AMA28XXD

PD-94692E AMA28XXD SERIES HYBRID - HIGH RELIABILITY RADIATION TOLERANT DC-DC CONVERTER Description The AMA28XXD 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 AMA28XXD Series. The physical configuration of the AMA28XXD 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 AMA28XXD 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 accomodated. Consult IR San Jose for special requirements. 28V Input, Dual Output 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 ASA28XXD Series n Standard Microcircuit Drawings Available www.irf.com 1 08/17/10 AMA28XXD Series Specifications Absolute Maximum Ratings Input Voltage range Soldering temperature Storage case temperature 80V (100ms) 300°C for 10 seconds -65°C to +135°C -55°C ≤ TCASE ≤ +125°C, VIN = 28VDC ±5%, CL= 0, unless otherwise specified. Recommended Operating Conditions +16V to +40VDC Less than or equal to 5W -55°C to +125°C Output Power Operating case temperature -0.5V to +50VDC (Continuous), Input Voltage range Static Characteristics Parameter Input Voltage Output Voltage Group A Subgroups Test Conditions Min 16 Nom 28 Max 40 Unit V AMA2805D AMA2812D AMA2815D AMA2805D AMA2812D AMA2815D Output Current 1, 2 1 1 1 2, 3 2, 3 2, 3 Vin = 28 Volts, 20% load on both outputs ±4.95 ±5.00 ±5.05 ±11.88 ±12.00 ±12.12 ±14.85 ±15.00 ±15.15 ±4.90 ±11.76 ±14.70 ±5.10 ±12.24 ±15.30 V AMA2805D AMA2812D AMA2815D Output Power 1, 2 1, 2, 3 1, 2, 3 1, 2, 3 1, 2, 3 Vin = 16, 28, 40 Volts each output each output each output Vin = 28 Volts, 100% load Vin = 16, 28, 40 Volts 100% load BW = 20 Hz to 2 MHz 200 83 67 800 333 267 5.0 mA W Output Ripple Voltage AMA2805D AMA2812D AMA2815D Output Voltage Regulation Line 3 1, 3 1, 2, 3 1, 2, 3 1, 2, 3 200 200 290 mVPP AMA2805D AMA2812D AMA2815D AMA2805D AMA2812D AMA2815D 1, 2, 3 1, 2, 3 1, 2, 3 1, 2, 3 1, 2, 3 1, 2, 3 Vin = 16, 28, 40 Volts Iout = 10, 50%, 100% load ±10 ±10 ±10 ±10 ±10 ±10 ±25 ±50 ±50 ±50 ±50 ±50 mV Load For Notes to Specifications, refer to page 4 2 www.irf.com AMA28XXD Series Static Characteristics (Continued) Parameter Cross Regulation 5 -55°C ≤ TCASE ≤ +125°C, VIN= 28VDC ±5%, CL = 0, unless otherwise specified. Group A Subgroups 1, 2, 3 1, 2, 3 1, 2, 3 Test Conditions Minimum 1.0 watt on both outputs 20%-80% load Min Nom Max 15 8.0 8.0 Unit AMA2805D AMA2812D AMA2815D Input Current No Load Inhibit 3 % 1, 2, 3 1, 2, 3 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 35 60 mA 12 Input Ripple Current AMA2805D AMA2812D AMA2815D Efficiency 3 1, 2, 3 1, 2, 3 1, 2, 3 100 100 100 mAPP 100% load AMA2805D AMA2812D AMA2815D AMA2805D AMA2812D AMA2815D 1, 3 1, 3 1, 3 2 2 2 1 5, 6 66 71 71 60 68 68 Input to output or any pin to case (except pin 8) at 500Vdc No effect on dc performance, total for both outputs 100 % Isolation MΩ Capacitive Load AMA2805D AMA2812D AMA2815D Short Circuit Power Dissipation 4 4 4 1, 2, 3 500 200 200 4.0 µF W Khrs MTBF Weight MIL-HDBK-217F, SF @ 70ºC 750 32 g For Notes to Specifications, refer to page 4 www.irf.com 3 AMA28XXD Series Dynamic Characteristics Parameter Short Circuit Recovery Switching Frequency 3 6 -55°C ≤ TCASE ≤ +125°C, VIN = 28VDC ±5%, CL = 0, unless otherwise specified. Group A Subgroups 4, 5, 6 4, 5, 6 4, 5, 6 4, 5, 6 4, 5, 6 4, 5, 6 Test Conditions 0% load to 100% load 100% load Load step 50% Load step 0% Min Nom Max 25 Unit ms KHz mV pk 500 -400 -800 550 600 +400 +800 100 2000 Output Response To Step 3, 7 Transient Load Changes Recovery Time, Step Transient 3, 7, 8 Load Changes Output Response Transient Step 3, 6, 9 Line Changes AMA2805D AMA2812D AMA2815D Recovery Time Transient Step Line 3, 6, 9 Changes Turn On Overshoot 3, 10 Ù 100% Ù 50% Load step 50%Ù 100% Load step 0% Ù 50% Input step 16 100% load µs 4, 5, 6 4, 5, 6 4, 5, 6 Ù 40Vdc, -550 -750 -750 +550 +750 +750 1200 mV pk 4, 5, 6 4, 5, 6 4, 5, 6 4, 5, 6 Input step 16 ⇔ 40Vdc, 100% load 0% load 100% load 0% load to 100% load µs mV pk 600 400 25 Turn On Delay 3, 10 ms Notes to Specifications 1. 