M3G2803R312T/EM [INFINEON]
DC-DC Regulated Power Supply Module, 3 Output, 33.2W, Hybrid, HERMETIC SEALED, CERAMIC PACKAGE-13;
| 型号： | M3G2803R312T/EM |
| 厂家： | 
Infineon |
| 描述： | DC-DC Regulated Power Supply Module, 3 Output, 33.2W, Hybrid, HERMETIC SEALED, CERAMIC PACKAGE-13 转换器 DC-DC转换器 |
| 文件： | 总10页 (文件大小：140K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
PD-95890D
M3G2803R312T
28V Input, Triple Output
HYBRID-HIGH RELIABILITY
RADIATION HARDENED
DC-DC CONVERTER
Description
The M3G-Series of DC-DC converters are radiation
hardened, high reliability converters designed for
extended operation in hostile environments. Their small
size and low weight make them ideal for applications
such as geostationary earth orbit satellites and deep
space probes. They exhibit 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, MIL-STD-
1547 and GSFC PPL-21 Appendix B.
M3G
Features
n Total Dose > 200 Krad(Si),
typically usable to > 300 KRad(Si)
n SEE Hardened to LET up to 82 MeV.cm2/mg
n Internal EMI Filter, Converter capable of
meeting MIL-STD-461C CEO3
The converters incorporate a fixed frequency single
ended forward topology with magnetic feedback and
an internal EMI filter. These converters are capable of
meeting the conducted emissions and conducted
susceptibility requirements of MIL-STD-461C without
any additional components. External inhibit and
synchronization input and output allow these converters
to be easily incorporated into larger power systems.
They are enclosed in a hermetic 3" x 2" x 0.475" package
constructed of an Aluminum-Silicon-Carbide (AlSiC)
base and an Alloy 48 ring frame and they weigh less
than 110 grams. The package utilizes rugged ceramic
feed-through copper core pins and is sealed using
parallel seam welding.
n Low Weight, < 110 grams
n Magnetically Coupled Feedback
n 18V to 50V DC Input Range
n Up to 33W Output Power
n Main Output Isolated from Dual Outputs
n
High Efficiency - to 80%
n -55°C to +125°C Operating Temperature Range
n 100MΩ @ 500VDC Isolation
n Under-Voltage Lockout
n Synchronization Input and Output
n
Short Circuit and Overload Protection
n Output Over Voltage Limiter
n External Inhibit
n > 5,000,000 Hour MTBF
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.
Applications
n
n
n
Geostationary Earth Orbit Satellites (GEO)
Deep Space Satellites / Probes
Strategic Weapons and Communication
Systems
Non-flight versions of the M3G-Series converters are
available for system development purposes. Variations
in electrical specifications and screening to meet custom
requirements can be accommodated.
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1
03/01/10
M3G2803R312T
Circuit Description
An external inhibit port is provided to control converter
operation. The nominal threshold relative to the input
return (pin 2) is 1.4V. If 2.0V or greater are applied
to the Inhibit pin (pin 3) then the converter will
operate normally. A voltage of 0.8V or less will
cause the converter to shut-down. The pin may be
left open for normal operation and has a nominal
open circuit voltage of 4.0V.
The M3G-Series converters utilize a single-ended
forward topology with resonant reset. The nominal
switching frequency is 500kHz. 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 and protection against output over
voltage in the event of an internal control loop failure.
This mechanism limits the maximum output voltage
to approximately 20% over the nominal regardless of
the line voltage.
Synchronization input and output allow multiple
converters to operate at a common switching
frequency. Converters can be synchronized to one
another or to an externally provided clock. This can
be used to eliminate beat frequency noise or to avoid
creating noise at certain frequencies for sensitive
systems.
An internal EMI filter reduces the conducted
emissions to less than 5mA rms on the input power
leads. A two-stage output filter reduces the typical
output ripple to less than 20mV peak-to-peak.
The main (+3.3V) output is regulated by the control
loop and typically exhibits better than 1% regulation.
The auxiliary (±12V) outputs are maintained through
tight coupling in the power transformer and main
output filter inductor and typically exhibit better than
5% regulation. The main output and auxiliary outputs
are isolated from each other.
