Crane MFLHP2812S/ES Mflhp single and dual dc/dc converter Datasheet

Crane Aerospace & Electronics Power Solutions
MFLHP Single and Dual DC/DC Converters
28 VOLT INPUT – 100 WATT
FEATURES
• -55° to +100°C operation
• 19 to 40 VDC input
• Fully Isolated
• Magnetic feedback
• Fixed frequency, 600 kHz typical
• Topology – Single Ended Forward
• 80 V for up to 50 ms transient protection
MODELS
VDC OUTPUT
• Inhibit function – input and output
• Sync function – input and output
• Output trim on single output models
• Indefinite short circuit protection
• Remote sense on single output models
SINGLE
DUAL
5
12
15
±5
±12
±15
• Up to 87% efficiency
• Parallelable up to 228 watts
DESCRIPTION
The MFLHP Series™ 28 volt DC/DC converters are rated up to
100 watts output power over a -55° to +100°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 outputs. Current sharing allows the units to be paralleled for total power of up to 228 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 67 watts per cubic inch.
DESIGN FEATURES
The MFLHP 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 wide bandwidth magnetic
coupling in the feedback control loop. The MFLHP Series uses a
unique dual loop feedback technique that controls output current
with an inner feedback loop and 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.
Tight load regulation is achieved through a wide-bandwidth
magnetic feedback circuit. The output voltage on single MFLHP
models can be easily trimmed by adding an external resistor.
(See Figure 1 for voltage changes with different resistor values.)
INHIBIT
The MFLHP Series converters have two inhibit terminals (INH1
and INH2) that can be used to disable power conversion,
Crane Aerospace & Electronics
Electronics Group (Interpoint Brand)
PO Box 97005 • Redmond WA 98073-9705
425.882.3100 • [email protected]
www.craneae.com
resulting in a very low quiescent input current. A logic low (<0.8
volts) is required between INH1 (pin 4) and Input Common (pin
2) to inhibit the converter. A logic low (<0.5 volts) is required
between INH2 (pin 12) and Output Common (pin 8) to inhibit the
converter. 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
free-run switching frequency is 600 kHz.
CURRENT SHARING AND PARALLEL OPERATION
Multiple MFLHP converters may be used in parallel to drive a
common load (see Figure 3). In this mode of operation the load
current is shared by two or three MFLHP converters. In current
sharing mode, one MFLHP 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 3 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
MFLHP converters are available at the load. Overload and short
circuit performance are not adversely affected during parallel
operation.
Page 1 of 11
Rev D - 20070703
Crane Aerospace & Electronics Power Solutions
MFLHP Single and Dual DC/DC Converters
28 VOLT INPUT – 100 WATT
OPERATING CONDITIONS AND CHARACTERISTICS
SYNC IN AND INHIBIT (INH1, INH2)
Input Voltage Range
• 19 to 40 VDC continuous
• 80 V for 50 msec transient
Output Power
• 80 to 100 watts depending on model
Lead Soldering Temperature (10 sec per pin)
• 300°C
Storage Temperature Range (Case)
• -65°C to +150°C
Power Dissipation (Pd) Max
• 20 watts
Case Operating Temperature (Tc)
• -55 to +100°C full power
• -55 to +135°C absolute
Derating Output Power/Current
• Linearly from 100% at 100°C to 0% at 135°C
Output Voltage Temperature Coefficient
• 100 ppm/°C typical
Input to Output Capacitance
• 150 pF typical
Current Limit
• 115% of full load typical
Isolation
• 100 megohm minimum at 500 VDC
Audio Rejection
• 50 dB typical
Conversion Frequency
• Free run mode 600 kHz typical
550 kHz min, 650 kHz. max
• External sync range 525 to 675 kHz
Inhibit Pin Voltage (unit enabled)
• INH1 = 9 to12 V, INH2 = 6 to 9 V
Sync In (525 to 675 kHz)
• Duty cycle 40% min, 60% max
• Logic low 0.8 V max
• Logic high 4.5 V min
• Referenced to input common
Sync Out - Referenced to input common
Inhibit (INH1, INH2) TTL Open Collector
• Logic low (output disabled)
Current –10 to –5 mA
INH1 referenced to input common
Logic low 0.8 V max
INH2 referenced to output common
Logic low 0.5 V max
• Logic high (output enabled)
Open collector
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.
