LAMBDA ADVANCED ANALOG INC.
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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 MIL-
PRF-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
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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
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
≤
T
C
≤
+125°C, V
IN
+28Vdc, C
L
=0
°
°
I
OUT
= I
MAX
, T
C
= +25°C
V
MIN
≤
V
IN
≤
V
MAX
I
OUT
= I
MAX
V
MIN
≤
V
IN
≤
V
MAX
I
MIN
≤
I
OUT
≤
I
MAX
Limits
± 1%
5W
50 mV
PP
±0.5%
±0.5%
16 V to 40 Vdc
100 mA
PP
550 KHz
70%
4W
REGULATION
INPUT
V
MIN
≤
V
IN
≤
V
MAX
, I
OUT
= I
MAX
Synchronization input open
I
OUT
= I
MAX
, T
C
= +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% V
OUT
300 µSec
±7% V
OUT
400 µSec
12 mSec
LINE TRANSIENT
I
OUT
= I
MAX
, V
IN
= 16 V to/from 40 V
TURN ON DELAY
I
OUT
= I
MIN
or I
MAX
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
京公网安备 11010802033920号
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