M3G2805R2S [INFINEON]
DC-DC Regulated Power Supply Module, 1 Output, 40W, Hybrid, HERMETIC SEALED, CERAMIC PACKAGE-13;
| 型号： | M3G2805R2S |
| 厂家： | 
Infineon |
| 描述： | DC-DC Regulated Power Supply Module, 1 Output, 40W, Hybrid, HERMETIC SEALED, CERAMIC PACKAGE-13 |
| 文件： | 总11页 (文件大小：84K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
PD - 94534D
G-SERIES
28V Input, Single/Dual Output
ADVANCED ANALOG
HIGH RELIABILITY RADIATION
HARDENED DC/DC CONVERTER
Description
The G-Series of DC/DC converters are radiation hard-
ened, 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. Extensive documentation
including Radiation Susceptibility, Thermal, Stress,
Worst Case, Failure Modes and Effects analyses and
MTBF are available for customer review and included
with each order.
Features
n Total Dose > 200K Rad(Si),
typically usable to > 300K Rad(Si)
n SEE 82 MeV.cm2/mg
n Internal EMI filter; Converter Capable of
meeting MIL-STD-461C CE03 and CS01
n Low Weight, < 90 grams
n Magnetically Coupled Feedback
n 18V to 50V DC Input Range
n Up to 40W Output Power
n Single and Dual Output Models Include
3.3, 5, 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 that utilizes multilayer ceramic ca-
pacitors that are subjected to extensive lot screening
for optimum reliability. These converters are capable
of meeting the conducted emissions and conducted sus-
ceptibility requirements of MIL-STD-461C without any
additional components. External inhibit and synchroni-
zation input and output allow these converters to be
easily incorporated into larger power systems. They
are enclosed in a hermetic 3" x 2" x 0.4" package con-
structed of an Aluminum/Silicon-Carbide (Al/SiC) base
and an Alloy 48 ring frame and they weigh less than 90
grams. The package utilizes rugged ceramic feed-
through copper core pins and is sealed using parallel
seam welding.
n 100MΩ @ 500VDC Isolation
n Under-Voltage Lockout
n Short Circuit and Overload Protection
n Output Over Voltage Limiter
n Remote Sense on Single Output Models
n Adjustable Output Voltage for Duals
n Synchronization Input and Output
n External Inhibit
n > 5,000,000 Hour MTBF
Applications
n
n
n
Geostationary Earth Orbit Satellites (GEO)
Deep Space Satellites / Probes
Strategic Weapons and Communication
Systems
Full environmental screening includes temperature cy-
cling, constant acceleration, fine and gross leak, particle
impact noise detection (PIND), radiographic and 320
hours burn-in.
Non-flight versions of the G-Series converters are avail-
able for system development purposes. Variations in
electrical specifications and screening to meet
custom requirements can be accommodated.
www.irf.com
1
08/08/03
G-SERIES
An external inhibit port is provided to control con-
verter operation. The nominal threshold relative to
the input return (pin 2) is 1.4V. If 2.0 volts or greater
are applied to the Inhibit pin (pin 3) then the con-
verter 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.
Circuit Description
The G-Series converters utilize a single-ended for-
ward 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 volt-
age 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 fre-
quency. 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 allows the converter to meet the
conducted emissions requirements of MIL-STD-461C
on the input power leads. A two-stage output filter
reduces the typical output ripple to less than 20mV
peak-to-peak.
Remote sense is provided on the single output mod-
els to compensate for voltage drops in the intercon-
nects between the converter and the load. The out-
put voltage of dual output models can be adjusted
by a single external resistor.
Output current is limited under any load fault condi-
tion to approximately 125% of rated. An overload
condition causes the converter output to behave like
a constant current source with the output voltage drop-
ping below nominal. The converter will resume nor-
mal operation when the load current is reduced be-
low the current limit point. This protects the converter
from both overload and short circuit conditions. The
current limit point exhibits a slightly negative tem-
perature coefficient to reduce the possibility of ther-
mal runaway.
Design Methodology
The G-Series was developed using a proven con-
servative design methodology which includes se-
lecting 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 resis-
tors 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 Ra-
diation Susceptibility (TREE ), Worst Case, Stress,
Thermal, Failure Modes and Effects (FMEA) and Re-
liability (MTBF).
