Product Folder Order Now Support & Community Tools & Software Technical Documents ISO7720-Q1, ISO7721-Q1 SLLSEU1 – MARCH 2017 ISO772x-Q1 High-Speed, Robust EMC Reinforced Dual-Channel Digital Isolators 1 Features 3 Description • • The ISO772x-Q1 devices are high-performance, dualchannel digital isolators with 5000 VRMS (DW package) and 3000 VRMS (D package) isolation ratings per UL 1577. These devices are also certified by VDE, TUV, CSA, and CQC. 1 • • • • • • • • • • • Qualified for Automotive Applications AEC-Q100 Qualified With the Following Results: – Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature Range – Device HBM ESD Classification Level 3A – Device CDM ESD Classification Level C6 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 Default Output High and Low Options Low Power Consumption, Typical 1.7 mA per Channel at 1 Mbps Low Propagation Delay: 11 ns Typical (5-V Supplies) High CMTI: ±100 kV/μs Typical Robust Electromagnetic Compatibility (EMC) – System-Level ESD, EFT, and Surge Immunity – Low Emissions Isolation Barrier Life: >40 Years Wide-SOIC (DW-16) and Narrow-SOIC (D-8) Package Options Safety-Related Certifications: – VDE Reinforced Insulation according to DIN V VDE V 0884-10 (VDE V 0884-10):2006-12 – 5000 VRMS (DW) and 3000 VRMS (D) Isolation Rating 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 according to EN 60950-1 and EN 61010-1 – VDE, UL, CSA, and TUV Certifications for DW Package Complete; All Other Certifications Planned 2 Applications • • • • Hybrid Electric Vehicles Motor Control Power Supplies Solar Inverters The ISO772x-Q1 devices provide high electromagnetic immunity and low emissions at low power consumption, while isolating CMOS or LVCMOS digital I/Os. Each isolation channel has a logic input and output buffer separated by a silicon dioxide (SiO2) insulation barrier. The ISO7720-Q1 device has both channels in the same direction while the -Q1 device has both channels in the opposite direction. In the event of input power or signal loss, the default output is high for devices without suffix F and low for devices with suffix F. See the Device Functional Modes section for further details. Used in conjunction with isolated power supplies, these devices help prevent 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, the electromagnetic compatibility of the ISO772x-Q1 devices has been significantly enhanced to ease system-level ESD, EFT, surge, and emissions compliance. The ISO772x-Q1 family of devices is available in 16-pin SOIC wide-body (DW) and 8-pin SOIC narrow-body (D) packages. Device Information(1) PART NUMBER ISO7720-Q1 ISO7721-Q1 PACKAGE BODY SIZE (NOM) SOIC (D) 4.90 mm × 3.91 mm SOIC (DW) 10.30 mm × 7.50 mm (1) For all available packages, see the orderable addendum at the end of the datasheet. Simplified Schematic VCCI Isolation Capacitor VCCO INx OUTx GNDI GNDO Copyright © 2016, Texas Instruments Incorporated VCCI and GNDI are supply and ground connections respectively for the input channels. 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. ISO7720-Q1, ISO7721-Q1 SLLSEU1 – MARCH 2017 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 6.13 6.14 6.15 6.16 6.17 6.18 6.19 Typical Characteristics .......................................... 13 1 1 1 2 3 4 7 8 Parameter Measurement Information ................ 15 Detailed Description ............................................ 16 8.1 8.2 8.3 8.4 Absolute Maximum Ratings ..................................... 4 ESD Ratings ............................................................ 4 Recommended Operating Conditions....................... 4 Thermal Information .................................................. 5 Power Ratings........................................................... 5 Insulation Specifications............................................ 6 Safety-Related Certifications..................................... 7 Safety Limiting Values .............................................. 7 Electrical Characteristics—5-V Supply ..................... 8 Supply Current Characteristics—5-V Supply .......... 8 Electrical Characteristics—3.3-V Supply ................ 9 Supply Current Characteristics—3.3-V Supply ....... 9 Electrical Characteristics—2.5-V Supply .............. 10 Supply Current Characteristics—2.5-V Supply ..... 10 Switching Characteristics—5-V Supply................. 11 Switching Characteristics—3.3-V Supply.............. 11 Switching Characteristics—2.5-V Supply.............. 11 Insulation Characteristics Curves ......................... 12 9 Overview ................................................................. Functional Block Diagram ....................................... Feature Description................................................. Device Functional Modes........................................ 16 16 17 18 Applications and Implementation ...................... 19 9.1 Application Information............................................ 19 9.2 Typical Application .................................................. 19 10 Power Supply Recommendations ..................... 21 11 Layout................................................................... 21 11.1 Layout Guidelines ................................................. 21 11.2 Layout Example .................................................... 21 12 Device and Documentation Support ................. 22 12.1 12.2 12.3 12.4 12.5 12.6 12.7 Documentation Support ........................................ Related Links ........................................................ Receiving Notification of Documentation Updates Community Resources.......................................... Trademarks ........................................................... Electrostatic Discharge Caution ............................ Glossary ................................................................ 22 22 22 22 22 22 22 13 Mechanical, Packaging, and Orderable Information ........................................................... 23 4 Revision History NOTE: Page numbers for previous revisions may differ from page numbers in the current version. 2 DATE REVISION NOTES March 2017 * Initial release. Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated Product Folder Links: ISO7720-Q1 ISO7721-Q1 ISO7720-Q1, ISO7721-Q1 www.ti.com SLLSEU1 – MARCH 2017 5 Pin Configuration and Functions ISO7720-Q1 DW Package 16-Pin SOIC Top View 16 GND2 2 15 VCC1 3 INA 4 INB 5 NC ISOLATION NC GND1 1 NC 16 GND2 NC 2 15 14 VCC2 VCC1 3 14 VCC2 13 OUTA OUTA 4 ISOLATION GND1 1 ISO7721-Q1 DW Package 16-Pin SOIC Top View 13 NC INA 12 OUTB INB 5 6 11 NC NC 6 11 NC GND1 7 10 NC GND1 7 10 NC 8 9 GND2 NC 8 9 GND2 ISO7720-Q1 D Package 8-Pin SOIC Top View 1 INA 2 INB 3 ISOLATION VCC1 ISO7721-Q1 D Package 8-Pin SOIC Top View 8 VCC2 VCC1 7 OUTA OUTA 2 6 OUTB GND1 4 INB 5 GND2 1 3 8 VCC2 ISOLATION NC 12 OUTB GND1 4 7 INA 6 OUTB 5 GND2 Pin Functions PIN NAME DW PACKAGE D PACKAGE I/O DESCRIPTION ISO7720-Q1 ISO7721-Q1 ISO7720-Q1 ISO7721-Q1 1, 7 1, 7 4 4 — Ground connection for VCC1 9 9 16 16 5 5 — Ground connection for VCC2 INA 4 13 2 7 I Input, channel A INB 5 5 3 3 I Input, channel B NC 2, 6, 8, 10, 11, 15 2, 6, 8, 10, 11, 15 — — — Not connected GND1 GND2 OUTA 13 4 7 2 O Output, channel A OUTB 12 12 6 6 O Output, channel B VCC1 3 3 1 1 — Power supply, VCC1 VCC2 14 14 8 8 — Power supply, VCC2 Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated Product Folder Links: ISO7720-Q1 ISO7721-Q1 3 ISO7720-Q1, ISO7721-Q1 SLLSEU1 – MARCH 2017 www.ti.com 6 Specifications 6.1 Absolute Maximum Ratings See (1) . Supply voltage (2) VCC1, VCC2 MIN MAX –0.5 6 V Voltage at INx, OUTx –0.5 IO Output current –15 TJ Junction temperature Tstg Storage temperature (1) (2) (3) VCC + 0.5 –65 UNIT V (3) V 15 mA 150 °C 150 °C 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 VALUE Electrostatic discharge V(ESD) (1) Human-body model (HBM), per AEC Q100-002 (1) ±6000 Charged-device model (CDM), per AEC Q100-011 ±1500 UNIT V AEC Q100-002 indicates that HBM stressing shall be in accordance with the ANSI/ESDA/JEDEC JS-001 specification. 6.3 Recommended Operating Conditions MIN NOM UNIT Supply voltage VCC(UVLO+) UVLO threshold when supply voltage is rising VCC(UVLO-) UVLO threshold when supply voltage is falling 1.7 1.8 V VHYS(UVLO) Supply voltage UVLO hysteresis 100 200 mV IOH IOL High-level output current Low-level output current 2.25 MAX VCC1, VCC2 2 VCCO (1) = 5 V –4 VCCO = 3.3 V –2 VCCO = 2.5 V –1 5.5 V 2.25 V mA VCCO = 5 V 4 VCCO = 3.3 V 2 VCCO = 2.5 V 1 mA VIH High-level input voltage 0.7 × VCCI (1) VCCI V VIL Low-level input voltage 0 0.3 × VCCI V DR Signaling rate TA Ambient temperature (1) 4 0 –40 25 100 Mbps 125 °C VCCI = Input-side VCC; VCCO = Output-side VCC. Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated Product Folder Links: ISO7720-Q1 ISO7721-Q1 ISO7720-Q1, ISO7721-Q1 www.ti.com SLLSEU1 – MARCH 2017 6.4 Thermal Information ISO772x-Q1 THERMAL METRIC (1) DW (SOIC) D (SOIC) 16 PINS 8 PINS UNIT RθJA Junction-to-ambient thermal resistance 86.5 137.7 °C/W RθJC(top) Junction-to-case(top) thermal resistance 49.6 54.9 °C/W RθJB Junction-to-board thermal resistance 49.7 71.7 °C/W ψJT Junction-to-top characterization parameter 32.3 7.1 °C/W ψJB Junction-to-board characterization parameter 49.2 70.7 °C/W RθJC(bottom) Junction-to-case(bottom) thermal resistance n/a n/a °C/W (1) For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application report. 6.5 Power Ratings PARAMETER TEST CONDITIONS MIN TYP MAX UNIT ISO7720-Q1 PD Maximum power dissipation VCC1 = VCC2 = 5.5 V, TJ = 150°C, CL = 15 pF, input a 50 MHz 50% duty cycle square wave 100 mW PD1 Maximum power dissipation by side-1 VCC1 = VCC2 = 5.5 V, TJ = 150°C, CL = 15 pF, input a 50 MHz 50% duty cycle square wave 20 mW PD2 Maximum power dissipation by side-2 VCC1 = VCC2 = 5.5 V, TJ = 150°C, CL = 15 pF, input a 50 MHz 50% duty cycle square wave 80 mW ISO7721-Q1 PD Maximum power dissipation VCC1 = VCC2 = 5.5 V, TJ = 150°C, CL = 15 pF, input a 50 MHz 50% duty cycle square wave 100 mW PD1 Maximum power dissipation by side-1 VCC1 = VCC2 = 5.5 V, TJ = 150°C, CL = 15 pF, input a 50 MHz 50% duty cycle square wave 50 mW PD2 Maximum power dissipation by side-2 VCC1 = VCC2 = 5.5 V, TJ = 150°C, CL = 15 pF, input a 50 MHz 50% duty cycle square wave 50 mW Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated Product Folder Links: ISO7720-Q1 ISO7721-Q1 5 ISO7720-Q1, ISO7721-Q1 SLLSEU1 – MARCH 2017 www.ti.com 6.6 Insulation Specifications PARAMETER CLR External clearance VALUE TEST CONDITIONS DW-16 D-8 UNIT (1) Shortest terminal-to-terminal distance through air 8 4 mm (1) Shortest terminal-to-terminal distance across the package surface 8 4 mm 21 21 μm >600 >600 V CPG External creepage DTI Distance through the insulation Minimum internal gap (internal clearance) CTI Comparative tracking index DIN EN 60112 (VDE 0303-11); IEC 60112; UL 746A Material group According to IEC 60664-1 Overvoltage category per IEC 60664-1 I I Rated mains voltage ≤ 150 VRMS I–IV I–IV Rated mains voltage ≤ 300 VRMS I–IV I–III Rated mains voltage ≤ 600 VRMS I–IV n/a Rated mains voltage ≤ 1000 VRMS I–III n/a AC voltage (bipolar) 1414 637 VPK AC voltage; Time dependent dielectric breakdown (TDDB) test 1000 450 VRMS DC voltage 1414 637 VDC 8000 4242 VPK 8000 5000 VPK Method a, After Input/Output safety test subgroup 2/3, Vini = VIOTM, tini = 60 s; Vpd(m) = 1.2 × VIORM, tm = 10 s ≤5 ≤5 Method a, After environmental tests subgroup 1, Vini = VIOTM, tini = 60 s; Vpd(m) = 1.6 × VIORM, tm = 10 s ≤5 ≤5 Method b1; At routine test (100% production) and preconditioning (type test), Vini = VIOTM, tini = 1 s; Vpd(m) = 1.875 × VIORM, tm = 1 s ≤5 ≤5 DIN V VDE V 0884-10 (VDE V 0884-10):2006-12 (2) VIORM Maximum repetitive peak isolation voltage VIOWM Maximum working isolation voltage VIOTM Maximum transient isolation voltage VTEST = VIOTM, t = 60 s (qualification); t = 1 s (100% production) VIOSM Maximum surge isolation voltage (3) Test method per IEC 60065, 1.2/50 µs waveform, VTEST = 1.6 × VIOSM (qualification) Apparent charge (4) qpd Barrier capacitance, input to output (5) CIO Isolation resistance (5) RIO pC VIO = 0.4 × sin (2πft), f = 1 MHz ~0.5 ~0.5 VIO = 500 V, TA = 25°C >1012 >1012 VIO = 500 V, 100°C ≤ TA ≤ 125°C >1011 >1011 9 9 VIO = 500 V at TS = 150°C >10 pF Ω >10 Pollution degree 2 2 Climatic category 55/125/21 5/125/21 5000 3000 UL 1577 VISO (1) (2) (3) (4) (5) 6 Withstanding isolation voltage VTEST = VISO, t = 60 s(qualification); VTEST = 1.2 × VISO, t = 1 s (100% production) VRMS 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. 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. Testing is carried out in air or oil to determine the intrinsic surge immunity of the isolation barrier. Apparent charge is electrical discharge caused by a partial discharge (pd). All pins on each side of the barrier tied together creating a two-terminal device. Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated Product Folder Links: ISO7720-Q1 ISO7721-Q1 ISO7720-Q1, ISO7721-Q1 www.ti.com SLLSEU1 – MARCH 2017 6.7 Safety-Related Certifications DW package devices certified according to VDE, CSA, UL, and TUV; All other certifications are planned. VDE Certified according to DIN V VDE V 0884-10 (VDE V 0884-10):200612 CSA UL Certified under CSA Component Acceptance Notice 5A, IEC 60950-1, and IEC 60601-1 Reinforced insulation per CSA 60950-1-07+A1+A2 and IEC 60950-1 2nd Ed., Maximum transient 800 VRMS (DW-16) and 400 isolation voltage, 8000 VPK (DW-16, Reinforced) VRMS (D-8) max working voltage (pollution degree 2, and 4242 VPK (D-8); Maximum repetitive peak material group I); isolation voltage, 1414 VPK (DW-16, Reinforced) and 637 VPK (D-8); 2 MOPP (Means of Patient Maximum surge isolation Protection) per CSA 60601voltage, 8000 VPK (DW- 1:14 and IEC 60601-1 Ed. 16, Reinforced) and 3.1, 250 VRMS (DW-16) max 5000 VPK (D-8) working voltage Certificate number: 40040142 Master contract number: 220991 Certified according to UL 1577 Component Recognition Program CQC TUV Certified according to EN 61010-1:2010 (3rd Ed) Plan to certify according to and EN 60950GB4943.1-2011 1:2006/A11:2009/A1:2010/ A12:2011/A2:2013 DW-16: Single protection, 5000 VRMS; D-8: Single protection, 3000 VRMS DW-16: Reinforced Insulation, Altitude ≤ 5000 m, Tropical Climate, 400 VRMS maximum working voltage; D-8: Basic Insulation, Altitude ≤ 5000 m, Tropical Climate, 250 VRMS maximum working voltage File number: E181974 Certification planned 5000 VRMS (DW-16) and 3000 VRMS (D-8) Reinforced insulation per EN 61010-1:2010 (3rd Ed) up to working voltage of 600 VRMS (DW-16) and 300 VRMS (D-8) 5000 VRMS (DW-16) and 3000 VRMS (D-8) Reinforced insulation per EN 609501:2006/A11:2009/A1:2010/ A12:2011/A2:2013 up to working voltage of 800 VRMS (DW-16) and 400 VRMS (D-8) Client ID number: 77311 6.8 Safety Limiting Values Safety limiting intends to minimize 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. PARAMETER TEST CONDITIONS MIN TYP MAX UNIT DW-16 PACKAGE IS Safety input, output, or supply current PS Safety input, output, or total power TS Maximum safety temperature RθJA = 86.5 °C/W, VI = 5.5 V, TJ = 150°C, TA = 25°C, see Figure 1 263 RθJA = 86.5 °C/W, VI = 3.6 V, TJ = 150°C, TA = 25°C, see Figure 1 401 RθJA = 86.5 °C/W, VI = 2.75 V, TJ = 150°C, TA = 25°C, see Figure 1 525 RθJA = 86.5 °C/W, TJ = 150°C, TA = 25°C, see Figure 2 mA 1445 mW 150 °C D-8 PACKAGE IS Safety input, output, or supply current PS Safety input, output, or total power TS Maximum safety temperature RθJA = 137.7 °C/W, VI = 5.5 V, TJ = 150°C, TA = 25°C, see Figure 3 165 RθJA = 137.7 °C/W, VI = 3.6 V, TJ = 150°C, TA = 25°C, see Figure 3 252 RθJA = 137.7 °C/W, VI = 2.75 V, TJ = 150°C, TA = 25°C, see Figure 3 330 RθJA = 137.7 °C/W, TJ = 150°C, TA = 25°C, see Figure 4 908 mW 150 °C mA 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 Thermal Information 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. Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated Product Folder Links: ISO7720-Q1 ISO7721-Q1 7 ISO7720-Q1, ISO7721-Q1 SLLSEU1 – MARCH 2017 www.ti.com 6.9 Electrical Characteristics—5-V Supply VCC1 = VCC2 = 5 V ± 10% (over recommended operating conditions unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP VCCO (1) – 0.4 4.8 VOH High-level output voltage IOH = –4 mA; see Figure 13 VOL Low-level output voltage IOL = 4 mA; see Figure 13 VIT+(IN) Rising input threshold voltage VIT-(IN) Falling input threshold voltage 0.3 x VCCI 0.4 x VCCI VI(HYS) Input threshold voltage hysteresis 0.1 × VCCI 0.2 × VCCI IIH High-level input current VIH = VCCI (1) at INx IIL Low-level input current VIL = 0 V at INx CMTI Common-mode transient immunity VI = VCCI or 0 V, VCM = 1200 V; see Figure 15 CI Input Capacitance (2) VI = VCC/ 2 + 0.4×sin(2πft), f = 1 MHz, VCC = 5 V (1) (2) MAX V 0.2 0.4 V 0.6 x VCCI 0.7 x VCCI V V V 10 –10 85 UNIT μA µA 100 kV/μs 2 pF VCCI = Input-side VCC; VCCO = Output-side VCC. Measured from input pin to ground. 