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. 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 -55°C to +125°C 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 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. www.irf.com 1 07/08/09 AMA28XXS Series Specifications Absolute Maximum Ratings Input Voltage range Recommended Operating Conditions -0.5V to +50VDC (Continuous), Input Voltage range +16V to +40VDC 80V (100ms) Output Power Less than or equal to 5W 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 Output Power Nom Max Unit 16 28 40 V 5.00 12.00 15.00 5.05 12.12 15.15 Iout = 0 Output Voltage Output Current Min AMA2805S AMA2812S AMA2815S 1 1 1 4.95 11.88 14.85 AMA2805S AMA2812S AMA2815S 2, 3 2, 3 2, 3 4.90 11.76 14.70 AMA2805S AMA2812S AMA2815S 1, 2, 3 1, 2, 3 1, 2, 3 All Models 1, 2, 3 V 1 5.10 12.24 15.30 Vin = 16, 28, 40 Volts 1 Vin = 28 Volts, 100% load Output Ripple Voltage 2 AMA2805S AMA2812S AMA2815S 1, 2, 3 1, 2, 3 1, 2, 3 Line 1, 2, 3 Load 1, 2, 3 Output voltage Regulation Vin = 16, 28, 40 Volts 100% Load BW = 20 Hz to 2.0 MHz Vin = 16, 28, 40 Volts Iout = 0, 50%, and 100% load 1000 417 333 mA 5.0 W 200 200 200 mVPP ±10 ±50 ±10 ±50 mV For Notes to Specifications, refer to page 4 2 www.irf.com AMA28XXS Series Static Characteristics (Continued) -55°C ≤ TCASE ≤ +125°C, VIN=28 VDC ±5%, CL=0, unless otherwise specified. Parameter Group A Subgroups Input Current No Load 1, 2, 3 Inhibit 1, 2, 3 Input Ripple Current Min Vin = 28V, Iout = 0, Inhibit (pin 5) = open Nom Max 20 50 8.0 12 Unit mA 2 1, 2, 3 Efficiency Inhibit (pin 5) shorted to input return (pin 7) Vin = 16, 28, 40 Volts, 100% load, BW = 20 Hz to 2 MHz 100 mAPP 100% load AMA2805S AMA2812S AMA2815S 1, 3 1, 3 1, 3 66 71 71 AMA2805S AMA2812S AMA2815S 2 2 2 66 68 68 Isolation Capacitive Load Test Conditions 3, 4 1 Input to output or any pin to case (except pin 8) at 500Vdc 4 No effect on dc performance 100 AMA2805S AMA2812S AMA2815S Short Circuit Power Dissipation 1, 2, 3 MTBF Weight MIL-HDBK-217F, SF @Tc=35°C % MΩ 500 100 100 µF 4.0 W 700 Khrs 32 g For Notes to Specifications, refer to page 4 www.irf.com 3 AMA28XXS Series Dynamic Characteristics -55°C ≤ TCASE ≤ +125°C, VIN=28 VDC ±5%, CL=0, unless otherwise specified. Group A Subgroups Parameter 4 Test Conditions 4, 5, 6 0% load to 100% load Switching Frequency 4, 5, 6 100% load Output Response To Step 8 Transient Load Changes 4, 5, 6 Short Circuit Recovery 4, 5, 6 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 AMA2805S Turn On Overshoot 4, 5, 6 4, 5, 6 4, 5, 6 500 Ù 100% Load step 0% Ù 50% Load step 50% Load step 50% Load step 0% 4, 5, 6 4, 5, 6 4, 5, 6 Input step 16 100% load 4, 5, 6 Input step 16 100% load 550 Max Unit 25 ms 600 KHz -450 +450 -750 +750 Ù 100% 300 100 100 Ù 50% Ù 40Vdc, Nom 2000 2000 2000 -550 -750 -750 mVpk µs +550 +750 +750 mVpk 1200 µs 100% load 600 750 mVpk 4, 5, 6 0 to 100% load 600 mVpk 4, 5, 6 0% load to 100% load 25 ms 4, 5 6 Ù 40Vdc, 8 AMA2812S AMA2815S Turn On Delay 4, 5, 6 4, 5, 6 4, 5, 6 Min 8 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 1 6 +Input +Output Output Return 2 Housekeeping Supply Error Amplifier Input Return Case 7 8 Enable CS Controller 5 Application Information Inhibit Function (Enable) EMI Filter 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 µA of current. The open circuit voltage of the inhibit input is 10 +1.0 VDC. 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 Total Ionizing Dose Condition MIL-STD-883, Method 1019.4 Min Typ Max Unit 25 — — KRads (Si) 60 — — Operating bias applied during exposure Heavy Ion (Single event effects) BNL Dual Van de Graf Generator 2 MeV•cm /mg International Rectifier currently does not have a DSCC certified Radiation Hardness Assurance Program. www.irf.com 5 AMA28XXS Series Mechanical Outline 0.800 0.17 0.33 0.400 0.170 0.200 0.25 Typ 0.26 Typ Ø 0.140 x3 5 3 2 1 0.880 1.130 6 7 8 0.125 1.130 0.030 Dia 1.380 1.63 Tolerance unless otherwise specified: x.xx ±0.010 x.xxx ±0.005 Pin Designation 6 Pin # Designation 1 + Output 2 Output Return 3 NC 4 Blank 5 Enable 6 + Input 7 Input Return 8 Case Ground www.irf.com AMA28XXS Series Device Screening Requirement MIL-STD-883 Method Temperature Range d No Suffix 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. Standard Microcircuit Drawing Equivalence Table Standard Microcircuit IR Standard Drawing Number Part Number Part Numbering AMA 28 05 S /EM Model Screening Level No Suffix, CH, EM 5962-04247 AMA2805S Input Voltage 5962-04248 5962-04249 AMA2812S AMA2815S 28 = 28V Output Voltage 05 = 5V, 12 = 12V, 15 = 15V (Please refer to Screening Table) 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