An under-voltage lockout circuit prohibits the con-
verter 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 16.5
volts and will shut down when the input voltage drops
below 15.5 volts. 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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G-SERIES
Absolute Maximum Ratings
Recommended Operating Conditions
Input voltage range -
Output power -
Lead temperature -
Operating temperature - -55°C to +135°C
Storage temperature - -55°C to +135°C
-0.5Vdc to +80Vdc
Internally limited
+300°C for 10 seconds
Input voltage range -
Input voltage range1 -
Output power -
18Vdc to +60Vdc
18Vdc to +50Vdc
0 to Max. Rated
Operating temperature2 - -55°C to +125°C
Operating temperature1 - -55°C to +70°C
1 Meets derating per MIL-STD-975
2For operation at +125°C see table note 13
Electrical Performance Characteristics
Conditions
-55°C ≤ TC ≤ +85°C
VIN = 28V DC ± 5%, CL = 0
unless otherwise specified
Limits
Nom
28
Group A
Parameter
Unit
Subgroup
Min
18
Max
50
Input Voltage
V
Output Voltage ( Vout )
M3G2803R3S
M3G2805S
1
1
1
1
1
1
1
1
I
OUT = 100% rated load
Note 4
3.28
4.98
3.30
5.00
3.32
5.02
V
V
V
V
V
V
V
V
M3G2805R2S
M3G2812S
5.17
5.20
5.23
11.95
14.94
±4.98
±11.95
±14.94
12.00
15.00
±5.00
±12.00
±15.00
12.05
15.06
±5.02
±12.05
±15.06
M3G2815S
M3G2805D
M3G2812D
M3G2815D
M3G2803R3S
M3G2805S
M3G2805R2S
M3G2812S
M3G2815S
M3G2805D
M3G2812D
M3G2815D
2,3
2,3
2,3
2,3
2,3
2,3
2,3
2,3
I
OUT = 100% rated load
Note 4
3.24
4.93
3.36
5.07
V
V
V
V
V
V
V
V
5.13
5.27
11.84
14.80
±4.93
±11.84
±14.80
12.16
15.20
±5.07
±12.16
±15.20
Output power ( POUT
M3G2803R3S
All Others
)
1,2,3
VIN = 18, 28, 50 Volts, Note 2
0
0
30
40
W
W
Output current ( IOUT
)
M3G2803R3S
M3G2805S
M3G2805R2S
M3G2812S
M3G2815S
M3G2805D
M3G2812D
M3G2815D
1,2,3
V
IN = 18, 28, 50 Volts, Note 2
0
0
0
0
0
0
0
0
9.1
8
A
A
A
A
A
A
A
A
7.7
3.34
2.67
6.4
Either Output, Note 3
Either Output, Note 3
Either Output, Note 3
2.67
2.14
Line regulation ( VRLINE
)
1,2,3
1,2,3
VIN = 18, 28, 50 Volts
-10
10
mV
%
I
OUT = 0, 50%, 100% rated, Note 4
Load regulation ( VRLOAD
)
IOUT = 0, 50%, 100% rated, Note 4
IN = 18, 28, 50 Volts
-0.5
0.5
V
Cross regulation ( VRCROSS
M3G2805D
)
1,2,3
Duals only, Note 5
VIN = 18, 28, 50 Volts
-5.0
-3.0
-3.0
5.0
3.0
3.0
%
%
%
M3G2812D
M3G2815D
For Notes to Specifications, refer to page 5
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3
G-SERIES
Electrical Performance Characteristics ( continued )
Conditions
Limits
Nom
40
Group A
-55°C ≤ TC ≤ +85°C
VIN = 28V DC ± 5%, CL = 0
Parameter
Unit
Subgroup
Min
Max
80
unless otherwise specified
Input current ( IIN
)
1,2,3
1,2,3
1,2,3
IOUT = 0, Pin 3 open
mA
Pin 3 shorted to pin 2
2
5
Switching frequency ( FS
Output ripple ( VRIP
)
Sync. Input (Pin 4) open
450
500
550
KHz
)
M3G2803R3S
M3G2805S
M3G2805R2S
M3G2812S
M3G2815S
M3G2805D
M3G2812D
M3G2815D
I
OUT = 100% rated load
Notes 4, 6
15
20
25
25
25
20
30
30
35
50
50
60
80
50
60
60
mV p-p
mV p-p
mV p-p
mV p-p
mV p-p
mV p-p
mV p-p
mV p-p
Efficiency ( EFF
)
M3G2803R3S
M3G2805S
M3G2805R2S
M3G2812S
M3G2815S
M3G2805D
M3G2812D
M3G2815D
1
I
OUT = 100% rated load
Note 4
68
75
75
75
77
75
76
77
72
77
77
78
80
78
79
80
%
%
%
%
%
%
%
%
Inhibit Input
open circuit voltage
drive current ( sink )
voltage range
1,2,3
Note 1
3.0
5.0
100
50
V
µA
V
-0.5
Synchronization Input
frequency range
pulse high level
pulse low level
1,2,3
Ext. Clock on Sync. Input (Pin 4)
Note 1
450
4.0
-0.5
40
600
10.0
0.5
Khz
V
V
pulse transition time
pulse duty cycle
