Characteristics .......................................... 11 Parameter Measurement Information ................ 12 Detailed Description ............................................ 14 8.1 8.2 8.3 8.4 9 Overview ................................................................. Functional Block Diagram ....................................... Feature Description................................................. Device Functional Modes........................................ 14 14 15 19 Applications and Implementation ...................... 21 9.1 Application Information............................................ 21 9.2 Typical Application .................................................. 21 10 Power Supply Recommendations ..................... 23 11 Layout................................................................... 24 11.1 PCB Material ......................................................... 24 11.2 Layout Guidelines ................................................. 24 11.3 Layout Example .................................................... 24 12 Device and Documentation Support ................. 25 12.1 12.2 12.3 12.4 12.5 12.6 Documentation Support ........................................ Related Links ........................................................ Community Resources.......................................... Trademarks ........................................................... Electrostatic Discharge Caution ............................ Glossary ................................................................ 25 25 25 25 25 25 13 Mechanical, Packaging, and Orderable Information ........................................................... 25 4 Revision History NOTE: Page numbers for previous revisions may differ from page numbers in the current version. Changes from Original (July 2015) to Revision A Page • Changed the Safety and Regulatory Approvals list of Features ........................................................................................... 1 • Changed Features From: 8000 VPK VIOTM and 2121 VPK VIORM Reinforced..To: 8000 VPK Reinforced.................................. 1 • Added Features "TUV Certification per EN 61010-1 and EN 60950-1" ................................................................................ 1 • Added package: Extra wide SOIC, DWW (16) to the Device Information table .................................................................... 1 • Changed text in the first paragraph of the Description From: "certifications according to VDE, CSA, and CQC". To: "certifications according to VDE, CSA, CQC, and TUV." ...................................................................................................... 1 • Changed the Simplified Schematic ........................................................................................................................................ 1 • Added the DWW pinout image .............................................................................................................................................. 4 • Added the DWW package to the Thermal Information .......................................................................................................... 6 • Changed the Supply Current section of the Electrical Characteristics, 5 V to include the DWW package information ........ 7 • Deleted Note 1 From the Electrical Characteristics, 5 V ....................................................................................................... 7 • Changed the Supply Current section of the Electrical Characteristics, 3.3 V to include the DWW package information ............................................................................................................................................................................. 7 • Deleted Note 1 From the Electrical Characteristics, 3.3 V .................................................................................................... 8 • Changed the Supply Current section of the Electrical Characteristics, 2.5 V to include the DWW package information ............................................................................................................................................................................. 8 • Deleted Note 1 From the Electrical Characteristics, 2.5 V .................................................................................................... 9 • Added "Channel-to-channel output skew time" to Switching Characteristics, 5 V ................................................................. 9 • Added "Channel-to-channel output skew time" to Switching Characteristics, 3.3 V .............................................................. 9 • Added "Channel-to-channel output skew time" to Switching Characteristics, 2.5 V ............................................................ 10 • Added Note: "This coupler..." to the High Voltage Feature Description section ................................................................. 15 • Changed the Table 1, added DWW package information .................................................................................................... 15 • Added Note 1 to Table 2 ..................................................................................................................................................... 16 2 Submit Documentation Feedback Copyright © 2015–2016, Texas Instruments Incorporated Product Folder Links: ISO7820 ISO7820F ISO7820, ISO7820F www.ti.com SLLSEP0A – JULY 2015 – REVISED MARCH 2016 Revision History (continued) • Added "Climatic category" to Table 2 and deleted Note 1 .................................................................................................. 16 • Changed the CSA column in Table 4 ................................................................................................................................... 17 • Added TUV to the Regulatory Information section and Table 4. Deleted Note 1 in Table 4 .............................................. 17 • Changed Table 6 ................................................................................................................................................................. 19 • Changed Figure 15 .............................................................................................................................................................. 