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| PD-94687E AMA28XXS SERIES 28V Input, Single Output HYBRID - HIGH RELIABILITY RADIATION TOLERANT DC/DC CONVERTER Description The AMA28XXS 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 AMA28XXS Series. The physical configuration of the AMA28XXS 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 Rectifiers'srugged ceramic seal pins are used exclusively in the package thereby assuring long term hermeticity. The AMA28XXS 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. Variations to the standard screening can be accommodated. Consult IR Santa Clara for special requirements. AMA Features n n n n n n n n n n n 5.0 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 -55C to +125C Operating Range Indefinite Short Circuit Protection Flexible Mounting Fully Isolated - Input to Output and to Case Complimentary EMI Filter Available Electrical Performance Similar to ASA28XXS Series n Standard Microcircuit Drawings Available www.irf.com 1 07/08/09 AMA28XXS Series Specifications Absolute Maximum Ratings Input Voltage range Soldering temperature Storage case temperature 80V (100ms) 300C for 10 seconds -65C to +135C Recommended Operating Conditions +16V to +40VDC Less than or equal to 5W -55C to +125C Output Power Operating case temperature -0.5V to +50VDC (Continuous), Input Voltage range Static Characteristics Parameter Input Voltage Output Voltage AMA2805S AMA2812S AMA2815S AMA2805S AMA2812S AMA2815S Output Current 1 -55C TCASE +125C, VIN=28 VDC 5%, CL=0, unless otherwise specified. Group A Subgroups Test Conditions Min 16 Nom 28 Max 40 Unit V Iout = 0 1 1 1 2, 3 2, 3 2, 3 Vin = 16, 28, 40 Volts AMA2805S AMA2812S AMA2815S 1, 2, 3 1, 2, 3 1, 2, 3 Vin = 28 Volts, 100% load All Models 1, 2, 3 Vin = 16, 28, 40 Volts 100% Load BW = 20 Hz to 2.0 MHz 1000 417 333 mA 4.95 11.88 14.85 4.90 11.76 14.70 5.00 12.00 15.00 5.05 12.12 15.15 V 5.10 12.24 15.30 Output Power 1 5.0 W Output Ripple Voltage 2 AMA2805S AMA2812S AMA2815S Output voltage Regulation Line Load 1, 2, 3 1, 2, 3 1, 2, 3 200 200 200 mVPP 1, 2, 3 1, 2, 3 Vin = 16, 28, 40 Volts Iout = 0, 50%, and 100% load 10 10 50 50 mV For Notes to Specifications, refer to page 4 2 www.irf.com AMA28XXS Series Static Characteristics Parameter Input Current No Load Inhibit 2 (Continued) -55C TCASE +125C, VIN=28 VDC 5%, CL=0, unless otherwise specified. Group A Subgroups Test Conditions Vin = 28V, Iout = 0, Inhibit (pin 5) = open Inhibit (pin 5) shorted to input return (pin 7) Vin = 16, 28, 40 Volts, 100% load, BW = 20 Hz to 2 MHz 100% load Min Nom 20 8.0 Max 50 Unit 1, 2, 3 1, 2, 3 mA 12 Input Ripple Current 1, 2, 3 100 mAPP Efficiency AMA2805S AMA2812S AMA2815S AMA2805S AMA2812S AMA2815S Isolation 3, 4 1, 3 1, 3 1, 3 2 2 2 1 Input to output or any pin to case (except pin 8) at 500Vdc No effect on dc performance 66 71 71 66 68 68 100 % M Capacitive Load 4 AMA2805S AMA2812S AMA2815S Short Circuit Power Dissipation 1, 2, 3 500 100 100 4.0 MIL-HDBK-217F, SF @Tc=35C 700 32 F W Khrs g MTBF Weight For Notes to Specifications, refer to page 4 www.irf.com 3 AMA28XXS Series Dynamic Characteristics Parameter Short Circuit Recovery Switching Frequency Output Response To Step 8 Transient Load Changes 4 -55C TCASE +125C, VIN=28 VDC 5%, CL=0, unless otherwise specified. Group A Subgroups Test Conditions 0% load to 100% load 100% load Min Nom Max 25 Unit ms KHz 4, 5, 6 4, 5, 6 500 550 600 4, 5, 6 4, 5, 6 Load step 50%U 100% Load step 0% -450 -750 +450 +750 U 50% mVpk Recovery Time, Step Transient 5, 6 Load Changes AMA2805S AMA2812S AMA2815S AMA2805S AMA2812S AMA2815S