V/µS
%
20
80
Current Limit Point
1,2,3
Vout = 90% of Nominal, Note 4
125
135
%
Expressed as a percentage
of full rated load current
Power dissipation, load fault (PD)
Output response to
1,2,3
4,5,6
Short Circuit, Overload, Note 8
14
20
W
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
50
200
µS
step load changes (TTLD
)
Output response to
18V to/from 50V
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 50V
step line changes (TTLN
)
IOUT = 100% rated load, Notes 1,4,10,11
50
µS
Turn-on Response
Overshoot (VOS
Turn-on Delay (TDLY
)
No Load, Full Load
Notes 4,12
1
10
5
%
)
mS
For Notes to Specifications, refer to page 5
4
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G-SERIES
Electrical Performance Characteristics ( continued )
Conditions
Limits
Nom
Group A
-55°C ≤ TC ≤ +85°C
VIN = 28V DC ± 5%, CL = 0
Parameter
Unit
Subgroup
Min
Max
unless otherwise specified
Capacitive Load (CL)
M3G2803R3S
M3G2805S
1
IOUT = 100% rated load
No effect on DC performance
Notes 1, 4, 7
2200
1000
1000
180
120
500
90
µF
µF
µF
µF
µF
µF
µF
µF
M3G2805R2S
M3G2812S
M3G2815S
M3G2805D
Each output on duals
M3G2812D
M3G2815D
60
Line Rejection
Isolation
1
1
IOUT = 100% rated load
DC to 50KHz, Notes 1, 4
40
60
dB
Input to Output or Any Pin to Case
except pin 6, test @ 500VDC
100
MΩ
Device Weight
MTBF
90
grams
Hours
6
5.0 x 10
MIL-HDBK-217F2, SF, 35°C
Table I. 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. Limit represents 80% of total rated output current. To achieve rated output power, the remaining 20% of
the total rated output current must be provided by the other output.
4. Load current 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 3) to the point where VOUT = 90% of nominal.
13. For operation at temperatures between +85°C and +125°C, derate the maximum input voltage linearly from
60V to 40V and the maximum output power linearly from 100% to 75%.
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5
G-SERIES
Radiation Performance Characteristics
Test
Conditions
Min
Typ
Unit
MIL-STD-883, Method 1019
Total Ionizing Dose ( Gamma ) Operating bias applied during exposure,
Full Rated Load, VIN = 28V
KRads
(Si)
200
1000
Dose Rate ( Gamma Dot )
Temporary Saturation
Survival
MIL-STD-883, Method 1023
Operating bias applied during exposure,
Full Rated Load, VIN = 28V
1E8
Rads (Si)/sec
4E10
1E11
1E13
Neutrons
2
/cm
Neutron Fluence
MIL-STD-883, Method 1017
8E12
Heavy ions (LET)
2
Single Event Effects
MeVcm
Operating bias applied during exposure,
Full Rated Load, VIN = 28V
82
SEU, SEL, SEGR, SEB
/mg
Device Screening
Test Inspection
Element Evaluation
Nondestructive Bond Pull
Internal Visual
Method
Condition
MIL-PRF-38534 Space Requirement
MIL-STD-883, Method 2023
MIL-STD-883, Method 2017
MIL-STD-883, Method 1010
MIL-STD-883, Method 2001
MIL-STD-883, Method 2020
Temperature Cycling
Constant Acceleration
PIND
C
A, Y1 axis only
A
Electrical
In accordance with
device specification
Burn-in
MIL-STD-883, Method 1015
320 Hours
Final Electrical ( Group A )
In accordance with
device specification
Seal
Fine Leak
Gross Leak
A1
C
MIL-STD-883, Method 1014
MIL-STD-883, Method 2012
MIL-STD-883, Method 2009
Radiographic
External Visual
6
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G-SERIES
Block Diagram - Single Output
EMI
FILTER
Vin
1
13
+OUTPUT
+10.5V
12
RETURN
UNDER VOLTAGE
LOCKOUT
& INHIBIT
BIAS
SUPPLY
INHIBIT
3
+5V
SHORT CIRCUIT
&
OVERLOAD
LEVEL
TRANSLATOR
& FET DRIVE
RETURN
2
10
9
+SENSE
-SENSE
+
-
+
RS
+5V
+5V
EA
-
SYNC.