20 • Changed the Typical Application text and Figure 16............................................................................................................ 21 Copyright © 2015–2016, Texas Instruments Incorporated Product Folder Links: ISO7820 ISO7820F Submit Documentation Feedback 3 ISO7820, ISO7820F SLLSEP0A – JULY 2015 – REVISED MARCH 2016 www.ti.com 5 Pin Configuration and Functions DW Package 16-Pin (SOIC) Top View NC 16 2 INA 15 3 ISOLATION VCC1 4 INB 5 NC 13 OUTA 10 8 9 VCC1 1 16 VCC2 GND1 2 15 GND2 NC 3 14 NC NC 4 13 EN2 INA 5 12 OUTA INB 6 11 OUTB NC 7 10 GND1 8 9 NC VCC2 11 7 GND2 14 12 6 GND1 NC 1 ISOLATION GND1 DWW Package 16-Pin (SOIC) Top View OUTB NC NC NC GND2 GND2 Pin Functions PIN NAME NO. NO. DW DWW I/O DESCRIPTION GND1 1, 7 2, 8 – Ground connection for VCC1 GND2 9, 16 9, 15 – Ground connection for VCC2 INA 4 5 I Input, channel A INB 5 6 I Input, channel B NC 2, 6, 8, 10 ,11, 15 4, 7, 10 – Not connected OUTA 13 12 O Output, channel A OUTB 12 11 O Output, channel B VCC1 3 1 – Power supply, VCC1 VCC2 14 16 – Power supply, VCC2 EN2 – 13 I Output enable 2. Output pins on side 2 are enabled when EN2 is high or open and in high-impedance state when EN2 is low. 4 Submit Documentation Feedback Copyright © 2015–2016, Texas Instruments Incorporated Product Folder Links: ISO7820 ISO7820F ISO7820, ISO7820F www.ti.com SLLSEP0A – JULY 2015 – REVISED MARCH 2016 6 Specifications 6.1 Absolute Maximum Ratings (1) MIN MAX Supply voltage (2) VCC1, VCC2 –0.5 6 Voltage INx, OUTx –0.5 VCC + 0.5 (3) Output Current IO -15 15 mA 12.8 kV 150 °C Surge Immunity Storage temperature, Tstg (1) (2) (3) –65 UNIT V V Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings only and functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating Conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. All voltage values except differential I/O bus voltages are with respect to the local ground terminal (GND1 or GND2) and are peak voltage values. Maximum voltage must not exceed 6 V. 6.2 ESD Ratings VESD (1) (2) Electrostatic discharge VALUE UNIT Human body model (HBM), per ANSI/ESDA/JEDEC JS-001, all pins (1) ±6000 V Charged device model (CDM), per JEDEC specification JESD22-C101, all pins (2) ±1500 V JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process. JEDEC document JEP157 states that 250-V CDM allows safe manufacturing with a standard ESD control process. 6.3 Recommended Operating Conditions MIN VCC1, VCC2 Supply voltage VCCO IOH IOL TYP 2.25 High-level output current Low-level output current (1) =5V -4 VCCO = 3.3 V -2 VCCO = 2.5 V -1 MAX UNIT 5.5 V mA VCCO = 5 V 4 VCCO = 3.3 V 2 VCCO = 2.5 V 1 mA VIH High-level input voltage 0.7 x VCCI (1) VCCI VIL Low-level input voltage 0 0.3 x VCCI DR Signaling rate 0 100 Mbps TJ Junction temperature (2) -55 150 °C TA Ambient temperature -55 125 °C (1) (2) 25 V V VCCI = Input-side VCC; VCCO = Output-side VCC. To maintain the recommended operating conditions for TJ, see the Thermal Information table. Copyright © 2015–2016, Texas Instruments Incorporated Product Folder Links: ISO7820 ISO7820F Submit Documentation Feedback 5 ISO7820, ISO7820F SLLSEP0A – JULY 2015 – REVISED MARCH 2016 www.ti.com 6.4 Thermal Information ISO7820 THERMAL METRIC DW (SOIC) DWW (SOIC) 16 PINS 16-PINS UNIT RθJA Junction-to-ambient thermal resistance 84.7 84.7 °C/W RθJC(top) Junction-to-case(top) thermal resistance 47.3 46.0 °C/W RθJB Junction-to-board thermal resistance 49.4 54.5 °C/W ψJT Junction-to-top characterization parameter 19.1 18.5 °C/W ψJB Junction-to-board characterization parameter 48.8 53.8 °C/W RθJC(bottom) Junction-to-case(bottom) thermal resistance n/a n/a °C/W 6.5 Power Dissipation Characteristics VALUE PD Maximum power dissipation by ISO7820x PD1 Maximum power dissipation by side-1 of ISO7820x PD2 Maximum power dissipation by side-2 of ISO7820x 6 Submit Documentation Feedback UNIT 100 VCC1 = VCC2 = 5.5 V, TJ = 150°C, CL = 15 pF, input a 50 MHz 50% duty cycle square wave 20 mW 80 Copyright © 2015–2016, Texas Instruments Incorporated Product Folder Links: ISO7820 ISO7820F ISO7820, ISO7820F www.ti.com SLLSEP0A – JULY 2015 – REVISED MARCH 2016 6.6 Electrical Characteristics, 5 V VCC1 = VCC2 = 5 V ± 10% (over recommended operating conditions unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP VCC2 – 0.4 VCC2 – 0.2 VOH High-level output voltage IOH = –4 mA; see Figure 7 VOL Low-level output voltage IOL = 4 mA; see Figure 7 VI(HYS) Input threshold voltage hysteresis IIH High-level input current VIH = VCC1 at INx IIL Low-level input current VIL = 0 V at INx -10 CMTI Common-mode transient immunity VI = VCC1 or 0 V; see Figure 10 100 Supply current, Disable (ISO7820DWW and ISO7820FDWW only) EN2 = 0V, VI = 0 V (ISO7820FDWW) , VI = VCC1 (ISO7820DWW) Supply current, Disable (ISO7820DWW and ISO7820FDWW only) EN2 = 0V, VI = VCC1 (ISO7820FDWW) , VI = 0 V (ISO7820DWW) Supply current, DC Signal VI = 0 V (ISO7820F) , VI = VCC1(ISO7820) Supply current, DC Signal VI = VCC1 (ISO7820F) , VI = 0 V (ISO7820) Supply current 1 Mbps ICC1 ICC2 ICC1 ICC2 ICC1 ICC2 ICC1 ICC2 ICC1 ICC2 ICC1 ICC2 ICC1 ICC2 0.2 MAX V 0.4 0.1 x VCC2 Supply current 10 Mbps Supply current 100 Mbps V V 10 AC Signal: All channels switching with square wave clock input; CL = 15 pF UNIT μA kV/μs 0.8 1.3 0.2 0.4 3.2 4.6 0.2 0.4 0.9 1.3 1.2 1.8 3.2 4.6 1.3 2 2.1 3 1.3 2 2.1 3 2.3 3.8 2.7 3.3 11.9 15.3 MIN TYP MAX VCC2 – 0.4 VCC2 – 0.2 mA mA mA mA mA mA mA 6.7 Electrical Characteristics, 3.3 V VCC1 = VCC2 = 3.3 V ± 10% (over recommended operating conditions unless otherwise noted) PARAMETER TEST CONDITIONS VOH High-level output voltage IOH = –2 mA; see Figure 7 VOL Low-level output voltage IOL = 2 mA; see Figure 7 VI(HYS) Input threshold voltage hysteresis IIH High-level input current VIH = VCC1 at INx IIL Low-level input current VIL = 0 V at INx -10 CMTI Common-mode transient immunity VI = VCC1 or 0 V; see Figure 10 100 Supply current, Disable (ISO7820DWW and ISO7820FDWW only) EN2 = 0V, VI = 0 V (ISO7820FDWW) , VI = VCC1(ISO7820DWW) Supply current, Disable (ISO7820DWW and ISO7820FDWW only) EN2 = 0V, VI = VCC1 (ISO7820FDWW) , VI = 0 V(ISO7820DWW) Supply current, DC Signal VI = 0 V (ISO7820F) , VI = VCC1(ISO7820) Supply current, DC Signal VI = VCC1 (ISO7820F) , VI = 0 V (ISO7820) Supply current 1 Mbps ICC1 ICC2 ICC1 ICC2 ICC1 ICC2 ICC1 ICC2 ICC1 ICC2 ICC1 ICC2 ICC1 ICC2 0.2 V 0.4 0.1 x VCC2 Supply current 10 Mbps Supply current 100 Mbps Copyright © 2015–2016, Texas Instruments Incorporated Product Folder Links: ISO7820 ISO7820F V V 10 AC Signal: All channels