Interpoint MHF283R3S Only 0.33 inches (8.38 mm) high in a hermetically sealed case Datasheet

Crane Aerospace & Electronics Power Solutions
MHF+ Single, Dual and Triple DC/DC Converters
28 Volt input – 15 Watt
Features
Only 0.33 inches (8.38 mm) high in a
hermetically sealed case
• Operating temperature –55° to +125°C
• Input voltage 16 to 40 VDC
- MHF+281R9S 20 to 32 VDC
- Triple output models16 to 48 VDC
models
VDC Output
single
1.9
3.3
5
5.2
5.3
12
15
28
• Transient protection
- Single and dual: 50 V for 50 ms
- Triple: 80 V for 120 ms
• Fully isolated
• Fixed high frequency switching
• Inhibit and synchronization functions
• Indefinite short circuit protection
Dual
±5
±12
±15
triple
+5 & ±12
+5 & ±15
• Up to 84% efficiency
DESCRIPTION
MHF+ Single and Dual DC/DC converters
The MHF+ Single and Dual Series™ of high frequency DC/
DC converters offers a wide input voltage range of 16 to 40
volts (MHF+281R9S, 20 to 32 volts) and up to 15 watts of
output power. The units are capable of withstanding short
term transients up to 50 volts. The converters are offered with
standard screening, “ES” screening, or fully compliant to “883”
MIL-PRF-38534 Class H screening. Standard microcircuit
drawings (SMD) are available.
Converter Design
The MHF+ converters are switching regulators that use a
quasi-square wave, single-ended forward converter design with
a constant switching frequency of 550 kHz typical. Isolation
between input and output circuits is provided with a transformer
in the forward path and a temperature compensated optical link
in the feedback control loop. See Figure 1.
For the MHF+ dual output models, good cross regulation is
maintained by tightly coupled output magnetics. Up to 90%
of the total output power (80% on 2805D) is available from
either output, providing the opposite output is simultaneously
carrying 10% of the total output power (20% on 2805D models).
Predictable current limit is accomplished by directly monitoring
the output load current and providing a constant current output
above the overload point.
Inhibit Function
MHF+ converters provide an inhibit terminal that can be used to
disable internal switching, resulting in no output current and very
low quiescent input current. The converter is inhibited when an
active low of ≤0.8 V is applied to the inhibit pin. The unit is
Crane Aerospace & Electronics
Electronics Group (Interpoint Brand)
PO Box 97005 • Redmond WA 98073-9705
425.882.3100 • [email protected]
www.interpoint.com
enabled when the pin, which is internally connected to a pull-up
resistor, is left unconnected or is connected to an open-collector
gate. The open circuit output voltage associated with the inhibit
pin is 8.5 to 12 V. In the inhibit mode, a maximum of 4 mA must
be sunk from the inhibit pin. See Figure 3.
Synchronization
An external synchronization feature is included that allows the
user to adjust the nominally 550 kHz operating frequency to
any frequency within the range of 500 kHz to 600 kHz. This is
initiated by applying a signal input of the desired frequency to
pin 5. The capacitively coupled sync input will synchronize on
a differential signal of as low as 4 volts to as high as 5 V. For
single and dual output models, if the sync function is not used,
connect the terminal to input common.
Short Circuit Protection
MHF+ Series single and dual output converters provide short
circuit protection by restricting the output current to approximately
115% of the
full load output current. The output current is sensed in the
secondary stage to provide highly predictable and accurate
current limiting, and to eliminate foldback characteristics.
Undervoltage Lockout
Undervoltage lockout prevents the single and dual output
converters from operating below approximately 14 VDC input
voltage to keep system current levels smooth, especially during
initialization or re-start operations.
Page 1 of 23
MHF+ Rev L - 20091113
Crane Aerospace & Electronics Power Solutions
MHF+ Single, Dual and Triple DC/DC Converters
28 Volt input – 15 Watt
MHF+ Series™ Triple DC/DC converters
MHF+ Series™ Triple DC/DC converters provide a wide input
voltage range of 16 to 48 VDC delivering 15 watts of total output
power with output voltages of +5 and ±12 or +5 and ±15 VDC.
The main output, +5 VDC, will supply up to 7.5 watts and the
auxiliaries will supply up to 7.5 watts of combined power. Full
power operation at -55° C to +125° C plus the ability to withstand
transients of up to 80 V for up to 120 milliseconds make these
converters an ideal choice for your high reliability systems.
Soft Start Feature
The soft-start feature provides a controlled 25 milliseconds
maximum turn-on to minimize inrush current and reduce
overshoot at initial start-up or when inhibit is released.
Synchronization
MHF+ Triple Series of DC/DC converters incorporate dual-phase,
phase-shifted technology with a continuous flyback topology.
This design eliminates a minimum load requirement on the main
output and eliminates cross regulation effects between the main
output voltage and auxiliary output voltages. See Figure 2.
The phase-shifted design offers reduced input and output ripple.
To meet MIL-STD-461 requirements use an EMI filter, see Figure
5. FMH-461 is the recommended filter.
To synchronize the converter’s switching frequency to a system
clock apply the clock signal to the sync terminal (pin 7). When
multiple converters are powered from a single power source,
asynchronous (free run) operation will result in lower peak
noise for common spectral peaks, but synchronous operation
will eliminate any possibility of interference frequencies in the
low audio band. Source impedance of the signal should be
less than 100 ohms and the transition time should be less than
100 nanoseconds. The capacitively coupled sync input will
synchronize on a differential signal of as low as 4 volts to as high
as 5 V. For triple output models, if the sync function is not used,
the terminal should be left open. See Figure 4.
Inhibit Function
Short Circuit Protection
Converter Design
An open collector inhibit terminal (pin 1) provides shut-down and
start-up control. Applying an active low of <0.8 V, referenced to
input common, will disable the output of the converter. When
inhibited, input current is reduced to 5 mA or less and there is no
generation of switching noise. The inhibit terminal typically sinks
3 mA when the converter is inhibited.
Leaving the terminal open or pulling it high will enable the
converter. Use an open collector interface for active high voltages
of up to 11 volts. (Refer to Figure 2 for a connection diagram.)
An open collector interface is not required if the active high is in
excess of the open circuit voltage of the inhibit terminal (11 volts)
but less than 40 volts. See Figure 2.
MHF+ Series™ all Models
Packaging
MHF+ Series of converters are packaged in hermetically sealed
metal cases and can be purchased in a flanged or non-flanged
case. The flanged option provides increased heat dissipation and
also provides greater stability when mechanically secured.
On the triple output models, internal current limiting circuitry
protects on all three outputs against short circuits. When output
power exceeds approximately 130% of maximum output power,
the output currents are limited. In addition, separate current
limiting circuitry protects each output individually resulting in
normal operation of either the main or the auxiliaries, whichever
is not in a shorted condition.
Undervoltage Lockout
Undervoltage lockout prevents the triple output models units from
operating below approximately 8.5 VDC input voltage to keep
system current levels smooth, especially during initialization or
re-start operations.
Output Voltage Options
The MHF+ Series converters are capable of providing other
output voltage options in addition to those characterized on this
datasheet. Contact your sales representative to discuss other
output voltage options.
