Quad Isolated Precision Gate Driver, 0.1 A Output ADuM1420 FEATURES GENERAL DESCRIPTION Quad outputs isolated from input and each other Input-to-output differential: ±700 V peak Output-to-output differential: ±700 V peak 0.1 A peak output current High frequency operation: 5 MHz maximum High common-mode transient immunity: >75 kV/μs High temperature operation: 105°C Wide body, 28-lead SOIC The ADuM1420 1 is a quad isolated gate driver that employs Analog Devices, Inc. iCoupler® technology to provide independent and isolated high-side and low-side outputs. In comparison to gate drivers employing high voltage level translation methodologies, the ADuM1420 offers the benefit of true, galvanic isolation between the input and each of the four outputs. Each output can be operated up to ±700 V peak relative to the input, thereby supporting low-side switching to negative voltages. The differential voltage between any two outputs can be as high as 700 V peak. APPLICATIONS Plasma display modules 1 Protected by U.S. Patents 5,952,849; 6,291,907; and 7,075,329. Other patents pending. VOA 1 ENCODE 28 VDDB 27 VOB 26 GNDB NC 4 25 NC NC 5 24 NC NC 6 23 GNDC GND1 7 22 VDDC 21 VOC 20 GNDC 19 NC 18 NC 17 VDDD 16 VOD 15 GNDD ENCODE VDDA 2 GNDA 3 ADuM1420 VDD1 8 ENCODE ENCODE VIA 9 VIB 10 VIC 11 ENCODE ERROR DETECTION ENCODE VID 12 ED DISABLE 13 ENCODE ENCODE GND1 14 NC = NO CONNECT 06863-001 FUNCTIONAL BLOCK DIAGRAM Figure 1. Rev. A Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective owners. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 www.analog.com Fax: 781.461.3113 ©2008 Analog Devices, Inc. All rights reserved. ADuM1420 TABLE OF CONTENTS Features .............................................................................................. 1 Recommended Operating Conditions .......................................4 Applications....................................................................................... 1 Absolute Maximum Ratings ............................................................5 General Description ......................................................................... 1 ESD Caution...................................................................................5 Functional Block Diagram .............................................................. 1 Pin Configuration and Function Descriptions..............................7 Revision History ............................................................................... 2 Typical Performance Characteristics ..............................................8 Specifications..................................................................................... 3 Application Information...................................................................9 Electrical Characteristics............................................................. 3 Common-Mode Transient Immunity ........................................9 Package Characteristics ............................................................... 4 Power-Up/Power-Down Considerations ................................ 10 Regulatory Information............................................................... 4 Outline Dimensions ....................................................................... 11 Insulation and Safety-Related Specifications............................ 4 Ordering Guide .......................................................................... 