Crane MFL2828S/883 Mfl single and dual dc/dc converter Datasheet

Crane Aerospace & Electronics Power Solutions
MFL Single and Dual DC/DC Converters
28 VOLT INPUT – 65 WATT
FEATURES
•
•
•
•
•
•
•
•
•
•
•
•
•
•
–55° to +125°C operation
16 to 40 VDC input
Fully Isolated
Magnetic feedback
Fixed frequency, 600 kHz typical
Topology – Single Ended Forward
50 V for up to 120 ms transient protection
Inhibit (input & output side)
Sync function (in and out)
Output trim on single output models
Indefinite short circuit protection
Remote sense on single output models
Up to 87% efficiency / 43 W/in3
Parallelable up to 148 watts
MODELS
VDC OUTPUT
SINGLE
3.3
5
12
15
28
Other output voltages
available upon request,
including 2 V, 8 V and
54 V single.
DESCRIPTION
The MFL Series™ 28-volt DC/DC converters are rated up to 65
watts of output power over a –55°C to +125°C temperature range
with a 28 VDC nominal input. On dual output models up to 70% of
the rated output power can be drawn from either the positive or
negative output. Current sharing allows the units to be paralleled for
total power of up to 148 watts. The welded, hermetically sealed
package is only 3.005 x 1.505 x 0.400 inches, giving the series an
overall power density of up to 43 watts per cubic inch.
DESIGN FEATURES
The MFL Series converters are switching regulators that use a
quasi-square wave, single ended forward converter design with a
constant switching frequency of 600 kHz.
Isolation between input and output circuits is provided with a transformer in the forward path and a wide bandwidth magnetic coupling
in the feedback control loop. The MFL uses a unique dual loop feedback technique that controls output current with an inner feedback
loop and an output voltage with a cascaded voltage mode feedback
loop.
The additional secondary current mode feedback loop improves
transient response in a manner similar to primary current mode
control and allows for ease of paralleling, but without the cost and
complexity.
The constant frequency, pulse-width modulated converters use a
quasi-square wave single-ended forward design. Tight load regulation is achieved through a wide-bandwidth magnetic feedback
circuit. The output on single MFL models can be trimmed (see
Figure 1 for voltage changes with different resistor values).
Crane Aerospace & Electronics
Electronics Group (Interpoint Brand)
PO Box 97005 • Redmond WA 98073-9705
425.882.3100 • [email protected]
www.craneae.com
DUAL
±5
±12
±15
INHIBIT
The MFL Series converters have two TTL compatible inhibit terminals (INH1 and INH2) that can be used to disable power conversion,
resulting in a very low quiescent input current and no generation of
switching noise. An open collector TTL compatible low (<0.8 volts)
is required to inhibit the converter between INH1 (pin 4) and Input
Common (pin 2). An open collector TTL compatible low (<0.5 volts)
is required to inhibit the converter between INH2 (pin 12) and Output
Common (pin 8). The application of intermediate voltages to these
pins (1.5 to 10.5 volts) should be avoided.
SYNC
Converters may be synced to an external clock (525 to 675 kHz) or
to one another by using the sync in or out pins. The nominal freerun switching frequency is 600 kHz.
CURRENT AND PARALLEL OPERATION
Multiple MFL converters may be used in parallel to drive a common
load (see Figure 2). In this mode of operation the load current is
shared by two or three MFL converters. In current sharing mode,
one MFL converter is designated as a master. The SLAVE pin (pin
11) of the master is left unconnected and the MSTR/INH2 pin (pin
12) of the master is connected to the SLAVE pin (pin 11) of the slave
units. The units designated as slaves have the MSTR/INH2 pin (pin
12) connected to the SNS RTN pin (pin 9). Figure 2 shows the
typical setup for two or three units in parallel. Note that synchronizing the units together (though shown in the figure) is not required
for current sharing operation. A second slave unit may be placed in
parallel with a master and slave; this requires the TRI pin (pin 3) of
the master unit to be connected to the SNS RTN pin (pin 9).
When paralleled, 76% of the total combined power ratings of the
MFL converters are available at the load. Overload and short circuit
performance are not adversely affected during parallel operation.