switching with square wave clock input; CL = 15 pF UNIT μA kV/μs 0.8 1.3 0.2 0.4 3.2 4.6 0.2 0.4 0.9 1.3 1.2 1.8 3.2 4.6 1.3 2 2.1 3 1.3 2 2.1 3 2.3 3.8 2.5 3.2 8.9 11.5 Submit Documentation Feedback mA mA mA mA mA mA mA 7 ISO7820, ISO7820F SLLSEP0A – JULY 2015 – REVISED MARCH 2016 www.ti.com 6.8 Electrical Characteristics, 2.5 V VCC1 = VCC2 = 2.5 V ± 10% (over recommended operating conditions unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP VCC2 – 0.4 VCC2 – 0.2 VOH High-level output voltage IOH = –1 mA; see Figure 7 VOL Low-level output voltage IOL = 1 mA; see Figure 7 VI(HYS) Input threshold voltage hysteresis IIH High-level input current VIH = VCC1 at INx IIL Low-level input current VIL = 0 V at INx -10 CMTI Common-mode transient immunity VI = VCC1 or 0 V; see Figure 10 100 Supply current, Disable (ISO7820DWW and ISO7820FDWW only) EN2 = 0V, VI = 0 V (ISO7820FDWW) , VI = VCC1(ISO7820DWW) Supply current, Disable (ISO7820DWW and ISO7820FDWW only) EN2 = 0V, VI = VCC1 (ISO7820FDWW) , VI = 0 V(ISO7820DWW) Supply current, DC Signal VI = 0 V (ISO7820F) , VI = VCC1(ISO7820) Supply current, DC Signal VI = VCC1 (ISO7820F) , VI = 0 V (ISO7820) Supply current 1 Mbps ICC1 ICC2 ICC1 ICC2 ICC1 ICC2 ICC1 ICC2 ICC1 ICC2 ICC1 ICC2 ICC1 ICC2 8 0.2 MAX V 0.4 0.1 x VCC2 Supply current 10 Mbps Supply current 100 Mbps Submit Documentation Feedback V V 10 AC Signal: All channels switching with square wave clock input; CL = 15 pF UNIT μA kV/μs 0.8 1.3 0.2 0.4 3.2 4.6 0.2 0.4 0.9 1.3 1.2 1.8 3.2 4.6 1.3 2 2.1 3 1.3 2 2.1 3 1.8 2.7 2.4 3.2 7 9.1 mA mA mA mA mA mA mA Copyright © 2015–2016, Texas Instruments Incorporated Product Folder Links: ISO7820 ISO7820F ISO7820, ISO7820F www.ti.com SLLSEP0A – JULY 2015 – REVISED MARCH 2016 6.9 Switching Characteristics, 5 V VCC1 = VCC2 = 5 V ± 10% (over recommended operating conditions unless otherwise noted) PARAMETER tPLH, tPHL Propagation delay time PWD (1) Pulse width distortion |tPHL – tPLH| tsk(o) (2) tsk(pp) (3) 4.6 ns ns tPLZ 2.4 3.9 2.4 3.9 Disable propagation delay, high-to-high impedance output for ISO7820DWW and ISO7820FDWW 12 20 ns Disable propagation delay, low-to-high impedance output for ISO7820DWW and ISO7820FDWW 12 20 ns 10 20 ns 2 2.5 μs Enable propagation delay, high impedance-to-low output for ISO7820DWW 2 2.5 μs Enable propagation delay, high impedance-to-low output for ISO7820FDWW 10 20 ns 0.2 9 μs See Figure 7 Enable propagation delay, high impedance-to-high output for ISO7820DWW ns See Figure 8 Enable propagation delay, high impedance-to-high output for ISO7820FDWW Measured from the time VCC goes below 1.7 V. See Figure 9 Default output delay time from input power loss tie 0.6 UNIT ns tPHZ tfs 16 4.5 Output signal fall time tPZL MAX 10.7 2.5 tf tPZH TYP 6 Part-to-part skew time Output signal rise time (3) See Figure 7 MIN Channel-to-channel output skew time tr (1) (2) TEST CONDITIONS 16 Time interval error 2 1 - 1 PRBS data at 100 Mbps ns Also known as Pulse Skew. tsk(o) is the skew between outputs of a single device with all driving inputs connected together and the outputs switching in the same direction while driving identical loads. tsk(pp) is the magnitude of the difference in propagation delay times between any terminals of different devices switching in the same direction while operating at identical supply voltages, temperature, input signals and loads. 6.10 Switching Characteristics, 3.3 V VCC1 = VCC2 = 3.3 V ± 10% (over recommended operating conditions unless otherwise noted) PARAMETER tPLH, tPHL Propagation delay time PWD (1) Pulse width distortion |tPHL – tPLH| tsk(o) (2) tsk(pp) (3) tPHZ tPLZ (1) (2) (3) 16 0.7 4.7 4.5 Output signal fall time tie MAX 10.8 2.2 Output signal rise time tfs TYP 6 Part-to-part skew time tf tPZL See Figure 7 MIN Channel-to-channel output skew time tr tPZH TEST CONDITIONS UNIT ns ns 1.3 3 1.3 3 Disable propagation delay, high-to-high impedance output for ISO7820DWW and ISO7820FDWW 17 32 ns Disable propagation delay, low-to-high impedance output for ISO7820DWW and ISO7820FDWW 17 32 ns 17 32 ns 2 2.5 μs Enable propagation delay, high impedance-to-low output for ISO7820DWW 2 2.5 μs Enable propagation delay, high impedance-to-low output for ISO7820FDWW 17 32 ns 0.2 9 μs See Figure 7 Enable propagation delay, high impedance-to-high output for ISO7820DWW Enable propagation delay, high impedance-to-high output for ISO7820FDWW Default output delay time from input power loss See Figure 8 Measured from the time VCC goes below 1.7 V. See Figure 9 16 Time interval error ns 2 - 1 PRBS data at 100 Mbps 1 ns Also known as Pulse Skew. tsk(o) is the skew between outputs of a single device with all driving inputs connected together and the outputs switching in the same direction while driving identical loads. tsk(pp) is the magnitude of the difference in propagation delay times between any terminals of different devices switching in the same direction while operating at identical supply voltages, temperature, input signals and loads. Copyright © 2015–2016, Texas Instruments Incorporated Product Folder Links: ISO7820 ISO7820F Submit Documentation Feedback 9 ISO7820, ISO7820F SLLSEP0A – JULY 2015 – REVISED MARCH 2016 www.ti.com 6.11 Switching Characteristics, 2.5 V VCC1 = VCC2 = 2.5 V ± 10% (over recommended operating conditions unless otherwise noted) PARAMETER tPLH, tPHL Propagation delay time PWD (1) Pulse width distortion |tPHL – tPLH| tsk(o) (2) tsk(pp) (3) tPHZ tPLZ (1) (2) (3) 10 17.5 0.7 4.7 4.5 Output signal fall time tie MAX 11.7 2.2 Output signal rise time tfs TYP 7.5 Part-to-part skew time tf tPZL See Figure 7 MIN Channel-to-channel output skew time tr tPZH TEST CONDITIONS UNIT ns ns 1.8 3.5 1.8 3.5 Disable propagation delay, high-to-high impedance output for ISO7820DWW and ISO7820FDWW 22 45 ns Disable propagation delay, low-to-high impedance output for ISO7820DWW and ISO7820FDWW 22 45 ns 18 45 ns 2 2.5 μs Enable propagation delay, high impedance-to-low output for ISO7820DWW 2 2.5 μs Enable propagation delay, high impedance-to-low output for ISO7820FDWW 18 45 ns 0.2 9 μs See Figure 7 Enable propagation delay, high impedance-to-high output for ISO7820DWW Enable propagation delay, high impedance-to-high output for ISO7820FDWW Default output delay time from input power loss Time interval error ns See Figure 8 Measured from the time VCC goes below 1.7 V. See Figure 9 16 2 - 1 PRBS data at 100 Mbps 1 ns Also known as Pulse Skew. tsk(o) is the skew between outputs of a single device with