PD - 94549B ATR28XXS SERIES 28V Input, Single Output HYBRID-HIGH RELIABILITY DC/DC CONVERTER Description The ATR28XXS Series of DC/DC converters feature high power density and an extended temperature range for use in military and industrial applications. Designed to MIL-STD-704D input requirements, these devices have nominal 28VDC inputs with 3.3V, 5V, 12V and 15V single outputs to satisfy a wide range of requirements. The circuit design incorporates a pulse width modulated single forward topology operating in the feed-forward mode at a nominal switching frequency of 550KHz. Input to output isolation is achieved through the use of transformers in the forward and feedback circuits. The advanced feedback design provides fast loop response for superior line and load transient characteristics and offers greater reliability and radiation tolerance than devices incorporating optical feedback circuits. Three standard temperature grades are offered with screening options. Refer to Part Number section. These devices can be provided in a standard plug-in package for PC mounting or in a flanged package for more severe environments. Manufactured in a facility fully qualified to MIL-PRF38534, these converters are fabricated utilizing DSCC qualified processes. For available screening options, refer to device screening table in the data sheet. Variations in electrical, mechanical and screening can be accommodated. ATR Features 16V to 40VDC Input Range (28VDC Nominal) 3.3V, 5V, 12V and 15V Outputs Available Indefinite Short Circuit and Overload Protection 3 Up to 35W/in Power Density 30W Output Power Models Fast Loop Response for Superior Transient Characteristics Operating Temperature Range from -55°C to +125°C Popular Industry Standard Pin-Out Resistance Seam Welded Case for Superior Long Term Hermeticity Ceramic Feed-thru Pins External Synchronization Efficiencies up to 84% Shutdown from External Signal Military Screening Standard Microcircuit Drawings Available Extensive computer simulation using complex modeling enables rapid design modification to be provided. Contact IR Santa Clara with specific requirements. www.irf.com 1 01/15/07 ATR28XXS Series Specifications ATR2803R3S Absolute Maximum Ratings Input voltage -0.5V to +50VDC Soldering temperature 300°C for 10 seconds Operating case temperature -55°C to +125°C Storage case temperature -65°C to +135°C Table I. Electrical performance Characteristics Test Symbol Output voltage VOUT 1 IOUT VRIP 3 VRLINE Output current 2 Output ripple voltage Line regulation Load regulation 3 VRLOAD Input current IIN Input ripple current 2 IRIP Efficiency EFF Isolation ISO Capacitive load 4, 5 Power dissipation load fault Switching frequency Sync frequency range Output response to step 7 transient load changes Recovery time step 7, 8 transient load changes CL PD FS FSYNC VOTLOAD TTLOAD Conditions -55°C ≤ TC ≤ +125°C VIN = 28VDC ±5%, CL = 0 Unless otherwise specified IOUT = 0 VIN = 16, 28, and 40 VDC VIN = 16, 28, and 40 VDC B.W. = 20Hz to 2 MHz VIN = 16, 28, and 40 VDC IOUT = 0, 3000, and 6000mA VIN = 16,28, and 40 VDC IOUT = 0, 3000, and 6000mA IOUT = 0, inhibit (pin 2) Tied to input return (pin 10) IOUT = 0, inhibit (pin 2) = open IOUT =6000mA B.W. = 20Hz to 2 MHz IOUT =6000mA Input to output or any pin to case (except pin 8) at 500 VDC, TC =+25°C No effect on dc performance TC =+25°C 6 Overload, TC = +25°C Short Circuit IOUT = 7500mA IOUT = 7500mA Load step 50% to/from 100% Load step 50% to/from 100% Load step 50% to/from 100% Load step 50% to/from 100% Output response to transient 5, 9 step line changes VOTLINE Input step 16V to/from 40VDC, IOUT = 7500mA Group A Subgroups Device Types Limits Units Min Max 3.25 3.20 