Page 1 of 13
Rev D - 20060601
Crane Aerospace & Electronics Power Solutions
MFL Single and Dual DC/DC Converters
28 VOLT INPUT – 65 WATT
OPERATING CONDITIONS AND CHARACTERISTICS
SYNC AND INHIBIT (INH1, INH2)
Input Voltage Range
• 16 to 40 VDC continuous
• 50 V for 120 msec transient
Output Power
• 50 to 65 watts depending on model
Lead Soldering Temperature (10 sec per lead)
• 300°C
Storage Temperature Range (Case)
• –65°C to +150°C
Power Dissipation (Pd)
• 14 watts (16 watts MFL2805S, MFL2805D)
Sync In (525 to 675 kHz)
• Duty cycle 40% min, 60% max
• Logic low 0.8 V max
• Logic high 4.5 V min, 5 V max
• Referenced to input common
Sync Out
• Referenced to input common
Inhibit (INH1, INH2) TTL Open Collector
• Logic low (output disabled)
INH1 referenced to input common
Logic low 0.8 V max
Inhibit pin current 10 mA max
INH2 referenced to output common
Logic low 0.5 V max
Inhibit pin current 5 mA max
• Logic high (output enabled)
Open collector
Case Operating Temperature (Tc)
• –55°C to +125°C full power
• –55°C to +135°C absolute
Derate Output Power/Current
• Linearly from 100% at 125°C to 0% at 135°C
• MFL283R3S: linearly from 100% at 100°C to
80% at 125°C and to 0% at 135°C
Output Voltage Temperature Coefficient
• 100 ppm/°C typical
Input to Output Capacitance
• 150 pF, typical
Current Limit
• 125% of full load typical
Isolation
• 100 megohm minimum at 500 V
Audio Rejection
• 50 dB typical
Conversion Frequency (-55°C to 125°C)
• Free run mode 600 kHz typical
525 kHz. min, 675 kHz max
Inhibit Pin Voltage (unit enabled)
• INH1 = 9 to12 V, INH2 = 6 to 9 V
MECHANICAL AND ENVIRONMENTAL
Size (maximum)
3.005 x 1.505 x 0.400 inches (76.33 x 38.23 x 10.16 mm)
See case U for dimensions.
Case options V, W, Y and Z are available by special order.
Weight (maximum)
86 grams
Screening
Standard, ES, or /883 (Class H, QML). See “883, Class H, QML Products – Element Evaluation” and “883, Class H, QML Products – Environmental
Screening” for more information.
www.craneae.com
Page 2 of 13
Rev D - 20060601
Crane Aerospace & Electronics Power Solutions
MFL Single and Dual DC/DC Converters
28 VOLT INPUT – 65 WATT
PIN OUT
Pin
1
2
3
4
5
6
7
8
9
10
11
12
Single Output
Positive Input
Input Common
Triple (TRI)
Inhibit 1 (INH1)
Sync Out
Sync In
Positive Output
Output Common
Sense Return
Positive Sense
Slave
Master/ Inhibit 2
PINS NOT IN USE
MFL2828S
Positive Input
Input Common
Triple (TRI)
Inhibit 1 (INH1)
Sync Out
Sync In
Positive Output
No connection
Output Common
No connection
Slave
Master/ Inhibit 2
Dual Output
Positive Input
Input Common
Triple (TRI)
Inhibit 1 (INH1)
Sync Out
Sync In
Positive Output
Output Common
Negative Output
No connection
Slave
Master / Inhibit 2
TR1
Master
Slave
Sync in
Inhibit (INH1)
Inhibit (INH2)
Sync Out
Sense Lines
Leave unconnected
Leave unconnected
Leave unconnected
Connect to input common
Leave unconnected
Leave unconnected
Leave unconnected
Must be connected to
appropriate outputs
Angled corner indicates pin one.
1
12
2
11
3
4
5
6
TOP VIEW
MFL
(Pin side, marked side)
See case U for dimensions.
Case optioins V, W, Y and Z are available by
special order.