US Patents
Interpoint converters may use one or more of the following US
patents 5,521,807, 5,694,303 and 5,631,822.
www.interpoint.com
Page 2 of 23
MHF+ Rev L - 20091113
Crane Aerospace & Electronics Power Solutions
MHF+ Single, Dual and Triple DC/DC Converters
28 Volt input – 15 Watt
Operating Conditions and characteristics
Sync and inhibit
Input Voltage Range
• Single and dual models:
‣‣16 to 40 VDC continuous
‣‣MHF+281R9S 20 to 32 DC continuous
‣‣50 V for up to 50 ms transient
‣‣MHF+281R9S 35 V for up to 50 ms transient
• Triple models:
‣‣16 to 48 VDC continuous
‣‣80 V for up to 120 ms transient
Sync In
• Input frequency
‣‣Single and dual models: 500 to 600 kHz
‣‣Triple models: 400 to 600 kHz
‣‣Duty cycle 40% to 60%
• Active low 0.8 V max
• Active high 4 V min, 5 V max
• Triple models: source impedance should be <100 ohms and
the transition time should be <100 nanoseconds
• If sync is not used
‣‣Single and dual models: connect to input common
‣‣Triple models: leave unconnected
• Referenced to input common
Output Power
• 6.65 to 15 watts depending on model
Power Dissipation (Pd)
• Single and dual models: 6 watts
• 1.9 and 3.3V single: 8 watts
• Triple models: 12 watts triple
Output Voltage Temperature Coefficient
• 100 ppm/°C typical
• 150 ppm/°C maximum
Inhibit:
• Active low (output disabled)
‣‣Active low voltage ≤0.8 V max
-- Inhibit pin current
·· Single and dual models: 4.0 mA max, 3.0 mA typ
·· Triple models: 5.0 mA max, 3.0 mA typ
‣‣Referenced to input common
• Active high (output enabled)
‣‣Single and dual models
-- Open collector or unconnected
-- Open pin 8.5 to 12 V, 10 V typical
‣‣Triple models
-- Open collector or unconnected
-- Open collector interface not required if active high is
greater than 11 V and less than 40V
-- Open pin voltage, 11 V typical
Current Limit
• Single and dual models: 115% of full load typical
• Triple models: 130% of full load typical triple
mechanical and environmental
Audio Rejection
• 50 dB typical
Size (maximum)
• Non flanged 1.460 x 1.130 x 0.330 (37.08 x 28.70 x 8.38 mm)
• Flanged 2.005 x 1.130 x 0.330 (50.93 x 28.70 x 8.38 mm)
• See cases E1, E2, G1 and G2 for dimensions.
Lead Soldering Temperature (10 sec per pin)
• 300°C
Storage Temperature Range (Case)
• -65°C to +150°C
Case Operating Temperature (TC)
• -55°C to +125°C full power
• -55°C to +135°C absolute
Derating Output Power/Current
• Linearly from 100% at 125°C to 0% at 135°C
Input to Output Capacitance
• 60 pF typical
Isolation
• 100 megohm minimum at 500 V
Conversion Frequency (-55°C to +125°C TC)
• Free run
‣‣Single and dual models: 480 kHz min, 550 kHz typ,
620 kHz max
‣‣Triple models: 375 kHz min, 500 kHz max
Undervoltage Lockout
• Single and dual models: 14 V input typical
• Triple models: 8.5 V input typical
www.interpoint.com
Weight, flanged or unflanged (maximum)
• Single and dual models: 30 grams
• Triple models: 35 grams
Screening:
Standard, ES or 883 (Class H). See Screening Tables 1 and 2 for
more information.
Page 3 of 23
MHF+ Rev L - 20091113
Crane Aerospace & Electronics Power Solutions
MHF+ Single, Dual and Triple DC/DC Converters
28 Volt input – 15 Watt
Simplified Schematic Diagrams
Positive
Input
5 µH
Positive
Output
2 µF
PWM
Controller
Inhibit
FET
Driver
Limit
ID
Ref.
IC
Output
Common
Input
Common
Figure 1: MHF+ Single Output Block Diagram
0°
Positive
Input
+5 Output
FEEDBACK ISOLATOR
PWM CM
CONTROLLER
Output
Common
Input
Common
FEEDBACK ISOLATOR
Synv
PWM CM
CONTROLLER
180°
–Aux.
Output
Figure 2: MHF+ Triple Output Block Diagram
www.interpoint.com
+ Aux.
Output
Page 4 of 23
MHF+ Rev L - 20091113
Crane Aerospace & Electronics Power Solutions
MHF+ Single, Dual and Triple DC/DC Converters
28 Volt input – 15 Watt
CONNECTION DIAGRAMS
POSITIVE INPUT
MHF+
9
10 k
INHIBIT
1N4148
1
2N3501
200 pF
10 K
3.9 K
8
INPUT
COMMON
Figure 3: Inhibit Interface
9
0.01
28V
5.1k
F
7
+5 Output 2
Positive Input
+ Aux. Output 4
Sync In
Output Common 3
1
Inhibit
8
Input Common
– Aux. Output 5
+ Aux.
Load
+5
Load
– Aux.
Load
If the sync terminal ([pin 7) is not used, it must be left
floating. The ac coupling shown will prevent sync signal
failure.
Figure 4: AC Coupling
1
Positive Input
Sync Signal, Triple Models
of
Positive Output
2
Positive Input
FMH-461
EMI FILTER
28V
5
Input Common
MHF+
Output Common 4
Case Ground
3
Input Common
Case Ground
Case*
Chassis Ground
*The case ground connection should be as low an impedance as possible to minimize EMI.
Direct contact of baseplate to chassis ground provides the lowest impedance.
Figure 5: EMI Filter Connection
www.interpoint.com
Page 5 of 23
MHF+ Rev L - 20091113
Crane Aerospace & Electronics Power Solutions
MHF+ Single, Dual and Triple DC/DC Converters
28 Volt input – 15 Watt
Pin
Single Output
MHF+2828S
1
Inhibit
Inhibit
3
Output Common
(See note 1)
2
No Connection
4
6
Sync In
Case Ground
7
Input Common
Positive Input
9
Main (+5) Output
Output Common
Negative Output
Pos. Aux. Output
Case Ground
Case Ground
Neg. Aux. Output
Input Common
Positive Input
—
Positive Output
Inhibit
Sync In
Case Ground
Input Common
8
Triple Output
Output Common
Output Common
Sync In
Dual Output
Inhibit
Positive Output
Positive Output
5
PIN OUT
Sync
Positive Input
—
Input Common
—
Positive Input
1. Pin 3 of MHF+2828S will provide 14 Vout referenced to output common (pin 4).
PINS NOT IN USE
Inhibit: single, dual and triple, pin 1
Leave unconnected
Sync: single and dual, pin 5
Connect to input common
MHF+2828S, pin 3
Sync: triple, pin 7
Leave unconnected
Leave unconnected
Dot on top of case
indicates pin one.
1
2
3
4
Squared corner and dot on top
of case indicate pin one.