11 REVISION HISTORY 2/08—Revision A: Initial Version Rev. A | Page 2 of 12 ADuM1420 SPECIFICATIONS ELECTRICAL CHARACTERISTICS All voltages are relative to their respective ground. 4.5 V ≤ VDD1 ≤ 5.5 V, 12 V ≤ VDDA ≤ 18 V, 12 V ≤ VDDB ≤ 18 V, 12 V ≤ VDDC ≤ 18 V, 12 V ≤ VDDD ≤ 18 V. All minimum/maximum specifications apply over the entire recommended operating range, unless otherwise noted. All typical specifications are at TA = 25°C, VDD1 = 5 V, VDDA = 15 V, VDDB = 15 V. Table 1. Parameter DC SPECIFICATIONS Input Supply Current, Quiescent Output Supply Current (A, B, C, or D), Quiescent Input Supply Current, 10 Mbps Output Supply Current (A, B, C, or D), 10 Mbps Input Currents Logic High Input Threshold Logic Low Input Threshold Logic High Output Voltages Logic Low Output Voltages Output Short-Circuit Pulsed Current 1 SWITCHING SPECIFICATIONS Minimum Pulse Width 2 Maximum Switching Frequency 3 Propagation Delay 4 Change vs. Temperature Pulse Width Distortion, |tPLH − tPHL| Channel-to-Channel Matching, Rising vs. Rising Edges 5 Channel-to-Channel Matching, Falling vs. Falling Edges5 Channel-to-Channel Matching, Rising vs. Falling Edges 6 Part-to-Part Matching, Rising or Falling Edges 7 Symbol Min IDDI (Q) IDDA (Q), IDDB (Q), IDDC (Q), IDDD (Q) IDDI (10) IDDA (10), IDDB (10), IDDC (10), IDDD (10) IIA, IIB, IIC, IID, IDISABLE VIH VIL VOAH, VOBH, VOCH, VODH VOAL, VOBL, VOCL, VODL IOA (SC), IOB (SC), IOC (SC), IOD (SC) −10 Max Unit 5.1 0.3 8.0 1.2 mA mA 12 16 16 22 mA mA +0.01 +10 μA 0.8 V V V IOA, IOB, IOC, IOD = −1 mA V IOA, IOB, IOC, IOD = 1 mA 2.0 VDDA − 0.1, VDDB − 0.1, VDDC − 0.1, VDDD − 0.1 VDDA, VDDB, VDDC, VDDD 0.1 100 tPHL, tPLH 100 5 99 PWD tR/tF 1 Test Conditions CL = 200 pF 0 V ≤ VIA, VIB, VIC, VID, VDISABLE ≤ VDD1 mA PW Part-to-Part Matching, Rising vs. Falling Edges 8 Output Rise/Fall Time (10% to 90%) Typ 110 85 8 5 ns Mbps ns ps/°C ns ns CL = 200 pF, ED DISABLE = 0 CL = 200 pF, ED DISABLE = 0 CL = 200 pF, ED DISABLE = 0 CL = 200 pF, ED DISABLE = 0 CL = 200 pF, ED DISABLE = 0 CL = 200 pF, ED DISABLE = 0 9 ns CL = 200 pF, ED DISABLE = 0 13 ns CL = 200 pF, ED DISABLE = 0 10 ns 18 ns 25 ns CL = 200 pF, ED DISABLE = 0, input tR = 3 ns CL = 200 pF, ED DISABLE = 0, input tR = 3 ns CL = 200 pF, ED DISABLE = 0 128 Short-circuit duration of less than 1 second. Average power must conform to the limit shown under the Absolute Maximum Ratings. The minimum pulse width is the shortest pulse width at which the specified timing parameters are guaranteed. The maximum switching frequency is the maximum signal frequency at which the specified timing parameters are guaranteed. 4 tPHL propagation delay is measured from the 50% level of the falling edge of the VIx signal to the 50% level of the falling edge of the VOx signal. tPLH propagation delay is measured from the 50% level of the rising edge of the VIx signal to the 50% level of the rising edge of the VOx signal. 5 Channel-to-channel matching, rising, or falling edges is the magnitude of the propagation delay difference between any two channels of the same part when the inputs are either both rising or falling edges. The supply voltages and the loads on each channel are equal. 6 Channel-to-channel matching, rising vs. falling edges is the magnitude of the propagation delay difference between any two channels of the same part when one input is a rising edge and the other input is a falling edge. The supply voltages and loads on each channel are equal. 