6.10 Supply Current Characteristics—5-V Supply VCC1 = VCC2 = 5 V ± 10% (over recommended operating conditions unless otherwise noted) PARAMETER SUPPLY CURRENT TEST CONDITIONS MIN TYP MAX ICC1 0.8 1.1 ICC2 1.1 1.7 ICC1 2.9 4.2 ICC2 1.2 1.9 ICC1 1.8 2.7 ICC2 1.3 1.9 ICC1 1.9 2.7 ICC2 2.2 3 ICC1 2.5 3.2 ICC2 11.6 14 UNIT ISO7720-Q1 VI = VCCI (ISO7720-Q1), VI = 0 V (ISO7720-Q1 with F suffix) Supply current - DC signal VI = 0 V (ISO7720-Q1), VI = VCCI (ISO7720-Q1 with F suffix) 1 Mbps Supply current - AC signal All channels switching with square wave clock input; CL = 15 pF 10 Mbps 100 Mbps mA ISO7721-Q1 Supply current - DC signal Supply current - AC signal 8 VI = VCCI (ISO7721-Q1), VI = 0 V (ISO7721-Q1 with F suffix) ICC1, ICC2 1 1.6 VI = 0 V (ISO7721-Q1), VI = VCCI (ISO7721-Q1 with F suffix) ICC1, ICC2 2.2 3.2 1 Mbps ICC1, ICC2 1.7 2.4 10 Mbps ICC1, ICC2 2.2 3 100 Mbps ICC1, ICC2 7.3 9 All channels switching with square wave clock input; CL = 15 pF mA Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated Product Folder Links: ISO7720-Q1 ISO7721-Q1 ISO7720-Q1, ISO7721-Q1 www.ti.com SLLSEU1 – MARCH 2017 6.11 Electrical Characteristics—3.3-V Supply VCC1 = VCC2 = 3.3 V ± 10% (over recommended operating conditions unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP VCCO (1) – 0.3 3.2 VOH High-level output voltage IOH = –2 mA; see Figure 13 VOL Low-level output voltage IOL = 2 mA; see Figure 13 VIT+(IN) Rising input voltage threshold VIT-(IN) Falling input voltage threshold 0.3 x VCCI 0.4 x VCCI VI(HYS) Input threshold voltage hysteresis 0.1 × VCCI 0.2 × VCCI IIH High-level input current VIH = VCCI (1) at INx IIL Low-level input current VIL = 0 V at INx CMTI Common-mode transient immunity VI = VCCI or 0 V, VCM = 1200 V; see Figure 15 (1) MAX UNIT V 0.1 0.3 V 0.6 x VCCI 0.7 x VCCI V V V 10 –10 μA µA 85 100 kV/μs MIN TYP MAX ICC1 0.8 1.1 ICC2 1.1 1.7 ICC1 2.9 4.2 ICC2 1.2 1.9 ICC1 1.8 2.7 ICC2 1.2 1.9 ICC1 1.9 2.7 ICC2 1.9 2.6 ICC1 2.2 3.1 ICC2 8.6 11 VCCI = Input-side VCC; VCCO = Output-side VCC. 6.12 Supply Current Characteristics—3.3-V Supply VCC1 = VCC2 = 3.3 V ± 10% (over recommended operating conditions unless otherwise noted) PARAMETER SUPPLY CURRENT TEST CONDITIONS UNIT ISO7720-Q1 VI = VCCI (ISO7720-Q1), VI = 0 V (ISO7720-Q1 with F suffix) Supply current - DC signal VI = 0 V (ISO7720-Q1), VI = VCCI (ISO7720-Q1 with F suffix) 1 Mbps Supply current - AC signal All channels switching with square wave clock input; CL = 15 pF 10 Mbps 100 Mbps mA ISO7721-Q1 Supply current - DC signal Supply current - AC signal VI = VCCI (ISO7721-Q1), VI = 0 V (ISO7721-Q1 with F suffix) ICC1, ICC2 1 1.6 VI = 0 V (ISO7721-Q1), VI = VCCI (ISO7721-Q1 with F suffix) ICC1, ICC2 2.2 3.2 1 Mbps ICC1, ICC2 1.6 2.4 10 Mbps ICC1, ICC2 2 2.8 100 Mbps ICC1, ICC2 5.6 7 All channels switching with square wave clock input; CL = 15 pF Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated Product Folder Links: ISO7720-Q1 ISO7721-Q1 mA 9 ISO7720-Q1, ISO7721-Q1 SLLSEU1 – MARCH 2017 www.ti.com 6.13 Electrical Characteristics—2.5-V Supply VCC1 = VCC2 = 2.5 V ± 10% (over recommended operating conditions unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP VCCO (1) – 0.2 2.45 VOH High-level output voltage IOH = –1 mA; see Figure 13 VOL Low-level output voltage IOL = 1 mA; see Figure 13 VIT+(IN) Rising input voltage threshold VIT-(IN) Falling input voltage threshold 0.3 x VCCI 0.4 x VCCI VI(HYS) Input threshold voltage hysteresis 0.1 × VCCI 0.2 × VCCI IIH High-level input current VIH = VCCI (1) at INx IIL Low-level input current VIL = 0 V at INx CMTI Common-mode transient immunity VI = VCCI or 0 V, VCM = 1200 V; see Figure 15 (1) MAX V 0.05 0.2 V 0.6 x VCCI 0.7 x VCCI V V V 10 –10 85 UNIT μA μA 100 kV/μs VCCI = Input-side VCC; VCCO = Output-side VCC. 6.14 Supply Current Characteristics—2.5-V Supply VCC1 = VCC2 = 2.5 V ± 10% (over recommended operating conditions unless otherwise noted) PARAMETER TEST CONDITIONS SUPPLY CURRENT MIN TYP MAX UNIT ISO7720-Q1 VI = VCCI (ISO7720-Q1), VI = 0 V (ISO7720-Q1 with F suffix) ICC1 0.8 1.1 ICC2 1.1 1.7 VI = 0 V (ISO7720-Q1), VI = VCCI (ISO7720-Q1 with F suffix) ICC1 2.9 4.2 ICC2 1.2 1.9 ICC1 1.8 2.7 ICC2 1.3 1.9 ICC1 1.9 2.7 ICC2 1.7 2.4 ICC1 2.2 3 ICC2 6.8 9 Supply current - DC signal 1 Mbps Supply current - AC signal All channels switching with square wave clock input; CL = 15 pF 10 Mbps 100 Mbps mA ISO7721-Q1 Supply current - DC signal Supply current - AC signal 10 VI = VCCI (ISO7721-Q1), VI = 0 V (ISO7721-Q1 with F suffix) ICC1, ICC2 1 1.6 VI = 0 V (ISO7721-Q1), VI = VCCI (ISO7721-Q1 with F suffix) ICC1, ICC2 2.2 3.2 1 Mbps ICC1, ICC2 1.6 2.4 10 Mbps ICC1, ICC2 1.9 2.7 100 Mbps ICC1, ICC2 4.6 6 All channels switching with square wave clock input; CL = 15 pF mA Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated Product Folder Links: ISO7720-Q1 ISO7721-Q1 ISO7720-Q1, ISO7721-Q1 www.ti.com SLLSEU1 – MARCH 2017 6.15 Switching Characteristics—5-V Supply VCC1 = VCC2 = 5 V ± 10% (over recommended operating conditions unless otherwise noted) PARAMETER TEST CONDITIONS tPLH, tPHL Propagation delay time PWD Pulse width distortion (1) |tPHL – tPLH| tsk(o) Channel-to-channel output skew time (2) tsk(pp) Part-to-part skew time (3) tr Output signal rise time tf Output signal fall time MAX 11 16 ns 0.5 4.9 ns 4 ns 4.5 ns 1.8 3.9 ns 1.9 3.9 ns 0.1 0.3 μs Same direction channels See Figure 13 tDO Default output delay time from input power loss tie Time interval error 216 – 1 PRBS data at 100 Mbps (3) TYP 6 See Figure 13 Measured from the time VCC goes below 1.7 V. See Figure 14 (1) (2) MIN 1 UNIT 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. 