Design Methodology
The M3G-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. Careful sizing
of decoupling capacitors and current limiting
resistors minimizes the possibility of photo-current
burn-out. 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
and RadSPICE were 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, Failure Modes and Effects (FMEA) and
Reliability (MTBF).
Output power is limited under any load fault condition
to approximately 125% 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. The current limit point exhibits a slightly
negative temperature coefficient to reduce the
possibility of thermal runaway.
An under-voltage lockout circuit prohibits the
converter from operating when the line voltage is
too low to maintain the output voltage. The converter
will not start until the line voltage rises to approximately
16.5V and will shut down when the input voltage
drops to 15.5V. The one volt of hysteresis reduces
the possibility of line noise interfering with the
converter’s start-up and shut down.
2
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M3G2803R312T
Specifications
Absolute Maximum Ratings
Recommended Operating Conditions
Input voltage range
-0.5Vdc to +80Vdc
Input voltage range
+18Vdc to +60Vdc
+18Vdc to +50Vdc
0 to Max. Rated
-55°C to +125°C
-55°C to +70°C
Input voltage range1
Output power
Internally limited
Lead temperature
Operating temperature
Storage temperature
+300°C for 10 seconds
-55°C to +135°C
-55°C to +135°C
Output power
Operating temperature 2
Operating temperature 1
1 Meets derating per MIL-STD-975
2For operation at +125°C see table note 14
Electrical Performance Characteristics
Conditions
Limits
≤
≤
-55°C
T
+85°C
C
V
= 28V DC ± 5%, C = 0
Group A
Subgroup
1,2,3
IN
L
Parameter
Input Voltage
unless otherwiese specified
Min.
18
Nom. Max.
Unit
V
Note 2
28
50
IOUT = 100% Rated Load, Note 5
1
(main) 3.28
3.3
3.32
±11.60 ±12.00 ±12.40
(aux.)
Output Voltage ( V
)
OUT
V
2,3
(main) 3.24
3.36
±12.60
33.2
±11.40
0
(aux.)
1,2,3
1,2,3
V
V
IN = 18, 28, 50 Volts, Note 2
W
Output Power ( P
)
OUT
IN = 18, 28, 50 Volts, Notes 2,3,4,5
4000
±833
Output Current ( I
)
(main)
(aux.)
400
83
OUT
mA
V
IN = 18, 28, 50 Volts
I
OUT = 10, 50, 100% Rated Load, Note 5
1,2,3
1,2,3
Line Regulation ( VR
)
LINE
10
(main)
-10
mV
mV
120
(aux.) -120
IN = 18, 28, 50 Volts
OUT = 10, 50, 100% Rated Load, Notes 5,13
V
I
Load Regulation ( VR
)
LOAD
(main)
-30
30
400
(aux.) -400
V
IN = 18, 28, 50 Volts
IOUT = 2.5A to 1.0A and 2.5 to 4.0A
on main and ±half rated on aux. outputs
OUT = 0, Pin 3 open
Cross Regulation ( VR
)
1,2,3
1,2,3
-3.5
3.5
%
CROSS
I
80
5.0
mA
Input Current ( I
)
IN
Pin 3 shorted to Pin 2
VIN = 18, 28, 50 Volts
1,2,3
IOUT = 10, 50, 100% Rated Load, Notes 5, 6
Output Ripple ( V
)
RIP
20
30
30
60
(main)
(aux.)
mV
P-P
For Notes to Specifications, refer to page 5
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3
M3G2803R312T
Electrical Performance Characteristics ( continued )
Conditions
Limits
-55°C ≤ T ≤ +85°C
C
±
= 28V DC 5%, C = 0
L
V
Group A
Subgroup
1,2,3
IN
Parameter
Switching Frequency ( F
unless otherwise specified
Sync. Input (Pin 4) open
= 100 % Rated Load , Note 5
Min.
450
72
Nom. Max.