FIGURE 1: PIN OUT
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Page 3 of 13
Rev D - 20060601
10
9
8
7
Crane Aerospace & Electronics Power Solutions
MFL Single and Dual DC/DC Converters
28 VOLT INPUT – 65 WATT
SINGLE OUTPUT MODELS CONNECTION DIAGRAMS - SENSE AND PARALLEL
28V
+
–
Inhibit
1
Positive Input
2
Input Common
3
TR1
4
INH1
5
Pos. Sense 10
9
Sense Return
Sync Out
6
Sync In
MSTR/INH2 12
Slave 11
Output Common
Sync In
Positive Output
–
8
7
+
RL
REMOTE SENSE CONNECTION
28V
+
–
1
Positive Input
2
Input Common
3
TR1
4
Inhibit
INH1
5
Sync Out
6
Sync In
MSTR/INH2 12
11
Slave
10
Pos. Sense
9
Sense Return
8
Output Common
7
Positive Output
Sync In
RA
–
+
RL
OUTPUT VOLTAGE ADJUST CONNECTION
RA (OHMS)
VOUT INCREASE
(VOLT)
0.1
5–V
70
12–V
25
15–V
20
3.3–V
120
0.2
140
50
40
240
0.3
210
75
60
360
0.4
280
100
80
480
0.5
350
125
100
600
FIGURE 2: SENSE CONNECTIONS AND TRIM TABLE
28V
Inhibit
+
–
1
Positive Input
2
Input Common
3
TR1
4
5
Sync In
6
MSTR/INH2 12
Slave 11
Pos. Sense
MASTER
INH1
Sync Out
Sense Return
Output Common
Sync In
Positive Output
10
9
7
CONNECT ONLY WHEN 2 SLAVES ARE USED
1
Positive Input
2
Input Common
3
TR1
INH1
5
Sync Out
6
Sync In
1
Positive Input
2
Input Common
3
TR1
4
INH1
5
Sync Out
6
MSTR/INH2 12
Slave 11
Pos. Sense 10
Sense Return 9
SLAVE 1
4
Output Common 8
7
Positive Output
MSTR/INH2 12
Slave 11
Pos. Sense 10
Sense Return 9
Output Common 8
SLAVE 2
Sync In
Positive Output
7
FIGURE 3: PARALLEL CONNECTIONS
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Page 4 of 13
Rev D - 20060601
–
8
+
RL
Crane Aerospace & Electronics Power Solutions
MFL Single and Dual DC/DC Converters
28 VOLT INPUT – 65 WATT
SMD NUMBERS
MODEL NUMBERING KEY
MFL
STANDARD MICROCIRCUIT
DRAWING (SMD)
28 05 S / ES
Base Model
Input Voltage
IN PROCESS
5962-9316301HXC
5962-9316201HXC
5962-9316101HXC
IN PROCESS
5962-9319101HXC
5962-9319201HXC
5962-9319301HXC
Output Voltage
Number of Outputs
(S = single, D = dual)
Screening
(Standard screening has no designator
in this position.)
MFL SERIES
SIMILAR PART
MFL283R3S
MFL2805S/883
MFL2812S/883
MFL2815S/883
MFL2828S/883
MFL2805D/883
MFL2812D/883
MFL2815D/883
For exact specifications for an SMD product, refer to the
SMD drawing. SMDs can be downloaded from:
http://www.dscc.dla.mil/programs/smcr
Model Selection
MFL28
Base model
Vout value
number of outputs
screening
Choose one from each of the following rows
Vout value
for singles: 3R3, 5, 12, 15, 28
for duals: 5, 12, 15
“R” = decimal point, 3R3 = 3.3VDC
Number of outputs
S (single) or D (dual)
Screening
standard screening, leave blank
www.craneae.com
Page 5 of 13
Rev D - 20060601
/ES (ES screening), /883 (Class H, QML)
Crane Aerospace & Electronics Power Solutions
MFL Single and Dual DC/DC Converters
28 VOLT INPUT – 65 WATT
Electrical Characteristics: –55°C to +125° C Tc, 28 VDC Vin, 100% load, free run, unless otherwise specified.
