S2803R3SPBF [INFINEON]
DC-DC Regulated Power Supply Module, 1 Output, 10W, Hybrid, HERMETIC SEALED PACKAGE-7;
| 型号： | S2803R3SPBF |
| 厂家： | 
Infineon |
| 描述： | DC-DC Regulated Power Supply Module, 1 Output, 10W, Hybrid, HERMETIC SEALED PACKAGE-7 CD |
| 文件： | 总8页 (文件大小：125K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
PD- 94584B
S-SERIES
28V Input, Single/Dual Output
HIGH RELIABILITY
RADIATION HARDENED
LOW POWER
DC/DC CONVERTER
Description
The S-Series of DC/DC converters are low power
radiation hardened, high reliability devices designed
for hostile radiation environments such as those
encountered by geostationary earth orbit satellites, deep
space probes and communication systems. Features
include small size, high efficiency, low weight and a
high tolerance to total ionizing dose, single event effects,
and environmental stresses such as temperature
extremes, mechanical shock, and vibration. All
components are fully derated to meet the requirements
of MIL-STD-975 and MIL-STD-1547. Extensive
documentation including Radiation Susceptibility,
Thermal Analysis, Stress Analysis and MTBF are
available.
Features
n Total Dose >100K Rad(Si)
n SEE > 82 MeV.cm2/mg
n Low Weight < 50 grams
n Magnetically Coupled Feedback
n 18V to 40V DC Input Range
n Up to 10W Output Power
n Single and Dual Output Models Include
3.3, 5, 7,12,15, ±5, ±12 and ±15V
n High Efficiency - to 82%
n -55°C to +125°C Operating Temperature
Range
The converters incorporate a fixed frequency single
ended forward topology with magnetic feedback and
an internal EMI filter utilizing large multilayer ceramic
capacitors processed per MIL-PRF-49470 for improved
reliability. All models include an external inhibit port .
They are encased in a hermetic 1.71” x 1.31” x 0.45”
steel package and weigh less than 50 grams. The
package utilizes rugged ceramic feed-through copper
core pins and is hermetically sealed using parallel seam
welding.
n 100MΩ @ 500VDC Isolation
n Under-Voltage Protection
n Short Circuit and Overload Protection
n Output Over Voltage Limiter
n External Inhibit
Applications
n
n
n
Geostationary or Low Earth Orbit Satellites
Launch Vehicles
Communication Systems
Environmental screening includes temperature cycling,
constant acceleration, fine and gross leak, and burn-in
as specified by MIL-PRF-38534 for class K hybrids.
Non-flight versions of the S-Series converters are
available for system development purposes. Variations
inelectrical specifications and screening to meet custom
requirements can be accommodated.
www.irf.com
1
12/08/04
S-SERIES
Circuit Description
An external enable port is provided to control
converter operation. This input is intended for
operation with an open collector transistor drive or
a relay closure to the input return. The pin may be
left open for normal operation and has a nominal
open circuit voltage of 10.5V
The S-Series converters utilize a single-ended
forward topology with resonant reset. The nominal
switching frequency is 525kHz. Electrical isolation
and tight output regulation are achieved through the
use of a magnetically coupled feedback. Voltage
feed-forward with duty factor limiting provides high
line rejection.
Design Methodology
Output power is limited under any load fault condition
to approximately 135% for singles and 145% for
duals of rated. An overload condition causes the
converter output to behave like a constant current
source with the output voltage dropping below
nominal. The converter will resume normal operation
when the load current is reduced below the current
limit point. This protects the converter from both
overload and short circuit conditions. There are no
latching elements included in the load fault protection
circuits to eliminate the possibility of falsely triggering
the protection circuits during single event radiation
exposure.
The S-Series was developed using a proven
conservative design methodology, which includes
selecting radiation tolerant, and established
reliability components and fully derating to the
requirements of MIL-STD-975 and MIL-STD-1547.