all driving inputs connected together and the outputs switching in the same direction while driving identical loads. tsk(pp) is the magnitude of the difference in propagation delay times between any terminals of different devices switching in the same direction while operating at identical supply voltages, temperature, input signals and loads. Submit Documentation Feedback Copyright © 2015–2016, Texas Instruments Incorporated Product Folder Links: ISO7820 ISO7820F ISO7820, ISO7820F www.ti.com SLLSEP0A – JULY 2015 – REVISED MARCH 2016 6.12 Typical Characteristics 24 10 ICC1 at 2.5 V ICC2 at 2.5 V ICC1 at 3.3 V ICC2 at 3.3 V ICC1 at 5 V ICC2 at 5 V 16 ICC1 at 2.5 V ICC2 at 2.5 V ICC1 at 3.3 V ICC2 at 3.3 V ICC1 at 5 V ICC2 at 5 V 8 Supply Current (mA) Supply Current (mA) 20 12 8 6 4 2 4 0 0 0 25 50 TA = 25°C 75 100 Data Rate (Mbps) 125 150 0 CL = 15 pF 75 100 Data Rate (Mbps) 125 150 D002 CL = No Load Figure 2. Supply Current vs Data Rate (with No Load) 6 1.0 VCC at 2.5V VCC at 3.3V VCC at 5.0V 0.9 5 Low-Level Output Voltage (V) High-Level Output Voltage (V) 50 TA = 25°C Figure 1. Supply Current vs Data Rate (with 15 pF Load) 4 3 2 VCC at 2.5V VCC at 3.3V VCC at 5.0V 1 0 -15 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0.0 -10 -5 High-Level Output Current (mA) 0 0 15 VCC1 Rising VCC1 Falling VCC2 Rising VCC2 Falling 14 Propagation Delay Time (ns) 2.10 D001 Figure 4. Low-Level Output Voltage vs Low-Level Output Current 2.25 2.15 15 TA = 25°C Figure 3. High-Level Output Voltage vs High-level Output Current 2.20 5 10 Low-Level Output Current (mA) D001 TA = 25°C Power Supply Under Voltage Threshold (V) 25 D001 2.05 2.00 1.95 1.90 1.85 1.80 13 12 11 10 9 7 1.75 6 1.70 -50 5 -60 0 50 100 Free-Air Temperature (oC ) 150 tPLH at 2.5 V tPHL at 2.5 V tPHL at 3.3 V tPLH at 3.3 V tPLH at 5 V tPHL at 5 V 8 -30 D001 Figure 5. Power Supply Undervoltage Threshold vs Free-Air Temperature 0 30 60 Free-Air Temperature (oC ) 90 120 D006 Figure 6. Propagation Delay Time vs Free-Air Temperature Copyright © 2015–2016, Texas Instruments Incorporated Product Folder Links: ISO7820 ISO7820F Submit Documentation Feedback 11 ISO7820, ISO7820F SLLSEP0A – JULY 2015 – REVISED MARCH 2016 www.ti.com 7 Parameter Measurement Information Isolation Barrier IN Input Generator (See Note A) VI VCCI 50 VI OUT 50% 50% 0V tPLH tPHL CL See Note B VO VOH 90% 50% VO 50% 10% VOL tf tr A. The input pulse is supplied by a generator having the following characteristics: PRR ≤ 50 kHz, 50% duty cycle, tr ≤ 3 ns, tf ≤ 3ns, ZO = 50 Ω. At the input, 50 Ω resistor is required to terminate Input Generator signal. It is not needed in actual application. B. CL = 15 pF and includes instrumentation and fixture capacitance within ±20%. Figure 7. Switching Characteristics Test Circuit and Voltage Waveforms VCCO VCC Isolation Barrier IN Input Generator (See Note A) VI Input Generator (See Note A) VO tPZL 0V tPLZ VOH EN 0.5 V VO 50% VOL 50 OUT VCC VO VCC / 2 VCC / 2 VI 0V tPZH EN CL See Note B VI VCC / 2 VCC / 2 VI CL See Note B IN 3V ±1% OUT Isolation Barrier 0V RL = 1 k RL = 1 k ±1% VOH 50% VO 0.5 V tPHZ 50 A. The input pulse is supplied by a generator having the following characteristics: PRR ≤ 10 kHz, 50% duty cycle, tr ≤ 3 ns, tf ≤ 3 ns, ZO = 50 Ω. B. CL = 15 pF and includes instrumentation and fixture capacitance within ±20%. 0V Figure 8. Enable/Disable Propagation Delay Time Test Circuit and Waveform 12 Submit Documentation Feedback Copyright © 2015–2016, Texas Instruments Incorporated Product Folder Links: ISO7820 ISO7820F ISO7820, ISO7820F www.ti.com SLLSEP0A – JULY 2015 – REVISED MARCH 2016 Parameter Measurement Information (continued) VI VCC VCC Isolation Barrier IN = 0 V (Devices without suffix F) IN = VCC (Devices with suffix F) IN 2.7 V VI OUT 0V t fs VO fs high VO CL 50% fs low V OL See Note A A. VOH CL = 15 pF and includes instrumentation and fixture capacitance within ±20%. Figure 9. Default Output Delay Time Test Circuit and Voltage Waveforms VCCI VCCO S1 Isolation Barrier C = 0.1 µF ±1% IN C = 0.1 µF ±1% Pass-fail criteria: The output must remain stable. OUT + EN CL See Note A GNDI A. + VCM ± VOH or VOL ± GNDO CL = 15 pF and includes instrumentation and fixture capacitance within ±20%. Figure 10. Common-Mode Transient Immunity Test Circuit Copyright © 2015–2016, Texas Instruments Incorporated Product Folder Links: ISO7820 ISO7820F Submit Documentation Feedback 13 ISO7820, ISO7820F SLLSEP0A – JULY 2015 – REVISED MARCH 2016 www.ti.com 8 Detailed Description 8.1 Overview ISO7820 employs an ON-OFF Keying (OOK) modulation scheme to transmit the digital data across a silicon dioxide based isolation barrier. The transmitter sends a high frequency carrier across the barrier to represent one digital state and sends no signal to represent the other digital state. The receiver demodulates the signal after advanced signal conditioning and produces the output through a buffer stage. These devices also incorporates advanced circuit techniques to maximize the CMTI performance and minimize the radiated emissions due the high frequency carrier and IO buffer switching. The conceptual block diagram of a digital capacitive isolator, Figure 11, shows a functional block diagram of a typical channel. 8.2 Functional Block Diagram Transmitter Receiver EN TX IN OOK Modulation TX Signal Conditioning Oscillator SiO2 based Capacitive Isolation Barrier RX Signal Conditioning Envelope Detection RX OUT Emissions Reduction Techniques Figure 11. Conceptual Block Diagram of a Digital Capacitive Isolator Also a conceptual detail of how the ON/OFF Keying scheme works is shown in Figure 12. TX IN Carrier signal through isolation barrier RX OUT Figure 12. On-Off Keying (OOK) Based Modulation Scheme 14 Submit Documentation Feedback Copyright © 2015–2016, Texas Instruments Incorporated Product Folder Links: ISO7820 ISO7820F ISO7820, ISO7820F www.ti.com SLLSEP0A – JULY 2015 – REVISED MARCH 2016 8.3 Feature Description ISO7820 is available in two channel configurations and default output state options to enable a variety of application uses. PRODUCT CHANNEL DIRECTION MAX DATA RATE DEFAULT OUTPUT ISO7820 2 Forward, 0 Reverse 5700 VRMS / 8000 VPK (1) 100 Mbps High ISO7820F 2 Forward, 0 Reverse 5700 VRMS / 8000 VPK (1) 100 Mbps Low (1) RATED ISOLATION See the Regulatory Information section for detailed isolation ratings. 