SINGLE OUTPUT MODELS
MFL283R3S
MFL2805S
PARAMETER
OUTPUT VOLTAGE
CONDITION
Tc = 25°C
MIN
3.26
OUTPUT CURRENT
VIN = 16 TO 40 VDC
0
— 12.122
0
—
10
0
—
5
A
OUTPUT POWER
VIN = 16 TO 40 VDC
0
—
402
0
—
50
0
—
60
W
OUTPUT RIPPLE
VOLTAGE 10 k - 2 MHz
Tc = 25°C
Tc = –55°C to +125°C
—
—
10
10
35
50
—
—
15
30
35
50
—
—
30
45
75
100
mV p-p
LINE REGULATION
VIN = 16 to 40 VDC
—
0
20
—
0
20
—
0
20
mV
LOAD REGULATION
NO LOAD TO FULL
—
—
40
—
—
20
—
—
20
mV
CONTINUOUS
16
28
40
16
28
40
16
28
40
VDC
INPUT VOLTAGE
NO LOAD TO FULL
INPUT CURRENT
TYP MAX
3.3 3.34
MIN
4.95
MFL2812S
TYP MAX
5.00 5.05
MIN TYP MAX
11.88 12.00 12.12
UNITS
VDC
TRANSIENT1, 3 50 ms
—
—
50
—
—
50
—
—
50
V
NO LOAD
—
70
100
—
70
120
—
50
100
mA
INHIBITED - INH1
—
9
14
—
9
14
—
9
14
INHIBITED - INH2
—
35
70
—
35
70
—
35
70
10 kHz - 10 MHz
—
15
50
—
15
50
—
15
50
mA pp
Tc = 25°C
POWER DISSIPATION
73
—
—
77
80
—
83
86
—
%
SHORT CIRCUIT
Tc = 25°C
—
12.5
20
—
12.5
16
—
10
14
W
RECOVERY1
—
1.5
4
—
1.5
4
—
1.5
4
ms
50% – 100% – 50%
TRANSIENT
—
200
400
—
250
350
—
450
600
mV pk
RECOVERY1, 4
—
1.5
3.0
—
1.5
3.0
—
1.5
3.0
ms
16 – 40 – 16 VDC
TRANSIENT1, 5
RECOVERY1, 4
—
—
250
200
300
600
—
—
250
200
300
300
—
—
250
200
400
300
mV pk
μs
DELAY
OVERSHOOT1
Tc=25°C1, 7
—
—
—
3.5
0
—
6
25
1000
—
—
—
3.5
0
—
6
25
1000
—
—
—
3.5
0
—
6
50
1000
ms
mV pk
μF
mA
INPUT RIPPLE
CURRENT
EFFICIENCY
LOAD FAULT
STEP LOAD RESP.
STEP LINE RESP.
START-UP6
COUT
Notes
1. Guaranteed by design, not tested.
2. MFL283R3S current and power maximum are at 25°C only.
3. Unit will shut down above approximately 45V but will be undamaged and
will restart when voltage drops into normal range.
4. Recovery time is measured from application of the transient to point at
which Vout is within 1% of final value.
www.craneae.com
5. Transition time > 10 μs.
6. Tested on release from inhibit.
7. Shall not compromise DC performance
Page 6 of 13
Rev D - 20060601
Crane Aerospace & Electronics Power Solutions
MFL Single and Dual DC/DC Converters
28 VOLT INPUT – 65 WATT
Electrical Characteristics: –55°C to +125° C Tc, 28 VDC Vin, 100% load, free run, unless otherwise specified.
