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Crane Aerospace & Electronics Power Solutions
Maximum Flexible Power (MFP) Single Output Point of Load
MFP0507S, 3 to 6 volt input, 7 Amp, DC-DC Converter
Maximum Flexible Power (MFP) in a Single 7 Amp point of load.
A Use-Anywhere Power solution for digital and non-digital systems.
Features
• Radiation tolerant space dc-dc converter
-- Single event effects (SEE) LET performance to
85 MeV cm2/mg
-- Total ionizing dose (TID) guaranteed per MIL-STD-883
method 1019, radiation hardness assurance (RHA)
P = 30 krad(Si), L = 50 krad(Si), R = 100 krad(Si)
-- 50 - 300 rad(Si)/sec dose rate (Condition A)
-- 10 mrad(Si)/sec dose rate (Condition D)
• No external components required
• Up to 92% typical efficiency, flat down to 30% load
• Qualified up to MIL-PRF-38534 Class K
• Input voltage range 3.0 to 6.0 volts dc
• Input transient survivability to 15 volts for up to 1 sec.
• Inhibit and sync functions
• Current monitoring
Description
• Current sharing pin for parallel operation
The MFP Series™ dc-dc converters do not require any
external components to achieve all specified performance
levels. They are a high-reliability, high-efficiency point of load
converter for use with a 3.3 volt input bus or a 5.0 volt input
bus with an undervoltage shutdown below 3.0 volts and an
overvoltage shutdown above 6.0 volts. The MFP0507S model
has the flexibility to be set for any output voltage from 0.64
to 3.5 volts. The converter can withstand up to a 15 volts
transient for up to 1 second.
• Four pin-selectable, preset voltages
-- 0.8, 1.6, 2.5 and 3.3
• Output voltage continuously adjustable
-- from 0.8 to 3.5 volts with resistors
• Indefinite output short circuit protection
• Adjustable start-up sequencing
• Remote sense and voltage margining
• Internal solid state power switch provides many benefits including inrush current limiting
History of proven performance
Crane Aerospace & Electronics, Power Solutions was issued
its first standard microcircuit drawing (SMD) in 1992 for an
Interpoint® Class H hybrid. Our first Class K hybrid SMD was
issued in 1997 and we were one of the first companies to certify
manufacturing to Class K. Our Redmond site has a Defense
Logistics Agency (DLA) approved Radiation Hardness Assurance
(RHA) plan. Our products are on DLA SMDs with RHA P, L or R
for 30, 50 and 100 krad(Si), respectively.
The non-isolated, feature-rich MFP uses a Buck converter
design with synchronous rectification. The design allows the
unit to operate synchronously to no output load, ensuring
high efficiency at the lightest loads without switching off the
synchronous devices. Important features include a solid state
switch, inrush current limiting, synchronization with an external
system clock and the ability to current share allowing multiple
devices to supply a common load.
The MFP includes an internal house keeping supply that is
active at inputs as low as 2 volts and provides a boosted and
regulated voltage supply for internal use. This internal supply
is one of the reasons that this product can provide full power
at very high efficiency at input voltages as low as 3 volts. No
external power source or external bias is required.
The MFP converters are designed for the large, fast transient
load currents typical to digital loads. See Figure 4 on page
11. The MFP Series is intended to be powered by a fully
regulated power source.
Crane Aerospace & Electronics
Power Solutions – Interpoint Products
10301 Willows Road NE, Redmond, WA 98052
+1 425-882-3100 • [email protected]
www.craneae.com/interpoint
Page 1 of 20
MFP0507S Rev AG - 2016.02.23
Crane Aerospace & Electronics Power Solutions
Maximum Flexible Power (MFP) Single Output Point of Load
MFP0507S, 3 to 6 volt input, 7 Amp, DC-DC Converter
Table of Contents
Electrical Characteristics Tables
Table 1: Absolute Maximum Ratings . . . . . . . . . . . .
3
Table 3: Output Specifications . . . . . . . . . . . . . . .