mA mV p-p 1 2,3 1,2,3 1,2,3 01 01 01 3.35 3.40 7500 60 1 01 ±20 mV 2,3 1,2,3 01 ±30 ±50 mV 1,2,3 01 18 mA 1,2,3 01 50 50 mA p-p 1 2,3 1 01 4 01 01 74 70 100 % MΩ 500 1 µF 12 01 1,2,3 4,5,6 4,5,6 4,5,6 4,5,6 4 5,6 4 5,6 4,5,6 V 01 01 01 01 01 W 500 500 -500 -500 9.0 600 700 +500 +500 100 200 100 200 ±500 KHz KHz mV pk µs mV pk For Notes to Specifications, refer to page 3 2 www.irf.com ATR28XXS Series ATR2803R3S Table I. Electrical performance Characteristics - continued Symbol Recovery time transient step 5, 8, 9 line changes Turn on overshoot 10 Turn on delay 5, 10 Load fault recovery TTLINE VTonOS TonD TrLF Conditions -55°C ≤ TC ≤ +125°C VIN = 28VDC ±5%, CL = 0 Unless otherwise specified Input step 16V to/from 40VDC, IOUT = 7500mA IOUT = 10% to 100% of Load IOUT =0 and 7500mA Group A Subgroups Device Types Units Limits Min Max 4,5,6 01 10 ms 4,5,6 4,5,6 4,5,6 01 01 01 350 25 25 mV pk ms ms Notes to Specifications 1 2 3 4 Parameter guaranteed by line and load regulation tests. Bandwidth guaranteed by design. Tested for 20KHz to 2.0MHz. Output voltage measured at load with remote sense leads connected across load. Capacitive load may be any value from 0 to the maximum limit without compromising dc performance. A capacitive load in excess of the maximum limit will not disturb loop stability but may interfere with the operation of the load fault detection circuitry, appearing as a short circuit during turn on. 5 Parameter shall be tested as part of design characterization and after design or process changes. There after parameters shall be guaranteed to the limits specified in table I. 6 An overload is that condition with a load in excess of the rated load but less than that necessary to trigger the short circuit protection and is the condition of maximum power dissipation. 7 Load step transition time between 2.0µs and 10µs. 8 Recovery time is measured from the initiation of the transient to where VOUT has returned to within ±1.0% of V OUT at 50% load. 9 Input step transition time between 2.0µs and 10µs. 10 Turn on delay time measurement is for either a step application of power at the input or the removal of a ground signal from the inhibit pin (pin 2) while power is applied to the input. www.irf.com 3 ATR28XXS Series Specifications ATR2805S Absolute Maximum Ratings Input voltage -0.5V to +50VDC Soldering temperature 300°C for 10 seconds Operating case temperature -55°C to +125°C Storage case temperature -65°C to +135°C Table II. Electrical performance Characteristics Test Symbol Output voltage VOUT 1 IOUT VRIP 3 VRLINE Output current 2 Output ripple voltage Line regulation Load regulation 3 VRLOAD Input current IIN 2 Input ripple current IRIP Efficiency EFF Isolation ISO Capacitive load 4, 5 Power dissipation load fault Switching frequency Sync frequency range Output response to step 7 transient load changes Recovery time step 7, 8 transient load changes CL PD FS FSYNC VOTLOAD TTLOAD Conditions -55°C ≤ TC ≤ +125°C VIN = 28VDC ±5%, CL = 0 Unless otherwise specified IOUT = 0 VIN = 16, 28, and 40 VDC VIN = 16, 28, and 40 VDC B.W. = 20Hz to 2 MHz VIN = 16, 28, and 40 VDC IOUT = 0, 3000, and 6000mA VIN = 16,28, and 40 VDC IOUT = 0, 3000, and 6000mA IOUT = 0, inhibit (pin 2) Tied to input return (pin 10) IOUT = 0, inhibit (pin 2) = open IOUT =6000mA B.W. = 20Hz to 2 MHz IOUT =6000mA Input to output or any pin to case (except pin 8) at 500 VDC, TC =+25°C No effect on dc performance TC =+25°C 6 Overload, TC = +25°C Short Circuit IOUT = 6000mA IOUT = 6000mA 3000mA to/from 6000mA 500mA to/from 3000mA 3000mA to/from 6000mA 500mA to/from 3000mA Output response to transient 5, 9 step line changes VOTLINE Input step 16V to/from 40VDC, IOUT = 6000mA Group