SINGLE OUTPUT MODELS
PARAMETER
MFL2828S2
MFL2815S
CONDITION
MIN
TYP MAX
TYP MAX2
UNITS
OUTPUT VOLTAGE
Tc = 25°C
OUTPUT CURRENT
VIN = 16 TO 40 VDC
0
—
4.33
0
—
2.32
A
OUTPUT POWER
VIN = 16 TO 40 VDC
0
—
65
0
—
65
W
OUTPUT RIPPLE
VOLTAGE 10 k - 2 MHz
14.85 15.00 15.15
MIN
27.72 28.00 28.28
Tc = 25°C
—
30
85
—
100
200
Tc = –55°C to +125°C
—
45
110
—
—
—
VDC
mV p-p
LINE REGULATION
VIN = 16 to 40 VDC
—
0
20
—
20
60
mV
LOAD REGULATION
NO LOAD TO FULL
—
0
20
—
20
75
mV
INPUT VOLTAGE
NO LOAD TO FULL
CONTINUOUS
TRANSIENT1, 3 50 ms
16
—
28
—
40
50
16
—
28
—
40
50
VDC
V
NO LOAD
INHIBITED - INH1
—
—
50
9
100
14
—
—
60
9
100
14
mA
INHIBITED - INH2
—
35
70
—
35
70
10 kHz - 10 MHz
—
15
50
—
20
50
mA pp
Tc = 25°C
POWER DISSIPATION
84
87
—
83
86
—
%
INPUT CURRENT
mA
INPUT RIPPLE
CURRENT
EFFICIENCY
LOAD FAULT
STEP LOAD RESP.
STEP LINE RESP.
START-UP6
COUT
SHORT CIRCUIT
Tc = 25°C
—
10
14
—
7
14
W
RECOVERY1
—
1.5
4
—
1.0
4
ms
50% – 100% – 50%
TRANSIENT
—
500
600
—
800 1400
RECOVERY1, 4
—
1.5
3.0
—
1.5
3.0
ms
16 – 40 – 16 VDC
TRANSIENT1, 5
RECOVERY1, 4
—
—
250
200
400
300
—
—
250
200
800
400
mV pk
μs
DELAY
OVERSHOOT1,
Tc=25°C1, 7
—
—
—
3.5
0
—
6
50
1000
—
—
—
3.5
0
—
6
100
1000
ms
mV pk
μF
Notes
1. Guaranteed by design, not tested.
2. MFL2828S specifiications are at 25°Tc.
3. Unit will shut down above approximately 45V but will be undamaged and
will restart when voltage drops into normal range.
4. Recovery time is measured from application of the transient to point at
which Vout is within 1% of final value.
www.craneae.com
5. Transition time > 10 μs.
6. Tested on release from inhibit.
7. Shall not compromise DC performance
Page 7 of 13
Rev D - 20060601
mV pk
Crane Aerospace & Electronics Power Solutions
MFL Single and Dual DC/DC Converters
28 VOLT INPUT – 65 WATT
Electrical Characteristics: –55°C to +125° C Tc, 28 VDC Vin, 100% load, free run, unless otherwise specified.
DUAL OUTPUT MODELS
PARAMETER
OUTPUT VOLTAGE
CONDITIONS
+VOUT
Tc = 25°C
–VOUT
MFL2805D
MIN TYP MAX
4.95 5.00 5.05
4.92 5.00 5.08
MFL2812D
MIN TYP MAX
11.88 12.00 12.12
11.82 12.00 12.18
MFL2815D
MIN TYP MAX
14.85 15.00 15.15
14.77 15.00 15.23
UNITS
VDC
OUTPUT CURRENT2
EACH OUTPUT
0
—
7
0
—
3.5
0
—
3.03
VIN = 16 TO 40 VDC
TOTAL OUTPUT
0
—
10
0
—
5
0
—
4.34
VIN = 16 TO 40 VDC
0
—
50
0
—
60
0
—
65
W
10 kHz - 2 MHz
mV p-p
OUTPUT POWER2
A
OUTPUT RIPPLE
VOLTAGE +/– VOUT
—
50
100
—
50
120
—
50
150
LINE REGULATION
+VOUT
—
0
50
—
0
50
—
0
50
VIN = 16 TO 40 VDC
–VOUT
—
25
100
—
25
100
—
25
100
LOAD REGULATION
NO LOAD TO FULL
+VOUT
–VOUT
—
—
0
25
50
100
—
—
10
50
50
120
—
—
10
50
50
150
mV
SEE NOTE 3
SEE NOTE 4
—
—
5
3
8
6
—
—
2
2
4
4
—
—
2
2
4
4
%
CONTINUOUS
TRANSIENT1, 5 50 ms.