Unit
KHz
%
)
500
75
550
S
Efficiency ( E
Inhibit Input
)
I
OUT
1,2,3
FF
Open Circuit Voltage
Drive Current ( Sink )
Voltage Range
V
3.0
5.0
100
50
Note 1
µ
A
V
-0.5
Synchronization Input
Frequency Range
1,2,3
KHz
V
450
4.0
600
10
Pulse High Level
Pulse Low Level
-0.5
0.5
V
Ext. Clock on Sync. Input (Pin 4), Note 1
Pulse Transition Time
Pulse Duty Cycle
µ
%
V/ s
40
20
80
Current Limit Point
Expressed as a Percentage
of Full Rated Output Power
V
= 90% of Nominal, Note 5
1,2
3
135
150
OUT
%
W
Power Dissipation, Load Fault ( P
Output Response to
)
Short Circuit, Overload, Note 8
1,2,3
20
D
Step Load Changes ( V
Recovery Time,
)
4,5,6 Half Load to/from Full Load, Notes 5, 9
4,5,6 Half Load to/from Full Load, Notes 5, 9, 10
-300
-300
300
100
300
100
mV pk
µs
TLD
Step Load Changes ( T
Output Response to
Step Line Changes ( V
)
TLD
18V to/from 50V
IOUT = 100% Rated Load, Notes 1, 5, 10, 11
)
mV pk
TLN
Recovery Time,
18V to/from 50V
IOUT = 100% Rated Load, Notes 1, 5, 10, 11
Step Line Changes ( T
)
µ
s
TLN
Turn-on Response
No Load, Full Load, Notes 5, 12
(main)
500
750
5.0
Overshoot ( V
)
)
OS
mV
ms
4,5,6
(aux.)
Turn-on Delay ( T
1.0
DLY
I
OUT = 100% Rated Load,
Capacitive Load ( C )
L
1,2,3
No effect on DC Performance, Notes 1,5,7
(main)
1000
200
µF
dB
(Each aux.Output)
IOUT = 100% Rated Load,
DC to 50KHz, Notes 1, 5
Input to Output or Any Pin to Case
except Pin 10, test @ 500VDC
Line Rejection
Isolation
40
60
1
100
ΜΩ
Device Weight
MTBF
110
g
6
Hrs
MIL-HDBK-217F2, SF, 35°C
5 X 10
For Notes to Specifications, refer to page 5
4
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M3G2803R312T
Notes: Electrical Performance Characteristics
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. Although operation with no load is permissible, light loading on the main output may cause the output
voltage of the auxiliary outputs to drop out of regulation. It is therefore recommended that at least 200mA
or 20 percent of the total output power, whichever is greater, be taken from the main output.
4. Although operation with no load is permissible, heavy loading on the main output may cause the output
voltage of the auxiliary outputs to rise out of regulation. It is therefore recommended that at least 50mA
or 20 percent of the total output power, whichever is greater, be taken from the auxiliary (±12 volts)
output.
5. Unless otherwise specified, “Rated” load is 13.2W on the main output and 10W each on the auxiliary
outputs.
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 ≥ 10µs.
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 ≥ 100µs.
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 3) to the point where VOUT = 90% of nominal.
13. Load is varied for output under test while the remaining outputs are loaded at 50% of rated. Regulation
relative to output voltage at 50% rated load.
14. Although operation at temperatures between +85°C and +125°C, is guaranteed, no parametric limits are
specified.
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5
M3G2803R312T
Figure 1. Block Diagram
+AUX.
OUTPUT
13
12
EMI
FILTER
Vin
1
AUX.
RETURN
-AUX.
OUTPUT
11
7
+MAIN
+10.5V
UNDER VOLTAGE
LOCKOUT
& INHIBIT
BIAS
SUPPLY
INHIBIT
3
+5V
MAIN
RETURN
6
SHORT CIRCUIT
&
OVERLOAD
LEVEL
TRANSLATOR
& FET DRIVE
RETURN
2
+
+5V
+5V
EA
-
SYNC.
INPUT
4
5
RAMP
GENERATOR
+
SAMPLE
&
HOLD
OSCILLATOR
PWM
-
SYNC.