6.16 Switching Characteristics—3.3-V Supply VCC1 = VCC2 = 3.3 V ± 10% (over recommended operating conditions unless otherwise noted) PARAMETER TEST CONDITIONS tPLH, tPHL Propagation delay time PWD Pulse width distortion (1) |tPHL – tPLH| tsk(o) Channel-to-channel output skew time (2) tsk(pp) Part-to-part skew time (3) tr Output signal rise time tf Output signal fall time See Figure 13 MAX 11 16 ns 0.5 5 ns 4.1 ns 4.5 ns 0.7 3 ns 0.7 3 ns 0.1 0.3 μs See Figure 13 tDO Default output delay time from input power loss tie Time interval error 216 – 1 PRBS data at 100 Mbps (3) TYP 6 Same direction channels Measured from the time VCC goes below 1.7 V. See Figure 14 (1) (2) MIN 1 UNIT 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. 6.17 Switching Characteristics—2.5-V Supply VCC1 = VCC2 = 2.5 V ± 10% (over recommended operating conditions unless otherwise noted) PARAMETER tPLH, tPHL Propagation delay time PWD Pulse width distortion (1) |tPHL – tPLH| TEST CONDITIONS See Figure 13 tsk(o) Channel-to-channel output skew time tsk(pp) Part-to-part skew time (3) tr Output signal rise time tf Output signal fall time tDO tie (1) (2) (3) (2) Time interval error TYP MAX UNIT 7.5 12 18.5 ns 0.5 5.1 ns 4.1 ns 4.6 ns 1 3.5 ns 1 3.5 ns 0.1 0.3 μs Same direction channels See Figure 13 Default output delay time from input power loss MIN Measured from the time VCC goes below 1.7 V. See Figure 14 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 © 2017, Texas Instruments Incorporated Product Folder Links: ISO7720-Q1 ISO7721-Q1 11 ISO7720-Q1, ISO7721-Q1 SLLSEU1 – MARCH 2017 www.ti.com 6.18 Insulation Characteristics Curves 1600 VCC1 = VCC2 = 2.75 V VCC1 = VCC2 = 3.6 V VCC1 = VCC2 = 5.5 V 500 1400 Safety Limiting Current (mA) Safety Limiting Current (mA) 600 400 300 200 100 800 600 400 0 0 50 100 150 Ambient Temperature (qC) 0 200 50 D001 Figure 1. Thermal Derating Curve for Limiting Current per VDE for DW-16 Package 100 150 Ambient Temperature (qC) 200 D002 Figure 2. Thermal Derating Curve for Limiting Power per VDE for DW-16 Package 350 1000 VCC1 = VCC2 = 2.75 V VCC1 = VCC2 = 3.6 V VCC1 = VCC2 = 5.5 V 900 Safety Limiting Current (mA) 300 Safety Limiting Current (mA) 1000 200 0 250 200 150 100 50 800 700 600 500 400 300 200 100 0 0 0 50 100 150 Ambient Temperature (qC) 200 0 50 D003 Figure 3. Thermal Derating Curve for Limiting Current per VDE for D-8 Package 12 1200 100 150 Ambient Temperature (qC) 200 D004 Figure 4. Thermal Derating Curve for Limiting Power per VDE for D-8 Package Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated Product Folder Links: ISO7720-Q1 ISO7721-Q1 ISO7720-Q1, ISO7721-Q1 www.ti.com SLLSEU1 – MARCH 2017 6.19 Typical Characteristics 5 14 ICC1 at 2.5 V ICC2 at 2.5 V ICC1 at 3.3 V ICC1 at 2.5 V ICC2 at 2.5 V ICC1 at 3.3 V 4.5 4 10 Supply Current (mA) Supply Current (mA) 12 ICC2 at 3.3 V ICC1 at 5 V ICC2 at 5 V 8 6 4 ICC2 at 3.3 V ICC1 at 5 V ICC2 at 5 V 3.5 3 2.5 2 1.5 1 2 0.5 0 0 0 25 50 Data Rate (Mbps) TA = 25°C 75 0 100 CL = 15 pF 50 Data Rate (Mbps) TA = 25°C Figure 5. ISO7720-Q1 Supply Current vs Data Rate (With 15-pF Load) 75 100 D006 CL = No Load Figure 6. ISO7720-Q1 Supply Current vs Data Rate (With No Load) 4 9 ICC1, ICC2 at 2.5 V ICC1, ICC2 at 3.3 V ICC1, ICC2 at 5 V 8 ICC1, ICC2 at 2.5 V ICC1, ICC2 at 3.3 V ICC1, ICC2 at 5 V 3.5 Supply Current (mA) 7 Supply Current (mA) 25 D005 6 5 4 3 2 3 2.5 2 1.5 1 0.5 1 0 0 0 25 TA = 25°C 50 Data Rate (Mbps) 75 0 100 25 D007 CL = 15 pF TA = 25°C Figure 7. ISO7721-Q1 Supply Current vs Data Rate (With 15-pF Load) 50 Data Rate (Mbps) 75 100 D008 CL = No Load Figure 8. ISO7721-Q1 Supply Current vs Data Rate (With No Load) 6 0.9 Low-Level Output Voltage (V) High-Level Output Voltage (V) 0.8 5 4 3 2 VCC at 2.5 V VCC at 3.3 V VCC at 5 V 1 0 -15 0.7 0.6 0.5 0.4 0.3 0.2 VCC at 2.5 V VCC at 3.3 V VCC at 5 V 0.1 0 -10 -5 High-Level Output Current (mA) 0 0 5 10 Low-Level Output Current (mA) D011 TA = 25°C 15 D012 TA = 25°C Figure 9. High-Level Output Voltage vs High-level Output Current Figure 10. Low-Level Output Voltage vs Low-Level Output Current Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated Product Folder Links: ISO7720-Q1 ISO7721-Q1 13 ISO7720-Q1, ISO7721-Q1 SLLSEU1 – MARCH 2017 www.ti.com Typical Characteristics (continued) 14 Propagation Delay Time (ns) Power Supply UVLO Threshold (V) 2.1 2.05 2 1.95 1.9 1.85 1.8 1.75 1.7 VCC1+ VCC1- 1.65 1.6 -55 -25 5 35 65 Free-Air Temperature (qC) 12 11 10 tPLH at 2.5 V tPHL at 2.5 V tPLH at 3.3 V 9 VCC2+ VCC295 125 8 -55 -25 D011 Figure 11. Power Supply Undervoltage Threshold vs Free-Air Temperature 14 13 5 35 65 Free Air Temperature (qC) tPHL at 3.3 V tPLH at 5 V tPHL at 5 V 95 125 D012 Figure 12. Propagation Delay Time vs Free-Air Temperature Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated Product Folder Links: ISO7720-Q1 ISO7721-Q1 ISO7720-Q1, ISO7721-Q1 www.ti.com SLLSEU1 – MARCH 2017 7 Parameter Measurement Information Isolation Barrier IN Input Generator (See Note A) VI VCCI VI OUT 50% 50% 0V tPLH CL See Note B VO 50 tPHL 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 ≤ 3 ns, 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 13. Switching Characteristics Test Circuit and Voltage Waveforms VI See Note B VCC VCC Isolation Barrier IN = 0 V (Devices without suffix F) IN = VCC (Devices with suffix F) VI IN 1.7 V 0V OUT VO tDO CL See Note A default high VOH 50% VO VOL default low A. CL = 15 pF and includes instrumentation and fixture capacitance within ±20%. B. Power Supply Ramp Rate = 10 mV/ns Figure 14. 