NO LOAD
INHIBITED - INH1
INHIBITED - INH2
16
0
—
—
—
28
—
50
9
35
40
50
120
14
70
16
0
—
—
—
28
—
50
9
35
40
50
100
14
70
16
0
—
—
—
28
—
50
9
35
40
50
100
14
70
VDC
V
mA
10 kHz - 10 MHz
—
15
50
—
15
50
—
15
50
mA p-p
BALANCED LOAD
POWER DISSIPATION
77
80
—
83
86
—
84
87
—
%
SHORT CIRCUIT
Tc = 25°C
RECOVERY1
—
—
12.5
1.5
16
4.0
—
—
10
1.5
14
4.0
—
—
10
1.5
14
4.0
W
ms
STEP LOAD RESP.
± VOUT
50 %–100%– 50% LOAD
TRANSIENT
—
250
350
—
450
600
—
500
600
mV pk
—
1.5
3.0
—
1.5
3.0
—
1.5
3.0
ms
STEP LINE RESP.
± VOUT
RECOVERY1, 6
16 – 40 – 16 VIN
TRANSIENT1, 7
—
250
300
—
250
400
—
250
400
mV pk
RECOVERY1, 6
—
200
300
—
200
300
—
200
300
μs
DELAY
—
3.5
6
—
3.5
6
—
3.5
6
ms
OVERSHOOT1
—
0
25
—
0
50
—
0
50
mV p
Tc=25°C1,9
—
—
500
—
—
500
—
—
500
μF
CROSS REGULATION
Tc = 25°C
INPUT VOLTAGE
NO LOAD TO FULL
INPUT CURRENT
INPUT RIPPLE
CURRENT
EFFICIENCY 25°C Tc
LOAD FAULT
START–UP8
COUT
mV
mA
Notes
1. Guaranteed by design, not tested.
2. Up to 70% of the total output power is available from either output
providing the opposite output is simultaneously carrying 30% of the
total power.
3. Effect on negative Vout from 50%/50% loads to 70%/30% or
30%/70% loads.
4. Effect on negative Vout from 50%/50% loads to +Pout=50%,
-Pout=10%.
www.craneae.com
5. Unit will shut down above approximately 45V but will be undamaged
and will restart when voltage drops into normal range.
6. Recovery time is measured from application of the transient to point at
which Vout is within 1% of final value.
7. Transition time > 10 μs.
8. Tested on release from inhibit.
9. Shall not compromise DC performance
Page 8 of 13
Rev D - 20060601
Crane Aerospace & Electronics Power Solutions
MFL Single and Dual DC/DC Converters
28 VOLT INPUT – 65 WATT
Typical Performance Curves: 25°C Tc , 28 VDC Vin, 100% load, free run, unless otherwise specified.
90
90
16V
28V
75
40V
70
28V
80
75
Efficiency (%)
80
40V
70
60
10
20
30
40
Output (Watts)
60
10
50
28V
80
75
40V
70
65
65
65
16V
85
85
Efficiency (%)
Efficiency (%)
85
90
16V
20
30
40
50
60
10
60
20
30
40
50
60 65
Output Power (Watts)
Output Power (Watts)
MFL2805S & MFL2805D Efficiency
MFL2812S & MFL2812D Efficiency
MFL2815S & MFL2815D Efficiency
FIGURE 4
FIGURE 5
FIGURE 6
90
0.
16 VIN
75
70
65
0
10
20 30 40 50 60 70
40.
60.
80.
100.
0.1
1
10
Output Power (Watts)
Frequency (kHz)
MFL2828S Efficiency
MFL Series Audio Rejection
20V/div.
100mV/div.
Vin
100
50 μs/div
16 to 40 V
MFL2805S Step Line Response
FIGURE 9
FIGURE 8
FIGURE 7
100% to 50%
Vout
20V/div.
60
100mV/div.
40 VIN
20.
20V/div.
28 VIN
80
Attenuation (dB)
Efficiency (%)
85
Vin
Vin
1ms/div
MFL2805S Step Load Response
FIGURE 10
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100mV/div.
50% to 100%
1V/div.