1
5
7
9
6
Dotted line outlines flanged package option.
www.interpoint.com
and
4
5
8
7
6
Dotted line outlines flanged package option.
See cases E1 and G1 for dimensions.
Figure 6: MHF+ Single
3
BOTTOM VIEW
MHF+ Triple
BOTTOM VIEW
MHF+ SINGLE AND DUAL
8
2
See cases E2 and G2 for dimensions.
Figure 7: MHF+ Triple Pin Out
Dual Pin Out
Page 6 of 23
MHF+ Rev L - 20091113
Crane Aerospace & Electronics Power Solutions
MHF+ Single, Dual and Triple DC/DC Converters
28 Volt input – 15 Watt
model numbering key
MHF+ 28 12 D
Base Model
Input Voltage
Output Voltage
(R = decimal point, 3R3 = 3.3 Vout;
Main and aux. Vout for triple models)
SMD Numbers
F / 883
Number of Outputs
(S = single, D = dual, T = Triple)
Case Option
(Non-flanged case has no designator in
this position)
Screening
(Standard screening has no designator
in this position.)
Standard Microcircuit
Drawing (SMD)
MHF+ Similar Part
5962-0251001HXC
mhf+283r3s/883
5962-9213901HXC
MHF+2805S/883
5962-0325301HXC
mhf+285R2s/883
5962-9166401HXC
MHF+2812S/883
5962-9160101HXC
MHF+2815S/883
5962-9689801HXC
mhf+2828S/883
5962-9555901hxc
mhf+2805d/883
5962-9214401HXC
MHF+2812D/883
5962-9161401HXC
MHF+2815D/883
5962-9560101hxc
MHF+28512t/883
5962-9560201hxc
mhf+28515t/883
Flanged SMDs have the suffix HZC instead of HXC.
For exact specifications for an SMD product, refer to the
SMD drawing. SMDs can be downloaded from http://
www.dscc.dla.mil/programs/smcr
On
model selection
the lines below, enter one selection from each category to determine the model number.
Category
SELECTION
___________
Mhf+28
Base Model and
Input Voltage
MHF+28 is the only
available option
Output Voltage
1
Number of Outputs
2
Case/Lead Options
/
3
Screening 4
1R9, 3R3, 05, 5R2,
5R3, 12, 15, 28
S
(non-flanged leave blank)
(Standard
leave blank)
05, 12, 15
D
F (flanged)
ES
512, 515
T
883
Notes:
1. Output Voltage: An R indicates a decimal point. 1R9 is 1.9 volts out. The values of 1R9, 3R3, 5R2 and 5R3 are only available in single output models. The 512 and
515 triple output converters are +5 volt main and ±12 or ±15 volt auxiliaries.
2. Number of Outputs: S is a single output, D is a dual output, and T is a triple output
3. Case Options: For the standard case (non-flanged) leave the case option blank. For the flanged case, use an F in the case option.
4. Screening: For standard screening leave the screening option blank. For other screening options, insert the desired screening level. For more information see
Screening Tables 1 and 2.
www.interpoint.com
Page 7 of 23
MHF+ Rev L - 20091113
Crane Aerospace & Electronics Power Solutions
MHF+ Single, Dual and Triple DC/DC Converters
28 Volt input – 15 Watt
Electrical Characteristics: -55° TO +125°C TC , 28 VDC Vin, 100% load, free run, unless otherwise specified.
single output models
PARAMETER
MHF+281R9S
CONDITIONS
OUTPUT VOLTAGE
OUTPUT CURRENT
OUTPUT POWER
OUTPUT RIPPLE
10 kHz - 2 MHz
LINE REGULATION
Vin = 16
Vin = 16
to
40 VDC
to
40 VDC
TC = 25°C
VIN = 16 TO 40 VDC
MHF+283R3S
MHF+2805S
UNITS
MIN
TYP
MAX
MIN
TYP
MAX
MIN
TYP
MAX
1.84
1.90
1.96
3.20
3.30
3.40
4.85
5.00
5.15
VDC
0
–
3.5
0
—
2.4
0
—
2.4
A
W
0
—
6.65
0
—
8
0
—
12
—
7
30
—
30
80
—
30
80
—
12
40
—
50
240
—
60
100
mV p-p
—
1
40
–
5
100
—
5
50
mV
LOAD REGULATION
NO LOAD TO FULL
2
—
35
55
–
20
50
—
20
50
mV
INPUT VOLTAGE
NO LOAD TO FULL
CONTINUOUS
TRANSIENT 50 ms 1
20
28
32
16
28
40
16
28
40
VDC
—
—
35
—
—
50
—
—
50
V
INPUT CURRENT
INPUT RIPPLE CURRENT
10 kHz - 10 MHz
NO LOAD
—
16
35
—
25
40
—
25
40
INHIBITED
—
2
7
—
5
12
—
5
12
TC = 25°C
—
30
60
–
45
80
—
35
80
—
—
70
—
—
120
—
—
100
56
62
—
67
75
–
72
77
—
POWER DISSIPATION
SHORT CIRCUIT
—
4
8
—
5
8
—
3.5
6
RECOVERY 1
—
5
30
—
7.5
30
—
7.5
30
ms
50% - 100% - 50%
TRANSIENT
—
±75
±500
—
±150
±400
—
±150
±400
mV pk
RECOVERY
—
500
2000
—
150
300
—
150
300
µs
—
±300
±600
—
±550
±800
—
±550
±800
mV pk
RECOVERY
—
0.5
1.2
—
0.8
1.2
—
0.8
1.2
ms
DELAY
OVERSHOOT 1
—
12
35
–
10
25
—
10
25
ms
—
500
850
—
200
300
—
100
600
mV pk
—
—
100
–
–
300
–
–
300
µF
EFFICIENCY
LOAD FAULT
3, 4
STEP LOAD
RESPONSE 4, 5
STEP LINE
RESPONSE 1, 4, 5
START-UP
5
Capacitive Load 1
16 - 40 - 16 VDC
TRANSIENT
6
Notes
1. Guaranteed by design, not tested.
2. For MHF+281R9, load regulation is tested from a 10 mA load to full load.
3.Indefinite short circuit protection not guaranteed above 125°C (case).