7 Part-to-part matching, rising, or falling edges is the magnitude of the propagation delay difference between the same channels of two different parts when the inputs are either both rising or falling edges. The supply voltages, temperatures, and loads of each part are equal. 8 Part-to-part matching, rising vs. falling edges is the magnitude of the propagation delay difference between the same channels of two different parts when one input is a rising edge and the other input is a falling edge. The supply voltages, temperatures, and loads of each part are equal. 2 3 Rev. A | Page 3 of 12 ADuM1420 PACKAGE CHARACTERISTICS Table 2. Parameter Resistance (Input-to-Output) 1 Capacitance (Input-to-Output)1 Input Capacitance IC Junction-to-Ambient Thermal Resistance IC Junction-to-Case Thermal Resistance Moisture Sensitivity Level 1 Symbol RI-O CI-O CI θJA θJC Min Typ 1012 2.0 4.0 54 13 Max Unit Ω pF pF °C/W °C/W Test Conditions f = 1 MHz 3 The device is considered a 2-terminal device: Pin 1 through Pin 14 are shorted together, and Pin 15 through Pin 28 are shorted together. REGULATORY INFORMATION The ADuM1420 will be approved by the organization listed in Table 3. Table 3. UL 1 (Pending) Recognized under 1577 component recognition program, basic insulation, 1667 V rms isolation voltage. 1 In accordance with UL 1577, each ADuM1420 is proof tested by applying an insulation test voltage ≥ 2000 V rms for 1 second (current leakage detection limit = 5 μA). INSULATION AND SAFETY-RELATED SPECIFICATIONS Table 4. Parameter Rated Dielectric Insulation Voltage Minimum External Air Gap (Clearance) Symbol L(I01) Value 1667 2.1 min Unit V rms mm Minimum External Tracking (Creepage) L(I02) 2.1 min mm Minimum Internal Gap (Internal Clearance) Tracking Resistance (Comparative Tracking Index) Isolation Group CTI 0.017 min >175 IIIa mm V Conditions 1-minute duration Measured from input terminals to output terminals B-D, shortest distance through air Measured from input terminals to output terminals B-D, shortest distance path along body Insulation distance through insulation DIN IEC 112/VDE 0303 Part 1 Material Group (DIN VDE 0110, 1/89, Table 1) RECOMMENDED OPERATING CONDITIONS Table 5. Parameter Operating Temperature Input Supply Voltage 1 Output Supply Voltages1 Input Signal Rise and Fall Times Common-Mode Transient Immunity, Input to Output 2 Common-Mode Transient Immunity, Between Outputs2 Transient Immunity, Supply Voltages2 1 2 Symbol TA VDD1 VDDA, VDDB Min −40 4.5 12 −75 −75 −75 All voltages are relative to their respective ground. See the Common-Mode Transient Immunity section for additional data. Rev. A | Page 4 of 12 Max +105 5.5 18 100 +75 +75 +75 Unit °C V V ns kV/μs kV/μs kV/μs ADuM1420 ABSOLUTE MAXIMUM RATINGS Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only; functional operation of the device at these or any other conditions above those indicated in the operational section of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Table 6. Parameter Storage Temperature (TST) Ambient Operating Temperature (TA) Input Supply Voltage (VDD1) 1 Output Supply Voltage (VDDA, VDDB, VDDC, VDDD)1 Input Voltage (VIA, VIB, VIC, VID)1 Output Voltage (VOA, VOB, VOC, VOD)1 Input-to-Output Voltage 2 Output Differential Voltage 3 Output DC Current (IOA, IOB) Common-Mode