M3G5003R315TCKC [INFINEON]
HYBRID-HIGH RELIABILITY RADIATION HARDENED DC-DC CONVERTER;
| 型号： | M3G5003R315TCKC |
| 厂家： | 
Infineon |
| 描述： | HYBRID-HIGH RELIABILITY RADIATION HARDENED DC-DC CONVERTER DC-DC转换器 |
| 文件： | 总10页 (文件大小：157K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
PD-94559M
M3G-SERIES
HYBRID-HIGH RELIABILITY
RADIATION HARDENED
DC-DC CONVERTER
50V Input, Triple Output
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.
M3G
Features
n Total Dose > 200 krad(Si),
typically usable to > 300 krad(Si)
n SEE Hardened up to 82 MeV.cm2/mg
n Low Weight, < 110 grams
n Low Input & Output Noise
n Magnetically Coupled Feedback
n 38V to 60V DC Input Range
n Up to 40W Output Power
The converters incorporate a fixed frequency single
ended forward topology with magnetic feedback and
an internal EMI filter that utilizes multilayer ceramic
capacitors that are subjected to extensive lot screening
for optimum reliability. These converters are capable of
meeting the conducted emissions and conducted
susceptibility requirements of MIL-STD-461C without
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 Triple Output Models Include
+5V and ±12V or ±15V
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 DLA
Land and Maritime 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.
www.irf.com
1
09/12/12
M3G-SERIES
(50V Input, Triple Output)
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 2.0 volts or greater are applied
to the Inhibit pin (pin 3) then the converter will
operate normally. Avoltage 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 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 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 (+5 volt) output is regulated by the control
loop and typically exhibits better than 1% regulation.
The auxiliary (±12 volt or ±15 volt) 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 except for the
CDR type ceramic capacitors, a capacitor with 50V
rating is used for in-circuit voltage stress of less than
10V. 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
Output current 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.
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).
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
36 volts and will shut down when the input voltage
drops below 34 volts. This two volts of hysteresis
reduces the possibility of line noise interfering with
the converter’s start-up and shut down.
2
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M3G-SERIES
(50V Input, Triple Output)
Specifications
Absolute Maximum Ratings
Recommended Operating Conditions
Input voltage range
Output power
-0.5Vdc to +80Vdc
Input voltage range
+38Vdc to +60Vdc
0 to Max. Rated
-55°C to +125°C
Internally limited
300°C for 10 seconds
-55°C to +135°C
-55°C to +135°C
Output power
Operating case temperature 1
Lead temperature
Operating temperature
Storage temperature
1For operation at +125°C see table note 15
Electrical Performance Characteristics
Parameter
Group A
Subgroup
Conditions
-55°C ≤ TC ≤ +85°C
IN = 28V DC ± 5%, CL = 0
Limits
Nom
Unit
V
V
Min
38
Max
60
unless otherwise specified
Input Voltage
Output Voltage ( Vout )
1, 2, 3
1
Note 2
50
(main)
IOUT = 100% rated load, Note 5
IOUT = 100% rated load, Note 5
4.98
5.00
5.02
M3G500512T (aux.)
M3G500515T (aux.)
±11.50 ±11.80 ±12.10
±14.60 ±14.90 ±15.20
V
(main)
M3G500512T (aux.)
M3G500515T (aux.)
2, 3
4.93
±11.30
±14.40
5.07
±12.30
±15.40
Output power ( POUT
Output current ( IOUT
)
)
1, 2, 3
VIN = 38, 50, 60 Volts, Note 2
0
40
W
(main) 1, 2, 3
M3G500512T (aux.)
M3G500515T (aux.)
VIN = 38, 50, 60 Volts, Notes 2,3,4,5
400
±83
±67
4000
±833
±667
mA
Line regulation ( VRLINE
)
1, 2, 3
IOUT = 10%, 50%, 100% rated
VIN = 38, 50, 60 Volts
Note 5
-10
-120
-150
10
120
150
(main)
M3G500512T (aux.)