4.Recovery time is measured from application of the transient.
to the point at which VOUT is within regulation.
www.interpoint.com
5. Step transition time >10 µs.
6. Step line is 20 - 32 - 20 VDC for MHF+281R39S.
Page 8 of 23
MHF+ Rev L - 20091113
mA
mA p-p
%
W
Crane Aerospace & Electronics Power Solutions
MHF+ Single, Dual and Triple DC/DC Converters
28 Volt input – 15 Watt
Electrical Characteristics: -55° TO +125°C TC , 28 VDC Vin, 100% load, free run, unless otherwise specified.
single output models
PARAMETER
MHF+285R2S
CONDITIONS
OUTPUT VOLTAGE
OUTPUT CURRENT
OUTPUT POWER
Vin = 16
Vin = 16
OUTPUT RIPPLE
to
40 VDC
to
40 VDC
LINE REGULATION
LOAD REGULATION
INPUT VOLTAGE
NO LOAD TO FULL
INPUT CURRENT
INPUT RIPPLE CURRENT
10 kHz - 10 MHz
LOAD FAULT
STEP LOAD
RESPONSE 4, 3
STEP LINE
RESPONSE 1, 3, 4
START-UP 4
Capacitive Load
1
TYP
MAX
MIN
TYP
MAX
MIN
TYP
MAX
5.04
5.20
5.36
5.19
5.35
5.51
11.76
12.00
12.24
VDC
0
—
2.4
0
—­
2.83
0
—
1.25
A
W
—
12.48
0
—
15
0
—
15
30
50
—
30
50
—
30
80
—
60
100
—
60
100
—
50
120
VIN = 16 TO 40 VDC
—
5
50
—
5
50
—
5
50
mV
NO LOAD TO FULL
—
20
50
—
20
50
—
20
50
mV
CONTINUOUS
TRANSIENT 50 ms 1
16
28
40
16
28
40
16
28
40
VDC
—
—
50
—
—
50
—
—
50
V
mV p-p
NO LOAD
—
25
43
—
24
43
—
25
50
INHIBITED
—
5
12
—
5
12
—
5
12
TC = 25°C
—
35
80
—
35
80
—
35
80
—
—
120
—
—
120
—
—
120
72
77
—
72
77
­—
74
79
—
%
POWER DISSIPATION
SHORT CIRCUIT
—
3.5
6
—
3.5
6
—
3.5
6
W
RECOVERY 1
—
7.5
30
—
7.5
30
—
7.5
30
ms
50% - 100% - 50%
TRANSIENT
—
±150
±400
—
±150
±400
—
±150
±500
mV pk
RECOVERY
—
150
300
—
150
300
—
150
300
µs
16 - 40 - 16 VDC
TRANSIENT
—
±550
±800
—
±550
±800
—
±550
±800
mV pk
RECOVERY
—
0.8
1.2
—
0.8
1.2
—
0.8
1.2
ms
DELAY
—
10
25
—
10
25
—
10
25
ms
OVERSHOOT 1
—
100
600
—
100
600
—
200
1200
mV pk
—
—
300
—
—
300
—
—
100
µF
Notes
1. Guaranteed by design, not tested.
2.Indefinite short circuit protection not guaranteed above 125°C (case).
3.Recovery time is measured from application of the transient.
to the point at which VOUT is within regulation.
www.interpoint.com
UNITS
MIN
0
EFFICIENCY
2, 3
MHF+2812S
—
TC = 25°C
10 kHz - 2 MHz
MHF+285R3S
4. Step transition time >10 µs.
Page 9 of 23
MHF+ Rev L - 20091113
mA
mA p-p
Crane Aerospace & Electronics Power Solutions
MHF+ Single, Dual and Triple DC/DC Converters
28 Volt input – 15 Watt
Electrical Characteristics: -55° TO +125°C TC, 28 VDC Vin, 100% load, free run, unless otherwise specified.
single output models
PARAMETER
MHF+2815S
CONDITIONS
OUTPUT VOLTAGE
OUTPUT CURRENT
OUTPUT POWER
Vin = 16
Vin = 16
OUTPUT RIPPLE
to
40 VDC
to
40 VDC
LINE REGULATION
LOAD REGULATION
INPUT VOLTAGE
NO LOAD TO FULL
INPUT CURRENT
INPUT RIPPLE CURRENT
10 kHz - 10 MHz
TYP
MAX
MIN
TYP
MAX
14.70
15.00
15.30
27.44
28.00
28.56
VDC
0
—­
1.00
0
—
0.536
A
W
0
—
15
0
—
15
—
30
80
—
60
120
—
50
120
—
100
180
VIN = 16 TO 40 VDC
—
5
50
—
50
150
mV
NO LOAD TO FULL
—
20
50
—
50
150
mV
CONTINUOUS
TRANSIENT 50 ms 1
16
28
40
16
28
40
VDC
—
—
50
—
—
50
V
LOAD FAULT
STEP LOAD
RESPONSE 3, 4
STEP LINE
RESPONSE 1, 3, 4
START-UP 4
Capacitive Load
NO LOAD
—
25
62
—
25
60
—
5
12
—
5
12
TC = 25°C
—
35
80
—
35
80
—
—
120
—
—
120
74
80
­—
78
84
—
%
POWER DISSIPATION
SHORT CIRCUIT
—
3.5
6
—
3.5
6
W
RECOVERY 1
—
7.5
30
—
7.5
30
ms
50% - 100% - 50%
TRANSIENT
—
±200
±600
—
±600
±800
mV pk
RECOVERY
—
150
300
—
200
400
µs
16 - 40 - 16 VDC
TRANSIENT
—
±550
±800
—
±1100
±1200
mV pk
RECOVERY
—
0.8
1.2
—
0.8
1.2
ms
DELAY
—
10
25
—
10
25
ms
OVERSHOOT 1
—
200
1500
—
200
280
mV pk
—
—
100
—
—
100
µF
1
Notes
1. Guaranteed by design, not tested.
2.Indefinite short circuit protection not guaranteed above 125°C (case).
3.Recovery time is measured from application of the transient .
to the point at which VOUT is within regulation.
www.interpoint.com
mV p-p
INHIBITED
EFFICIENCY
2, 3
UNITS
MIN
TC = 25°C
10 kHz - 2 MHz
MHF+2828S
4. Step transition time >10 µs.
Page 10 of 23
MHF+ Rev L - 20091113
mA
mA p-p
Crane Aerospace & Electronics Power Solutions
MHF+ Single, Dual and Triple DC/DC Converters
28 Volt input – 15 Watt
Electrical Characteristics: -55° TO +125°C TC, 28 VDC Vin, 100% load, free run, unless otherwise specified.
