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LAMBDA ADVANCED ANALOG INC.
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 -55C to +125C 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 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 300C, 10 Sec Operating - -55C to +125C Storage - -65C to +135C
Typical Performance Characteristics
Parameter OUTPUT Voltage Accuracy Power Ripple voltage Line Load Voltage Range Ripple Current Conditions unless otherwise specified -55C TC +125C, VIN+28Vdc, CL=0 IOUT = IMAX, TC = +25C 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 = +25C 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 Sec 7% VOUT 400 Sec 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
O 0.140 x3
5 4 3 2 1
0.880
1.130
6
7
8
0.125
1.380
0.025 D x 0.22 L Pins
LAMBDA ADVANCED ANALOG INC.
2270 Martin Avenue Santa Clara CA 95050 Ph (408) 988-4930 FAX (408) 988-2702 0007

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