Heavy derating of the radiation-hardened power
MOSFET virtually eliminates the possibility of SEGR
and SEB. A magnetic feedback circuit is utilized
instead of opto-couplers to minimize temperature,
radiation and aging sensitivity. PSPICE was used
extensively to predict and optimize circuit
performance for both beginning and end-of-life.
Thorough design analyses include Radiation
Susceptibility (TREE), Worst Case, Stress, Thermal
An under-voltage protection circuit prohibits the
converter from operating when the line voltage is
too low for safe operation. The converter will not
start until the line voltage rises to approximately 12
volts
and Reliability (MTBF).
2
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S-SERIES
Absolute Maximum Ratings
Recommended Operating Conditions
Input voltage range
Output power
-0.5Vdc to +60Vdc
Internally limited
Input voltage range
Output power
18Vdc to +40Vdc
0 to Max. Rated
Lead temperature
Operating
temperature
300°C for 10 seconds
Operating temperature
Operating temperature1
1 Meets derating per MIL-STD-975
°
°
°
°
-55 C to +135 C
-55 C to +125 C
Storage temperature
-55°C to +135°C
-55°C to +70°C
Electrical Performance Characteristics
Conditions
Limits
Nom
28
Group A
Subgroup
-55°C ≤ TC ≤ +125°C
VIN = 28V DC ± 5%, CL = 0
unless otherwise specified
Parameter
Unit
V
Min
18
Max
40
Input Voltage
Output Voltage ( Vout )
S2803R3S
S2805S
1
1
1
1
1
1
1
1
IOUT = 100% rated load
Note 4
3.27
4.95
6.93
11.88
14.85
±4.95
±11.88
±14.85
3.30
5.00
7.00
12.00
15.00
±5.00
±12.00
±15.00
3.33
5.05
7.07
12.12
15.15
±5.05
±12.12
±15.15
S2807S
S2812S
S2815S
S2805D
S2812D
S2815D
IOUT = 100% rated load
Note 4
V
S2803R3S
S2805S
S2807S
S2812S
S2815S
S2805D
S2812D
S2815D
2,3
2,3
2,3
2,3
2,3
2,3
2,3
2,3
3.23
4.90
6.86
11.76
14.70
±4.90
±11.76
±14.70
3.37
5.10
7.14
12.24
15.30
±5.10
±12.24
±15.30
Output power ( POUT
All models
)
)
0
1,2,3
1,2,3
VIN = 18, 28, 40 Volts, Note 2
VIN = 18, 28, 40 Volts, Note 2
10
W
A
Output current ( IOUT
S2803R3S
S2805S
0
0
0
0
0
0
0
0
3.03
2.0
1.43
0.83
0.67
1.6
S2807S
S2812S
S2815S
S2805D
S2812D
S2815D
Either Output, Note 3
Either Output, Note 3
Either Output, Note 3
0.66
0.54
Line regulation ( VRLINE
)
1,2,3
1,2,3
VIN = 18, 28, 40 Volts
IOUT = 0, 50%, 100% rated, Note 4
-0.25
0.25
%
%
Load regulation ( VRLOAD
)
IOUT = 0, 50%, 100% rated, Note 4
VIN = 18, 28, 40 Volts
-0.50
0.50
Cross regulation ( VRCROSS
S2805D
)
1,2,3
Duals only, Note 5
VIN = 18, 28, 40 Volts
-5.0
-3.0
-3.0
5.0
3.0
3.0
S2812D
S2815D
%
For Notes to Specifications, refer to page 5
www.irf.com
3
S-SERIES
Electrical Performance Characteristics ( continued )
Conditions
Limits
Nom
Group A
Subgroup
-55°C ≤ TC ≤ +125°C
VIN = 28V DC ± 5%, CL = 0
unless otherwise specified
Parameter
Unit
mA
Min
Max
Input current ( IIN
)
S2803R3S
S2805S
S2807S
S2812S
S2815S
S2805D
S2812D
S2815D
1,2,3
IOUT = 0, Pin 4 open