Weight (maximum)
100 grams
Screening
Standard or ES. See “100°C Non-QML Products—MIL-PRF-38534 Environmental Screening” for more information.
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Page 2 of 11
Rev D - 20070703
Crane Aerospace & Electronics Power Solutions
MFLHP Single and Dual DC/DC Converters
28 VOLT INPUT – 100 WATT
PINS NOT IN USE
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
(MSTR/INH2)
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
(MSTR/INH2)
TR1
Master
Slave
Sync in
Inhibit (INH1)
Inhibit (INH2)
Sync Out
Sense Lines
Angled corner indicates pin one.
12
1
11
2
3
4
TOP VIEW
MFLHP
(Pin side, marked side)
See case U for dimensions.
FIGURE 1: PIN OUT
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9
8
5
6
10
Page 3 of 11
Rev D - 20070703
7
Leave unconnected
Leave unconnected
Leave unconnected
Connect to input common
Leave unconnected
Leave unconnected
Leave unconnected
Must be connected to
appropriate outputs
Crane Aerospace & Electronics Power Solutions
MFLHP Single and Dual DC/DC Converters
28 VOLT INPUT – 100 WATT
SINGLE OUTPUT MODELS CONNECTION DIAGRAMS - SENSE AND PARALLEL
28V
+
–
Inhibit
1
Positive Input
2
Input Common
3
TR1
4
INH1
5
6
Sync In
MSTR/INH2 12
Slave 11
Pos. Sense 10
9
Sense Return
Sync Out
Output Common
Sync In
Positive Output
–
8
7
+
RL
REMOTE SENSE CONNECTION
28V
+
–
1
Positive Input
2
Input Common
3
4
Inhibit
5
6
Sync In
MSTR/INH2 12
11
Slave
10
Pos. Sense
9
Sense Return
8
Output Common
7
Positive Output
TR1
INH1
Sync Out
Sync In
RA
–
+
RL
OUTPUT VOLTAGE ADJUST CONNECTION
RA (OHMS)
12–V 15–V
25
20
VOUT INCREASE
(VOLT)
0.1
5–V
70
0.2
140
50
40
0.3
210
75
60
0.4
280
100
80
0.5
350
125
100
FIGURE 2: SENSE CONNECTIONS AND TRIM TABLE – SINGLE OUTPUT MODELS
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
–
8
7
+
RL
CONNECT ONLY WHEN 2 SLAVES ARE USED
1
Positive Input
2
Input Common
3
TR1
4
INH1
5
Sync Out
6
Sync In
1
Positive Input
2
Input Common
3
TR1
4
INH1
5
Sync Out
6
SLAVE 1
MSTR/INH2 12
Slave 11
Pos. Sense 10
Sense Return 9
Output Common 8
Positive Output
7
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 – SINGLE OUTPUT MODELS
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Page 4 of 11
Rev D - 20070703
Crane Aerospace & Electronics Power Solutions
MFLHP Single and Dual DC/DC Converters
28 VOLT INPUT – 100 WATT
MODEL NUMBERING KEY
MFLHP 28 05 S / ES
Base Model
Input Voltage
Output Voltage
Number of Outputs
(S = single, D = dual)
Screening
(Standard screening has no designator
in this position.)
