AMF28XXD_08

PD-94688C AMF28XXD SERIES HYBRID - HIGH RELIABILITY RADIATION TOLERANT DC/DC CONVERTER Description The AMF28XXD 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 AMF28XXD series. The physical configuration of the AMF28XXD 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. I nternational Rectifier ’s rugged ceramic seal pins are used exclusively in the package thereby assuring long term hermeticity. The AMF28XXD 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-PRF-38534, 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. 28V Input, Dual Output AMF Features n n n n n n n n n n n n n n 12W Output Power Available in ±5V, ±12V and ±15V Outputs 16 - 40VDC Input Range (28VDC Nominal) Low Input/Output Noise Total Ionizing Dose > 25KRads (Si) 2 SEE Hardened to LET up to 60MeV.cm /mg -55°C to +125°C Operating Range Indefinite Short Circuit Protection Flexible Mounting High Power Density Fully Isolated - Input to Output and to Case Complimentary EMI Filter Available Externally Synchronizable Electrical Performance Similar to AHF28XXD Series n Standard Microcircuit Drawings Available www.irf.com 1 09/15/08 AMF28XXD Series Specifications Absolute Maximum Ratings I nput Voltage range Soldering temperature Storage case temperature -0.5V to +50VDC 300°C for 10 seconds -65°C to +135°C R ecommended Operating Conditions Input Voltage range Output Power Operating case temperature +16V to +40VDC Less than or equal to 12W -55°C to +125°C Static Characteristics Parameter Input Voltage Output Voltage -55°C ≤ TCASE ≤ +125°C, VIN=28VDC ±5%, CL=0, unless otherwise specified. Group A Subgroups Test Conditions Min 16 Nom 28 Max 40 Unit V AMF2805D AMF2812D AMF2815D AMF2805D AMF2812D AMF2815D Output Current 1, 2 1 1 1 2, 3 2, 3 2, 3 Vin = 28 Volts, 10% 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 AMF2805D AMF2812D AMF2815D Output Power 1, 2 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 240 100 80 2160 900 720 mA AMF2805D AMF2812D AMF2815D Output Ripple Voltage AMF2805D AMF2812D AMF2815D Output voltage Regulation Line 3 1, 3 1, 2, 3 1, 2, 3 1, 2, 3 Vin = 16, 28, 40 Volts, 100% load, BW = 20 Hz to 2 MHz 12 12 12 W 1, 2, 3 1, 2, 3 1, 2, 3 25 25 25 60 60 60 mVPP AMF2805D AMF2812D AMF2815D AMF2805D AMF2805D AMF2805D 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%, and 100% load ±10 ±10 ±10 ±10 ±10 ±10 ±25 ±50 ±50 ±50 ±50 ±50 Load mV For Notes to Specifications, refer to page 5 2 www.irf.com AMF28XXD Series Static Characteristics (Continued) Parameter Cross Regulation 5 -55°C ≤ TCASE ≤ +125°C, VIN=28VDC ±5%, CL=0, unless otherwise specified. Group A Subgroups Test Conditions Minimum 1.0 watt on both outputs 10%-90% load Min Nom Max 10 3.0 3.0 Unit AMF2805D AMF2812D AMF2815D Input Current No Load 1, 2, 3 1, 2, 3 1, 2, 3 % AMF2805D AMF2812D AMF2815D AMF2805D AMF2812D AMF2815D 3 1, 2, 3 1, 2, 3 1, 2, 3 1, 2, 3 1, 2, 3 1, 2, 3 Vin=28V, Iout=0, Inhibit (pin 1)=open 35 35 35 8.0 8.0 8.0 60 60 60 12 12 12 mA Inhibit Inhibit (pin 1) shorted to input return (pin 7) Input Ripple Current AMF2805D AMF2812D AMF2815D Efficiency 3 1, 2, 3 1, 2, 3 1, 2, 3 Vin = 16, 28, 40 Volts, 100% load, BW = 20 Hz to 2 MHz 20 20 20 50 50 50 mAPP 100% load AMF2805D AMF2812D AMF2815D AMF2805D AMF2812D AMF2815D 1, 3 1, 3 1, 3 2 2 2 1 5, 6 76 77 78 72 74 74 % Isolation Input to output or any pin to case (except pin 6) at 500Vdc No effect on dc performance, total for both outputs 100 MΩ Capacitive Load 4 AMF2805D AMF2812D AMF2815D 500 200 200 6.0 µF Short Circuit Power Dissipation 1, 2, 3 W Khrs MTBF MIL-HDBK-217F, SF @ Tc=35°C 750 