AMA2805S

LAMBDA ADVANCED ANALOG INC. λ ADVANCE PRODUCT DESCRIPTION AMA2800 Series Radiation Tolerant DC/DC Converters DESCRIPTION The AMA2800 series of DC/DC converter modules has been specifically designed for operation in moderate radiation environments supplementing the higher radiation performance available in the Lambda Advanced Analog 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 AMA2800 series. The physical configuration of the AMA2800 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. Lambda Advanced Analog’s rugged ceramic seal pins are used exclusively in the package thereby assuring long term hermeticity. The AMA2800 has been designed for high density using chip and wire hybrid technology that complies with the intent of MIL-PRF-38534. Finished product will be fabricated in a facility fully qualified to MILPRF-38534. The standard processing adopted for the AMA2805S is similar to the requirements of MIL-PRF-38534 for class H, 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 Lambda Advanced Analog for special requirements. FEATURES ! ! ! ! ! ! ! ! ! ! ! ! ! 5 Watts Output Power Available with 5, 12 and 15 Volt Outputs Single and Dual Output Versions Nominal 28 Volt Input Total Ionizing Dose > 30KRad (Si) No SEE to LET > 60 MeV-cm /mg -55°C to +125°C Operating Range Full Load Fault Protection Flexible Mounting High Power Density All Elements Conservatively Derated Fully Isolated - Input to Output and to Case Complementary EMI Filter Available 2 Part Numbering AMA 28 05 S Model Input Voltage 28 = 28V Outputs S = Single D = Dual Output Voltage 5 = 5V 12 = 12V 15 = 15V At the time of printing, the devices described in this Advanced Product Description data sheet are in the development stage; therefore all features and specifications are preliminary and subject to change before release in their final form. AMA2800S AMA2800S Absolute Maximum Ratings (Exceeding these limits may cause damage to the device) Input Voltage: Power Output: Soldering: Temperature Range: -0.5V to +50VDC Internally Limited to 6.5 W typical 300°C, 10 Sec Operating – -55°C to +125°C Storage – -65°C to +135°C Typical Performance Characteristics Parameter OUTPUT Voltage Accuracy Power Ripple voltage Line Load Voltage Range Ripple Current Conditions unless otherwise specified -55°C ≤ TC≤ +125°C, VIN+28Vdc, CL=0 IOUT = IMAX, TC = +25°C VMIN ≤ VIN ≤ VMAX IOUT = IMAX VMIN ≤ VIN ≤ VMAX IMIN ≤ IOUT ≤ IMAX Limits ± 1% 5W 50 mVPP ±0.5% ±0.5% 16 V to 40 Vdc 100 mAPP 550 KHz 70% 4W REGULATION INPUT VMIN ≤ VIN ≤ VMAX, IOUT = IMAX Synchronization input open IOUT = IMAX, TC = +25°C Short Circuit or Overload SWITCHING FREQUENCY EFFICIENCY LOAD FAULT POWER DISSIPATION LOAD TRANSIENT Response Recovery Response Recovery 50% Load to/from 100% load ±5% VOUT 300 µSec ±7% VOUT 400 µSec 12 mSec LINE TRANSIENT IOUT = IMAX, VIN = 16 V to/from 40 V TURN ON DELAY IOUT = IMIN or IMAX Mechanical Outline 0.25 Typ 1.130 0.800 0.270 Ø 0.140 x3 5 4 3 2 1 0.880 1.130 6 7 8 0.125 1.380 0.025 D × 0.22 L Pins LAMBDA ADVANCED ANALOG INC. λ 2270 Martin Avenue Santa Clara CA 95050 Ph (408) 988-4930 FAX (408) 988-2702 0007