Transients 4 Rating −55°C to +150°C −40°C to +105°C −0.5 V to +7.0 V −0.5 V to +27 V Ambient temperature = 25°C, unless otherwise noted. −0.5 V to VDDI + 0.5 V −0.5 V to VDDA + 0.5 V, VDDB + 0.5 V, VDDC + 0.5 V, VDDD + 0.5 V −700 V peak to +700 V peak 700 V peak −20 mA to +20 mA −100 kV/μs to +100 kV/μs B ESD CAUTION 1 All voltages are relative to their respective ground. Input-to-output voltage is defined as GNDx − GND1 where x is either A, B, C, or D. 3 Output differential voltage is defined as GNDx − GNDy where x and y differ from each other and are either A, B, C, or D. 4 Refers to common-mode transients across any insulation barrier. Commonmode transients exceeding the Absolute Maximum Ratings may cause latchup or permanent damage. 2 Rev. A | Page 5 of 12 ADuM1420 Table 7. Truth Table (Positive Logic) VIA Input L L L L L L L L H H H H H H H H L L L L L L L L H H H H H H H H X VIB Input L L L L H H H H L L L L H H H H L L L L H H H H L L L L H H H H X VIC Input L L H H L L H H L L H H L L H H L L H H L L H H L L H H L L H H X VID Input L H L H L H L H L H L H L H L H L H L H L H L H L H L H L H L H X ED DISABLE L L L L L L L L L L L L L L L L NC or H NC or H NC or H NC or H NC or H NC or H NC or H NC or H NC or H NC or H NC or H NC or H NC or H NC or H NC or H NC or H X VOA Output L L L L L L L L H H L L L L L L L L L L L L L L H H H H H H H H L 1 VOB Output L L L L H L H L L L L L L L L L L L L L H H H H L L L L H H H H L VOC Output L L H L L L H L L L L L L L L L L L H H L L H H L L H H L L H H L VOD Output L H L L L L L L L H L L L L L L L H L H L H L H L H L H L H L H L VDD1 State 1 Powered Powered Powered Powered Powered Powered Powered Powered Powered Powered Powered Powered Powered Powered Powered Powered Powered Powered Powered Powered Powered Powered Powered Powered Powered Powered Powered Powered Powered Powered Powered Powered Unpowered 2 Powered refers to the situation in which VDD1 is within the recommended operating conditions. Unpowered refers to the situation in which VDD1 ≤ 2.0 V. Operation outside the recommended operating conditions is not recommended. See the Power-Up/Power-Down Considerations section for more information. 2 Output returns to input state within 1 μs of VDD1 power restoration. Rev. A | Page 6 of 12 ADuM1420 PIN CONFIGURATION AND FUNCTION DESCRIPTIONS VOA 1 28 VDDB VDDA 2 27 VOB GNDA 3 26 GNDB NC 4 25 NC NC 5 24 NC NC 6 ADuM1420 GND1 7 TOP VIEW (Not to Scale) VDD1 8 23 GNDC 22 VDDC 21 VOC VIA 9 20 GNDC VIB 10 19 NC VIC 11 18 NC VID 12 17 VDDD ED DISABLE 13 GND1 14 16 VOD 15 GNDD 06863-002 NC = NO CONNECT NOTES PIN 7 AND PIN 14 ARE INTERNALLY CONNECTED. CONNECTING BOTH TO GND1 IS RECOMMENDED. PIN 20 AND PIN 23 ARE INTERNALLY CONNECTED. CONNECTING BOTH TO GNDC IS RECOMMENDED. PIN 4, PIN 5, PIN 6, PIN 18, PIN 19, PIN 24, AND PIN 25 ARE FLOATING AND SHOULD BE LEFT UNCONNECTED. Figure 2. Pin Configuration Table 8. Pin Function Descriptions Pin No. 1 2 3 4 to 6, 18, 19, 24, 25 7, 14 8 9 10 11 12 13 Mnemonic VOA VDDA GNDA NC GND1 VDD1 VIA VIB VIC VID ED DISABLE 15 16 17 20, 23 21 22 26 27 28 GNDD VOD VDDD GNDC VOC VDDC GNDB VOB VDDB Description Output A. Output A Supply Voltage, 12 V to 18 V. Ground Reference for Output A. No Connection. Ground Reference for Input Logic Signals. Input Supply Voltage, 4.5 V to 5.5 V. Logic Input A. Logic Input B. Logic Input C. Logic Input D. Error Detection