PD-94691B AMR28XXS SERIES 28V Input, Single Output HYBRID - HIGH RELIABILITY RADIATION TOLERANT DC/DC CONVERTER Description The AMR28XXS 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 AMR28XXS Series. The physical configuration of the AMR28XXS 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 secure mechanical attachment than traditional radially leaded packages. International Rectifier’s rugged ceramic seal pins are used exclusively in the package thereby assuring long term hermeticity. AMR Features n n n n n n n n n n n n n 30 Watts Output Power Available in 3.3, 5, 12 and 15 Volt Outputs 18 - 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 ATR28XXS Series n Standard Microcircuit Drawings Available The AMR28XXS has been designed for high density using chip and wire hybrid technology that complies with the class H requirements 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. Consult IR Santa Clara for special requirements. www.irf.com 1 09/15/08 AMR28XXS 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 VDC ±5%, CL=0, unless otherwise specified. Group A Subgroups Parameter Test Conditions Input Voltage Nom Max Unit 16 28 40 V 3.30 5.00 12.00 15.00 3.35 5.05 12.12 15.15 V Iout=0 Output Voltage Output Current Min AMR2803R3S AMR2805S AMR2812S AMR2815S 1 1 1 1 3.25 4.95 11.88 14.85 AMR2803R3S AMR2805S AMR2812S AMR2815S 2, 3 2, 3 2, 3 2, 3 3.20 4.90 11.70 14.60 1 AMR2803R3S AMR2805S AMR2812S AMR2815S 1, 1, 1, 1, AMR2803R3S All Others 1, 2, 3 1, 2, 3 Output Power 2, 2, 2, 2, 3 3 3 3 2 Output Ripple Voltage AMR2803R3S AMR2805S AMR2812S AMR2815S Output Voltage Regulation 1, 1, 1, 1, 2, 2, 2, 2, 3 3 3 3 3.40 5.10 12.30 15.40 Vin = 18, 28, 40 Volts 7500 6000 2500 2000 100% load 25 30 Vin = 18, 28, 40 Volts BW = 20 Hz to 2 MHz 60 60 60 75 mA W mVPP 3 Line AMR2803R3S AMR2805S AMR2812S AMR2815S 1, 1, 1, 1, 2, 2, 2, 2, 3 3 3 3 Load AMR2803R3S AMR2805S AMR2812S AMR2815S 1, 1, 1, 1, 2, 2, 2, 2, 3 3 3 3 Vin = 18, 28, 40 Volts Iout = 0, 50%, and 100% load ±10 ±10 ±30 ±40 ±30 ±30 ±60 ±75 ±10 ±10 ±50 ±50 ±50 ±50 ±120 ±150 mV For Notes to Specifications, refer to page 4 2 www.irf.com AMR28XXS Series Static Characteristics (Continued) -55°C ≤ TCASE ≤ +125°C, VIN=28 VDC ±5%, CL=0, unless otherwise specified. Group A Subgroups Parameter Input Current No Load AMR2803R3S AMR2805S AMR2812S AMR2815S 1, 2, 3 1, 2, 3 1, 2, 3 1, 2, 3 Iout=0, Inhibit =open All 1, 2, 3 Inhibit shorted to input return 1, 2, 3 Vin = 16, 28, 40 Volts, 100% load, BW = 20 Hz to 2 MHz Inhibited Input Ripple Current 2 Min Nom Max 20 20 20 20 50 50 75 100 8.0 18 50 Unit mA mAPP 100% load Efficiency AMR2803R3S AMR2805S AMR2812S AMR2815S 1 1 1 1 74 76 80 79 AMR2803R3S AMR2805S AMR2812S AMR2815S 2, 3 2, 3 2, 3 2, 3 70 72 75 75 Isolation Capacitive Load Test Conditions 4, 5 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, 5, 6 100% load 500 Sync Frequency Range 4, 5, 6 100% load 500 MIL-HDBK-217F, N2 SF @ Tc = 35°C 940 MTBF Weight % MΩ 550 500 µF 19 W 600 KHz 700 KHz Khrs 68 g For Notes to Specifications, refer to page 4 www.irf.com 3 AMR28XXS Series Dynamic Characteristics -55°C ≤ TCASE ≤ +125°C, VIN=28 V DC ±5%, C L=0, unless otherwise specified. Group A Subgroups Parameter Output Response To Step 7 Transient Load Changes AMR2803R3S AMR2805S