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 15. Common-Mode Transient Immunity Test Circuit Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated Product Folder Links: ISO7720-Q1 ISO7721-Q1 15 ISO7720-Q1, ISO7721-Q1 SLLSEU1 – MARCH 2017 www.ti.com 8 Detailed Description 8.1 Overview The ISO772x-Q1 family of devices has 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 incorporate 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 16, shows a functional block diagram of a typical channel. 8.2 Functional Block Diagram Transmitter TX IN Receiver OOK Modulation TX Signal Conditioning Oscillator SiO2 based Capacitive Isolation Barrier RX Signal Conditioning Envelope Detection RX OUT Emissions Reduction Techniques Copyright © 2017, Texas Instruments Incorporated Figure 16. Conceptual Block Diagram of a Digital Capacitive Isolator Figure 17 shows a conceptual detail of how the OOK scheme works. TX IN Carrier signal through isolation barrier RX OUT Figure 17. On-Off Keying (OOK) Based Modulation Scheme 16 Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated Product Folder Links: ISO7720-Q1 ISO7721-Q1 ISO7720-Q1, ISO7721-Q1 www.ti.com SLLSEU1 – MARCH 2017 8.3 Feature Description The ISO772x-Q1 family of devices is available in two channel configurations and default output state options to enable a variety of application uses. Table 1 lists the device features of the ISO772x-Q1 devices. Table 1. Device Features PART NUMBER MAXIMUM DATA RATE CHANNEL DIRECTION DEFAULT OUTPUT STATE ISO7720-Q1 100 Mbps 2 Forward, 0 Reverse High ISO7720-Q1 with F suffix 100 Mbps 2 Forward, 0 Reverse Low ISO7721-Q1 ISO7721-Q1 with F suffix (1) 100 Mbps 100 Mbps 1 Forward, 1 Reverse 1 Forward, 1 Reverse High Low PACKAGE RATED ISOLATION (1) DW-16 5000 VRMS / 8000 VPK D-8 3000 VRMS / 4242 VPK DW-16 5000 VRMS / 8000 VPK D-8 3000 VRMS / 4242 VPK DW-16 5000 VRMS / 8000 VPK D-8 3000 VRMS / 4242 VPK DW-16 5000 VRMS / 8000 VPK D-8 3000 VRMS / 4242 VPK See the Safety-Related Certifications section for detailed isolation ratings. 8.3.1 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 ISO772xQ1 family of devices incorporates many chip-level design improvements for overall system robustness. Some of these improvements include: • Robust ESD protection cells 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. Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated Product Folder Links: ISO7720-Q1 ISO7721-Q1 17 ISO7720-Q1, ISO7721-Q1 SLLSEU1 – MARCH 2017 www.ti.com 8.4 Device Functional Modes Table 2 lists the functional modes for the ISO772x-Q1 devices. Table 2. Function Table (1) VCCI VCCO PU (1) (2) (3) INPUT (INx) (2) OUTPUT (OUTx) H H L L Open Default Default mode: When INx is open, the corresponding channel output goes to the default high logic state. The default is High for ISO772x-Q1 and Low for ISO772x-Q1 with F suffix. Default mode: When VCCI is unpowered, a channel output assumes the logic state based on the selected default option. The default is High for ISO772x-Q1 and Low for ISO772x-Q1 with F suffix. When VCCI transitions from unpowered to powered-up, a channel output assumes the logic state of the input. When VCCI transitions from powered-up to unpowered, channel output assumes the selected default state. COMMENTS Normal Operation: A channel output assumes the logic state of the input. PU PD PU X Default X PD X Undetermined 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 the 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 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. 8.4.1 Device I/O Schematics Input (Devices without F suffix) VCCI VCCI VCCI Input (Devices with F suffix) VCCI VCCI VCCI VCCI 1.5 M 985 985 INx INx 1.5 M Output VCCO ~20 OUTx Figure 18. Device I/O Schematics 18 Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated Product Folder Links: ISO7720-Q1 ISO7721-Q1 ISO7720-Q1, ISO7721-Q1 www.ti.com SLLSEU1 – MARCH 2017 9 Applications and Implementation NOTE Information in the following applications sections is not part of the TI component specification, and TI does not warrant the 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 ISO772x-Q1 devices are high-performance, dual-channel digital isolators. The devices use single-ended CMOS-logic switching technology. The supply voltage range is from 2.25 V to 5.5 V for both supplies, VCC1 and VCC2. When designing with digital isolators, keep in mind that because of 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 The ISO7721-Q1 device can be used with Texas Instruments' Piccolo™ microcontroller, CAN transceiver, transformer driver, and voltage regulator to create an isolated CAN interface. VS 3.3 V 0.1 F 2 VCC D2 3 1:1.33 MBR0520L 1 SN6501-Q1 GND D1 10 F 0.1 F IN OUT 5 10 F TPS76333-Q1 3 1 EN GND 3.3VISO 2 10 F MBR0520L 4, 5 ISO Barrier 0.1 F 0.1 F 0.1 F 1 29,57 VCC1 