8.3.1 High Voltage Feature Description NOTE This coupler is suitable for 'safe electrical insulation' only within the safety ratings. Compliance with the safety ratings shall be ensured by means of suitable protective circuits. Table 1. Package Insulation and Safety-Related Specifications (over recommended operating conditions (unless otherwise noted) PARAMETER TEST CONDITIONS MIN CLR External clearance Shortest terminal-to-terminal distance through air DW-16 CPG External creepage Shortest terminal-to-terminal distance across the package surface DW-16 CTI Comparative tracking index DIN EN 60112 (VDE 0303-11); IEC 60112; UL 746A TYP MAX 8 DWW-16 mm 14.5 8 DWW-16 UNIT mm 14.5 600 V 12 Ω VIO = 500 V, TA = 25°C 10 VIO = 500 V, 100°C ≤ TA ≤ max 1011 RIO Isolation resistance, input to output (1) CIO Barrier capacitance, input to output (1) VIO = 0.4 x sin (2πft), f = 1 MHz 1 pF CI Input capacitance (2) 2 pF (1) (2) VI = VCC/2 + 0.4 x sin (2πft), f = 1 MHz, VCC = 5 V Ω All pins on each side of the barrier tied together creating a two-terminal device. Measured from input pin to ground. NOTE Creepage and clearance requirements should be applied according to the specific equipment isolation standards of an application. Care should be taken to maintain the creepage and clearance distance of a board design to ensure that the mounting pads of the isolator on the printed-circuit board do not reduce this distance. Creepage and clearance on a printed-circuit board become equal in certain cases. Techniques such as inserting grooves and/or ribs on a printed circuit board are used to help increase these specifications. Copyright © 2015–2016, Texas Instruments Incorporated Product Folder Links: ISO7820 ISO7820F Submit Documentation Feedback 15 ISO7820, ISO7820F SLLSEP0A – JULY 2015 – REVISED MARCH 2016 www.ti.com Table 2. Insulation Characteristics PARAMETER TEST CONDITIONS SPECIFICATION DW DTI Distance through the insulation Minimum internal gap (internal clearance) VIOWM Maximum working isolation voltage Time dependent dielectric breakdown (TDDB) test UNIT DWW 21 21 μm 1500 2000 VRMS 2121 2828 VDC DIN V VDE V 0884-10 (VDE V 0884-10):2006-12 VIOTM Maximum transient isolation voltage VTEST = VIOTM t = 60 sec (qualification) t= 1 sec (100% production) 8000 8000 VPK VIOSM Maximum surge isolation voltage Test method per IEC 60065, 1.2/50 µs waveform, VTEST = 1.6 x VIOSM = 12800 VPK (1) (qualification) 8000 8000 VPK VIORM Maximum repetitive peak isolation voltage 2121 2828 VPK Method a, After Input/Output safety test subgroup 2/3, VPR = VIORM x 1.2, t = 10 s, Partial discharge < 5 pC 2545 3394 Method a, After environmental tests subgroup 1, VPR = VIORM x 1.6, t = 10 s, Partial Discharge < 5 pC 3394 4525 Method b1,After environmental tests subgroup 1, VPR = VIORM x 1.875, t = 1 s (100% Production test) Partial discharge < 5 pC 3977 5303 VIO = 500 V at TS >109 >109 Pollution degree 2 2 Climatic category 55/125/21 55/125/21 5700 5700 VPR Input-to-output test voltage RS Isolation resistance VPK Ω UL 1577 VISO (1) Withstanding isolation voltage VTEST = VISO = 5700 VRMS, t = 60 sec (qualification); VTEST = 1.2 x VISO = 6840 VRMS , t = 1 sec (100% production) VRMS Testing is carried out in air or oil to determine the intrinsic surge immunity of the isolation barrier. Table 3. IEC 60664-1 Ratings Table PARAMETER TEST CONDITIONS Material group Overvoltage category / Installation classification I DW package DWW package 16 SPECIFICATION Submit Documentation Feedback Rated mains voltage ≤ 600 VRMS I–IV Rated mains voltage ≤ 1000 VRMS I–III Rated mains voltage ≤ 1000 VRMS I–IV Copyright © 2015–2016, Texas Instruments Incorporated Product Folder Links: ISO7820 ISO7820F ISO7820, ISO7820F www.ti.com SLLSEP0A – JULY 2015 – REVISED MARCH 2016 8.3.1.1 Regulatory Information DW package certifications are complete; DWW package certifications completed for UL and TUV and planned for VDE, CSA, and CQC. Table 4. Regulatory Information VDE Certified according to DIN V VDE V 0884-10 (VDE V 0884-10):200612 and DIN EN 60950-1 (VDE 0805 Teil 1):201101 CSA UL Approved under CSA Component Acceptance Notice 5A, IEC 60950-1 and IEC 60601-1 Recognized under UL 1577 Component Recognition Program Reinforced insulation per CSA 60950-1-07+A1+A2 and IEC 60950-1 2nd Ed., Reinforced insulation 800 VRMS (DW package) Maximum transient and 1450 VRMS (DWW isolation voltage, 8000 package) max working VPK; voltage (pollution degree Maximum repetitive peak 2, material group I); isolation voltage, 2121 2 MOPP (Means of VPK (DW), 2828 VPK Patient Protection) per (DWW); Maximum surge isolation CSA 60601-1:14 and IEC 60601-1 Ed. 3.1, voltage, 8000 VPK 250 VRMS (354 VPK) max working voltage (DW package) Single protection, 5700 VRMS Certificate number: 40040142 File number: E181974 Master contract number: 220991 CQC TUV Certified according to GB 4943.1-2011 Reinforced Insulation, Altitude ≤ 5000 m, Tropical Climate, 250 VRMS maximum working voltage Certificate number: CQC15001121716 Copyright © 2015–2016, Texas Instruments Incorporated Product Folder Links: ISO7820 ISO7820F Certified according to EN 61010-1:2010 (3rd Ed) and EN 60950-1:2006/A11:2009/ A1:2010/A12:2011/A2:2013 5700 VRMS Reinforced insulation per EN 61010-1:2010 (3rd Ed) up to working voltage of 600 VRMS (DW package) and 1000 VRMS (DWW package) 5700 VRMS Reinforced insulation per EN 60950-1:2006/A11:2009/ A1:2010/A12:2011/A2:2013 up to working voltage of 800 VRMS (DW package) and 1450 VRMS (DWW package) Client ID number: 77311 Submit Documentation Feedback 17 ISO7820, ISO7820F SLLSEP0A – JULY 2015 – REVISED MARCH 2016 www.ti.com 8.3.1.2 Safety Limiting Values Safety limiting intends to prevent potential damage to the isolation barrier upon failure of input or output circuitry. A failure of the I/O can allow low resistance to ground or the supply and, without current limiting, dissipate sufficient power to overheat the die and damage the isolation barrier potentially leading to secondary system failures. Table 5. Safety Limiting PARAMETER TEST CONDITIONS Safety input, output, or supply current for DW-16 package and DWW-16 Packages IS PS Safety input, output, or total power TS Maximum safety temperature MIN TYP MAX RθJA = 84.7°C/W, VI = 5.5 V, TJ = 150°C, TA = 25°C 268 RθJA = 84.7°C/W, VI = 3.6 V, TJ = 150°C, TA = 25°C 410 RθJA = 84.7°C/W, VI = 2.75 V, TJ = 150°C, TA = 25°C 537 RθJA = 84.7°C/W, TJ = 150°C, TA = 25°C 1476 150 UNIT mA mW °C The maximum safety temperature is the maximum junction temperature specified for the device. The power dissipation and junction-to-air thermal impedance of the device installed in the application hardware determines the junction temperature. The assumed junction-to-air thermal resistance in the is that of a device installed on a High-K test board for Leaded Surface Mount Packages. The power is the recommended maximum input voltage times the current. The junction temperature is then the ambient temperature plus the power times the junction-to-air thermal resistance. 