60
70
70
70
70
70
100
100
Pin 4 shorted to pin 2
VIN = 18, 28, 40 Volts
5.0
mA
Switching frequency ( FS )
1,2,3
1,2,3
500
525
550
KHz
Output ripple ( VRIP
)
I
OUT = 100% rated load
Notes 4, 6
S2803R3S
S2805S
S2807S
S2812S
S2815S
S2805D
S2812D
S2815D
50
50
50
50
60
80
80
80
mV p-p
Efficiency ( EFF
)
S2803R3S
S2805S
S2807S
S2812S
S2815S
S2805D
S2812D
S2815D
1,2,3
IOUT = 100% rated load
Note 4
68
75
76
78
78
77
78
78
73
80
81
81
82
80
81
82
%
Enable Input (Inhibit Function)
Open circuit voltage
1,2,3
1,2,3
Note 1
9.5
11.5
500
50
V
µA
V
Drive current (sink)
Voltage range
-0.5
Current Limit Point
Expressed as a percentage
V
OUT = 90% of Nominal, Note 4, 13
of full rated load current
140
140
145
145
146
150
160
167
S2803R3S
S2805S
S2807S
S2812S
S2815S
S2805D
S2812D
S2815D
105
105
105
105
105
105
105
105
%
Power dissipation, load fault (PD)
1,2,3
4,5,6
Short Circuit, Overload, Note 8
9.0
W
Output response to
Half Load to/ from Full Load, Notes 4,9
-300
300
mV pk
step load changes (VTLD
Recovery time,
)
4,5,6
Half Load to/from Full Load, Note
4,9,10
200
µS
step load changes (TTLD
)
For Notes to Specifications, refer to page 5
4
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S-SERIES
Electrical Performance Characteristics ( continued )
Conditions
-55°C ≤ TC ≤ +125°C
IN = 28V DC ± 5%, CL = 0
Limits
Nom
Group A
Subgroup
Parameter
Unit
V
Min
Max
unless otherwise specified
Output response to
18V to/from 40V
step line changes (VTLN
)
4,5,6
4,5,6
4,5,6
IOUT = 100% rated load, Notes 1,4,11
-300
300
200
mV pk
Recovery time,
18V to/from 40V
IOUT = 100% rated load, Notes 1,4,10,11
step line changes (TTLN
)
µS
Turn-on Response
Overshoot (VOS
S2803R3S
S2805S
)
10% Load, Full Load
Notes 4,12
500
600
S2807S
S2812S
S2815S
S2805D
S2812D
S2815D
750
1200
1500
600
1200
1500
10
mV
Turn-on Delay (TDLY
)
1.5
mS
µF
Capacitive Load (CL)
S2803R3S
S2805S
1
IOUT = 100% rated load
No effect on DC performance
Notes 1, 4, 7
2200
1000
750
180
120
500
90
S2807S
S2812S
S2815S
S2805D
Each output on duals
S2812D
S2815D
60
Line Rejection
1
1
IOUT = 100% rated load
DC to 50KHz, Notes 1, 4
40
50
dB
Isolation
Input to Output or Any Pin to Case
except pin 3, test @ 500VDC
100
MΩ
Device Weight
MTBF
50
g
1.5 x 106
Hours
MIL-HDBK-217F2, SF, 35°C
Electrical Performance Characteristics - Notes
1. Parameter is tested as part of design characterization or after design changes. Thereafter, parameter
shall be guaranteed to the limits specified.
2. Parameter verified during line and load regulation tests.
3. Output load current must be distributed such that at least 20% of the total load current is being provided by
one of the outputs.
4. Load currents split equally between outputs on dual output models.
5. Cross regulation is measured with 20% rated load on output under test while changing the load on the
other output from 20% to 80% of rated.