Output Response Transient Step 4, 7 Line Changes AMA2805S AMA2812S AMA2815S Recovery Time Transient Step 4, 6, 7 Line Changes Turn On Overshoot 8 4, 5, 6 4, 5, 6 4, 5, 6 4, 5, 6 4, 5, 6 4, 5, 6 Load step 50%U 100% 300 100 100 2000 2000 2000 Load step 0% U 50% -550 -750 -750 s 4, 5, 6 4, 5, 6 4, 5, 6 4, 5, 6 Input step 16 100% load U 40Vdc, U 40Vdc, +550 +750 +750 1200 mVpk Input step 16 100% load 100% load s AMA2805S 8 4, 5 6 600 750 mVpk Turn On Overshoot AMA2812S AMA2815S Turn On Delay 8 4, 5, 6 4, 5, 6 0 to 100% load 0% load to 100% load 600 25 mVpk ms Notes to Specifications 1. Parameter guaranteed by line and load regulation tests. 2. Bandwidth guaranteed by design. Tested for 20KHz to 2.0MHz. 3. 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. 4. 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. 5. Load step transition time between 2 and 10 microseconds. 6. Recovery time is measured from the initiation of the transient to where VOUT has returned to within 1 % of VOUT at 50 percent load. 7. Input step transition time between 2 and 10 microseconds. 8. 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 AMA28XXS Series Block Diagram 6 +Input 1 +Output Output Return 2 Housekeeping Supply Input Return 7 Enable 5 CS Error Amplifier Case 8 Controller Application Information Inhibit Function (Enable) Connecting the enable input (Pin 5) to input common (Pin 7) will cause the converter to shut down. It is recommended that the enable pin be driven by an open collector device capable of sinking at least 400 A 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. Radiation Specification Parameter Condition Min Typ -- Max -- Unit Total Ionizing Dose Heavy Ion (Single event effects) MIL-STD-883, Method 1019.4 Operating bias applied during exposure 25 60 KRads (Si) MeV*cm /mg 2 BNL Dual Van de Graf Generator -- -- International Rectifier currently does not have a DSCC certified Radiation Hardness Assurance Program. www.irf.com 5 AMA28XXS Series Mechanical Outline 0.800 0.400 0.17 0.33 0.170 0.200 0.25 Typ O 0.140 x3 5 3 2 1 0.26 Typ 0.880 1.130 6 7 8 0.125 1.130 1.380 1.63 0.030 Dia Tolerance unless otherwise specified: x.xx 0.010 x.xxx 0.005 Pin Designation Pin # 1 2 3 4 5 6 7 8 Designation + Output Output Return NC Blank Enable + Input Input Return Case Ground 6 www.irf.com AMA28XXS Series Device Screening Requirement Temperature Range Element Evaluation Non-Destructive Bond Pull Internal Visual Temperature Cycle Constant Acceleration PIND Burn-In Final Electrical ( Group A ) PDA Seal, Fine and Gross Radiographic External Visual MIL-PRF-38534 2023 2017 1010 2001, Y1 Axis 2020 1015 MIL-PRF-38534 & Specification MIL-PRF-38534 1014 2012 2009 MIL-STD-883 Method No Suffix Class H N/A Yes Cond C 3000 Gs Cond A d CH d EM -55C to +85C N/A N/A -55C to +125C -55C to +125C Class H N/A Yes Cond C 3000 Gs Cond A 320 hrs @ 125C ( 2 x 160hrs ) -55C, +25C, +125C 2% Cond A, C Yes Yes c Cond C 3000 Gs N/A 48 hrs @ 125C -55C, +25C, +85C N/A Cond A N/A 320 hrs @ 125C ( 2 x 160hrs ) -55C, +25C, +125C 2% Cond A, C 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. Standard Microcircuit Drawing Equivalence Table Standard Microcircuit Drawing Number 5962-04247 5962-04248 5962-04249 Part Numbering AMA 28 05 S /EM Screening Level (Please refer to Screening Table) IR Standard Part Number AMA2805S AMA2812S AMA2815S Model Input Voltage 28 = 28V No Suffix, CH, EM Output Voltage 05 = 5V, 12 = 12V, 15 = 15V Output S = Single D = Dual 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. 07/2009 www.irf.com 7 |
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