VDDIO CANRXA 26 TMS320F28035PAGQ CANTXA 25 VSS 2 8 GND1 3 VCC2 VCC INA 7 4 6 1 OUTA ISO7721-Q1 3 OUTB INB 4 6,28 0.1 F GND2 5 RS 8 R D CANH SN65HVD231Q CANL 10 (optional) 10 (optional) 7 6 Vref 5 GND SM712 2 4.7 nF / 2 kV Copyright © 2017, Texas Instruments Incorporated Figure 19. Isolated 4-mA to 20-mA Current Loop Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated Product Folder Links: ISO7720-Q1 ISO7721-Q1 19 ISO7720-Q1, ISO7721-Q1 SLLSEU1 – MARCH 2017 www.ti.com Typical Application (continued) 9.2.1 Design Requirements To design with these devices, use the parameters listed in Table 3. Table 3. Design Parameters PARAMETER VALUE Supply voltage, VCC1 and VCC2 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 9.2.2 Detailed Design Procedure Unlike optocouplers, which require external components to improve performance, provide bias, or limit current, the ISO772x-Q1 devices only require two external bypass capacitors to operate. VCC1 VCC2 GND1 1 GND1 16 GND2 GND2 0.1 µF 0.1 µF NC 2 15 NC VCC1 3 14 VCC2 GND2 OUTA OUTA 4 INB ISOLATION GND1 13 INA INA INB 5 12 OUTB NC 6 11 NC GND1 7 10 NC OUTB GND1 NC 8 9 GND2 GND2 Figure 20. Typical ISO7721-Q1 Circuit Hook-up 9.2.3 Application Curve 1 V/ div 1 V/ div The following typical eye diagrams of the ISO772x-Q1 family of devices indicate low jitter and wide open eye at the maximum data rate of 100 Mbps. Time = 3.5 ns / div Time = 3.5 ns / div Figure 21. ISO7720-Q1 Eye Diagram at 100 Mbps PRBS, 5-V Supplies and 25°C 20 Figure 22. ISO7721-Q1 Eye Diagram at 100 Mbps PRBS, 5-V Supplies and 25°C Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated Product Folder Links: ISO7720-Q1 ISO7721-Q1 ISO7720-Q1, ISO7721-Q1 www.ti.com SLLSEU1 – MARCH 2017 10 Power Supply Recommendations To help ensure reliable operation at data rates and supply voltages, a 0.1-μF bypass capacitor is recommended at the 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-Q1. For such applications, detailed power supply design and transformer selection recommendations are available in SN6501-Q1 Transformer Driver for Isolated Power Supplies. 11 Layout 11.1 Layout Guidelines A minimum of four layers is required to accomplish a low EMI PCB design (see Figure 23). 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 or 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, refer to the Digital Isolator Design Guide. 11.1.1 PCB Material For digital circuit boards operating at less than 150 Mbps, (or rise and fall times greater than 1 ns), and trace lengths of up to 10 inches, use standard FR-4 UL94V-0 printed circuit board. This PCB is preferred over cheaper alternatives because of lower dielectric losses at high frequencies, less moisture absorption, greater strength and stiffness, and the self-extinguishing flammability-characteristics. 11.2 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 23. Layout Example Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated Product Folder Links: ISO7720-Q1 ISO7721-Q1 21 ISO7720-Q1, ISO7721-Q1 SLLSEU1 – MARCH 2017 www.ti.com 12 Device and Documentation Support 12.1 Documentation Support 12.1.1 Related Documentation For related documentation, see the following: • Digital Isolator Design Guide • Isolation Glossary • SN6501-Q1 Transformer Driver for Isolated Power Supplies • SN65HVD231Q 3.3-V CAN Transceivers • TPS763xx-Q1 Low-Power, 150-mA, Low-Dropout Linear Regulators • TMS320F2803x Piccolo™ Microcontrollers 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 4. Related Links PARTS PRODUCT FOLDER ORDER NOW TECHNICAL DOCUMENTS TOOLS & SOFTWARE SUPPORT & COMMUNITY ISO7720-Q1 Click here Click here Click here Click here Click here ISO7721-Q1 Click here Click here Click here Click here Click here 12.3 Receiving Notification of Documentation Updates To receive notification of documentation updates, navigate to the device product folder on ti.com. In the upper right corner, click on Alert me to register and receive a weekly digest of any product information that has changed. For change details, review the revision history included in any revised document. 12.4 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. 12.5 Trademarks Piccolo, E2E are trademarks of Texas Instruments. All other trademarks are the property of their respective owners. 12.6 Electrostatic Discharge Caution This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more susceptible to damage because very small parametric changes could cause the device not to meet its published specifications. 12.7 Glossary SLYZ022 — TI Glossary. This glossary lists and explains terms, acronyms, and definitions. 22 Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated Product Folder Links: ISO7720-Q1 ISO7721-Q1 ISO7720-Q1, ISO7721-Q1 www.ti.com SLLSEU1 – MARCH 2017 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. Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated Product Folder Links: ISO7720-Q1 ISO7721-Q1 23 ISO7720-Q1, ISO7721-Q1 SLLSEU1 – MARCH 2017 www.ti.com PACKAGE OUTLINE D0008B SOIC - 1.75 mm max height SCALE 2.800 SOIC C SEATING PLANE .228-.244 TYP [5.80-6.19] A .004 [0.1] C PIN 1 ID AREA 6X .050 [1.27] 8 1 2X .150 [3.81] .189-.197 [4.81-5.00] NOTE 3 4 5 B .150-.157 [3.81-3.98] NOTE 4 8X .012-.020 [0.31-0.51] .010 [0.25] C A B .069 MAX [1.75] .005-.010 TYP [0.13-0.25] SEE DETAIL A .010 [0.25] .004-.010 [ 0.11 -0.25] 0 -8 .016-.050 [0.41-1.27] DETAIL A .041 [1.04] TYPICAL 4221445/B 04/2014 NOTES: 1. Linear dimensions are in inches [millimeters]. Dimensions in parenthesis are for reference only. Controlling dimensions are in inches. 