M3G500515T (aux.)
mV
Load regulation ( VRLOAD
)
1, 2, 3
IOUT = 10%, 50%, 100% rated
-50
-400
-500
50
400
500
(main)
M3G500512T (aux.)
M3G500515T (aux.)
V
IN = 38, 50, 60 Volts
Notes 5,13
mV
%
Cross regulation ( VRCROSS
)
(main) 1, 2, 3
VIN = 38, 50, 60 Volts
IOUT = 2.5A to 1A and 2.5 to 4A on main
output and ±half rated on aux. outputs
M3G500512T (aux.)
M3G500515T (aux.)
-3.5
-3.0
3.5
3.0
For Notes to Electrical Performance Characterstics Table, refer to page 5
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3
M3G-SERIES
(50V Input, Triple Output)
Electrical Performance Characteristics ( continued )
Conditions
Limits
Nom
≤
≤
-55°C TC +85°C
IN = 28V DC ± 5%, CL = 0
Parameter
Group A
V
Subgroup
Min
Max
80
Unit
mA
unless otherwise specified
IOUT = 0, Pin 3 open
Input current ( IIN
)
1, 2, 3
1, 2, 3
Pin 3 shorted to pin 2
5.0
Output ripple ( VRIP
)
(main)
M3G500512T (aux.)
M3G500515T (aux.)
V
IN = 38, 50, 60 Volts
25
30
30
50
60
75
I
OUT = 100% rated load, Notes 5, 6
mV p-p
Switching frequency ( FS
)
1, 2, 3
1, 2, 3
Sync. Input (Pin 4) open
450
75
500
79
550
KHz
%
Efficiency ( Eff)
IOUT = 100% rated load
Note 5
Inhibit Input
V
open circuit voltage
drive current ( sink )
voltage range
Note 1
3.0
5.0
100
50
µ
A
-0.5
V
Synchronization Input
frequency range
Ext. Clock on Sync. Input (Pin 4)
Note 1
450
4.0
-0.5
40
600
10
0.5
KHz
V
V
pulse high level
pulse low level
pulse transition time
pulse duty cycle
µ
V/ s
20
80
%
Current Limit Point
Expressed as a percentage
of full rated output power
1, 2, 3
Vout = 90% of Nominal, Note 5
Short Circuit, Overload, Note 8
135
%
Power dissipation, load fault (PD)
Output response to
1, 2, 3
4, 5, 6
20
W
Half Load to/from Full Load, Notes 5,9
-300
-300
300
mV pk
step load changes (VTLD
)
Recovery time,
step load changes (TTLD
)
4, 5, 6
Half Load to/from Full Load, Note 5,9,10
100
300
µ
s
Output response to
18V to/from 50V
mV pk
step line changes (VTLN
Recovery time,
)
IOUT = 100% rated load, Notes 1,5,11
18V to/from 50V
IOUT = 100% rated load, Notes 1,5,10,11
100
µ
s
step line changes (TTLN
)
For Notes to Electrical Performance Characterstics Table, refer to page 5
4
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M3G-SERIES
(50V Input, Triple Output)
Electrical Performance Characteristics ( continued )
Conditions
-55°C ≤ TC ≤ +85°C
IN = 28V DC ± 5%, CL = 0
Limits
Group A
Subgroup
Parameter
V
Unit
unless otherwise specified
Min
1.0
Nom
Max
Turn-on Response
Overshoot (VOS
(main)
)
4, 5, 6
No Load, Full Load
Notes 5,12
500
750
1000
M3G500512T (aux.)
M3G500515T (aux.)
mV
Turn-on Delay (TDLY
)
5.0
ms
Capacitive Load (CL)
(main)
I
OUT = 100% rated load, No effect on DC
1000
200
µF
(Each aux. output)
performance, Notes 1, 5, 7
Line Rejection
Isolation
I
OUT = 100% rated load
40
60
dB
DC to 50KHz, Notes 1, 5
MΩ
1
Input to Output or Any Pin to Case
except pin 10, test @ 500VDC
100
Device Weight
MTBF
110
g
MIL-HDBK-217F2, SF, 35ºC
5 x 106
Hrs
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.