A Subgroups Device Types 01 Limits Units Min Max 4.95 4.90 mA mV p-p 1 2,3 1,2,3 1,2,3 01 01 5.05 5.10 6000 60 1 01 ±20 mV 2,3 1,2,3 01 ±30 ±50 mV 1,2,3 01 18 mA 1,2,3 01 50 50 mA p-p 1 2,3 1 01 01 4 01 76 72 100 % MΩ 500 1 µF 12 01 1,2,3 4,5,6 4,5,6 4,5,6 4,5,6 4 5,6 4 5,6 4,5,6 V 01 01 01 01 01 W 500 500 -500 -500 9.0 600 700 +500 +500 100 200 100 200 ±500 KHz KHz mV pk µs mV pk For Notes to Specifications, refer to page 5 4 www.irf.com ATR28XXS Series ATR2805S Table II. Electrical performance Characteristics - continued Symbol Recovery time transient step 5, 8, 9 line changes Turn on overshoot 10 Turn on delay 5, 10 Load fault recovery TTLINE VTonOS TonD TrLF Conditions -55°C ≤ TC ≤ +125°C VIN = 28VDC ±5%, CL = 0 Unless otherwise specified Input step 16V to/from 40VDC, IOUT = 6000mA IOUT =0 and 6000mA IOUT =0 and 6000mA Limits Group A Subgroups Device Types 4,5,6 01 10 ms 4,5,6 4,5,6 4,5,6 01 01 01 500 25 25 mV pk ms ms Min Units Max Notes to Specifications 1 2 3 4 Parameter guaranteed by line and load regulation tests. Bandwidth guaranteed by design. Tested for 20KHz to 2.0MHz. Output voltage measured at load with remote sense leads connected across load. Capacitive load may be any value from 0 to the maximum limit without compromising dc performance. A capacitive load in excess of the maximum limit will not disturb loop stability but may interfere with the operation of the load fault detection circuitry, appearing as a short circuit during turn on. 5 Parameter shall be tested as part of design characterization and after design or process changes. There after parameters shall be guaranteed to the limits specified in table II. 6 An overload is that condition with a load in excess of the rated load but less than that necessary to trigger the short circuit protection and is the condition of maximum power dissipation. 7 Load step transition time between 2.0µs and 10µs. 8 Recovery time is measured from the initiation of the transient to where VOUT has returned to within ±1.0% of V OUT at 50% load. 9 Input step transition time between 2.0µs and 10µs. 10 Turn on delay time measurement is for either a step application of power at the input or the removal of a ground signal from the inhibit pin (pin 2) while power is applied to the input. www.irf.com 5 ATR28XXS Series Specifications ATR2812S Absolute Maximum Ratings Input voltage -0.5V to +50VDC Soldering temperature 300°C for 10 seconds Operating case temperature -55°C to +125°C Storage case temperature -65°C to +135°C Table III. Electrical performance Characteristics Test Symbol Output voltage VOUT 1 Output current Output ripple voltage Line regulation 2 3 Load regulation IOUT VRIP VRLINE 3 VRLOAD Input current IIN Input ripple current 2 IRIP Efficiency E FF Isolation ISO Capacitive load 4, 5 Power dissipation load fault Switching frequency Sync frequency range Output response to step 7 transient load changes Recovery time step 7, 8 transient load changes CL PD FS FSYNC VOTLOAD TTLOAD Conditions -55°C ≤ TC ≤ +125°C VIN = 28VDC ±5%, CL = 0 Unless otherwise specified IOUT = 0 V IN = 16, 28, and 40 VDC V IN = 16, 28, and 40 VDC B.W. = 20Hz to 2 MHz V IN = 16, 28, and 40 VDC IOUT = 0, 1250, and 2500mA V IN = 16,28, and 40 VDC IOUT = 0, 1250, and 2500mA IOUT = 0, inhibit (pin 2) Tied to input return (pin 10) IOUT = 0, inhibit (pin 2) = open IOUT =2500mA B.W. = 20Hz to 2 MHz IOUT=2500mA Input to output or any pin To case (except pin 8) at 500 VDC, TC =+25°C No effect on dc performance TC =+25°C 6 Overload, TC = +25°C Short Circuit IOUT = 2500mA IOUT = 2500mA 1250mA to/from 2500mA 200mA to/from 1250mA 1250mA to/from 2500mA 200mA to/from 1250mA Output response to transient step line 5, 9 changes