INPUT
4
5
RAMP
GENERATOR
+
SAMPLE
&
HOLD
OSCILLATOR
PWM
SYNC.
OUTPUT
-
CASE
GROUND
6
FEEDBACK
TRIGGER
Block Diagram - Dual Output
EMI
FILTER
Vin
1
13
12
11
+OUTPUT
RETURN
-OUTPUT
+10.5V
UNDER VOLTAGE
LOCKOUT
& INHIBIT
BIAS
SUPPLY
INHIBIT
3
+5V
SHORT CIRCUIT
&
OVERLOAD
LEVEL
TRANSLATOR
& FET DRIVE
RETURN
2
+
-
+5V
+5V
8
ADJUST
-
EA
+
SYNC.
INPUT
4
5
RAMP
GENERATOR
+
SAMPLE
&
HOLD
OSCILLATOR
PWM
SYNC.
OUTPUT
-
CASE
GROUND
6
FEEDBACK
TRIGGER
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7
G-SERIES
Conducted Emissions, Positive Lead
100
90
80
70
60
50
40
30
20
10
CEO3 LIMIT
0
1E3
1E4
1E5
1E6
Frequency ( Hz )
1E7
1E8
Line Rejection, 28Vdc + 8Vacp-p
0
-20
-40
-60
-80
-100
-120
1E2
1E3
1E4
1E5
Frequency ( Hz )
8
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G-SERIES
M3G2803R3S Efficiency
80
70
60
50
40
Vin=18V
Vin=28V
Vin=50V
0
5
10
15
20
25
30
35
Output Power ( Watts )
M3G2805S Efficiency
90
80
70
60
50
40
Vin=18V
Vin=28V
Vin=50V
0
5
10
15
20
25
30
35
40
Output Power ( Watts )
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9
G-SERIES
M3G2812S Efficiency
90
80
70
Vin=18V
60
50
40
Vin=28V
Vin=50V
0
5
10
15
20
25
30
35
40
Output Power ( Watts )
10
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G-SERIES
Mechanical Diagram
3.00
0.080
Max.
0.500
2.000
R0.0625
4 places
0.300
0.500
0.200
13
12
11
1
2
0.200 Typ.
Non-cum.
10
1.400
Ref.
0.600
2.000 2.300 2.500
9
3
4
5
8
7
6
Pin
Ø0.040
0.450
1.100
0.260
3.50
Ref.
0.25
Tolerance : .XX
±0.01
.XXX ±0.005
0.445 Max
Pin Designation (Single/Dual)
Part Number
M3G 28 05 S
Pin
Signal
Pin
Signal
Pin 1
Pin 2
Pin 3
Pin 4
Pin 5
Pin 6
Pin 7
+V Input
Pin 8
Pin 9
Pin 10
Pin 11
Pin 12
Pin 13
NC / Adjust
-Sense / NC
+Sense / NC
NC / -Output
Output Return
+Output
Outputs
Model
S = Single
Input Return
Inhibit
D = Dual
Nominal Input
Voltage
Nominal Output Voltages
03R3 = 3.3V, 05R2 = 5.2V
05 = 5V, 12 = 12V, 15 = 15V
Sync. Input
Sync. Output
Case Ground
NC
28 = 28V
WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245, Tel: (310) 322 3331
ADVANCED ANALOG: 2270 Martin Av., Santa Clara, California 95050, Tel: (408) 727-0500
Visit us at www.irf.com for sales contact information.
Data and specifications subject to change without notice. 08/03
www.irf.com
11
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