3.
Parameter verified during line and load regulation tests.
Although operation with no load is permissible, light loading on the main (+5 volt) output may cause the output voltage of the
auxiliary outputs(±12 volt or ±15 volt) to drop out of regulation. It is therefore recommended that at least 200 mA or 20 percent of
the total output power, whichever is greater, be taken from the main (+5 volt) output.
4.
5.
Although operation with no load is permissible, heavy loading on the main (+5 volt) output may cause the output voltage of the
auxiliary outputs(±12 volt or ±15 volt) to rise out of regulation. It is therefore recommended that at least 50 mA or 20 percent of
the total output power, whichever is greater, be taken from the auxiliary (±12 volt or ±15 volt) outputs.
Unless otherwise specified, “Rated” load is 20W on the main (+5 volt) output and 10 watts each on the auxiliary (±12 volt or
±15 volt) outputs. Load currents of up to 5A and ±1A on the main and auxiliary outputs respectively are acceptable as long as
the total output power does not to exceed 40 watts.
6. Guaranteed for a D.C. to 20MHz bandwidth. Tested using a 20KHz to 10MHz bandwidth.
7.
8.
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.
9.
Overload power dissipation is defined as the device power dissipation with the load set such that VOUT = 90% of nominal.
10. Load step transition time ³ 10 µs.
11. Recovery time is measured from the initiation of the transient to where VOUT has returned to within ±1% of its steady state value.
12. Line step transition time ³ 100 µs.
13. 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(pin3 to
the point where VOUT = 90% of nominal.
14. 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.
15. Although operation at temperatures between +85°C and +125°C is guaranteed, no parametric limits are
specified.
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5
M3G-SERIES
(50V Input, Triple Output)
Radiation Performance Characteristics
Test Inspection
Method
Min
Typ
Unit
MIL-PRF-883, Method 1019
Total Ionizing Dose (Gamma)
Operating bias applied during exposure,
Full Rated Load, V = 50V
200
300
Krads(Si)
IN
Dose Rate (Gamma Dot)
Temporary Saturation
Survival
MIL-STD-883, Method 1023
Operating bias applied during exposure,
1E8
4E10
8E12
Rads(Si)/sec
Neutrons/cm2
Full Rated Load, V = 50V
IN
1E11
1E13
Neutron Fluence
MIL-STD-883, Method 1017
Heavy Ions (LET)
Single Event Effects
Operating bias applied during exposure,
2
Full Rated Load, V = 50V
SEU, SEL, SEGR, SEB
82
IN
MeV cm /mg
Test lab: Brookhaven National Laboratory,
Tandem Van de Graaff Generator
International Rectifier currently does not have a DLA Land and Maritime certified Radiation Hardness
Assurance Program.
Figure 1. Block Diagram
+AUX.
OUTPUT
13
12
EMI
FILTER
Vin
1
AUX.
RETURN
-AUX.
11
7
OUTPUT
+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
-
REF
SYNC.
INPUT
4
5
RAMP
GENERATOR
+
SAMPLE
&
HOLD
OSCILLATOR
PWM
-
SYNC.
OUTPUT
CASE
GROUND
10
FEEDBACK
TRIGGER
6
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M3G-SERIES
(50V Input, Triple Output)
±12V Load Regulation vs 5V Load
Figure 2.
14
13.5
13
12.5
12
5V load = 4A
5V load = 2A
11.5
11
5V load = 0.4A
10.5
10
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
±12V Load Current ( Amps each )
±15V Load Regulation vs 5V Load
Figure 3.
