AMA2803R3S

PD - 94687A AMA28XXS SERIES RADIATION TOLERANT DC/DC CONVERTERS 28V Input, Single Output 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 AMA28XXS has been designed for high density using chip and wire hybrid technology that complies with the class H requirements of MIL-PRF-38534. 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. Advanced Analog’s rugged 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. Finished product will be fabricated in a facility fully qualified to MIL-PRF-38534. The standard processing adopted for the AMA28XXS meets the requirements of MIL-PRF-38534 for class H but with enhanced screening steps and includes element evaluation. 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 Watts Output Power Available in 3.3, 5, 12 and 15 Volt Outputs 16 - 40 VDC Input Range (28 VDC Nominal) Total Ionizing Dose > 25KRads (Si) 2 No SEE to LET > 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 www.irf.com 1 03/02/04 AMA28XXS Series Specifications Absolute Maximum Ratings Input Voltage Range Soldering Temperature Storage Case Temperature Input Voltage Range Output Power Operating Case Temperature -0.5V to +50VDC (Continuous), 80V (100ms) 300°C for 10 seconds 65°C to +135°C +16V to +40VDC Less than or equal to 5W -55°C to +125°C Recommended Operating Conditions Static Characteristics -55°C ≤ TCASE ≤ +125°C, VIN=28 VDC ±5%, CL=0, unless otherwise specified. Parameter Input Voltage Output Voltage AMA2803R3S AMA2805S AMA2812S AMA2815S AMA2803R3S AMA2805S AMA2812S AMA2815S Output Current 1 AMA2803R3S AMA2805S AMA2812S AMA2815S AMA2803R3S All Others Output Ripple Voltage 2 AMA2803R3S AMA2805S AMA2812S AMA2815S Output voltage Regulation 1 1 1 1 2, 3 2, 3 2, 3 2, 3 1, 2, 3 1, 2, 3 1, 2, 3 1, 2, 3 1, 2, 3 1, 2, 3 Vin = 16, 28, 40 Volts 100% Load BW = 20 Hz to 2 MHz Vin = 16, 28, 40 Volts Iout=0 Group A Subgroups Test Conditions Min 16 3.25 4.95 11.88 14.85 3.20 4.90 11.76 14.70 Nom 28 3.30 5.00 12.00 15.00 Max 40 3.35 5.05 12.12 15.15 3.40 5.10 12.24 15.30 1200 1000 417 333 3.96 5.00 200 200 200 200 Unit V V V V V V V V V mA mA mA mA W W mVPP mVPP mVPP mVPP Output Power 1 Vin = 28 Volts, 100% load 1, 2, 3 1, 2, 3 1, 2, 3 1, 2, 3 Line Load 1, 2, 3 1, 2, 3 Vin = 16, 28, 40 Volts Iout = 0, 50%, and 100% load ±10 ±10 ±50 ±50 mV mV For Notes to Specifications, refer to page 4 2 www.irf.com AMA28XXS Series Static Characteristics Parameter Input Current No Load Inhibit Input Ripple Current 2 Efficiency (Continued) -55°C ≤ TCASE ≤ +125°C, 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 Max 50 12 Unit mA mA 1, 2, 3 1, 2, 3 1, 2, 3 100 63 66 71 71 60 66 68 68 mAPP % % % % % % % % MΩ AMA2803R3S AMA2805S AMA2812S AMA2815S AMA2803R3S AMA2805S AMA2812S AMA2815S 1, 3 1, 3 1, 3 1, 3 2 2 2 2 1 4 Input to output or any pin to case (except pin 8) at 500Vdc No effect on dc performance Isolation Capacitive Load 3, 4 AMA2803R3S AMA2805S AMA2812S AMA2815S Short Circuit Power Dissipation MTBF Weight 100 500 500 100 100 4 µF µF µF µF watts Khrs 1, 2, 3 MIL-HDBK-217F, SF @ Tc=35°C 700 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. Parameter Short Circuit Recovery 4 Switching Frequency Output Response To Step Transient Load Changes 8 Group A Subgroups Test Conditions 0% load to 100% load 100% load Load step 50%ó 100% Load step 0% ó 50% Min Nom Max 25 Unit ms KHz 4, 5, 6 4, 5, 6 4, 5, 6 4, 5, 6 500 -450 -750 550 600 +450 +750 mVpk mVpk Recovery Time, Step Transient Load Changes 5, 6 AMA2803R3S AMA2805S AMA2812S AMA2815S AMA2803R3S AMA2805S AMA2812S AMA2815S Output Response Transient Step Line Changes 4, 7 AMA2803R3S AMA2805S AMA2812S AMA2815S Recovery Time Transient Step Line Changes 4, 6, 7 Turn On Overshoot 8 4, 5, 6 4, 5, 6 4, 5, 6 4, 5, 6 4, 5, 6 4, 5, 6 4, 5, 6 4, 5, 6 Load step 50%ó 100% 300 300 100 100 2000 2000 2000 2000 µs µs µs µs µs µs µs µs Load step 0% ó 50% 4, 5, 6 4, 5, 6 4, 5, 6 4, 5, 6 4, 5, 6 Input step 16 ó 40Vdc, 100% load -450 -550 -750 -750 +450 +550 +750 +750 1200 mV pk mV pk mV pk mV pk µs Input step 16 ó 40Vdc, 100% load 0% load 100% load 0% load to 100% load 4, 5, 6 4, 5, 6 600 400 25 mV pk mV pk ms Turn On Delay 8 4, 5, 6 Notes to Specifications 1 Parameter guaranteed by line and load regulation tests. 2 Bandwidth guaranteed by design. Tested for 20 KHz to 2 MHz. 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 V OUT 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 AMA28XXS Block Diagram 1 + O u tput 6 + In put R e turn 2 H ousekeeping S upply R e turn 7 E na ble 5 CS E rror A m p lifier C a se 8 C o n tro lle r Application Information Inhibit Function 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 10.0 +1 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 5 AMA28XXS Series Standard Process Screening for AMA28XXS Series Requirement MIL-STD-883 Method /EM Limits Flight (CH+) Limits Temperature Range Element Evaluation Internal Visual Temperature Cycle Constant Acceleration PIND Burn-in Interim Electrical; @160 hrs Final Electrical (Group A) Read & Record Data PDA (25C, interim to final) Radiographic Inspection Fine & Gross External Visual ✼ Per IR Internal Standards 2012 1014 2009 2017 1010 2001 2020 1015 MIL-PRF-38534 & Specification -55°C to +125°C — ✼ — — — 48hrs -55°C, +25°C, +125°C — — — ✼ -55°C to +125°C MIL-PRF-38534 Yes Condition C Condition A, (3000g) Condition A 320 hrs @ +125°C (2 x 160 hrs) -55°C, +25°C, +125°C 2% Yes Condition A, C Yes 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 — — 6 www.irf.com AMA28XXS Series AMA28XXS Case Outline 0.800 0.17 0.400 0.33 0.200 0.170 0.25 Typ Ø 0.140 x3 5 3 2 1 0.26 T yp 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 No. 1 2 3 4 5 6 7 8 Designation Positive Output Output Return N/C Blank Enable Positive Input Input Return Case Ground Part Numbering AMA 28 05 S / EM Model Input Voltage 28 = 28V Screening Blank = Flight Model (CH+) /EM = Engineering Model Outputs Output Voltage 03R3 = 3.3V, 05 = 5V 12 = 12V, 15 = 15V 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. 03/04 www.irf.com 7