6. Guaranteed for a D.C. to 20MHz bandwidth. Tested using a 20KHz to 10MHz bandwidth.
7. 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 may interfere with the proper operation of the converter’s
overload protection, causing erratic behavior during turn-on.
8. Overload power dissipation is defined as the device power dissipation with the load set such that VOUT
=
90% of nominal.
9. Load step transition time ≥ 10 µSec.
10. Recovery time is measured from the initiation of the transient to where VOUT has returned to within ±1% of
its steady state value.
11. Line step transition time ≥ 100 µSec.
12. Turn-on delay time from either a step application of input power or a logic low to a logic high transition on
the inhibit pin (pin 4) to the point where VOUT = 90% of nominal.
13. Current limit point expressed as a percentage of full rated load current.
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5
S-SERIES
Radiation Performance Characteristics
Test
Highest
Level
Conditions
Min
Unit
Tested
MIL-STD-883, Method 1019.5
Operating bias applied during exposure,
Krads
(Si)
Total Ionizing Dose ( Gamma )
100
82
150
82
Half Rated Load, V = 28V
IN
Heavy ions (LET)
Operating bias applied during exposure,
2
Single Event Effects
SEU, SEL, SEGR, SEB
MeV cm
/mg
Full Rated Load, V = 18, 28, 40V
IN
Device Screening
Test/Inspection
Method
/EM Suffix
Flight (No suffix)
Element Evaluation
Nondestructive Bond Pull
Internal Visual
MIL-PRF-38534 class K equivalent with SEM
MIL-STD-883, Method 2023
MIL-STD-883, Method 2017
Temperature Cycling
Constant Acceleration
Electrical
MIL-STD-883, Method 1010
C
MIL-STD-883, Method 2001(3Kg)
In accordance with device specification
MIL-STD-883, Method 2020
A, Y1 axis only
PIND
A
Burn-in (2 × 160 hours)
Final Electrical (Group A )
MIL-STD-883, Method 1015
48 Hours
320 Hours
In accordance with device specification
MIL-STD-883, Method 1014
Seal
Fine Leak
Gross Leak
A1
C
Radiographic
MIL-STD-883, Method 2012
MIL-STD-883, Method 2009
External Visual
6
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S-SERIES
Block Diagram
Single Output
EMI
Filter
1
+Input
6
7
+Vout
Under-Voltage
Detector
Vout
Return
Primary
Housekeeping
Supply
4
Enable
Drive
2
Pulse Width
Modulator
Error
Amp &
Ref
FB
CS
Case
Input
Return
3
Dual Output
EMI
Filter
1
+Input
7
6
5
+Vout
Under-Voltage
Detector
Return
-Vout
Primary
Housekeeping
Supply
4
Enable
Drive
2
Pulse Width
Modulator
Error
Amp &
Ref
Case
FB
CS
Input
Return
3
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7
S-SERIES
S-Series - Case Outline
1.960
Ø 0.140
3 Plcs
0.600 1.310
0.355
1.000
0.155
0.600
0.705
0.400
0.200
Pin ø
0.030
1.710
0.250 Typ
2.210 Ref
2.265 Max
0.26 ±0.015
Tolerances, unless
otherwise specified
.XX = ± 0.010
0.050
Typ
.XXX = ± 0.005
0.425 Max
0.220
Pin Designation
Part Numbering
S 28 05 S / EM
Pin No
Single
Vin
Dual
Vin
Model
Suffix
1
2
3
4
5
6
7
None = Flight
Input Voltage
28 = 28V Nominal
/EM = Prototype
Case
Case
Input Return
Enable
Input Return
Enable
Output Voltage
03R3 = 3.3V, 05 = 5V
07 = 7V, 12 = 12V
15 = 15V
Outputs
S = Single
D = Dual
N/C
- Vout
+ Vout
Output Return
+ Vout
Output Return
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Visit us at www.irf.com for sales contact information.
Data and specifications subject to change without notice. 12/04
8
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