IRF M3G2803R3SCKA Hybrid - high reliability radiation hardened dc-dc converter Datasheet

PD-94534Q
M3G-SERIES
HYBRID - HIGH RELIABILITY
RADIATION HARDENED
DC-DC CONVERTER
28V Input, Single/Dual 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.
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
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.
Manufactured in a facility fully qualified to MIL-PRF38534, these converters are fabricated utilizing DLA Land
and Maritime qualified processes. For available
screening options, refer to device screening table in the
data sheet.
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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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 CE03
n Low Weight, < 110 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, 5.2, 12, 15, ±5, ±7, ±12 and ±15V
n High Efficiency - to 82%
n -55°C to +125°C Operating Temperature Range
n 100MΩ @ 500VDC Isolation
n Under-Voltage Lockout
n Short Circuit and Overload Protection
n Remote Sense on Single Output Models
n Adjustable Output Voltage for Duals
n Synchronization Input and Output
n Output Over Voltage Limiter
n External Inhibit
n > 5,000,000 Hour MTBF
n Standard Microcircuit Drawings Available
Applications
n
n
n
Geostationary Earth Orbit Satellites (GEO)
Deep Space Satellites / Probes
Strategic Weapons and Communication System
1
09/11/12
M3G-SERIES
(28V Input, Single/Dual Output)
Circuit Description
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.
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.
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.
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
16.5 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
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. 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.
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.
Remote sense is provided on the single output
models to compensate for voltage drops in the
interconnects between the converter and the load.
The output voltage of dual output models can be
adjusted by a single external resistor.
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
eliminates the possibility of SEGR and SEB. A
magnetic feedback circuit is utilized instead of optocouplers 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).
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M3G-SERIES
(28V Input, Single/Dual Output)
Specifications
Absolute Maximum Ratings
Recommended Operating Conditions
Input voltage range
Output power
Lead temperature
Operating temperature
Storage temperature
Input voltage range
-0.5Vdc to +80Vdc
Internally limited
+300°C for 10 seconds
-55°C to +135°C
-55°C to +135°C
+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
2
Operating temperature
1
Operating temperature
1
Meets derating per MIL-STD-975
For operation at +125°C see table note 13
2
Electrical Performance Characteristics
Parameter
Group A
Subgroup
Conditions
-55°C ≤ TC ≤ +85°C
VIN = 28V DC ± 5%, CL = 0
unless otherwise specified
Input Voltage
Output Voltage ( Vout )
M3G2803R3S
M3G2805S
M3G2805R2S
M3G2812S
M3G2815S
M3G2805D
M3G2807D
M3G2812D
M3G2815D
M3G2803R3S
M3G2805S
M3G2805R2S
M3G2812S
M3G2815S
M3G2805D
M3G2807D
M3G2812D
M3G2815D
Output power ( POUT )
M3G2803R3S
All Others
Output current ( IOUT )
M3G2803R3S
M3G2805S
M3G2805R2S
M3G2812S
M3G2815S
M3G2805D
M3G2807D
M3G2812D
M3G2815D
1
1
1
1
1
1
1
1
1
2,3
2,3
2,3
2,3
2,3
2.3
2,3
2,3
2,3
IOUT = 100% rated load
Note 4
IOUT = 100% rated load
Note 4
Limits
Unit
Min
Nom
Max
18
28
50
3.30
5.00
5.20
12.00
15.00
±5.00
±7.00
±12.00
±15.00
3.32
5.02
5.23
12.05
15.06
±5.02
±7.03
±12.05
±15.06
3.28
4.98
5.17
11.95