AMR2812S AMR2815S AMR2803R3S AMR2805S AMR2812S AMR2815S 4, 5, 6 4, 5, 6 4, 5, 6 4, 5, 6 4, 5, 6 4, 5, 6 Test Conditions Ù 100% Load step 50% Load step 8% Ù 50% Output Response Transient Step 5, 9 Line Changes AMR2803R3S AMR2805S AMR2812S AMR2815S 4, 5, 6 4, 5, 6 4, 5, 6 4, 5, 6 Recovery Time Transient Step 5, 8, 9 Line Changes 4, 5, 6 Turn On Overshoot AMR2803R3S AMR2805S AMR2812S AMR2815S 4, 5, 6 4, 5, 6 4, 5, 6 4, 5, 6 0% load to 100% load 4, 5, 6 0% load to 100% load 10 Short Circuit Recovery 5, 10 4, 5, 6 Input step from/to 18 to 40Vdc, 100% load Input step from/to 18 to 40Vdc, 100% load Max +500 +500 +800 +1000 -500 -500 -1000 -1000 +500 +500 +1000 +1000 Ù Ù 4, 5, 6 Nom -500 -500 -800 -1000 Load step 50% 100% or Load step 8% 50% Recovery Time, Step Transient 7, 8 Load Changes Turn On Delay Min 200 -500 -500 -1200 -1500 +500 +500 +1200 +1500 10 500 500 800 1000 Unit mVpk µs mVpk ms mVpk 25 ms 25 ms Notes to Specifications 1 2 3 4 5 6 7 8 9 Parameter guaranteed by line and load regulation tests. Bandwidth guaranteed by design. Tested for 20 KHz to 2.0 MHz. 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. Parameters shall be guaranteed to the limit specified in Electrical Specifications. Load step transition time between 2.0 and 10 microseconds. Recovery time is measured from the initiation of the transient to where VOUT has returned to within ±1 % of VOUT at 50 percent load. Input step transition time between 2.0 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. 4 www.irf.com AMR28XXS Series Block Diagram EMI Filter 1 +Input 8 +Output Under-Voltage Detector 7 Output Return Primary Housekeeping Supply 3 Enable Drive Pulse Width Modulator FB 10 Sync Input Error Amp & Ref CS 9 +Sense 6 -Sense Input Return 2 Application Information Inhibit Function (Enable) Device Synchronization 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. 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. 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. MTBF vs Case Temperature for AMR2803R3S 1.60E+06 1.40E+06 MTBF 1.20E+06 1.00E+06 8.00E+05 6.00E+05 4.00E+05 2.00E+05 0.00E+00 0 20 40 60 80 100 120 Case Temperature, deg C www.irf.com 5 AMR28XXS 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 5 6 0.400 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 Sense Return 7 Output Return 8 + Output 9 + Sense 10 Sync Input Radiation Specification Parameter Conditions Min Total Ionizing Dose MIL-STD-883, Method 1019.4 Operating bias applied during exposure 30 Heavy Ion (Single event effects) BNL Dual Van de Graf Generator 60 Typ Max Unit KRads (Si) 2 MeV•cm /mg International Rectifier currently does not have a DSCC certified Radiation Hardness Assurance Program. 6 www.irf.com AMR28XXS Series Device Screening Requirement MIL-STD-883 Method Temperature Range No Suffix d CH d EM -55°C to +125°C -55°C to +125°C Element Evaluation MIL-PRF-38534 Class H Class H -55°C to +85°C 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 Burn-In 1015 ( 2 x 160hrs ) ( 2 x 160hrs ) 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 05 S /EM Standard Microcircuit Drawing Equivalence Table Standard Microcircuit Drawing Number IR Standard Part Number 5962-04245 AMR2803R3S 5962-04246 AMR2805S 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