1600 Power VCC1 = VCC2 = 2.75 V VCC1 = VCC2 = 3.6 V VCC1 = VCC2 = 5.5 V 500 1400 Safety Limiting Power (mW) Safety Limiting Current (mA) 600 400 300 200 100 1000 800 600 400 200 0 0 0 50 100 150 Ambient Temperature (qC) 200 Submit Documentation Feedback 0 50 D014 Figure 13. Thermal Derating Curve for Safety Limiting Current per VDE 18 1200 100 150 Ambient Temperature (qC) 200 D015 Figure 14. Thermal Derating Curve for Safety Limiting Power per VDE Copyright © 2015–2016, Texas Instruments Incorporated Product Folder Links: ISO7820 ISO7820F ISO7820, ISO7820F www.ti.com SLLSEP0A – JULY 2015 – REVISED MARCH 2016 8.4 Device Functional Modes ISO7820 functional modes are shown in Table 6. Table 6. ISO7820 Function Table (1) VCCI PU X (1) (2) (3) VCCO INPUT (INx) (2) OUTPUT ENABLE (EN2) (DWW Package Only) OUTPUT (OUTx) H H or open H L H or open L Open H or open Default X L Z PU PU PD PU X H or open Default X PD X X Undetermined COMMENTS Normal Operation: A channel output assumes the logic state of its input. Default mode: When INx is open, the corresponding channel output goes to its default high logic state. Default= High for ISO7820 and Low for ISO7820F. A low value of Output Enable causes the outputs to be highimpedance. Default mode: When VCCI is unpowered, a channel output assumes the logic state based on the selected default option.Default= High for ISO7820 and Low for ISO7820F. When VCCI transitions from unpowered to powered-up, a channel output assumes the logic state of its input. When VCCI transitions from powered-up to unpowered, channel output assumes the selected default state. When VCCO is unpowered, a channel output is undetermined (3). When VCCO transitions from unpowered to powered-up, a channel output assumes the logic state of its input VCCI = Input-side VCC; VCCO = Output-side VCC; PU = Powered up (VCC ≥ 2.25 V); PD = Powered down (VCC ≤ 1.7 V); X = Irrelevant; H = High level; L = Low level; Z = High impedance A strongly driven input signal can weakly power the floating VCC via an internal protection diode and cause undetermined output. The outputs are in undetermined state when 1.7 V < VCCI, VCCO < 2.25 V. Copyright © 2015–2016, Texas Instruments Incorporated Product Folder Links: ISO7820 ISO7820F Submit Documentation Feedback 19 ISO7820, ISO7820F SLLSEP0A – JULY 2015 – REVISED MARCH 2016 www.ti.com 8.4.1 Device I/O Schematics Input (Device Without Suffix F) VCCI VCCI Input (Device With Suffix F) VCCI VCCI VCCI VCCI VCCI 1.5 MW 985 W 985 W INx INx 1.5 MW Output Enable VCCO VCCO VCCO VCCO VCCO 2 MW ~20 W OUTx 1970 W ENx Figure 15. Device I/O Schematics 20 Submit Documentation Feedback Copyright © 2015–2016, Texas Instruments Incorporated Product Folder Links: ISO7820 ISO7820F ISO7820, ISO7820F www.ti.com SLLSEP0A – JULY 2015 – REVISED MARCH 2016 9 Applications and Implementation NOTE Information in the following applications sections is not part of the TI component specification, and TI does not warrant its accuracy or completeness. TI’s customers are responsible for determining suitability of components for their purposes. Customers should validate and test their design implementation to confirm system functionality. 9.1 Application Information The ISO7820 is a high-performance, dual-channel digital isolator with 5.7 kVRMS isolation voltage per UL 1577. It utilizes single-ended CMOS-logic switching technology. Its supply voltage range is from 2.25 V to 5.5 V for both supplies, VCC1 and VCC2. When designing with digital isolators, it is important to keep in mind that due to the single-ended design structure, digital isolators do not conform to any specific interface standard and are only intended for isolating single-ended CMOS or TTL digital signal lines. The isolator is typically placed between the data controller (that is, μC or UART), and a data converter or a line transceiver, regardless of the interface type or standard. 9.2 Typical Application ISO7820F can be used to isolate power MOSFETs from sensitive logic circuitry in Switch Mode Power Supplies (SMPS) as shown below. MOSFET A MOSFET B PWM ISO7820F UCC27423 Figure 16. Isolated Switch Mode Power Supply 9.2.1 Design Requirements For the ISO7820, use the parameters shown in Table 7. Table 7. Design Parameters PARAMETER VALUE Supply voltage 2.25 V to 5.5 V Decoupling capacitor between VCC1 and GND1 0.1 µF Decoupling capacitor from VCC2 and GND2 0.1 µF Copyright © 2015–2016, Texas Instruments Incorporated Product Folder Links: ISO7820 ISO7820F Submit Documentation Feedback 21 ISO7820, ISO7820F SLLSEP0A – JULY 2015 – REVISED MARCH 2016 www.ti.com 9.2.2 Detailed Design Procedure Unlike optocouplers, which need external components to improve performance, provide bias, or limit current, ISO7820 only needs two external bypass capacitors to operate. ISO7820 VCC1 VCC2 GND1 GND1 0.1 P F NC NC 1 16 16 GND2 2 15 15 NC NC GND2 0.1 P F GND1 GND1 3 OUTA INA 4 INB INB 5 NC NC 6 GND1 GND1 NC NC 14 14 VCC2 VCC2 13 13 INA OUTA OUTA 12 12 OUTB OUTB OUTB 11 11 NC NC 7 10 10 NC 8 99 OISOLATION L A T I O INB VVCC1 CC1 I S INA N GND2 GND2 GND2 Figure 17. Typical ISO7820 Circuit Hook-up 9.2.2.1 Electromagnetic Compatibility (EMC) Considerations Many applications in harsh industrial environment are sensitive to disturbances such as electrostatic discharge (ESD), electrical fast transient (EFT), surge and electromagnetic emissions. These electromagnetic disturbances are regulated by international standards such as IEC 61000-4-x and CISPR 22. Although system-level performance and reliability depends, to a large extent, on the application board design and layout, the ISO7820 incorporate many chip-level design improvements for overall system robustness. Some of these improvements include: • Robust ESD protection for input and output signal pins and inter-chip bond pads. • Low-resistance connectivity of ESD cells to supply and ground pins. • Enhanced performance of high voltage isolation capacitor for better tolerance of ESD, EFT and surge events. • Bigger on-chip decoupling capacitors to bypass undesirable high energy signals through a low impedance path. • PMOS and NMOS devices isolated from each other by using guard rings to avoid triggering of parasitic SCRs. • Reduced common mode currents across the isolation barrier by ensuring purely differential internal operation. 