+Vout
Vout
1ms/div
No Load
MFL2805S Turn On Response
FIGURE 11
Page 9 of 13
Rev D - 20060601
–Vout
50 μs/div
16 to 40 V
MFL2815D Step Line Response
FIGURE 12
Crane Aerospace & Electronics Power Solutions
MFL Single and Dual DC/DC Converters
28 VOLT INPUT – 65 WATT
Typical Performance Curves: 25°C Tc , 28 VDC Vin, 100% load, free run, unless otherwise specified.
100% to 50%
1ms/div
MFL2815D Step Load Response
VIN
+Vout
–Vout
1ms/div
No Load
MFL2815D Turn On Response
–Vout Voltage Change (%)
5V/div.
200mV/div.
–Pout = 32.5W
20V/div.
8
50% to 100%
6
MFL2805D
4
2
MFL2812D
0
MFL2815D
–2
–4
–6
–8
30
40
50
60
Cross Regulation
FIGURE 14
FIGURE 13
Input Voltage (Volts)
16
15
MFL2815S & 15D
14
13
MFL2805S & 5D
12
MFL2812S & 12D
11
10
20
30
40
50
60 65
Output Power (Watts)
Low Line Dropout
FIGURE 16
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Page 10 of 13
Rev D - 20060601
70
Output Load (%)
+Pout 80 to 20 %, –Pout 20 to 80%
FIGURE 15
Crane Aerospace & Electronics Power Solutions
MFL Single and Dual DC/DC Converter Cases
28 VOLT INPUT – 65 WATT
TOP VIEW CASE U
Flanged case, short-leaded
*Does not require designator in Case Option position of model number.
Seam Seal
Angled corner
indicates pin one.
0.23 (5.8) Lead Length
0.128 dia
(3.25).
1.505 (38.23) max.
0.040 dia
(1.02)
1.380 (35.05)
1.250 (31.75)
1
12
1.050 (26.67)
2
11
0.850 (21.59)
3
10
0.650 (16.51)
4
9
0.450 (11.43)
5
8
0.250 (6.35)
6
7
Seal hole: 0.100 ±0.002 (2.54 ±0.05)
0.220 (5.59
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
Case U, Rev C, 20060302
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 © 1999-2006 Interpoint Corp. All rights reserved.
FIGURE 17: CASE U
www.craneae.com
Page 11 of 13
Rev D - 20060601
0.050 (1.27)
0.000
0.400 (10.16) max.
2.880 (73.15)
3.005 (76.33) max.
2.750 (69.85)
0.000
0.120 (3.05)
0.250 (6.35)
0.120 (3.05)
0.000
Crane Aerospace & Electronics Power Solutions
MFL Single and Dual DC/DC Converters
28 VOLT INPUT – 65 WATT
883, CLASS H, QML PRODUCTS – ELEMENT EVALUATION
ELEMENT EVALUATION
STANDARD
(NON-QML)1
M/S2
P3
TEST PERFORMED
(COMPONENT LEVEL)
CLASS H,
QML
2
M/S
P3
Element Electrical (probe)
yes
no
yes
yes
Element Visual
no
no
yes
yes
Internal Visual
no
no
yes
no
Final Electrical
no
no
yes
yes
Wire Bond Evaluation4
no
no
yes
yes
SLAM™/C-SAM:
Input Capacitors only
(Add’l test, not req. by H or K)
no
no
no
yes
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
Notes:
1. 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
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Page 12 of 13
Rev D - 20060601
Crane Aerospace & Electronics Power Solutions
MFL Single and Dual DC/DC Converters
28 VOLT INPUT – 65 WATT
883, CLASS H, QML PRODUCTS – ENVIRONMENTAL
SCREENING
TEST
125°C
STANDARD
non-QML
125°C
/ES
non-QML
Class H
/883
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, 500g
no
no
no
yes
yes
no
Burn-In
Method 1015, 160 hours at 125°C case, typical
96 hours at 125°C case, typical
no
no
no
yes
yes
no
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 methods are referenced to MIL-STD-883 as determined by MIL-PRF-38534.
MFL Single and Dual Rev D - 20060601. This revision supercedes 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. MFL Series is a trademark of Interpoint.
Copyright © 1999 - 2006 Interpoint Corporation. All rights reserved. www.craneae.com
Page 13 of 13
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