PD-94690B AMR28XXD SERIES 28V Input, Dual Output HYBRID - HIGH RELIABILITY RADIATION TOLERANT DC/DC CONVERTER Description The AMR28XXD series of DC/DC converter modules has been specifically designed for operation in moderate radiation environments supplementing the higher radiation performance available in the International Rectifier ART2815T converter series. Environments presented to space vehicles operating in low earth orbits, launch boosters, orbiting space stations and similar applications requiring a low power, high performance converter with moderate radiation hardness performance will be optimally served by the AMR28XXD series. The physical configuration of the AMR28XXD series permits mounting directly to a heat conduction surface without the necessity of signal leads penetrating the heat sink surface. This package configuration permits greater independence in mounting and more mechanical security than traditional packages. International Rectifier’s rugged ceramic seal pins are used exclusively in the package thereby assuring long term hermeticity. The AMR28XXD has been designed for high density using chip and wire hybrid technology that complies with class H requirement of MIL-PRF-38534. 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. Applicable generic lot qualification test data including radiation performance can be made available on request. Variations to the standard screening can be accommodated. Consult IR Santa Clara for special requirements. www.irf.com AMR Features n n n n n n n n n n n n n 30 Watts Output Power Available in ± 5, ±12 and ±15 Volt Outputs 16 - 40 VDC Input Range (28 VDC Nominal) Total Ionizing Dose > 25KRads (Si) 2 SEE Hardened to LET up to 60 MeV.cm /mg -55°C to +125°C Operating Range Indefinite Short Circuit Protection External Synchronization Shutdown from External Signal Flexible Mounting Fully Isolated - Input to Output and to Case Complimentary EMI Filter Available Electrical Performance Similar to ATR28XXD Series 1 09/15/08 AMR28XXD Series Specifications Absolute Maxim um Ratings Input Voltage range Recom mended Operating Conditions -0.5V to +50VD C (Continuous), Input Voltage range +16V to +40VD C 80V (100ms) Output Power Less than or equal to 30W Soldering temperature 300°C for 10 seconds Operating case temperature -55°C to +125°C Storage case temperature -65°C to +135°C Static Characteristics -55°C ≤ TCASE ≤ +125°C, VIN=28 V DC ±5%, CL=0, unless otherwise specified. Group A Subgroups Parameter Test Conditions Input Voltage Iout=0 Output Voltage Output Current AMR2805D AMR2812D AMR2815D 1 1 1 AMR2805D AMR2812D AMR2815D 2, 3 2, 3 2, 3 AMR2805D AMR2812D AMR2815D 1, 2, 3 1, 2, 3 1, 2, 3 AMR2805D AMR2812D AMR2815D 1, 2, 3 1, 2, 3 1, 2, 3 1, 2 Nom Max Unit 16 28 40 V ±4.95 ±5.00 ±5.05 ±11.88 ±12.00 ±12.12 ±14.85 ±15.00 ±15.15 V ±4.90 ±11.70 ±14.70 ±5.10 ±12.30 ±15.30 600 250 200 5400 2250 1800 mA 30 30 30 W 60 85 85 mVPP Vin = 16, 28, 40 Volts 100% load Output Power Output Ripple Voltage Min 3 AMR2805D AMR2812D AMR2815D Output Voltage Regulation 1, 2, 3 1, 2, 3 1, 2, 3 Vin = 16, 28, 40 Volts BW = 20 Hz to 2 MHz 4 Line AMR2805D AMR2812D AMR2815D 1, 2, 3 1, 2, 3 1, 2, 3 Load AMR2805D AMR2812D AMR2815D 1, 2, 3 1, 2, 3 1, 2, 3 Vin = 16, 28, 40 Volts Iout = 0, 50%, and 100% load ±10 ±30 ±40 ±30 ±75 ±75 ±10 ±50 ±50 ±50 ±120 ±150 mV For Notes to Specifications, refer to page 5 2 www.irf.com AMR28XXD Series Static Characteristics (Continued) -55°C ≤ TCASE ≤ +125°C, VIN=28 VDC ±5%, CL=0,unless otherwise pecified. Group A Parameter Cross Regulation Input Current No Load Inhibit Input Ripple Current Efficiency Subgroups 5 Min Nom Max Unit 10 5.0 5.0 % 10% TO 90% Load change AMR2805D AMR2812D AMR2815D 1, 2, 3 1, 2, 3 1, 2, 3 AMR2805D AMR2812D AMR2815D 1, 2, 3 1, 2, 3 1, 2, 3 AMR2805D AMR2812D AMR2815D 1, 2, 3 1, 2, 3 1, 2, 3 3, 4 1, 2, 3 4 Iout=0, Inhibit =open 20 20 20 70 75 100 8.0 8.0 8.0 15 18 18 mA Inhibit shorted to input return Vin = 16, 28, 40 Volts, 100% load, BW = 20 Hz to 2 MHz 50 mAPP 100% load AMR2805D AMR2812D AMR2815D 1 1 1 76 80 79 AMR2805D AMR2812D AMR2815D 2, 3 2, 3 2, 3 72 75 74 Isolation Capacitive Load Test Conditions 6, 7 1 Input to output or any pin to case (except case ground pin) at 500Vdc 4 No effect on dc performance 100 Short Circuit Power Dissipation 1, 2, 3 Switching Frequency 4 4, 5, 6 100% load 500 Sync frequency range 4, 5, 6 100% load 500 MIL-HDBK-217F, SF@ Tc=35°C 800 MTBF Weight % MΩ 550 200 µF 9.0 W 600 KHz 700 KHz Khrs 68 g For Notes to Specifications, refer to page 5 www.irf.com 3 AMR28XXD Series Dynamic Characteristics Parameter Output Response To Step 4, 9 Transient Load Changes AMR2805D AMR2812D AMR2815D -55°C ≤ TCASE ≤ +125°C, VIN=28 V DC ±5%, CL=0, unless otherwise specified. Group A Subgroups Test Conditions Min Nom Max Unit 4, 5, 6 4, 5, 6 4, 5, 6 AMR2805D AMR2812D AMR2815D 4, 5, 6 4, 5, 6 4, 5, 6 Recovery Time, Step Transient 4, 9, 10 Load Changes AMR2805D AMR2812D AMR2815D 4, 5, 6 4, 5, 6 4, 5, 6 AMR2805D AMR2812D AMR2815D 4, 5, 6 4, 5, 6 4, 5, 6 AMR2805D AMR2812D AMR2815D 4, 5, 6 4, 5, 6 4, 5, 6 Output Response Transient Step 4, 7, 11 Line Changes AMR2805D AMR2812D AMR2815D 4, 5, 6 4, 5, 6 4, 5, 6 Recovery Time Transient Step Line 4, 7, 10, 11 Changes AMR2805D AMR2812D AMR2815D 4, 5, 6 4, 5, 6 4, 5, 6 Turn On Overshoot Turn On Delay Ù 100% Load step 50% Load step 0% Ù 50% -400 -400 -400 +400 +400 +400 -400 -800 -800 +400 +800 +800 Ù 100% Load step 50% Load step 0% => 50% Load step 50% => 0% Input step from/to 16 to 40Vdc, 100% load Input step from/to 16 to 40Vdc, 100% load -500 -1200 -1500 mV pk 70 70 70 µs 500 500 500 µs 5 5 5 ms +500 +1200 +1500 mV pk 10 10 10 ms 450 600 750 mV pk 25 25 25 ms 25 25 25 ms 4 AMR2805D AMR2812D AMR2815D 4, 5, 6 4, 5, 6 4, 5, 6 0% load to 100% load AMR2805D AMR2812D AMR2815D 4, 5, 6 4, 5, 6 4, 5, 6 0% load to 100% load 4, 12 Short Circuit Recovery 7 AMR2805D AMR2812D AMR2815D 4, 5, 6 4, 5, 6 4, 5, 6 For Notes to Specifications, refer to page 5 4 www.irf.com AMR28XXD Series Notes to Specifications 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. Parameter guaranteed by line and load regulation tests. Up to 90 percent of full power is available from either output provided the total output does not exceed 30 watts. Bandwidth guaranteed by design, Tested for 20 Hz to 2 MHz. Load current split equally between +VOUT and –VOUT. 3 watt load on output under test. 3 watt to 27 watt load change on other output. 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, Parameters shall be guaranteed to the limit specified in Electrical Specifications. Load step transition time between 2 and 10 microseconds. Recovery time is measured from initiation of the transient to where Vout has returned to within ±1% of Vout at 50% load. Input step transient time between 2 and 10 microseconds. 