DUAL output models
PARAMETER
OUTPUT VOLTAGE
OUTPUT CURRENT 2, 3
Vin = 16
to
Vin = 16
to
40 VDC
OUTPUT POWER 2, 3
40 VDC
OUTPUT RIPPLE
±VOUT, 10kHz - 2 MHz
MHF+2805D
MHF+2812D
MHF+2815D
CONDITIONS
MIN
TYP
MAX
MIN
TYP
MAX
MIN
TYP
MAX
+Vout
4.85
5.00
5.15
11.76
12.00
12.24
14.70
15.00
15.30
-Vout
4.82
5.00
5.18
11.70
12.00
12.30
14.63
15.00
15.38
Each Output
0
±1.2
1.92 1
0
±0.625
1.125 1
0
±0.50
0.90 1
Total
—
—
2.4
—
—
1.25
—
—
1.0
Each Output
0
±6
9.6 1
0
±7.5
13.5 1
0
±7.5
13.5 1
Total
—
—
12
—
—
15
—
—
15
TC = 25°C
—
30
80
—
30
80
—
30
60
—
60
80
—
60
120
—
50
120
UNITS
VDC
A
W
mV p-p
LINE REGULATION
Vin = 16 to 40 VDC
+Vout
—
5
50
—
5
50
—
5
50
—
—
80
—
—
100
—
—
100
LOAD REGULATION
Balanced Loads
No Load to Full
-Vout
+Vout
—
20
50
—
20
50
—
20
50
-Vout
—
—
100
—
—
100
—
—
100
25°C
EFFECT ON -Vout
—
6
7.5
—
3
6
—
3
5
%
16
28
40
16
28
40
16
28
40
VDC
V
CROSS REGULATION 4
INPUT VOLTAGE
INPUT CURRENT
INPUT RIPPLE CURRENT
10 kHz - 10 MHz
CONTINUOUS
TRANSIENT 50 ms
1
—
—
50
—
—
50
—
—
50
NO LOAD
—
20
40
—
25
50
—
25
50
INHIBITED
—
6
12
—
5
12
—
5
12
TC = 25°C
EFFICIENCY
LOAD FAULT 5, 6
STEP LOAD
RESPONSE 7, 8
50% - 100% - 50%
Balanced Loads
STEP LINE
RESPONSE 1, 8
±Vout
START-UP 8
Vin = 40 V
Capacitive Load 1
—
20
50
—
35
60
—
35
60
—
40
80
—
50
100
—
50
100
mV
mA
mA p-p
75
79
—
74
83
—
75
84
—
%
POWER DISSIPATION
SHORT CIRCUIT
—
3
6
—
3
6
—
3
6
W
RECOVERY 1
—
7.5
30
—
7.5
30
—
7.5
30
ms
TRANSIENT +Vout
—
±200
±600
—
±300
±700
—
±300
±700
—
±150
±600
—
±100
±700
—
±100
±700
RECOVERY
—
150
500
—
200
500
—
200
500
µs
16 - 40 - 16 Vin
TRANSIENT
—
±600
±800
—
±550
±750
—
±550
±750
mV pk
RECOVERY
—
0.8
1.2
—
0.8
1.2
—
0.8
1.2
ms
DELAY
—
12
20
—
12
25
—
12
25
ms
—
80
250
—
200
750
—
200
750
mV pk
—
—
47
—
—
10
—
—
10
µF
TRANSIENT -Vout
OVERSHOOT
1
Notes (see following page)
www.interpoint.com
mV
Page 11 of 23
MHF+ Rev L - 20091113
mV pk
Crane Aerospace & Electronics Power Solutions
MHF+ Single, Dual and Triple DC/DC Converters
28 Volt input – 15 Watt
Electrical Characteristics: -55° TO +125°C TC, 28 VDC Vin, 100% load, free run, unless otherwise specified.
Notes for Dual Output Models
1. Guaranteed by design, not tested.
2. Up to 13.5 watts, 90% (9.6 watts, 80% for 2805D) of the total output power is
available from either output provided that the opposite output is simultaneously
carrying 10% (20% for 2805D) of the total output power. One of the outputs must
always provide a minimum of 10% (20% for 2805D) of the total output power
used to meet cross regulation. Negative Vout cross regulation is referenced to
50%/50% balanced loads (at 100% of total rated output power - full load).
3. The “Total” specification is the maximum combined current/power of both outputs.
4.Effect on –VOUT for the following conditions, A and B:
Condition A:
+Po = 50% to 10% and –Po = 50%
+Po = 50% and –Po = 50% to 10%
Condition B, outputs are switched simultaneously between the “From” and “To”
conditions:
From +Po = 70%, –Po = 30%
To +Po = 30%, –Po = 70%
Both conditions are referenced to the balanced loads
condition: 50%/50%
www.interpoint.com
5.Indefinite short circuit protection not guaranteed above 125°C (case)
6.Recovery time is measured from application of the transient to point at
which VOUT is within regulation.
7.Response of either output with the opposite output held at half of the total output
power.
8. Step transition time >10 µs.
Page 12 of 23
MHF+ Rev L - 20091113
Crane Aerospace & Electronics Power Solutions
MHF+ Single, Dual and Triple DC/DC Converters
28 Volt input – 15 Watt
Electrical Characteristics: -55° TO +125°C TC, 28 VDC Vin, 100% load, free run, unless otherwise specified.
5 2 (main)
triple output model – MHF+28512T
PARAMETER
OUTPUT VOLTAGE
OUTPUT CURRENT 3
MIN
TYP
MAX
MIN
Vout
4.85 2
5.00
5.15
—
—
1.5
Total
—
—
—
Total
10 kHz - 2 MHz
OUTPUT POWER 4
Vin = 16 - 48 VDC
OUTPUT RIPPLE
LINE REGULATION
LOAD REGULATION
Vin= 16
6
CROSS REGULATION 6
TC = 25°C
to
TYP
MAX
±11.52
±12.00
0
±0.313
±12.48
0.416 1
1.5
—
—
0.625
—
7.5
—
±3.75
51
—
—
7.5
—
—
7.5
VDC
A
W
—
20
90
—
±30
±180
mV p-p
48 VDC
—
25
75
—
±120
±240
mV
NO LOAD TO FULL
—
22
75
—
±120
±240
mV
—
—
—
—
—
6.25
%
CONTINUOUS
16
28
48
—
—
—
VDC
TRANSIENT 1 120 ms
—
—
80
—
—
—
V
INPUT CURRENT
INPUT RIPPLE CURRENT
EFFICIENCY
LOAD FAULT 7, 9
8, 9
STEP LINE
RESPONSE 1, 9, 10
START-UP
Notes
1. Guaranteed by design, not tested.
NO LOAD
—
30
45
—
—
—
INHIBITED
—
3
5
—
—
—
10 kHz - 20 MHz
—
20
50
—
—
—
mA p-p
mA
72
76
—
—
—
—
%
POWER DISSIPATION
SHORT CIRCUIT
—
—
12
—
—
±12
W
RECOVERY 1
—
—
25
—
—
25
ms
TRANSIENT
—
—
±850
—
—
±950
mV pk
RECOVERY
—
5
8
—
2
3
ms
16 - 48 - 16
TRANSIENT
—
—
±800
—
—
±800
mV pk
RECOVERY
—
—
5
—
—
5
ms
DELAY
NO LOAD AND FULL
—
10
25
—
10
±25
ms
OVERSHOOT 1
—
—
500
—
—
±500
mV pk
2. If running with external sync, at temperature extremes VOUT main may be
a minimum of 4.80 VDC to a maximum of 5.20 VDC.
3. The sum of the 12 volt auxiliary output currents may not exceed 625 mA.
4. The sum of the auxiliary output power may not exceed 7.5 watts. Up to 5
watts (approximately 66%) of the total auxiliary output power is available
from either output providing the opposite output is simultaneously carrying
2.5 watts (approximately 33%) of the total auxiliary power.
5.Load regulation for the +5 is specified at 0.0 to 1.5 A with the auxiliaries
both held at 3.75 W (313 mA). Load regulation for the auxiliaries is specified as both auxiliaries from 0.0 to 3.75 W (313 mA) at the same time with
the +5 held at 1.5 A.
www.interpoint.com
UNITS
EFFECT ON NEGATIVE
AUXILIARY
INPUT VOLTAGE
STEP LOAD RESPONSE
±12 (AUXiliaries)
CONDITIONS
6. Cross regulation only occurs between the two auxiliaries and is measured
on –aux. +5 is held constant at 1.0 A. Cross regulation is specified for two
conditions:
Negative aux.= 3.76 W; positive aux.= 0.37 W to 3.76 W.