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 .006 [0.15], per side. 4. This dimension does not include interlead flash. 5. Reference JEDEC registration MS-012, variation AA. www.ti.com 24 Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated Product Folder Links: ISO7720-Q1 ISO7721-Q1 ISO7720-Q1, ISO7721-Q1 www.ti.com SLLSEU1 – MARCH 2017 EXAMPLE BOARD LAYOUT D0008B SOIC - 1.75 mm max height SOIC 8X (.061 ) [1.55] SEE DETAILS SYMM 8X (.055) [1.4] SEE DETAILS SYMM 1 1 8 8X (.024) [0.6] 8 SYMM 8X (.024) [0.6] 5 4 6X (.050 ) [1.27] SYMM 5 4 6X (.050 ) [1.27] (.213) [5.4] (.217) [5.5] HV / ISOLATION OPTION .162 [4.1] CLEARANCE / CREEPAGE IPC-7351 NOMINAL .150 [3.85] CLEARANCE / CREEPAGE LAND PATTERN EXAMPLE SCALE:6X SOLDER MASK OPENING METAL SOLDER MASK OPENING METAL .0028 MAX [0.07] ALL AROUND .0028 MIN [0.07] ALL AROUND SOLDER MASK DEFINED NON SOLDER MASK DEFINED SOLDER MASK DETAILS 4221445/B 04/2014 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 Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated Product Folder Links: ISO7720-Q1 ISO7721-Q1 25 ISO7720-Q1, ISO7721-Q1 SLLSEU1 – MARCH 2017 www.ti.com EXAMPLE STENCIL DESIGN D0008B SOIC - 1.75 mm max height SOIC 8X (.061 ) [1.55] 8X (.055) [1.4] SYMM SYMM 1 1 8 8X (.024) [0.6] 6X (.050 ) [1.27] 8 SYMM 8X (.024) [0.6] 5 4 6X (.050 ) [1.27] SYMM 5 4 (.217) [5.5] (.213) [5.4] HV / ISOLATION OPTION .162 [4.1] CLEARANCE / CREEPAGE IPC-7351 NOMINAL .150 [3.85] CLEARANCE / CREEPAGE SOLDER PASTE EXAMPLE BASED ON .005 INCH [0.127 MM] THICK STENCIL SCALE:6X 4221445/B 04/2014 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 26 Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated Product Folder Links: ISO7720-Q1 ISO7721-Q1 ISO7720-Q1, ISO7721-Q1 www.ti.com SLLSEU1 – MARCH 2017 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 0.33 TYP 0.10 SEE DETAIL A 0.25 GAGE PLANE 0.3 0.1 0 -8 1.27 0.40 DETAIL A (1.4) TYPICAL 4221009/B 07/2016 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 MS-013. www.ti.com Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated Product Folder Links: ISO7720-Q1 ISO7721-Q1 27 ISO7720-Q1, ISO7721-Q1 SLLSEU1 – MARCH 2017 www.ti.com 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 R0.05 TYP R0.05 TYP (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 METAL SOLDER MASK OPENING SOLDER MASK OPENING METAL 0.07 MAX ALL AROUND 0.07 MIN ALL AROUND SOLDER MASK DEFINED NON SOLDER MASK DEFINED SOLDER MASK DETAILS 4221009/B 07/2016 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 28 Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated Product Folder Links: ISO7720-Q1 ISO7721-Q1 ISO7720-Q1, ISO7721-Q1 www.ti.com SLLSEU1 – MARCH 2017 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 R0.05 TYP R0.05 TYP (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/B 07/2016 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 Submit Documentation Feedback Copyright © 2017, Texas Instruments Incorporated Product Folder Links: ISO7720-Q1 ISO7721-Q1 29 PACKAGE OPTION ADDENDUM www.ti.com 7-Mar-2017 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Pins Package Drawing Qty Eco Plan Lead/Ball Finish MSL Peak Temp (2) (6) (3) Op Temp (°C) Device Marking (4/5) ISO7720FQDWQ1 PREVIEW SOIC DW 16 40 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR -40 to 125 ISO7720FQ ISO7720FQDWRQ1 PREVIEW SOIC DW 16 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR -40 to 125 ISO7720FQ ISO7720QDWQ1 PREVIEW SOIC DW 16 40 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR -40 to 125 ISO7720Q ISO7720QDWRQ1 PREVIEW SOIC DW 16 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR -40 to 125 ISO7720Q ISO7721FQDWQ1 PREVIEW SOIC DW 16 40 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR -40 to 125 ISO7721FQ ISO7721FQDWRQ1 PREVIEW SOIC DW 16 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR -40 to 125 ISO7721FQ ISO7721QDWQ1 PREVIEW SOIC DW 16 40 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR -40 to 125 ISO7721Q ISO7721QDWRQ1 PREVIEW SOIC DW 16 2000 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR -40 to 125 ISO7721Q (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) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability information and additional product content details. TBD: The Pb-Free/Green conversion plan has not been defined. Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes. Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above. Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material) (3) MSL, Peak Temp. - The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature. Addendum-Page 1 Samples PACKAGE OPTION ADDENDUM www.ti.com (4) 7-Mar-2017 There may be additional marking, which relates to the logo, the lot trace code information, or the environmental category on the device. (5) Multiple Device Markings will be inside parentheses. Only one Device Marking contained in parentheses and separated by a "~" will appear on a device. If a line is indented then it is a continuation of the previous line and the two combined represent the entire Device Marking for that device. (6) Lead/Ball Finish - Orderable Devices may have multiple material finish options. Finish options are separated by a vertical ruled line. Lead/Ball Finish values may wrap to two lines if the finish value exceeds the maximum column width. Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. 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