VOTLINE Input step 16V to/from 40VDC, IOUT = 2500mA Group A Subgroups Device Types 1 2,3 1,2,3 1,2,3 01 1 Units Limits Min Max 11.88 11.70 12.12 12.30 2500 60 01 01 ±30 01 ±60 ±60 2,3 1 01 ±120 18 2,3 1,2,3 01 1 2,3 1,2,3 01 4 01 1 1,2,3 4,5,6 4,5,6 4,5,6 4,5,6 4 5,6 4 5,6 4,5,6 01 80 75 100 01 01 mV mV MΩ 12 500 500 -800 -1000 mAp-p % 500 01 01 01 01 mA mVp-p mA 50 75 50 01 1 2,3 1 V 9.0 600 700 +800 +1000 100 200 100 200 ±1200 µF W KHz KHz mV pk µs mV pk For Notes to Specifications, refer to page 7 6 www.irf.com ATR28XXS Series Table III. Electrical performance Characteristics - continued Test Recovery time transient 5, 8, 9 step line changes Turn on overshoot 10 Turn on delay 5, 10 Load fault recovery Symbol TTLINE VTonOS TonD TrLF Conditions -55°C ≤ TC ≤ +125°C VIN = 28VDC ±5%, CL = 0 Unless otherwise specified Input step 16V to/from 40VDC, IOUT = 2500mA IOUT =0 and 2500mA IOUT =0 and 2500mA Group A Subgroups ATR2812S Limits Device Types Min Units Max 4,5,6 01 10 ms 4,5,6 4,5,6 4,5,6 01 01 01 800 25 25 mV pk ms ms Notes to Specifications 1 2 3 4 Parameter guaranteed by line and load regulation tests. Bandwidth guaranteed by design. Tested for 20KHz to 2.0MHz. Output voltage measured at load with remote sense leads connected across load. Capacitive load may be any value from 0 to the maximum limit without compromising dc performance. A capacitive load in excess of the maximum limit will not disturb loop stability but may interfere with the operation of the load fault detection circuitry, appearing as a short circuit during turn on. 5 Parameter shall be tested as part of design characterization and after design or process changes. There after parameters shall be guaranteed to the limits specified in table III. 6 An overload is that condition with a load in excess of the rated load but less than that necessary to trigger the short circuit protection and is the condition of maximum power dissipation. 7 Load step transition time between 2.0µs and 10µs. 8 Recovery time is measured from the initiation of the transient to where VOUT has returned to within ±1.0% of VOUT at 50% load. 9 Input step transition time between 2.0µs and 10µs. 10 Turn on delay time measurement is for either a step application of power at the input or the removal of a ground signal from the inhibit pin (pin 2) while power is applied to the input. www.irf.com 7 ATR28XXS Series Specifications ATR2815S Absolute Maximum Ratings Input voltage -0.5V to +50VDC Soldering temperature 300°C for 10 seconds Operating case temperature -55°C to +125°C Storage case temperature -65°C to +135°C Table IV. Electrical performance Characteristics Test Symbol Output voltage Output current VOUT 1 IOUT Output ripple voltage Line regulation 3 3 Load regulation VRLINE 3 VRLOAD Input current IIN Input ripple current Efficiency 2 IRIP 4 EFF Isolation Capacitive load VRIP ISO 4, 5 CL Power dissipation load fault PD 4 Switching frequency Sync frequency range Output response to step 7 transient load changes Recovery time step 7, 8 transient load changes FS F SYNC VO TLOAD TTLOAD Conditions -55°C ≤ TC ≤ +125°C V IN = 28VDC ±5%, CL = 0 Unless otherwise specified IOUT = 0 VIN = 16, 28, and 40 VDC each output. VIN = 16, 28, and 40 VDC B.W. = 20Hz to 2 MHz VIN = 16, 28, and 40 VDC IOUT = 0, 1250, and 2500mA VIN = 16,28, and 40 VDC IOUT = 0, 1250, and 2500mA IOUT = 0, inhibit (pin 2) Tied to input return (pin 10) IOUT = 0, Inhibit (pin 2) = open IOUT = 2500mA B.W. = 20Hz to 2 MHz IOUT = 2500mA Input to output or any pin to case (except pin 7) at 500 VDC, TC =+25°C No effect on dc performance, TC =+25°C. Total for both outputs 6 Overload, TC = +25°C Short Circuit IOUT = 2500mA IOUT = 2500mA 1000mA to/from 