Negative aux. = 0.37 W to 3.76 W; positive aux. = 3.76 W.
7. Load fault = < 0.100 Ω.
8. Step transition time > 10 µs.
9. Time to settle to within 1% of VOUT final value.
10. Step transition time between 2 and 10 µs.
Page 13 of 23
MHF+ Rev L - 20091113
Crane Aerospace & Electronics Power Solutions
MHF+ Single, Dual and Triple DC/DC Converters
28 Volt input – 15 Watt
Electrical Characteristics: -55° TO +125°C TC, 28 VDC Vin, 100% load, free run, unless otherwise specified.
5 2 (MAIN)
triple output model – MHF+28515T
PARAMETER
OUTPUT VOLTAGE
OUTPUT CURRENT 3
MIN
TYP
MAX
MIN
Vout
4.85
5.00
5.15
—
—
1.5
—
—
—
TOTAL
TOTAL
OUTPUT POWER 9
Vin = 16
to
48 VDC
OUTPUT RIPPLE
LINE REGULATION
LOAD REGULATION
NO LOAD TO FULL
5
CROSS REGULATION 6
TC = 25°C
INPUT VOLTAGE
INPUT RIPPLE CURRENT
EFFICIENCY
LOAD FAULT 7, 9
STEP LOAD RESPONSE
8, 9
STEP LINE
RESPONSE 1, 9, 10
START-UP
Notes
1. Guaranteed by design, not tested.
MAX
14.40
15.00
0
±0.250
15.60
0.333 1
1.5
—
—
0.500
—
7.5
—
±2.5
51
—
—
—
—
—
7.5
UNITS
VDC
A
W
10 kHz - 2 MHz
—
20
90
—
±30
±225
mV p-p
—
25
75
—
±150
±300
mV
Vin = 28 VDC
—
25
75
—
±150
±300
mV
EFFECT ON NEGATIVE
AUXILIARY OUTPUT
—
—
—
—
—
5.0
%
CONTINUOUS
16
28
48
—
—
—
VDC
—
—
80
—
—
—
V
1
120 ms
NO LOAD
—
30
45
—
—
—
INHIBITED
—
3
5
—
—
—
10 kHz - 20 MHz
—
20
50
—
—
—
mA
mA p-p
72
76
—
—
—
—
%
POWER DISSIPATION
SHORT CIRCUIT
—
—
12
—
—
±12
W
RECOVERY 1
—
—
25
—
—
25
ms
TRANSIENT
—
—
±850
—
—
±950
mV pk
RECOVERY
—
5
8
—
2
3
ms
16 - 48 - 16 VIN
TRANSIENT
—
—
±800
—
—
±800
mV pk
RECOVERY
—
—
5
—
—
5
ms
DELAY
NO LOAD AND FULL
—
10
25
—
10
25
ms
OVERSHOOT 1
—
—
500
—
—
±500
mV pk
2. If running with external sync, at temperature extremes VOUT main may be
a minimum of 4.80 VDC to a maximum of 5.20 VDC.
3. The sum of the 15 volt auxiliary output currents may not exceed 500 mA.
4. The sum of the auxiliary output power may not exceed 7.5 watts. Up to 5
watts (approximately 66%) of the total auxiliary output power is available
from either output providing the opposite output is simultaneously carrying
2.5 watts (approximately 33%) of the total auxiliary power.
5.Load regulation for the +5 is specified at 0.0 to 1.5 A with both auxiliaries
held at 3.75 W (250 mA). Load regulation for the auxiliary. is specified as
both auxiliaries from 0.0 to 3.75 W (250 mA) at the same time with the +5
held at 1.5 A.
www.interpoint.com
TYP
Vin= 16, 48 VDC
TRANSIENT
INPUT CURRENT
±15 (AUXILIARIES)
CONDITIONS
6. Cross regulation only occurs between the two auxiliaries and is measured
on –aux. +5 is held constant at 1.0 A. Cross regulation is specified for two
conditions:
Negative aux.= 3.76 W; positive aux.= 0.37 W to 3.76 W.
Negative aux. = 0.37 W to 3.76 W; positive aux. = 3.76 W.
7. Load fault = < 0.100 Ω.
8. Step transition time > 10 µs.
9. Time to settle to within 1% of VOUT final value.
10. Step transition time between 2 and 10 µs.
Page 14 of 23
MHF+ Rev L - 20091113
Crane Aerospace & Electronics Power Solutions
MHF+ Single, Dual and Triple DC/DC Converters
28 Volt input – 15 Watt
Typical Performance Curves: 25°C Tc , 28 VDC Vin, 100% load, free run, unless otherwise specified.
90
16V
70
40V
28V
60
50
70
40V
60
50
2
4
6
8
10
40
12
4
2
6
8
10
12
40
14 15
2
4
16V
EFFICIENCY (%)
70
40V
60
28V
4
6
8
10
40
12
70
40V
60
28V
50
50
50
14 15
80
80
28V
12
90
16V
40V
10
Figure 10
16V
70
8
MHF+2815S EFFICIENCY
90
80
6
OUTPUT POWER (Watts)
Figure 9
90
EFFICIENCY (%)
28V
60
MHF+2812S EFFICIENCY
Figure 8
2
40V
OUTPUT POWER (Watts)
MHF+2805S EFFICIENCY
40
70
50
OUTPUT POWER (Watts)
60
16V
80
28V
EFFICIENCY (%)
40
16V
80
EFFICIENCY (%)
EFFICIENCY (%)
80
90
EFFICIENCY (%)
90
4
2
OUTPUT POWER (Watts)
6
8
10
12
40
14 15
OUTPUT POWER (Watts)
MHF+2805D EFFICIENCY
4
6
8
10
12
14
OUTPUT POWER (Watts)
MHF+2812D EFFICIENCY
Figure 11
2
MHF+2815D EFFICIENCY
Figure 13
Figure 12
0
–30
–40
–50
VOUT
100% to 50%
100mV/div.
500mV/div.
–20
–60
–70
50% to 100%
20V/div.
ATTENUATION (dB)
–10
–80
–90
–100
0.1
1
10
FREQUENCY (kHz)
MHF+ SERIES AUDIO REJECTION
Figure 14
www.interpoint.com
100
VIN
1ms/div
16V TO 40V
MHF+2805S STEP LINE RESPONSE
Figure 15
Page 15 of 23
MHF+ Rev L - 20091113
50µs/div
50%
100%
MHF+2805S STEP LOAD RESPONSE
Figure 16
Crane Aerospace & Electronics Power Solutions
MHF+ Single, Dual and Triple DC/DC Converters
28 Volt input – 15 Watt
VIN
100mV/div.
100% to 10%
200mV/div.
20V/div.
Typical Performance Curves: 25°C Tc , 28 VDC Vin, 100% load, free run, unless otherwise specified.
+VOUT
1V/div.
200µs/div
10% 100%
POUT= 12W
VOUT
VIN
2 ms/div
1 ms/div
16V TO 40V
MHF+2805S TURN-ON INTO FULL LOAD
MHF+2805S STEP LOAD RESPONSE
MHF+2815D STEP LINE RESPONSE
Figure 18
Figure 17
100% to 50%
20V/div.