18
17.5
17
16.5
16
15.5
15
5V load = 4A
14.5
14
5V load = 2A
5V load = 0.4A
13.5
13
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
±15V Load Current ( Amps each )
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7
M3G-SERIES
(50V Input, Triple Output)
Application Note:
A) Attachment of the Converter
The following procedure is recommended for mounting the converter for optimum cooling and to circumvent
any potential damage to the converter.
Ensure that flatness of the plate where M3G converter to be mounted is no greater than 0.003” per linear inch.
It is recommended that a thermally conductive gasket is used to promote the thermal transfer and to fill any
voids existing between the two surfaces. IR recommends Sil-Pad 2000 with the thickness of 0.010". The
shape of the gasket should match the footprint of the converter including the mounting flanges. The gasket
is available from IR. The M3G-series converter requires either M3 or 4-40 size screws for attachment
purposes.
The procedure for mounting the converter is as follows:
1. Check the mounting surfaces and remove foreign material, burrs if any or anything that may
interfere with the attachment of the converter.
2. Place the gasket on the surface reserved for the converter and line it up with the mounting holes.
3. Place the converter on the gasket and line both up with mounting holes.
4. Install screws using appropriate washers and tighten by hand (~ 4 in·oz) in the sequence shown below.
5. Tighten the screws with an appropriate torque driver. Torque the screws up to 6 in·lb in the sequence
shown above.
8
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M3G-SERIES
(50V Input, Triple Output)
Mechanical Diagram
3.055 MAX.
2.00
0.080
Max.
0.500
R0.0625
4 places
0.30
0.50
0.20
13
12
11
1
2
0.200 Typ.
Non-
cum.
10
9
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 (Triple)
Pin #
Designation
Pin #
Designation
1
2
3
4
5
6
7
+ Input
8
NC
NC
Input Return
Inhibit
9
10
11
12
13
Case Ground
- Aux. Output
Sync. Input
Sync. Output
Main Return
+ Main Output
Aux. Output Return
+Aux. Output
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9
M3G-SERIES
(50V Input, Triple Output)
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
Yes
-55°C to +85°C
MIL-PRF-38534
2023
N/A
N/A
Yes
2017
Yes
Yes
Temperature Cycle
Constant Acceleration
PIND
1010
Cond C
Cond C
3000 Gs
Cond A
Cond C
3000 Gs
N/A
2001, Y1 Axis
2020
3000 Gs
Cond A
320 hrs @ 125°C
( 2 x 160 hrs )
-55°C, +25°C,
+85°C
320 hrs @ 125°C 48 hrs @ 125°C
( 2 x 160 hrs )
Burn-In
1015
Final Electrical
( Group A )
MIL-PRF-38534
& Specification
MIL-PRF-38534
1014
-55°C, +25°C,
+85°C
2%
-55°C, +25°C,
+85°C
PDA
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 a DLA Land and Maritime (formerly DSCC) part marking used to designate a Class K compliant hybrid.
The CK marking does not indicate the hybrid is radiation certified.
No Suffix is a radiation rated device but not available as a DLA Land and Maritime qualified SMD per MIL-PRF-38534.
International Rectifier currently does not have a DLA Land and Maritime certified Radiation Hardness Assurance Program.
Part Numbering
M3G 50 05 15 T /XX X
Lead Finish for CK only
C = Gold Plated
A = Solder Dipped
Model
Nominal Input
Voltage
Blank for No Suffix and EM
50 = 50V
Lead Finish for No Suffix = Gold Plated
Lead Finish for EM is Gold Plated or
Solder Dipped depending on availability
Main Output
Voltage
03R3 = 3.3V
05 = 5V
Screening Level
(Please refer to Screening Table)
12 = 12V
15 =15V
No Suffix, CK, EM
Output
T = Triple
Auxiliary Output Voltage
05 = ± 5V, 12 = ± 12V
15 = ± 15V
WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245, Tel: (310) 252-7105
IR SAN JOSE: 2520 Junction 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. 09/2012
10
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