2000mA 167mA to/from 1000mA 1000mA to/from 2000mA 167mA to/from 1000mA Output response to transient step line 5, 9 changes VO TLINE Input step 16V to/from 40VDC, IOUT = 2000mA Group A Subgroups Device Types 1 2,3 1,2,3 01 1,2,3 1 Min Max 14.85 14.60 01 15.15 15.40 2000 mA 01 ±75 mVp-p ±35 01 ±75 ±75 2,3 1 01 2,3 1,2,3 1 2,3 1,2,3 Units Limits ±150 18 01 75 100 50 01 1 2,3 1 01 4 01 01 79 75 100 mV mA mAp-p MΩ µF 12 01 1,2,3 4,5,6 4,5,6 4,5,6 4,5,6 4 5,6 4 5,6 4,5,6 mV % 500 1 V 01 01 01 01 01 W 500 500 -1000 -1000 9.0 600 700 +1000 +1000 100 200 100 200 ±1500 KHz KHz mVp-k µs mVpk For Notes to Specifications, refer to page 9 8 www.irf.com ATR28XXS Series Table IV. Electrical performance Characteristics - continued Test Recovery time transient 5, 8, 9 step line changes Turn on overshoot 10 Turn on delay 5, 10 Load fault recovery Symbol TTLINE VTonOS TonD TrLF Conditions -55°C ≤ TC ≤ +125°C VIN = 28VDC ±5%, CL = 0 Unless otherwise specified Input step 16V to/from 40VDC, IOUT = 2500mA IOUT =0 and 2000mA IOUT =0 and 2000mA Group A Subgroups ATR2815S Device Types Limits Min Units Max 4,5,6 01 10 ms 4,5,6 4,5,6 4,5,6 01 01 01 1000 25 25 mVpk ms ms Notes to Specifications 1 2 3 4 5 6 7 8 9 10 Parameter guaranteed by line and load regulation tests. Bandwidth guaranteed by design. Tested for 20KHz to 2.0MHz. Output voltage measured at load with remote sense leads connected across load. Capacitive load may be any value from 0 to the maximum limit without compromising dc performance. A capacitive load in excess of the maximum limit will not disturb loop stability but may interfere with the operation of the load fault detection circuitry, appearing as a short circuit during turn on. Parameter shall be tested as part of design characterization and after design or process changes. There after parameters shall be guaranteed to the limits specified in table IV. An overload is that condition with a load in excess of the rated load but less than that necessary to trigger the short circuit protection and is condition of maximum power dissipation. Load step transition time between 2.0µs and 10µs. Recovery time is measured from the initiation of the transient to where VOUT has returned to within ±1.0% of VOUT at 50% load. Input step transition time between 2.0µs and 10µs. Turn on delay time measurement is for either a step application of power at the input or the removal of a ground signal from the inhibit pin (pin2) while power is applied to the input. www.irf.com 9 ATR28XXS Series +Input 1 Block Diagram EMI Filter 5 +Vout Inhibit Input 4 Primary Housekeeping Supply 2 Case Output Return 8 Drive Sync 9 Pulse Width FB Modulator CS 6 +Sense Error Amp & Ref 3 Sense Return Input Return 10 Application Information Thermal Management Inhibit Function Assuming that there is no forced air flow, the package temperature rise above ambient (∆T) may be calculated using the following expression: Connecting the inhibit input (Pin 2) to input common (Pin 10) will cause the converter to shut down. It is recommended that the inhibit pin be driven by an open collector device capable of sinking at least 400µA of current. The open circuit voltage of the inhibit input is 11.5 ±1.0VDC. EMI Filter An Optional EMI filter (AFC461)is available that will reduce the input ripple current to levels below the limits imposed by MIL-STD-461B CEO3. Output Voltage Adjustment The output voltage of the ATR2805S converter can be adjusted upward by connecting an appropriate resistor value between the Positive Output (Pin 5) and the Positive Sense (Pin 6) as shown in Table 1 below. Resistance Pin 5 to 6 (Ω) 109 240 400 600 857 1200 Output Voltage Increase (V) 0.1 0.2 0.3 0.4 0.5 0.6 Table1 Output