14.94
±4.98
±6.97
±11.95
±14.94
3.24
4.93
5.13
11.84
14.80
±4.93
±6.90
±11.84
±14.80
3.36
5.07
5.27
12.16
15.20
±5.07
±7.10
±12.16
±15.20
1,2,3
VIN = 18, 28, 50 Volts, Note 2
0
0
30
40
1,2,3
VIN = 18, 28, 50 Volts, Note 2
0
0
0
0
0
0
0
0
0
9.10
8.00
7.70
3.34
2.67
6.40
4.57
2.67
2.14
Either Output, Note 3
Either Output, Note 3
Either Output, Note 3
Either Output, Note 3
V
V
W
A
Line regulation ( VRLINE )
1,2,3
VIN = 18, 28, 50 Volts
IOUT = 0, 50%, 100% rated, Note 4
-10
10
mV
Load regulation ( VRLOAD )
1,2,3
IOUT = 0, 50%, 100% rated, Note 4
VIN = 18, 28, 50 Volts
-0.5
0.5
%
1,2,3
Duals only, Note 5
VIN = 18, 28, 50 Volts
Cross regulation ( VRCROSS )
M3G2805D
M3G2807D
M3G2812D
M3G2815D
-5.0
-5.0
-3.0
-3.0
5.0
5.0
3.0
3.0
%
For Notes to Specifications, refer to page 5
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3
M3G-SERIES
(28V Input, Single/Dual Output)
Electrical Performance Characteristics
( continued )
Group A
Subgroup
Conditions
-55°C ≤ TC ≤ +85°C
VIN = 28V DC ± 5%, CL = 0
unless otherwise specified
Input current ( IIN )
1,2,3
IOUT = 0, Pin 3 open
Switching frequency ( FS )
1,2,3
Sync. Input (Pin 4) open
1,2,3
IOUT = 100% rated load
Notes 4, 6
Parameter
Limits
Unit
Min
Pin 3 shorted to pin 2
Output ripple ( VRIP )
M3G2803R3S
M3G2805S
M3G2805R2S
M3G2812S
M3G2815S
M3G2805D
M3G2807D
M3G2812D
M3G2815D
Efficiency ( EFF )
M3G2803R3S
M3G2805S
M3G2805R2S
M3G2812S
M3G2815S
M3G2805D
M3G2807D
M3G2812D
M3G2815D
1
IOUT = 100% rated load
Note 4
Inhibit Input
open circuit voltage
drive current ( sink )
voltage range
Note 1
Ext. Clock on Sync. Input (Pin 4)
Note 1
1,2,3
Vout = 90% of Nominal,
Note 4
Power dissipation, load fault (PD)
1,2,3
Short Circuit, Overload, Note 8
Output response to
step load changes (VTLD)
4,5,6
Half Load to/from Full Load,
Notes 4, 9
Recovery time,
step load changes (TTLD)
4,5,6
Half Load to/from Full Load,
Notes 4, 9,10
Output response to
step line changes (VTLN)
18V to/from 50V
IOUT = 100% rated load, Notes 1,4,11
Recovery time,
step line changes (TTLN)
18V to/from 50V
IOUT = 100% rated load, Notes 1,4,10,11
Turn-on Response
Overshoot (VOS)
Turn-on Delay (TDLY)
68
75
75
75
77
75
75
76
77
Max
40
80
4,5,6
No Load, Full Load
Notes 4,12
2.0
5.0
550
KHz
15
20
25
25
25
20
25
30
30
35
50
50
60
80
50
55
60
60
mV p-p
72
77
77
78
80
78
78
79
80
3.0
450
4.0
-0.5
40
20
125
14
-300
50
-300
50
1.0
mA
500
-0.5
Synchronization Input
frequency range
pulse high level
pulse low level
pulse transition time
pulse duty cycle
Current Limit Point
Expressed as a percentage
of full rated load current
450
Nom
%
5.0
100
50
V
µA
V
600
10.0
0.5
80
KHz
V
V
V/µs
%
135
%
20
W
300
mV pk
200
µs
300
mV pk
200
µs
10
5.0
%
ms
For Notes to Specifications, refer to page 5
4
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M3G-SERIES
(28V Input, Single/Dual Output)
Electrical Performance Characteristics
Parameter
Group A
Subgroup
Capacitive Load (CL)
M3G2803R3S
M3G2805S
M3G2805R2S
M3G2812S
M3G2815S
M3G2805D
M3G2807D
M3G2812D
M3G2815D
Conditions
-55°C ≤ TC ≤ +85°C
VIN = 28V DC ± 5%, CL = 0
unless otherwise specified
Limits
Unit
Min
IOUT = 100% rated load
DC to 50KHz, Notes 1, 4
Max
2200
1000
1000
180
120
500
300
90
60
Each output on duals
1
40
Input to Output or Any Pin to Case
except pin 6, test @ 500VDC
100
MIL-HDBK-217F2, SF, 35°C
5.0 x 106
Device Weight
MTBF
Nom
IOUT = 100% rated load
No effect on DC performance
Notes 1, 4, 7
Line Rejection
Isolation
( continued )
60
µF
dB
MΩ
110
g
Hrs
Notes: Electrical Performance Characteristics
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
Parameter is tested as part of design characterization or after design changes. Thereafter, parameter shall
be guaranteed to the limits specified.