Weight 36 g For Notes to Specifications, refer to page 5 www.irf.com 3 AMF28XXD Series Dynamic Characteristics Parameter Short Circuit Recovery 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 Test Conditions 0% load to 100% Load Min Nom Max 25 25 25 500 550 600 Unit AMF2805D AMF2812D AMF2815D Switching Frequency 3 ms 100% load KHz Synchronization Input 3 Frequency Range Pulse Amplitude, Hi 6 Pulse Amplitude, Lo 6 Pulse Rise time 6 Pulse Duty Cycle 6 Output Response To Step Transient Load Changes 3, 7 4, 5, 6 500 2.5 -0.5 20 700 10 0.8 100 80 KHz V V ns % 4, 5, 6 4, 5, 6 Recovery Time, Step Transient Load 3, 7, 8 Changes Load step 50% Ù100% Load step 10% Ù 50% -200 --800 +200 +800 mVpk 4, 5, 6 4, 5, 6 Load step 50% Output Response Transient Step Line 3, 6, 9 Changes AMF2805D AMF2812D AMF2815D Recovery Time Transient Step Line 3, 6, 9 Changes Turn On Overshoot 3, 10 Ù100% Load step 10% Ù50% Input step 16Ù to 40Vdc, 100% Load -450 -750 -750 70 2000 µs 4, 5, 6 4, 5, 6 4, 5, 6 Input step 16 100% load +450 +750 +750 mVpk Ù 40Vdc, 1200 µs 600 400 300 300 4, 5, 6 All AMF2805D AMF2812D AMF2815D 4, 5, 6 4, 5, 6 4, 5, 6 4, 5, 6 0% load 100% load mVpk Turn On Delay 3, 10 4, 5, 6 0% load to 100% load 25 ms For Notes to Specifications, refer to page 5 4 www.irf.com AMF28XXD Series Notes to Specifications 1. 2. 3. 4. 5. Applicable to positive and negative outputs. Maximum combined output is 12W. 10.8W (max.) is available from either output (90%). Load current split equally between +VOUT and –VOUT. 1.2W load on output under test, 1.2W to 10.8W 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 2.0µs and 10µs. 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 1.0µs and 10 µs. 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. Block Diagram 8 +Input EMI Filter 3 +Output Output Return 4 1 Enable 6 Primary Housekeeping Supply 5 - Output Case 2 Drive Sync Input Input Return 7 Pulse Width FB Modulator CS Error Amp & Ref Application Information Inhibit Function (Enable) Connecting the enable input (Pin 1) 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. If the user chooses not to use the inhibit function, it may be left open and the converter will function normally. Because it is internally pulled up, the open circuit voltage of the inhibit input is 10 +1.0VDC. Device Synchronization 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 10KHz), 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 AMF 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. www.irf.com 5 AMF28XXD Series Mechanical Outline 1.130 Ø 0.140 0.17 0.03D x 0.25L 8 Pins 6 1.850 1.600 4 5 2.10 0.600 0.800 1.000 7 2 3 0.400 8 1 0.19 1.380 0.33 Tolerance unless otherwise specified: x.xx ±0.010 x.xxx ±0.005 Pin Designation Pin # 1 2 3 4 5 6 7 8 Designation Enable Sync Input + Output Output Return - Output Case Ground Input Return + Input Radiation Specification Parameter Total Ionizing Dose Condition MIL-STD-883, Method 1019.4 Operating bias applied during exposure BNL Dual Van de Graf Generator Min 30 Typ — Max — Unit KRads (Si) MeV •cm /mg 2 Heavy Ion (Single event effects) 60 — — International Rectifier currently does not have a DSCC certified Radiation Hardness Assurance Program. 6 www.irf.com AMF28XXD 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 5962-05222 5962-05223 AMF2812D AMF2815D Part Numbering AMF 28 05 D /EM Model Input Voltage 28 = 28V Screening Level (Please refer to Screening Table) No Suffix, CH, EM Output S = Single D = Dual Output Voltage 05 = ±5V 12 = ±12V 15 = ±15V 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