MODEL SELECTION
MFLHP28
Base model
/
Vout value
number of outputs
screening
Choose one from each of the following rows:
Vout value
Number of outputs
Screening
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for singles and duals: 5, 12, 15
S (single) or D (dual)
standard screening, leave blank
Page 5 of 11
Rev D - 20070703
/ES (ES screening)
Crane Aerospace & Electronics Power Solutions
MFLHP Single and Dual DC/DC Converters
28 VOLT INPUT – 100 WATT
Electrical Characteristics: –55°C to +100°C Tc, 28 VDC Vin, 100% load, free run, unless otherwise specified.
SINGLE OUTPUT MODELS
MFLHP2805S
MFLHP2812S
MAX MIN
CONDITIONS
MIN
TYP
MAX
MIN
OUTPUT VOLTAGE
TC = 25°C
4.95
5.00
5.05
11.88 12.00 12.12 14.85 15.00 15.15
OUTPUT CURRENT
VIN = 19 TO 40 VDC
0
—
16
0
—
7.5 0
—
6.67
A
OUTPUT POWER
VIN = 19 TO 40 VDC
0
—
80
0
—
90 0
—
100
W
OUTPUT RIPPLE
10 KHZ - 2 MHZ
TC = 25°C
TC = -55°C TO +100°C
—
—
15
30
35
75
—
—
30
45
30
45
85
150
mV p-p
LINE REGULATION
VIN = 19 TO 40 VDC
—
0
20
—
0
20 —
0
20
mV
LOAD REGULATION
NO LOAD TO FULL
—
0
20
—
0
20 —
0
20
mV
INPUT VOLTAGE
NO LOAD TO FULL
CONTINUOUS
19
28
40
19
28
40
19
28
40
VDC
TRANSIENT2 50 msec.1
—
—
80
—
—
80
—
—
80
V
NO LOAD
—
70
120
—
50
120
—
50
120
INHIBITED–INH1
—
9
14
—
9
14
—
9
14
75
125
—
—
TYP
MAX
UNITS
PARAMETER
INPUT CURRENT
TYP
MFLHP2815S
VDC
mA
INHIBITED–INH2
—
35
70
—
35
70
—
35
70
INPUT RIPPLE
CURRENT
10 KHZ - 10 MHZ
—
15
50
—
15
50 —
15
50
EFFICIENCY
TC = 25°C
78
80
—
83
86
— 84
87
—
%
LOAD FAULT
TC = 25°C
POWER DISSIPATION
SHORT CIRCUIT
—
15
20
—
15
20
15
20
W
RECOVERY1
—
1.5
50% - 100% - 50%
TRANSIENT
—
350
450
—
450
700
—
RECOVERY3
—
1.5
3.0
—
1.5
3.0
19 - 40 -19 VDC
TRANSIENT1, 4
—
250
400
—
250
RECOVERY1, 3
—
200
300
—
200
DELAY
—
3.5
6
—
3.5
OVERSHOOT1
—
0
25
—
0
STEP LOAD
RESPONSE
STEP LINE
RESPONSE
START-UP
Notes:
1. Guaranteed by design, not tested.
2. Unit will shut down above approximately 45V but will be undamaged
and will restart when voltage drops into normal range.
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4 —
1.5
—
4 —
4
m sec
450
700
mV pk
—
1.5
3.0
m sec
400
—
250
400
mV pk
300
—
200
300
μs
6 —
50
—
1.5
mA p-p
3.5
0
6
m sec
50
mV pk
3. Recovery time is measured from application of the transient to point at
which Vout is within 1% of final value.
4. Transition time ≥ 10 μs.
Page 6 of 11
Rev D - 20070703
Crane Aerospace & Electronics Power Solutions
MFLHP Single and Dual DC/DC Converters
28 VOLT INPUT – 100 WATT
Electrical Characteristics: –50°C to +100°C Tc, 28 VDC Vin, 100% load, free run, unless otherwise specified.