Parameter verified during line and load regulation tests.
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.
Load current split equally between outputs on dual output models.
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.
Guaranteed for a D.C. to 20MHz bandwidth. Tested using a 20KHz to 10MHz bandwidth.
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.
Overload power dissipation is defined as the device power dissipation with the load set such that VOUT =
90% of nominal.
Load step transition time ≥ 10 µs.
Recovery time is measured from the initiation of the transient to where VOUT has returned to within ±1% of
its steady state value.
Line step transition time ≥ 100 µs.
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.
Although operation at temperatures between +85°C and +125°C is guaranteed, no parametric limits are
specified.
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5
M3G-SERIES
(28V Input, Single/Dual Output)
Fig 1. Block Diagram - Single Output
Vin
1
EMI
FILTER
UNDER VOLTAGE
LOCKOUT
& INHIBIT
INHIBIT 3
+10.5V
BIAS
SUPPLY
+5V
13
+OUTPUT
12
RETURN
10
+SENSE
9
-SENSE
6
CASE
GROUND
SHORT CIRCUIT
&
OVERLOAD
LEVEL
TRANSLATOR
& FET DRIVE
RETURN 2
+
+5V
+
+5V
RS
-
EA
-
SYNC.
4
INPUT
+
OSCILLATOR
PWM
-
SYNC.
5
OUTPUT
RAMP
GENERATOR
SAMPLE
&
HOLD
FEEDBACK
TRIGGER
Fig 2. Block Diagram - Dual Output
Vin
1
EMI
FILTER
+10.5V
UNDER VOLTAGE
LOCKOUT
& INHIBIT
INHIBIT 3
BIAS
SUPPLY
13
+OUTPUT
12
RETURN
11
-OUTPUT
8
ADJUST
+5V
SHORT CIRCUIT
&
OVERLOAD
LEVEL
TRANSLATOR
& FET DRIVE
RETURN 2
+5V
+
+5V
-
EA
-
+
SYNC.
4
INPUT
OSCILLATOR
SYNC.
5
OUTPUT
+
PWM
-
RAMP
GENERATOR
SAMPLE
&
HOLD
6
FEEDBACK
TRIGGER
6
CASE
GROUND
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M3G-SERIES
(28V Input, Single/Dual Output)
Fig 3. Conducted Emissions, Positive Lead
100
90
80
70
dB-uA
60
CEO3 LIMIT
50
40
30
20
10
0
1E3
1E4
1E5
1E6
Frequency ( Hz )
1E7
1E8
Fig 4. Line Rejection, 28Vdc + 8Vacp-p
0
-20
dB
-40
-60
-80
-100
-120
1E2
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1E3
Frequency ( Hz )
1E4
1E5
7
M3G-SERIES
(28V Input, Single/Dual Output)
Fig 5. M3G2803R3S Efficiency
80
Efficiency ( % )
70
Vin=18V
60
Vin=28V
50
Vin=50V
40
0
5
10
15
20
Output Power ( Watts )
25
30
35
Fig 6. M3G2805S Efficiency
90
Efficiency ( % )
80
70
Vin=18V
60
Vin=28V
50
Vin=50V
40
0
8
5
10
15
20
25
Output Power ( Watts )
30
35
40
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M3G-SERIES
(28V Input, Single/Dual Output)
Fig 7. M3G2812S Efficiency
90
Efficiency ( % )
80
70
Vin=18V
60
Vin=28V
50
Vin=50V
40
0
5
10
15
20
25
Output Power ( Watts )
30
35
40
Radiation Performance Characteristics
Test Inspection
Method
Min
Typ
Unit
200
300
Krads(Si)
MIL-PRF-883, Method 1019
Total Ionizing Dose (Gamma)
Operating bias applied during exposure,
Full Rated Load, VIN = 28V
Dose Rate (Gamma Dot)
Temporary Saturation
Survival
Neutron Fluence
MIL-STD-883, Method 1023
Operating bias applied during exposure,
Full Rated Load, VIN = 28V
1E8
Rads(Si)/sec
4E10
1E11
MIL-STD-883, Method 1017
8E12
1E13
Neutrons/cm2
Heavy Ions (LET)
Single Event Effects
SEU, SEL, SEGR, SEB
Operating bias applied during exposure,
Full Rated Load, VIN = 28V
82
2
MeVxcm /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.