adjustment resistor values for ATR2805S Device Synchronization Whenever multiple DC/DC converters are utilized in a single system, significant low frequency noise may be generated due to slight difference in the switching frequencies of the converters. Because of the low frequency nature of this noise (typically less than 10KHz), it is difficult to filter out and may interfere with proper operation of sensitive systems. International Rectifier permits synchronization of multiple ATR28XX converters to match switching frequency of the converter to the frequency of the system clock, thus eliminating this type of noise. 10 ∆T = 80 A –0.7 P 0.85 (°C) where A = the effective surface area in square inches (Including heat sink if used),P d = power dissipation in watts. The total surface area of the ATR package is 7.34 square inches. If a worse case full load efficiency of 76% is assumed, then the case temperature rise of an ATR2805S can be calculated as follows: ⎡ 1 ⎤ ⎡ 1 ⎤ − 1⎥ = 30 ⎢ − 1⎥ = 9.5W P = Pout ⎢ Eff 76 ⎣ ⎦ ⎣ ⎦ ∆T = 80 (7.34)-0.7 (9.5)0.85 = 134°C Hence, if T AMBIENT = +25°C, the DC/DC converter case temperature will be approximately 159°C if no heat sink or air flow is provided. To calculate the heat sink area required to maintain a specific case temperature rise, the above equation may be manipulated as follows: ⎡ ∆T ⎤ AHEATSINK = ⎢ 0. 85 ⎥ ⎢⎣ 80Pd ⎥⎦ −1.43 − APKG As an example, if a maximum case temperature rise of 50°C above ambient is required, then the required effective heat sink area is: ⎡ ⎤ 50 AHEATSINK = ⎢ 0.85 ⎥ ⎢⎣ 80(9.5 ) ⎥⎦ −1.43 − 7.34 = 22.9in 2 www.irf.com ATR28XXS Series Mechanical Outlines Flanged Ø 0.162 2 Holes Non-Flanged 0.050 0.800 6 10 8 7 4 5 4 X 0.400 =1.600 3 1.110 2.110 Max 2 2.550 1 2.880 Max 9 0.040 D X 0.26 L Pins 2.110 0.390 Max 0.390 Max Pin Designation Pin # Designation 1 + Input 2 Inhibit Input 3 Sense Return* 4 Output Return 5 + Output 6 + Sense* 7 NC 8 Case Ground 9 Sync. 10 Input Return * If neither remote sense nor voltage trim is used, connect Pin 3 to 4 and 5 to 6 or output voltage will increase by 1.2V. Standard Microcircuit Drawing Equivalence Table Standard Microcircuit Drawing Number 5962-94624 5962-94625 www.irf.com Vendor Cage Code 52467 52467 IR Standard Part Number ATR2805S ATR2812S 11 ATR28XXS Series Device Screening Requirement MIL-STD-883 Method Non-Destructive Bond Pull HB CH -20°C to +85°C -55°C to +125°C -55°C to +125°C -55°C to +125°C Temperature Range Element Evaluation ES No Suffix MIL-PRF-38534 N/A N/A N/A Class H 2023 N/A N/A N/A N/A Internal Visual 2017 Yes Yes Yes Temperature Cycle 1010 N/A Cond B Cond C Cond C Constant Acceleration 2001, Y1 Axis N/A 500 Gs 3000 Gs 3000 Gs PIND 2020 N/A N/A N/A N/A Burn-In 1015 N/A 48 hrs@hi temp Final Electrical MIL-PRF-38534 25°C 25°C ( Group A ) & Specification 160 hrs@125°C 160 hrs@125°C -55°C, +25°C, -55°C, +25°C, +125°C +125°C PDA MIL-PRF-38534 N/A N/A N/A 10% Seal, Fine and Gross 1014 Cond A Cond A, C Cond A, C Cond A, C Radiographic 2012 N/A N/A N/A N/A External Visual 2009 Yes Yes Yes Notes: Best commercial practice Sample tests at low and high temperatures -55°C to +105°C for AHE, ATO, ATW Part Numbering ATR 28 15 S F /CH Model Screening Level Input Voltage Nominal No Suffix, ES, HB, CH 28 = 28V Output Voltage 03R3 = 3.3V 05 = 5V 12 = 12V 15 = 15V (Please refer to Screening Table) Package Style F = Flange Blank = Non-Flanged Output S = Single WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245, Tel: (310) 252-7105 IR SANTA CLARA: 2270 Martin Av., Santa Clara, California 95050, Tel: (408) 727-0500 Visit us at www.irf.com for sales contact information. Data and specifications subject to change without notice. 01/2007 12 www.irf.com