DUAL OUTPUT MODELS8
PARAMETER
OUTPUT VOLTAGE
OUTPUT CURRENT2
VIN = 19 TO 40 VDC
MFLHP2805D
CONDITIONS
TC = 25°C
MFLHP2812D
TYP
MFLHP2815D
MIN
TYP
MAX
MIN
MAX
MIN
TYP
MAX
+ VOUT
4.95
5.00
5.05
11.88 12.00 12.12
14.85 15.00 15.15
- VOUT
4.92
5.00
5.08
11.82 12.00 12.18
14.77 15.00 15.23
EACH OUTPUT
0
—
11.2
0
—
5.3 0
—
4.67
TOTAL OUTPUT
0
—
16.0 0
—
7.5 0
—
6.67
EACH OUTPUT
0
—
56
0
—
63
0
TOTAL OUTPUT
0
—
80
0
—
90
0
—
100
OUTPUT RIPPLE
± VOUT
10 KHZ - 2 MHZ
—
25
125
—
50
150
—
50
200
LINE REGULATION
VIN = 19 TO 40 VDC
+ VOUT
—
0
50
—
0
50
—
0
50
- VOUT
—
25
100
—
25
100
—
25
100
LOAD REGULATION
NO LOAD TO FULL
+ VOUT
—
0
50
—
10
100
—
10
100
- VOUT
—
25
100
—
50
200
—
50
200
CROSS REGULATION
TC = 25°C
SEE NOTE 3
SEE NOTE 4
—
—
6
7
8
8
—
—
2
2
4
4
—
—
2
2
4
4
CONTINUOUS
OUTPUT POWER2
VIN = 19 TO 40 VDC
INPUT VOLTAGE
NO LOAD TO FULL
INPUT CURRENT
TC = 25°C
—
UNITS
VDC
A
70
W
mV p-p
mV
mV
%
19
28
40
19
28
40
19
28
40
VDC
TRANSIENT 50 msec.1, 5
0
—
80
0
—
80
0
—
80
V
NO LOAD
—
50
120
—
50
100
—
50
100
INHIBITED–INH1
—
9
14
—
9
14
—
9
14
mA
INHIBITED–INH2
—
35
70
—
35
70
—
35
70
INPUT RIPPLE
CURRENT
10 KHZ - 10 MHZ
—
15
50
—
15
50
—
15
50
mA p-p
EFFICIENCY
TC = 25°C
BALANCED LOAD
78
80
—
83
86
—
84
87
—
%
LOAD FAULT
TC = 25°C
POWER DISSIPATION
SHORT CIRCUIT
—
15
20
—
15
20
—
15
20
W
RECOVERY1
—
1.5
4.0
—
1.5
4.0
—
1.5
4.0
m sec
STEP LOAD
RESPONSE
± VOUT
50% - 100% - 50%
TRANSIENT
—
350
450
—
450
700
—
450
700
mV pk
RECOVERY6
—
1.5
3.0
—
1.5
3.0
—
1.5
3.0
m sec
STEP LINE
RESPONSE
± VOUT
19 - 40 -19 VDC
TRANSIENT1, 7
—
250
400
—
250
400
—
250
400
mV pk
RECOVERY1, 6
—
200
300
—
200
300
—
200
300
START-UP8
DELAY
—
3.5
6
—
3.5
OVERSHOOT1
—
0
25
—
0
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 30%/70% or 70%/30%
loads.
4. Effect on negative Vout from 50%/50% loads to 10% then 50% load
on negative Vout.
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6 —
50
—
3.5
0
μs
6
m sec
50
mV pk
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. Parallel/current share operation is not characterized for dual output
models.
Page 7 of 11
Rev D - 20070703
Crane Aerospace & Electronics Power Solutions
MFLHP Single and Dual DC/DC Converters
28 VOLT INPUT – 100 WATT
Typical Performance Curves: 25°C Tc, 28 VDC Vin, 100% load, free run, unless otherwise specified.