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9
M3G-SERIES
(28V Input, Single/Dual Output)
Application Notes:
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.
2.
3.
4.
Check the mounting surfaces and remove foreign material, burrs if any or anything that may
interfere with the attachment of the converter.
Place the gasket on the surface reserved for the converter and line it up with the mounting holes.
Place the converter on the gasket and line both up with mounting holes.
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.
10
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M3G-SERIES
(28V Input, Single/Dual Output)
B) Output Voltage Adjustment.
Single Output:
Adjustment of the output voltage requires the +Sense pin be connected in one of two ways as shown in
Figures 8 and 9 below. Use the equations and circuit configurations provided to calculate the required
resistance ( RADJ ) for the applicable voltage adjust range. The output adjustment is limited to 0 to +10%
range for reliable operation.
Fig 8. Configuration for Adjusting Single Output Voltage from +0.25V to +10%
+Out
13
Out
12
Return
M3G
(single output)
+Sense 10
-Sense
Radj
9
Fig 9. Configuration for Adjusting Single Output Voltage from 0 to +0.25V
+Out
13
Out
12
Return
M3G
(single output)
Radj
+Sense 10
-Sense
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9
11
M3G-SERIES
(28V Input, Single/Dual Output)
For M3GXX03R3S:
Using the configuration of Fig 8 and where RADJ is in Ohms and 3.513
RADJ =
< VOUT <
3.630
< VOUT <
3.513
495
VOUT − 3.513
Using the configuration of Fig 9 and where RADJ is in Ohms and 3.300
RADJ = 150
(VOUT − 3.300)
(3.513 −VOUT )
For M3GXX05S:
Using the configuration of Fig 8 and where RADJ is in Ohms and 5.250 < VOUT < 5.500
R ADJ =
750
VOUT − 5.25
Using the configuration of Fig 9 and where RADJ is in Ohms and 5.500 < VOUT < 5.250
R ADJ = 150
(V O U T − 5 .000 )
(5 .250 − V O UT )
For M3GXX12S:
Using the configuration of Fig 8 and where RADJ is in Ohms and 12.312
RADJ =
1800
VOUT − 12.312
Using the configuration of Fig 9 and where RADJ is in Ohms and 12.000
RADJ = 150
< VOUT < 16.500
2250
VOUT − 15.315
Using the configuration of Fig 9 and where RADJ is in Ohms and 15.000
RADJ = 150
12
< VOUT < 12.312
(VOUT −12.000)
(12.312 −VOUT )
For M3GXX15S:
Using the configuration of Fig 8 and where RADJ is in Ohms and 15.315
RADJ =
< VOUT < 13.200
< VOUT < 15.315
(VOUT −15.000)
(15.315 −VOUT )
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M3G-SERIES
(28V Input, Single/Dual Output)
Dual Output:
The dual output models have an Adjust pin which can be connected through a resistor ( RADJ ) to either output.
This allows the outputs to be reliably adjusted by approximately +10% to -25% of the nominal output voltage.
Refer to Figure 10 and use equations provided to calculate the required resistance ( RADJ ).