OUTPUT
CASE
GROUND
10
FEEDBACK
TRIGGER
6
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M3G2803R312T
Figure 2. Conducted Emissions, Positive Lead
100
90
80
70
60
50
40
30
20
10
0
CEO3 LIMIT
1E3
1E4
1E5
1E6
1E7
1E8
Frequency ( Hz )
Figure 3. Conducted Emissions, Return Lead
100
90
80
70
60
50
40
30
20
10
0
CEO3 LIMIT
1E3
1E4
1E5
1E6
Frequency ( Hz )
1E7
1E8
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7
M3G2803R312T
Figure 4. Conducted Emissions, Common Mode
100
90
80
70
60
50
40
30
20
10
CEO3 LIMIT
0
1E3
1E4
1E5
1E6
1E7
1E8
Frequency ( Hz )
Radiation Performance Characteristics
Test Inspection
Method
MIL-PRF-883, Method 1019
Min Typ
Unit
Total Ionizing Dose (Gamma) Operating bias applied during exposure,
Full Rated Load, VIN = 28V
200
300
Krads(Si)
Dose Rate (Gamma Dot)
MIL-STD-883, Method 1023
Temporary Saturation Operating bias applied during exposure, 1E8
Rads(Si)/sec
Neutrons/cm2
Full Rated Load, VIN = 28V
MIL-STD-883, Method 1017
Heavy Ions (LET)
Survival
4E10 1E11
8E12 1E13
Neutron Fluence
2
Single Event Effects
Operating bias applied during exposure,
Full Rated Load, VIN = 28V
MeV cm /mg
SEU, SEL, SEGR, SEB
>82
8
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M3G2803R312T
Mechanical Diagram
3.055 MAX.
0.080
Max.
0.500
2.00
R0.0625
4 places
0.30
0.50
0.20
13
12
11
10
9
1
2
0.200 Typ.
Non-
cum.
2.055
MAX.
1.400
Ref.
0.60
2.30
2.500
3
4
5
8
7
6
Pin
Ø0.040
0.45
1.10
0.260
FLANGE DETAIL
3.50
Ref.
0.25
0.25
0.14
0.475
MAX.
0.40
Tolerance : .XX
±0.01
.XXX ±0.005
Pin Designation
Pin #
Designation
+ Input
Pin #
Designation
1
2
3
4
5
6
7
8
N/C
N/C
Input Return
Inhibit
9
10
11
12
13
Case Ground
- Aux Output
Aux Output Return
+ Aux Output
Sync. Input
Sync. Output
Main Return
+ Main Output
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9
M3G2803R312T
Device Screening
Requirement
MIL-STD-883 Method
No Suffix
CK
EM
Temperature Range
Element Evaluation
Non-Destructive Bond Pull
Internal Visual
-55°C to +85°C
Class K
-55°C to +85°C
Class K
-55°C to +85°C
MIL-PRF-38534
2023
N/A
N/A
Yes
Yes
2017
Yes
Yes
Temperature Cycle
Constant Acceleration
PIND
1010
Cond C
Cond C
Cond C
3000 Gs
2001, Y1 Axis
2020
3000 Gs
Cond A
3000 Gs
Cond A
N/A
320 hrs @ 125°C
( 2 x 160 hrs )
-55°C, +25°C,
+85°C
320 hrs @ 125°C
( 2 x 160 hrs )
-55°C, +25°C,
+85°C
48 hrs @ 125°C
Burn-In
1015
Final Electrical
( Group A )
MIL-PRF-38534
& Specification
MIL-PRF-38534
1014
-55°C, +25°C,
+85°C
PDA
2%
2%
N/A
Seal, Fine and Gross
Radiographic
External Visual
Cond A, C
Yes
Cond A, C
Yes
Cond A
N/A
2012
2009
Yes
Yes
Notes:
Best commercial practice.
CK is DSCC class K 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.
Part Numbering
M3G 28 03R3 12 T /EM
Screening Level
(Please refer to Screening Table)
Model
Nominal Input
Voltage
No Suffix, CK, EM
Output
T = Triple
28 = 28V
Main Output
Voltage
03R3 = 3.3V
Auxiliary Output Voltage
12 = ±12V
WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245, Tel: (310) 252-7105
IR SAN JOSE: 2520Junction Avenue, San Jose, California 95134, Tel: (408) 434-5000
Visit us at www.irf.com for sales contact information.
Data and specifications subject to change without notice. 03/2010
10
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