90
90
19V
90
19V
28V
75
40V
70
65
28V
80
75
Efficiency (%)
80
40V
70
30
50
70
Output (Watts)
60
10
90
MFLHP2805S & MFLHP2805D
Efficiency
28V
80
75
70
40V
65
65
60
10
19V
85
85
Efficiency (%)
Efficiency (%)
85
30
50
70
60
10
90
30
50
70
90 100
Output Power (Watts)
Output Power (Watts)
MFLHP2812S & MFLHP2812D
Efficiency
MFLHP2815S & MFLHP2815D
Efficiency
FIGURE 4
FIGURE 5
FIGURE 6
0.
100mV/div.
100% to 50%
Vout
100mV/div.
40.
60.
20V/div.
80.
100.
0.1
Frequency (kHz)
50 μs/div
19 to 40 V
MFLHP Series Audio Rejection
MFLHP2805S Step Line Response
1
10
100
20V/div.
Vout
50% to 100%
100% to 50%
–Vout
1ms/div
No Load
50 μs/div
19 to 40 V
MFLHP2805S Turn On Response
MFLHP2815D Step Line Response
FIGURE 10
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FIGURE 9
Vin
+Vout
100mV/div.
20V/div.
Vin
1ms/div
MFLHP2805S Step Load Response
FIGURE 8
FIGURE 7
1V/div.
50% to 100%
Vin
200mV/div.
Attenuation (dB)
20.
FIGURE 11
Page 8 of 11
Rev D - 20070703
1ms/div
MFLHP2815D Step Load Response
FIGURE 12
Crane Aerospace & Electronics Power Solutions
MFLHP Single and Dual DC/DC Converters
28 VOLT INPUT – 100 WATT
Typical Performance Curves: 25°C Tc, 28 VDC Vin, 100% load, free run, unless otherwise specified.
–Vout
1ms/div
No Load
MFLHP2815D Turn On Response
19
6
4
2
MFLHP2812D
0
–2
MFLHP2815D
–4
–6
–8
30
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18
MFLHP2815S
& 15D
17
MFLHP2812S & 12D
40
50
60
70
Output Load (%)
+Pout 70 to 30 %, –Pout 30 to 70%
Cross Regulation
FIGURE 13
MFLHP2805S & 5D
MFLHP2805D
Input Voltage (Volts)
+Vout
–Vout Voltage Change (%)
VIN
5V/div.
20V/div.
8
FIGURE 14
Page 9 of 11
Rev D - 20070703
16
30
40
50
60
70
80
Output Power (Watts)
Low Line Dropout
FIGURE 15
90 100
Crane Aerospace & Electronics Power Solutions
MFLHP Single and Dual DC/DC Converter Cases
28 VOLT INPUT – 100 WATT
TOP VIEW CASE U
Flanged case, short-leaded
*Case U 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
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/Nickel/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 16: CASE U
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Page 10 of 11
Rev D - 20070703
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
MFLHP Single and Dual DC/DC Converters
28 VOLT INPUT – 100 WATT
100°C NON-QML PRODUCTS, MIL-PRF-38534
ENVIRONMENTAL SCREENING
TEST PERFORMED
100°C STANDARD
NON-QML1
NON-QML1
100°C /ES
Pre-cap Inspection
Method 2017, 2032
yes
yes
Temperature Cycle (10 times)
Method 1010, Cond. B, -55°C to 125°C, ambient
no
yes
Constant Acceleration
Method 2001, 500 g
no
yes
Burn-in
96 hours, typical case temperature 100°C case2
no
yes
Final Electrical Test MIL-PRF-38534, Group A
Subgroups 1 and 4: +25°C case
yes
yes
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
Final visual inspection
Method 2009
yes
yes
Test methods are referenced to MIL-STD-883 as determined by MIL-PRF-38534.
Notes:
1. Non-QML products do not meet all of the requirements of MIL-PRF-38534
2. Burn-in is still air with an ambient temperature designed to bring the case temperature to 100°C
MFLHP Single and Dual, Rev D - 20070703. 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. MFLHP Series is a trademark of Interpoint. Copyright © 1999 - 2007 Interpoint Corporation. All rights
reserved. www.craneae.com
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