Fig 10. Configuration for Adjusting Dual Output Voltage
+Out
13
Note 1
Out
12
Return
M3G
(Dual Output)
-Out
11
Notes:
1. For Vout < Vnom
2. For Vout > Vnom
Note 2
Radj
Adjust
8
For all Dual Output Models, to adjust the output voltage higher:
R ADJ =
3.48 (1.64V NOM − 1)
− 51
VOUT − V NOM
where: RADJ is in KOhms
RADJ is connected to -Out pin and VNOM < VOUT < 1.1VNOM (Fig. 10, Note 2)
VNOM is the nominal output voltage with the Adjust pin left open
VOUT is the desired output voltage
For all Dual Output Models, to adjust the output voltage lower:
R ADJ =
3.48 (1.64VNOM − 1)(1.64VOUT − 1)
− 51
V NOM − VOUT
where: RADJ is in KOhms
RADJ is connected to +Out pin and 0.75VNOM < VOUT < VNOM (Fig. 10, Note 1)
VNOM is the nominal output voltage with the Adjust pin left open
VOUT is the desired output voltage
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13
M3G-SERIES
(28V Input, Single/Dual Output)
Mechanical Diagram
3.055 MAX.
0.500
0.080
Max.
2.00
R0.0625
4 places
0.30
0.50
0.20
13
1
12
2
11
10
0.60
2.055
MAX.
9
3
8
4
7
5
6
2.30
0.200 Typ.
Noncum.
1.400
Ref.
2.500
Pin
Ø0.040
0.45
1.10
0.260
FLANGE DETAIL
3.50
Ref.
5
62
.0
R0
0.25
0.25
0.14
0.475
MAX.
0.40
Tolerance :
.XX
.XXX
±0.01
±0.005
Pin Designation (Single/Dual)
Pin #
Designation
Pin #
Designation
1
+ Input
8
NC / Adjust
2
Input Return
9
- Sense / NC
3
Inhibit
10
+ Sense / NC
4
Sync. Input
11
NC / - Output
5
Sync. Output
12
Output Return
6
7
Case Ground
NC
13
+ Output
Standard Microcircuit Drawing Equivalence Table
14
Standard Microcircuit
Drawing Number
IR Standard
Part Number
5962-03218
M3G2803R3S
5962-03219
M3G2805S
5962-03220
M3G2805R2S
5962-03221
M3G2812S
5962-03222
M3G2815S
5962-03223
5962-10216
M3G2805D
M3G2815D
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M3G-SERIES
(28V Input, Single/Dual Output)
Device Screening
Requirement
MIL-STD-883 Method
No Suffix
Temperature Range
d
CK
d
-55°C to +85°C
-55°C to +85°C
EM
-55°C to +85°C
Element Evaluation
MIL-PRF-38534
Class K
Class K
N/A
Non-Destructive Bond Pull
2023
Yes
Yes
N/A
Internal Visual
2017
Yes
Yes
c
Temperature Cycle
1010
Cond C
Cond C
Cond C
Constant Acceleration
2001, Y1 Axis
3000 Gs
3000 Gs
3000 Gs
PIND
2020
Cond A
Cond A
N/A
Burn-In
1015
320 hrs @ 125°C
320 hrs @ 125°C
48 hrs @ 125°C
( 2 x 160 hrs )
( 2 x 160 hrs )
Final Electrical
MIL-PRF-38534
-55°C, +25°C,
-55°C, +25°C,
-55°C, +25°C,
( Group A )
& Specification
+85°C
+85°C
+85°C
PDA
MIL-PRF-38534
2%
2%
N/A
Seal, Fine and Gross
1014
Cond A, C
Cond A, C
Cond A
Radiographic
2012
Yes
Yes
N/A
External Visual
2009
Yes
Yes
c
Notes:
c Best commercial practice.
d 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 28 05 S /XX X
Model
Nominal Input
Voltage
28 = 28V
Output Voltage
03R3 = 3.3V, 05 = 5V
05R2 = 5.2V, 12 = 12V
15 = 15V
Lead Finish for CK only
C = Gold Plated
A = Solder Dipped
Blank for No Suffix and EM
Lead Finish for No Suffix = Gold Plated
Lead Finish for EM is Gold Plated or
Solder Dipped depending on availability
Screening Level
(Please refer to Screening Table)
No Suffix, CK, EM
Output
S = Single
D = Dual
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
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15
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