22 Submit Documentation Feedback Copyright © 2015–2016, Texas Instruments Incorporated Product Folder Links: ISO7820 ISO7820F ISO7820, ISO7820F www.ti.com SLLSEP0A – JULY 2015 – REVISED MARCH 2016 9.2.3 Application Performance Curve Typical eye diagram of ISO7820 indicate low jitter and wide open eye at the maximum data rate of 100 Mbps. Figure 18. Eye Diagram at 100 Mbps PRBS, 5 V and 25°C 10 Power Supply Recommendations To ensure reliable operation at all data rates and supply voltages, a 0.1 µF bypass capacitor is recommended at input and output supply pins (VCC1 and VCC2). The capacitors should be placed as close to the supply pins as possible. If only a single primary-side power supply is available in an application, isolated power can be generated for the secondary-side with the help of a transformer driver such as Texas Instruments' SN6501. For such applications, detailed power supply design and transformer selection recommendations are available in SN6501 datasheet (SLLSEA0) . Copyright © 2015–2016, Texas Instruments Incorporated Product Folder Links: ISO7820 ISO7820F Submit Documentation Feedback 23 ISO7820, ISO7820F SLLSEP0A – JULY 2015 – REVISED MARCH 2016 www.ti.com 11 Layout 11.1 PCB Material For digital circuit boards operating below 150 Mbps, (or rise and fall times higher than 1 ns), and trace lengths of up to 10 inches, use standard FR-4 epoxy-glass as PCB material. FR-4 (Flame Retardant 4) meets the requirements of Underwriters Laboratories UL94-V0, and is preferred over cheaper alternatives due to its lower dielectric losses at high frequencies, less moisture absorption, greater strength and stiffness, and its selfextinguishing flammability-characteristics. 11.2 Layout Guidelines A minimum of four layers is required to accomplish a low EMI PCB design (see Figure 19). Layer stacking should be in the following order (top-to-bottom): high-speed signal layer, ground plane, power plane and low-frequency signal layer. • Routing the high-speed traces on the top layer avoids the use of vias (and the introduction of their inductances) and allows for clean interconnects between the isolator and the transmitter and receiver circuits of the data link. • Placing a solid ground plane next to the high-speed signal layer establishes controlled impedance for transmission line interconnects and provides an excellent low-inductance path for the return current flow. • Placing the power plane next to the ground plane creates additional high-frequency bypass capacitance of approximately 100 pF/in2. • Routing the slower speed control signals on the bottom layer allows for greater flexibility as these signal links usually have margin to tolerate discontinuities such as vias. If an additional supply voltage plane or signal layer is needed, add a second power / ground plane system to the stack to keep it symmetrical. This makes the stack mechanically stable and prevents it from warping. Also the power and ground plane of each power system can be placed closer together, thus increasing the high-frequency bypass capacitance significantly. For detailed layout recommendations, see Application Note SLLA284, Digital Isolator Design Guide. 11.3 Layout Example High-speed traces 10 mils Ground plane 40 mils Keep this space free from planes, traces, pads, and vias FR-4 0r ~ 4.5 Power plane 10 mils Low-speed traces Figure 19. Layout Example 24 Submit Documentation Feedback Copyright © 2015–2016, Texas Instruments Incorporated Product Folder Links: ISO7820 ISO7820F ISO7820, ISO7820F www.ti.com SLLSEP0A – JULY 2015 – REVISED MARCH 2016 12 Device and Documentation Support 12.1 Documentation Support 12.1.1 Related Documentation See the Isolation Glossary (SLLA353) 12.2 Related Links The table below lists quick access links. Categories include technical documents, support and community resources, tools and software, and quick access to sample or buy. Table 8. Related Links PARTS PRODUCT FOLDER SAMPLE & BUY TECHNICAL DOCUMENTS TOOLS & SOFTWARE SUPPORT & COMMUNITY ISO7820 Click here Click here Click here Click here Click here ISO7820F Click here Click here Click here Click here Click here 12.3 Community Resources The following links connect to TI community resources. Linked contents are provided "AS IS" by the respective contributors. They do not constitute TI specifications and do not necessarily reflect TI's views; see TI's Terms of Use. TI E2E™ Online Community TI's Engineer-to-Engineer (E2E) Community. Created to foster collaboration among engineers. At e2e.ti.com, you can ask questions, share knowledge, explore ideas and help solve problems with fellow engineers. Design Support TI's Design Support Quickly find helpful E2E forums along with design support tools and contact information for technical support. 12.4 Trademarks E2E is a trademark of Texas Instruments. 12.5 Electrostatic Discharge Caution These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates. 12.6 Glossary SLYZ022 — TI Glossary. This glossary lists and explains terms, acronyms, and definitions. 13 Mechanical, Packaging, and Orderable Information The following pages include mechanical packaging and orderable information. This information is the most current data available for the designated devices. This data is subject to change without notice and revision of this document. For browser-based versions of this data sheet, refer to the left-hand navigation. Copyright © 2015–2016, Texas Instruments Incorporated Product Folder Links: ISO7820 ISO7820F Submit Documentation Feedback 25 ISO7820, ISO7820F SLLSEP0A – JULY 2015 – REVISED MARCH 2016 www.ti.com PACKAGE OUTLINE DW0016B SOIC - 2.65 mm max height SCALE 1.500 SOIC C 10.63 TYP 9.97 SEATING PLANE PIN 1 ID AREA A 0.1 C 14X 1.27 16 1 2X 8.89 10.5 10.1 NOTE 3 8 9 0.51 0.31 0.25 C A 16X 7.6 7.4 NOTE 4 B 2.65 MAX B 0.38 TYP 0.25 SEE DETAIL A 0.25 GAGE PLANE 0.3 0.1 0 -8 1.27 0.40 DETAIL A (1.4) TYPICAL 4221009/A 08/2013 NOTES: 1. All linear dimensions are in millimeters. Dimensions in parenthesis are for reference only. Dimensioning and tolerancing per ASME Y14.5M. 2. This drawing is subject to change without notice. 