Disable. Disables the internal error detection function so that the logic outputs always match the logic inputs. Ground Reference for Output D. Output D. Output D Supply Voltage, 12 V to 18 V. Ground Reference for Output C. Output C. Output C Supply Voltage, 12 V to 18 V. Ground Reference for Output B. Output B. Output B Supply Voltage, 12 V to 18 V. Rev. A | Page 7 of 12 ADuM1420 TYPICAL PERFORMANCE CHARACTERISTICS 115 14 114 PROPAGATIONAL DELAY (ns) IDD1 8 6 4 2 0 4 DATA RATE (MBd) 10 111 110 109 108 106 18 114 16 113 PROPAGATION DELAY (ns) 14 12 10 8 6 4 10 109 115 110 105 0 20 40 60 TEMPERATURE (°C) 80 100 120 06863-005 PROPAGATION DELAY (ns) 120 –20 CHA RISE CHB RISE CHC RISE CHD RISE CHA FALL CHB FALL CHC FALL CHD FALL 5.0 INPUT SUPPLY VOLTAGE (V) 5.5 Figure 7. Typical Propagation Delay Variation with Input Supply Voltage (Output Supply Voltage = 15.0 V) Figure 4. Typical Output Supply Current Variation with Data Rate 100 –40 18 110 107 4.5 06863-004 4 DATA RATE (Mbps) 15 OUTPUT SUPPLY VOLTAGE (V) 111 2 0 12 112 108 0 CHA RISE CHB RISE CHC RISE CHD RISE CHA FALL CHB FALL CHC FALL CHD FALL Figure 6. Typical Propagation Delay Variation with Output Supply Voltage (Input Supply Voltage = 5.0 V) Figure 3. Typical Input Supply Current Variation with Data Rate OUTPUT CURRENT (mA) 112 107 06863-003 0 113 06863-007 CURRENT (mA) 10 06863-006 12 Figure 5. Typical Propagation Delay Variation with Temperature Rev. A | Page 8 of 12 ADuM1420 APPLICATION INFORMATION The sinusoidal component (at a given frequency) is given by COMMON-MODE TRANSIENT IMMUNITY VCM, sinusoidal = V0sin(2πft) In general, common-mode transients consist of linear and sinusoidal components. The linear component of a commonmode transient is given by where: V0 is the magnitude of the sinusoidal. f is the frequency of the sinusoidal. VCM, linear = (ΔV/Δt) t where ΔV/Δt is the slope of the transient shown in Figure 8 and Figure 9. 15V 5V VDD1 GND1 15V VDDA AND VDDB 15V ΔV Δt VDDA AND VDDB GNDA AND GNDB GNDA AND GND B ΔV Δt 5V 15V 06863-008 VDD1 GND1 Figure 8. Common-Mode Transient Immunity Waveforms, Input to Output The transient magnitude of the sinusoidal component is given by dVCM/dt = 2πf V0 The ability of the ADuM1420 to operate correctly in the presence of sinusoidal transients is characterized by the data in Figure 11 and Figure 12. The data is based on design simulation and is the maximum sinusoidal transient magnitude (2πf V0) that the ADuM1420 can tolerate without an operational error. Values for immunity against sinusoidal transients are not included in Table 5 because measurements to obtain such values have not been possible. 300 VDDA /VDDB 15V GNDA/GNDB GNDB/GNDA ΔV Δt VDDB /VDDA ΔV Δt 15V 15V 06863-009 GNDA/GNDB GNDA/GNDB Figure 9. Common-Mode Transient Immunity Waveforms Between Outputs The transient of the linear component is given by TRANSIENT IMMUNITY (kV/µs) 15V VDDA /VDDB 250 15V VDDB /VDDA BEST-CASE PROCESS VARIATION 200 150 100 50 dVCM/dt = ΔV/Δt 400 BEST-CASE PROCESS VARIATION 300 250 WORST-CASE PROCESS VARIATION 0 250 500 750 1000 1250 FREQUENCY (MHz) 1500 1750 2000 Figure 11. Transient Immunity (Sinusoidal Transients), 27°C Ambient Temperature 250 200 BEST-CASE PROCESS VARIATION 150 100 50 200 100 WORST-CASE PROCESS VARIATION 250 500 750 1000 1250 FREQUENCY (MHz) 1500 1750 Figure 12. Transient Immunity (Sinusoidal Transients), 100°C Ambient Temperature 50 0 –40 WORST-CASE PROCESS VARIATION 0 –20 0 20 40 TEMPERATURE (°C) 60 80 100 Figure 10. Transient Immunity (Linear Transients) vs. Temperature Rev. A | Page 9 of 12 2000 06863-012 0 150 06863-010 TRANSIENT IMMUNITY (kV/µs) 350 0 TRANSIENT IMMUNITY (kV/µs) The ability of the ADuM1420 to operate correctly in the presence of linear transients is characterized by the data in Figure 10. The data is based on design simulation and is the maximum linear transient magnitude that the ADuM1420 can tolerate without an operational error. This data shows a higher level of robustness than what is shown in Table 5 because the transient immunity values obtained in Table 5 use measured data and apply allowances for measurement error and margin. 06863-011 15V ADuM1420 POWER-UP/POWER-DOWN CONSIDERATIONS Given that the ADuM1420 has separate supplies on either side of the isolation barrier for each channel, the power-up/powerdown characteristics relative to each supply voltage need to be considered individually. As shown in Table 7, when VDD1 input power is off, the ADuM1420 outputs take on a default low logic state. As the VDD1 supply is increased/decreased, the output of each channel transitions from/to a logic low to/from the state matching its respective input (see Figure 13 and Figure 14). OUTPUT DATA When VDD1 crosses the threshold for activating the refresh function (approximately 2.5 V), there can be a delay of up to 2 μs before the output is updated to the correct state, depending on the timing of the next refresh pulse. When VDD1 is reduced from an on state to below the 2.0 V threshold, there can be a delay of up to 5 μs before the output takes on its default low state. In addition, during power-up/power-down, there is a range of VDD1 values within which erroneous outputs can occur if the input data either is a logic high or is in transition between logic states. This range is between 2.5 V and 2.7 V. The recommended practice is to set all the input logic levels to low during power-up/ power-down. VDD1 06863-013 2.5 (TYP) Figure 13. VDD1 Power-Up/Power-Down Characteristics, Input Data = High OUTPUT DATA 06863-014 VDD1 Figure 14. VDD1 Power-Up/Power-Down Characteristics, Input Data = Low Rev. A | Page 10 of 12 ADuM1420 OUTLINE DIMENSIONS 18.10 (0.7126) 17.70 (0.6969) 15 28 7.60 (0.2992) 7.40 (0.2913) 14 2.65 (0.1043) 2.35 (0.0925) 0.30 (0.0118) 0.10 (0.0039) COPLANARITY 0.10 10.65 (0.4193) 10.00 (0.3937) 1.27 (0.0500) BSC 0.51 (0.0201) 0.31 (0.0122) SEATING PLANE 0.75 (0.0295) 0.25 (0.0098) 45° 8° 0° 1.27 (0.0500) 0.40 (0.0157) 0.33 (0.0130) 0.20 (0.0079) COMPLIANT TO JEDEC STANDARDS MS-013-AE CONTROLLING DIMENSIONS ARE IN MILLIMETERS; INCH DIMENSIONS (IN PARENTHESES) ARE ROUNDED-OFF MILLIMETER EQUIVALENTS FOR REFERENCE ONLY AND ARE NOT APPROPRIATE FOR USE IN DESIGN. 060706-A 1 Figure 15. 28-Lead Standard Small Outline Package [SOIC_W] Wide Body (RW-28) Dimensions shown in millimeters and (inches) ORDERING GUIDE Model ADuM1420BRWZ 1 ADuM1420BRWZ-RL1 1 No. of Channels 4 4 Output Peak Current (A) 0.1 0.1 Output Voltage (V) 15 15 Temperature Range −40°C to +105°C −40°C to +105°C Z = RoHS Compliant Part. Rev. A | Page 11 of 12 Package Description 28-Lead SOIC_W 28-Lead SOIC_W, 13-Inch Tape and Reel Option (1,000 Units) Package Option RW-28 RW-28 ADuM1420 NOTES ©2008 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D06863–0–2/08(A) Rev. A | Page 12 of 12