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 while power is applied to the input. Block Diagram EMI Filter 1 +Input Under-Voltage Detector 3 Enable Primary Housekeeping Supply 8 +Output 7 Output Return 6 -Output 5 Case 10 Sync Input Drive Pulse Width FB Modulator CS Error Amp & Ref Input Return 2 Application Information Inhibit Function (Enable) Connecting the inhibit input to input common 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 400 µA of current. The open circuit voltage of the inhibit input is 10 ±1.0 VDC. EMI Filter An optional EMI filter is available (AFH461) that will reduce the input ripple current to levels below the limits imposed by MIL-STD-461 CE03. www.irf.com Device Synchronization When multiple DC/DC converters are utilized in a single system, significant low frequency noise may be generated due to a small difference in the switching frequency of the converters (beat frequency noise). Because of the low frequency nature of this noise (typically less than 10 KHz), it is difficult to filter out and may interfere with proper operation of sensitive systems (communication, radar or telemetry). International Rectifier provides synchronization of multiple AMR type converters to match switching frequency of the converter to the frequency of the system clock, thus eliminating this type of noise. 5 AMR28XXD Series Mechanical Outline 0.220 Ø 0.125 3 Places R 0.15 Typ 0.050 2 9 3 8 1 10 0.040 D x 0.26 L Pins 1.600 2.440 2.74 Ref 2.14 1.200 7 0.800 0.400 6 5 0.420 0.150 Typ 1.230 0.410 Max 1.53 Tolerance unless otherwise specified: x.xx ±0.010 x.xxx ±0.005 Pin Designation Pin # Designation 1 + Input 2 Input Return 3 Enable 4 Blank 5 Case Ground 6 - Output 7 Output Return 8 + Output 9 NC 10 Sync Input Radiation Specification Parameter Condition Min Typ Max Unit Total Ionizing Dose MIL-STD-883, Method 1019.4 Operating bias applied during exposure 25 - - KRads (Si) Heavy Ion (Single event effects) BNL Dual Van de Graf Generator 60 - - MeV•cm /mg 2 International Rectifier currently does not have a DSCC certified Radiation Hardness Assurance Program. 6 www.irf.com AMR28XXD Series Device Screening Requirement MIL-STD-883 Method Temperature Range No Suffix d CH d -55°C to +125°C -55°C to +125°C EM -55°C to +85°C Element Evaluation MIL-PRF-38534 Class H Class H N/A Non-Destructive Bond Pull 2023 N/A N/A N/A Internal Visual 2017 Yes Yes c Temperature Cycle 1010 Cond C Cond C Cond C Constant Acceleration 2001, Y1 Axis 3000 Gs 3000 Gs 3000 Gs PIND 2020 Cond A Cond A N/A 320 hrs @ 125°C 320 hrs @ 125°C 48 hrs @ 125°C ( 2 x 160hrs ) ( 2 x 160hrs ) Burn-In 1015 Final Electrical MIL-PRF-38534 -55°C, +25°C, -55°C, +25°C, -55°C, +25°C, ( Group A ) & Specification +125°C +125°C +85°C PDA MIL-PRF-38534 2% 2% N/A Seal, Fine and Gross 1014 Cond A, C Cond A, C Cond A Radiographic 2012 Yes Yes N/A External Visual 2009 Yes Yes c Notes: Best commercial practice. Device with ‘/CH’ suffix is a DSCC class H compliant without radiation performance. No suffix is a radiation rated device but not available as a DSCC qualified SMD per MIL-PRF-38534. International Rectifier currently does not have a DSCC certified Radiation Hardness Assurance Program. Part Numbering AMR 28 15 D /EM Model Input Voltage 28 = 28V Output Voltage 03R3 = 3.3V, 05 = 5V, 12 = 12V, 15 = 15V Screening Level (Please refer to Screening Table) No Suffix, CH, EM Output S = Single D = Dual T = Triple 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. 09/2008 www.irf.com 7