10% to 100%
Figure 19
PO= 7.5 W
PO= 7.5 W
–VOUT
100mV/div.
100mV/div.
5V/div.
100% to 20%
+VOUT
20V/div.
20% to 100%
50% to 100%
50µs/div
50% 100%
MHF+2815D +VOUT STEP LOAD RESPONSE
50µs/div
20% 100%
MHF+2815D +VOUT STEP LOAD RESPONSE
10
MHF+2815D TURN-ON INTO FULL LOAD
Figure 22
16
10
5
2812D
2815D
0
–5
2805D
6
20
40
60
80
100
POSITIVE OUTPUT LOAD (% OF TOTAL LOAD)
–VOUT WITH SHIFT IN LOAD BALANCE
CROSS REGULATION
Figure 23
www.interpoint.com
2812D
4
COND A
2
0
2815D
–2
COND B
–4
2812D
–6
–8
–10
0
MHF+2805S&D
2805D
8
2805D
10
20
30
40
50
OUTPUT LOAD (%)
COND. A: 50% LOAD +V; 50% to 10% –V
COND. B: 50% LOAD –V; 50% to 10% +V
MHF+2805D/MHF+2812D/MHF+2815D
CROSS REGULATION
Figure 24
Page 16 of 23
MHF+ Rev L - 20091113
INPUT VOLTAGE (Volts)
–VOUT VOLTAGE CHANGE (%)
–V OUT VOLTAGE CHANGE (%)
2 ms/div
Figure 21
Figure 20
–10
VIN
15
14
MHF+2812S&D
MHF+2815S&D
13
12
10
11
12
13
14
OUTPUT POWER (Watts)
50 mV DROP
15
LOW LINE DROPOUT VS. LOAD
Figure 25
Crane Aerospace & Electronics Power Solutions
MHF+ Single, Dual and Triple DC/DC Converters
28 Volt input – 15 Watt
Typical Performance Curves: 25°C Tc , 28 VDC Vin, 100% load, free run, unless otherwise specified.
75
75
EFFICIENCY
EFFICIENCY
28 V
70
48 V
65
60
55
16 V
200 mV / div.
80
16 V
28 V
70
48 V
65
60
2
4
6
8
10
12
14
16
55
4
2
6
10
8
12
14
OUTPUT POWER (W)
OUTPUT POWER (W)
MHF+28512T EFFICIENCY
MHF+28515T EFFICIENCY
16
MHF+ 28515T STEP LINE RESPONSE
Figure 28
VIN
+5 VDC
2 V / div.
INPUT
GND
2 V / div.
INPUT
GND
+5
GND
+5 VDC
+5
GND
5 ms / div.
5 ms / div.
MHF+28512T TURN ON INTO FULL LOAD
MAIN
MHF+28512T TURN ON INTO FULL LOAD
MAIN
MHF+28515T has a similar response
MHF+28515T has a similar response
Figure 29
Figure 30
10 V / div.
11.5
VIN
–12 VDC
5 ms / div.
MHF+28512T TURN ON INTO FULL LOAD
AUXILIARIES
MHF+28515T has a similar response
Figure 31
www.interpoint.com
INPUT VOLTAGE
5 V / div.
+12 VDC
11
MHF+28515T
10.5
10
MHF+28512T
9.5
9
8.5
2
4
6
8
–15 VDC
MHF+28512T has a similar response
10 V / div.
10 V / div.
VIN
+15 VDC
5 ms / div.
INPUT V: 16 TO 40 VDC, ±15 = 250 mA EACH, +5 = 1.5 A
Figure 27
Figure 26
5 VDC
500 mV / div.
80
10
12
14
MAXIMUM OUTPUT POWER (W)
LOW LINE DROPOUT
Figure 32
Page 17 of 23
MHF+ Rev L - 20091113
16
Crane Aerospace & Electronics Power Solutions
MHF+ Single, Dual and Triple DC/DC Converter Cases
28 Volt input – 15 Watt
BOTTOM VIEW CASE E1
Projection Weld
Squared corner and dot on top
of case indicate pin one.
1.130 max. (28.70)
0.960 (24.38)
1
0.030 dia.
(0.76)
2
8
0.160 (4.06)
3
4
7
5
6
1.460 max. (37.08)
1.105 (28.07)
0.905 (22.99)
0.705 (17.91)
0.505 (12.83)
0.205 (5.21)
0.000
0.25 (6.35)
0.000
0.330 max.
(8.38)
0.000
Case dimensions in inches (mm)
Tolerance ±0.005 (0.13) for three decimal places
±0.01 (0.3) for two decimal places
unless otherwise specified
CAUTION
Heat from reflow or wave soldering may damage the device. Solder pins
individually with heat application not exceeding 300°C for 10 seconds per pin.
Materials
Header
Cold Rolled Steel/Nickel/Gold
Cover
Kovar/Nickel
Pins
#52 alloy/Gold compression glass seal.
Seal Hole: 0.080 ±0.002 (2.03 ±0.05)
Case E1, Rev D, 20091105
Please refer to the numerical dimensions for accuracy. All information is believed to
be accurate, but no responsibility is assumed for errors or omissions. Interpoint
reserves the right to make changes in products or specifications without notice.
Copyright © 1999-2009 Interpoint Corp. All rights reserved.
Figure 33: Case E1— Single
www.interpoint.com
and
Dual Models
Page 18 of 23
MHF+ Rev L - 20091113
Crane Aerospace & Electronics Power Solutions
MHF+ Single, Dual and Triple DC/DC Converter Cases
28 Volt input – 15 Watt
BOTTOM VIEW CASE E2
1
3
4
5
8
7
6
1.105 (28.07)
0.960 (24.38)
Squared corner and dot on top
of case indicate pin one.
0.905 (22.99)
1.130 max. (28.70)
0.705 (17.91)
Projection Weld
2
0.030 dia.
(0.76)
9
0.160 (4.06)
1.460 max. (37.08)
0.505 (12.83)
0.205 (5.21)
0.000
0.25 (6.35)
0.000
0.330 max
(8.38)
0.000
Case dimensions in inches (mm)
Tolerance ±0.005 (0.13) for three decimal places
±0.01 (0.3) for two decimal places
unless otherwise specified
CAUTION
Heat from reflow or wave soldering may damage the device. Solder pins
individually with heat application not exceeding 300°C for 10 seconds per pin.
Materials
Header
Cold Rolled Steel/Nickel/Gold
Cover
Kovar/Nickel
Pins
#52 alloy/Gold compression glass seal.
Seal Hole: 0.080 ±0.002 (2.03 ±0.05)
Case E2, Rev D, 20091105
Please refer to the numerical dimensions for accuracy. All information is believed to
be accurate, but no responsibility is assumed for errors or omissions. Interpoint
reserves the right to make changes in products or specifications without notice.
Copyright © 1999-2009 Interpoint Corp. All rights reserved.