3. This dimension does not include mold flash, protrusions, or gate burrs. Mold flash, protrusions, or gate burrs shall not exceed 0.15 mm, per side. 4. This dimension does not include interlead flash. Interlead flash shall not exceed 0.25 mm, per side. 5. Reference JEDEC registration MO-013, variation AA. www.ti.com 26 Submit Documentation Feedback Copyright © 2015–2016, Texas Instruments Incorporated Product Folder Links: ISO7820 ISO7820F ISO7820, ISO7820F www.ti.com SLLSEP0A – JULY 2015 – REVISED MARCH 2016 EXAMPLE BOARD LAYOUT DW0016B SOIC - 2.65 mm max height SOIC SYMM SYMM 16X (2) 16X (1.65) SEE DETAILS 1 SEE DETAILS 1 16 16 16X (0.6) 16X (0.6) SYMM SYMM 14X (1.27) 14X (1.27) 9 8 9 8 (9.75) (9.3) HV / ISOLATION OPTION 8.1 mm CLEARANCE/CREEPAGE IPC-7351 NOMINAL 7.3 mm CLEARANCE/CREEPAGE LAND PATTERN EXAMPLE SCALE:4X SOLDER MASK OPENING METAL SOLDER MASK OPENING 0.07 MAX ALL AROUND METAL 0.07 MIN ALL AROUND SOLDER MASK DEFINED NON SOLDER MASK DEFINED SOLDER MASK DETAILS 4221009/A 08/2013 NOTES: (continued) 6. Publication IPC-7351 may have alternate designs. 7. Solder mask tolerances between and around signal pads can vary based on board fabrication site. www.ti.com Copyright © 2015–2016, Texas Instruments Incorporated Product Folder Links: ISO7820 ISO7820F Submit Documentation Feedback 27 ISO7820, ISO7820F SLLSEP0A – JULY 2015 – REVISED MARCH 2016 www.ti.com EXAMPLE STENCIL DESIGN DW0016B SOIC - 2.65 mm max height SOIC SYMM SYMM 16X (1.65) 16X (2) 1 1 16 16 16X (0.6) 16X (0.6) SYMM SYMM 14X (1.27) 14X (1.27) 9 8 9 8 (9.3) (9.75) IPC-7351 NOMINAL 7.3 mm CLEARANCE/CREEPAGE HV / ISOLATION OPTION 8.1 mm CLEARANCE/CREEPAGE SOLDER PASTE EXAMPLE BASED ON 0.125 mm THICK STENCIL SCALE:4X 4221009/A 08/2013 NOTES: (continued) 8. Laser cutting apertures with trapezoidal walls and rounded corners may offer better paste release. IPC-7525 may have alternate design recommendations. 9. Board assembly site may have different recommendations for stencil design. www.ti.com 28 Submit Documentation Feedback Copyright © 2015–2016, Texas Instruments Incorporated Product Folder Links: ISO7820 ISO7820F ISO7820, ISO7820F www.ti.com SLLSEP0A – JULY 2015 – REVISED MARCH 2016 PACKAGE OUTLINE DWW0016A SOIC - 2.65 mm max height SCALE 1.000 PLASTIC SMALL OUTLINE C 17.4 17.1 A SEATING PLANE 0.1 C PIN 1 ID AREA 14X 1.27 16 1 10.4 10.2 NOTE 3 2X 8.89 8 9 16X B 14.1 13.9 NOTE 4 0.25 0.51 0.31 A B (2.286) C 2.65 MAX 0.28 TYP 0.22 SEE DETAIL A (1.625) 0.25 GAGE PLANE 0 -8 0.3 0.1 1.1 0.6 DETAIL A TYPICAL 4221501/A 11/2014 NOTES: 1. All linear dimensions are in millimeters. Any dimensions in parenthesis are for reference only. Dimensioning and tolerancing per ASME Y14.5M. 2. This drawing is subject to change without notice. 3. This dimension does not include mold flash, protrusions, or gate burrs. Mold flash, protrusions, or gate burrs shall not exceed 0,15 mm per side. 4. This dimension does not include interlead flash. www.ti.com Copyright © 2015–2016, Texas Instruments Incorporated Product Folder Links: ISO7820 ISO7820F Submit Documentation Feedback 29 ISO7820, ISO7820F SLLSEP0A – JULY 2015 – REVISED MARCH 2016 www.ti.com EXAMPLE BOARD LAYOUT DWW0016A SOIC - 2.65 mm max height PLASTIC SMALL OUTLINE 16X (2) 16X (1.875) (14.25) (14.5) 16X (0.6) 16X (0.6) 1 1 16 16 SYMM SYMM 14X (1.27) 9 8 SYMM 14X (1.27) 9 8 SYMM (16.375) (16.25) LAND PATTERN EXAMPLE LAND PATTERN EXAMPLE STANDARD SCALE:3X PCB CLEARANCE & CREEPAGE OPTIMIZED SCALE:3X 0.07 MAX ALL AROUND SOLDER MASK OPENING 0.07 MIN ALL AROUND METAL SOLDER MASK OPENING METAL UNDER SOLDER MASK NON SOLDER MASK DEFINED (PREFERRED) SOLDER MASK DEFINED SOLDER MASK DETAILS 4221501/A 11/2014 NOTES: (continued) 5. Publication IPC-7351 may have alternate designs. 6. Solder mask tolerances between and around signal pads can vary based on board fabrication site. www.ti.com 30 Submit Documentation Feedback Copyright © 2015–2016, Texas Instruments Incorporated Product Folder Links: ISO7820 ISO7820F ISO7820, ISO7820F www.ti.com SLLSEP0A – JULY 2015 – REVISED MARCH 2016 EXAMPLE STENCIL DESIGN DWW0016A SOIC - 2.65 mm max height PLASTIC SMALL OUTLINE 16X (2) SYMM 1 16 16X (0.6) SYMM 14X (1.27) 9 8 (16.25) SOLDER PASTE EXAMPLE STANDARD BASED ON 0.125 mm THICK STENCIL SCALE:4X 16X (1.875) SYMM 1 16 16X (0.6) SYMM 14X (1.27) 9 8 (16.375) SOLDER PASTE EXAMPLE PCB CLEARANCE & CREEPAGE OPTIMIZED BASED ON 0.125 mm THICK STENCIL SCALE:4X 4221501/A 11/2014 NOTES: (continued) 7. Laser cutting apertures with trapezoidal walls and rounded corners may offer better paste release. IPC-7525 may have alternate design recommendations. 8. Board assembly site may have different recommendations for stencil design. www.ti.com Copyright © 2015–2016, Texas Instruments Incorporated Product Folder Links: ISO7820 ISO7820F Submit Documentation Feedback 31 PACKAGE OPTION ADDENDUM www.ti.com 10-Dec-2020 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Pins Package Drawing Qty Eco Plan (2) Lead finish/ Ball material MSL Peak Temp Op Temp (°C) Device Marking (3) (4/5) (6) ISO7820DW ACTIVE SOIC DW 16 40 RoHS & Green NIPDAU Level-2-260C-1 YEAR -55 to 125 ISO7820 ISO7820DWR ACTIVE SOIC DW 16 2000 RoHS & Green NIPDAU Level-2-260C-1 YEAR -55 to 125 ISO7820 ISO7820DWW ACTIVE SOIC DWW 16 45 RoHS & Green NIPDAU Level-3-260C-168 HR -55 to 125 ISO7820 ISO7820DWWR ACTIVE SOIC DWW 16 1000 RoHS & Green NIPDAU Level-3-260C-168 HR -55 to 125 ISO7820 ISO7820FDW ACTIVE SOIC DW 16 40 RoHS & Green NIPDAU Level-2-260C-1 YEAR -55 to 125 ISO7820F ISO7820FDWR ACTIVE SOIC DW 16 2000 RoHS & Green NIPDAU Level-2-260C-1 YEAR -55 to 125 ISO7820F ISO7820FDWW ACTIVE SOIC DWW 16 45 RoHS & Green NIPDAU Level-3-260C-168 HR -55 to 125 ISO7820F ISO7820FDWWR ACTIVE SOIC DWW 16 1000 RoHS & Green NIPDAU Level-3-260C-168 HR -55 to 125 ISO7820F (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. (2) RoHS: TI defines "RoHS" to mean semiconductor products that are compliant with the current EU RoHS requirements for all 10 RoHS substances, including the requirement that RoHS substance do not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, "RoHS" products are suitable for use in specified lead-free processes. TI may reference these types of products as "Pb-Free". RoHS Exempt: TI defines "RoHS Exempt" to mean products that contain lead but are compliant with EU RoHS pursuant to a specific EU RoHS exemption. Green: TI defines "Green" to mean the content of Chlorine (Cl) and Bromine (Br) based flame retardants meet JS709B low halogen requirements of
ISO7820FDWW 价格&库存

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