2. 3. 4. 5. Applicable to positive and negative outputs. Maximum combined output is 5.0 watts. 4.0 watts (max.) is available from either output (80%). Load current split equally between +VOUT and –VOUT. 1.0 watt load on output under test, 1.0 watt to 4.0 watt load change on other output. Capacitive value 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. 6. Parameter shall be tested as part of design characterization and after design or process changes. Thereafter, parameters shall be guaranteed to the limit specified. 7. Load step transition time between 2 and 10 microseconds. 8. Recovery time is measured from initiation of the transient to where VOUT has returned to within ±1% of VOUT at 50% load. 9. Input step transient time between 1 and 10 microseconds. 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 while power is applied to the input. 4 www.irf.com AMA28XXD Series Block Diagram +Input 6 +Output 1 Output Return 2 -Output 3 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 µA of current. The open circuit voltage of the inhibit input is 10 +1.0 VDC. Thermal Considerations Irrespective of the fact that the AMA28XXD series of converters are relatively low power devices and are designed to provide efficient voltage conversion, there will be some heat generated during normal operation. To avoid a continuous thermal rise that may eventually exceed the maximum case temperature rating and to maintain a safe operating environment for the internal components, these converters should be attached to a heat conducting surface allowing a continuous flow of the heat away from the base plate. This becomes more important when operating in the near vacuum environment of space which provides no alternate heat radiating path. EMI Filter An optional EMI filter is available (ASF461 or AFH461) will reduce the input ripple current to levels below the limits imposed by MIL-STD-461 CE03. Radiation Specification Parameter Condition MIL-STD-883, Method 1019.4 Operating bias applied during exposure BNL Dual Van de Graf Generator Min 25 60 Typ — — Max — — Unit KRads (Si) MeV•cm2 /mg Total Ionizing Dose Heavy Ion (Single event effects) International Rectifier currently does not have a DSCC certified Radiation Hardness Assurance Program. www.irf.com 5 AMA28XXD Series Mechanical Outline 0.800 0.400 0.200 0.17 0.33 0.170 0.25 Typ Ø 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 - Output Blank Enable + Input Input Return Case Ground 6 www.irf.com AMA28XXD 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 -55°C to +85°C N/A N/A -55°C to +125°C -55°C to +125°C Class H N/A Yes Cond C 3000 Gs Cond A 320 hrs @ 125°C ( 2 x 160hrs ) -55°C, +25°C, +125°C 2% Cond A, C Yes Yes c Cond C 3000 Gs N/A 48 hrs @ 125°C -55°C, +25°C, +85°C N/A Cond A N/A 320 hrs @ 125°C ( 2 x 160hrs ) -55°C, +25°C, +125°C 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 IR Standard Drawing Number Part Number 5962-04250 5962-04251 AMA2812D AMA2815D Part Numbering AMA 28 05 D /EM Model Input Voltage 28 = 28V Screening Level (Please refer to Screening Table) 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 SAN JOSE: 2520Junction Avenue, San Jose, California 95134, Tel: (408) 434-5000 Visit us at www.irf.com for sales contact information. Data and specifications subject to change without notice. 08/2010 www.irf.com 7