Figure 34: Case E2 — Triple Models
www.interpoint.com
Page 19 of 23
MHF+ Rev L - 20091113
Crane Aerospace & Electronics Power Solutions
MHF+ Single, Dual and Triple DC/DC Converter Cases
28 Volt input – 15 Watt
BOTTOM VIEW CASE G1
Flanged cases: Designator "F" required in Case Option position of model number
Projection Weld
Squared corner and dot on top
of case indicate pin one.
1.130 max. (28.70)
0.960
(24.38)
1
0.030 dia.
(0.76)
0.560
(14.22)
2
3
4
2 x Dia 0.128 (3.25)
5
2 x R 0.130 (3.30)
8
0.160
(4.06)
7
6
1.590 (40.39)
1.105 (28.07)
0.905 (22.99)
0.705 (17.91)
0.505 (12.83)
0.205 (5.21)
0.000
0.140 (3.56)
0.25 (6.35)
0.000
0.330 max.
(8.38)
0.000
(2.005 max (50.93))
Flange thickness: 0.047 (1.19)
Case dimensions in inches (mm)
Tolerance ±0.005 (0.13) for three decimal places
±0.01 (0.3) for two decimal places
unless otherwise specified
CAUTION
Heat from reflow or wave soldering may damage the device. Solder pins
individually with heat application not exceeding 300°C for 10 seconds per pin.
Materials
Header
Cold Rolled Steel/Nickel/Gold
Cover
Kovar/Nickel
Pins
#52 alloy/Gold compression glass seal.
Seal Hole: 0.080 ±0.002 (2.03 ±0.05)
Case G1, Rev C, 20091105
Please refer to the numerical dimensions for accuracy. All information is believed to
be accurate, but no responsibility is assumed for errors or omissions. Interpoint
reserves the right to make changes in products or specifications without notice.
Copyright © 1999-2009 Interpoint Corp. All rights reserved.
Figure 35: Case G1 — Single
www.interpoint.com
and
Dual Models
Page 20 of 23
MHF+ Rev L - 20091113
Crane Aerospace & Electronics Power Solutions
MHF+ Single, Dual and Triple DC/DC Converter Cases
28 Volt input – 15 Watt
BOTTOM VIEW CASE G2
Flanged cases: Designator "F" required in Case Option position of model number
Projection Weld
Squared corner and dot on top
of case indicate pin one.
1.130 max. (28.70)
0.960
(24.38)
1
2
3
4
2 x Dia 0.128 (3.25)
5
2 x R 0.130 (3.30)
8
7
6
1.105 (28.07)
9
0.160
(4.06)
0.905 (22.99)
0.560
(14.22)
0.705 (17.91)
0.030 dia.
(0.76)
1.590 (40.39)
0.505 (12.83)
0.205 (5.21)
0.000
0.140 (3.56)
0.25 (6.35)
0.000
0.330 max.
(8.38)
0.000
(2.005 max (50.93))
Flange thickness: 0.047 (1.19)
Case dimensions in inches (mm)
Tolerance ±0.005 (0.13) for three decimal places
±0.01 (0.3) for two decimal places
unless otherwise specified
CAUTION
Heat from reflow or wave soldering may damage the device. Solder pins
individually with heat application not exceeding 300°C for 10 seconds per pin.
Materials
Header
Cold Rolled Steel/Nickel/Gold
Cover
Kovar/Nickel
Pins
#52 alloy/Gold compression glass seal.
Seal Hole: 0.080 ±0.002 (2.03 ±0.05)
Case G2, Rev D, 20091105
Please refer to the numerical dimensions for accuracy. All information is believed to
be accurate, but no responsibility is assumed for errors or omissions. Interpoint
reserves the right to make changes in products or specifications without notice.
Copyright © 1999-2009 Interpoint Corp. All rights reserved.
Figure 36: Case G2 — Triple Models
www.interpoint.com
Page 21 of 23
MHF+ Rev L - 20091113
Crane Aerospace & Electronics Power Solutions
MHF+ Single, Dual and Triple DC/DC Converters
28 Volt input – 15 Watt
STANDARD AND /ES (NON-QML) AND /883 (CLASS H, QML)
PRODUCT ELEMENT EVALUATION
COMPONENT-LEVEL TEST
PERFORMED
STANDARD AND /ES
NON-QML 1
M/S 2
/883
CLASS H QML
P3
M/S 2
element electrical (probe)
yes
no
yes
yes
element visual
no
no
yes
yes
internal visual
no
n/a
yes
n/a
Final electrical
no
no
yes
yes
Wire bond evaluation 4
no
no
yes
yes
slam™/C-sam:
input capacitors only
(add’l test, not req. by h)
no
no
no
yes
notes:
1. Standard and /eS, non-QMl products, do no meet all of the requirements of
Mil-PrF-38534.
2. M/S = active components (Microcircuit and Semiconductor die)
3. P = Passive components
4. not applicable to eMi filters that have no wire bonds.
definitions:
element evaluation: Component testing/screening per Mil-Std-883 as determined by Mil-PrF-38534
SlaM™: Scanning laser acoustic Microscopy
C-SaM: C - Mode Scanning acoustic Microscopy
Screening Table 1: Element Evaluation
www.interpoint.com
P3
Page 22 of 23
MHF+ Rev L - 20091113
Crane Aerospace & Electronics Power Solutions
MHF+ Single, Dual and Triple DC/DC Converters
28 Volt input – 15 Watt
STANDARD AND /ES (NON-QML) AND /883 (CLASS H, QML)
PRODUCT ENVIRONMENTAL SCREENING
125°C STANDARD
NON-QML1
125°C /ES
NON-QML1
/883
CLASS H QML
Pre-cap inspection
method 2017, 2032
yes
yes
yes
temperature Cycle (10 times)
method 1010, Cond. C, -65°C to 150°C, ambient
method 1010, Cond. b, -55°C to 125°C, ambient
no
no
no
yes
yes
no
Constant acceleration
method 2001, 3000 g
method 2001, 500 g
no
no
no
yes
yes
no
burn-in 2
method 1015, 125°C case, typical
96 hours
160 hours
no
no
yes
no
no
yes
Final electrical test mil-PrF-38534, group a
subgroups 1 through 6: -55°C, +25°C, +125°C case
subgroups 1 and 4: +25°C case
no
yes
no
yes
yes
no
hermeticity test
Fine leak, method 1014, Cond. a
gross leak, method 1014, Cond. C
gross leak, dip (1 x 10-3)
no
no
yes
yes
yes
no
yes
yes
no
Final visual inspection
method 2009
yes
yes
yes
TEST PERFORMED
test methods are referenced to Mil-Std-883 as determined by Mil-PrF-38534.
notes:
1. Standard and /eS, non-QMl products, do not meet all of the requirements of Mil-PrF-38534.
2. Burn-in temperature designed to bring the case temperature to +125°C
Screening Table 2: Environmental Screening
MHF+ Single, Dual and Triple. MHF+ Rev L - 20091113 This revision supersedes all previous releases. All technical information is believed
to be accurate, but no responsibility is assumed for errors or omissions. Interpoint reserves the right to make changes in products or
specifications without notice. MHF+ Series is a trademark of Interpoint. Copyright © 1999 - 2009 Interpoint Corporation. All rights reserved.
www.interpoint.com
Page 23 of 23
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