4
Table 2: Input Specifications . . . . . . . . . . . . . . . .
Pin Out
Table 4: MFP0507S Pin Out . . . . . . . . . . . . . . . .
3
6
Model Numbering Information and SMD Number
Figure 1: Model Numbering Key . . . . . . . . . . . . . . . 7
Table 5: SMD Number . . . . . . . . . . . . . . . . . . . . 7
Table 6: Model Number Options . . . . . . . . . . . . . . . 7
Mechanical Information
Figure 2: MFP0507S Case Dimensions . . . . . . . . . . . 8
Thermal and Mounting Considerations
Thermal Considerations . . . . . . . . . . . . . . . . . . . 9
Figure 3: Infrared Image MFP at Full Load . . . . . . . . . 9
Mounting Considerations . . . . . . . . . . . . . . . . . . 10
Table 7: Chomeric Material Specifications . . . . . . . . 10
Pin Functions and Applications
Figure 4: Typical Connection Diagram . . . . . . . . . . 11
ENABLE . . . . . . . . . . . . . . . . . . . . . . . . .
12
SYNC . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Figure 5: ENABLE and SYNC Equivalent Circuit . . . 12
Table 8: Enable Capacitance Values . . . . . . . . .
12
+VIN and VIN Common . . . . . . . . . . . . . . . . . . 13
Figure 6: Input voltage vs Maximum Output Voltage . 13
SENSE . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Figure 7: SENSE Pin Voltage Margining . . . . . . . . 14
SHARE . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Figure 8: Typical Share Connection . . . . . . . . .
TRIM A and TRIM B . . . . . . . . . . . . . . . . . . .
15
16
Table 9: User Configurable Output Voltages . . . . . 16
+VOUT and VOUT Common . . . . . . . . . . . . . . . .
Figure 9: Maximum Rated Output Current . . . . . .
16
16
Typical Performance Plots
Figure 10: Typical Efficiencies . . . . . . . . . . . . . . . 17
Figure 11: Input Ripple, 3 VIN . . . . . . . . . . . . . . . 17
Figure 12: Input Ripple, 5 VIN . . . . . . . . . . . . . . . 17
Figure 13: Output Ripple,1.2 VOUT . . . . . . . . . . . . 17
Figure 14: Output Ripple, 3.3 VOUT . . . . . . . . . . . . 17
Figure 15: Load Transient Response, 1.2 VOUT . . . . . 17
Figure 16: Load Transient Response, 3.3 VOUT . . . . . 17
Figure 17: SHARE as Monitor for Output Current . . . . . 18
Figure 18: Operating Frequency
vs Temperature and VIN . . . . . . . . . . . . . . . . 18
Screening Tables
Table 10: Element Evaluation . . . . . . . . . . . . . . . 19
Table 11: Environmental Screening and RHA Levels . . . 20
www.craneae.com/interpoint
Page 2 of 20
MFP0507S Rev AG - 2016.02.23
Crane Aerospace & Electronics Power Solutions
Maximum Flexible Power (MFP) Single Output Point of Load
MFP0507S, 3 to 6 volt input, 7 Amp, DC-DC Converter
Electrical Characteristics:
-55 to +125°C TC, 5 VIN (VIN NOM), 3.3 VOUT, nominal frequency, unless otherwise specified.
Table 1: Absolute Maximum Ratings
Parameter
Condition
FIGURE
Operating Temperature 883, HP, HL, HR, KP, KL and KR
All
—
Storage Temperature
All
—
Derating Output Power/Current
Symbol
Min
Typ
Max
Units
TC
Linearly
Maximum Weight – MFP0507S
—
+125
°C
-65
—
+150
°C
—
From 100% at 125°C to 0% at 135°C
—
Figure 2
—
Method
3015
—
—
10 seconds
max
—
—
1
ESD RATING
MIL-PRF-38534, 3.9.5.8.2, MIL-STD-883
Lead Soldering Temperature 1
-55
TSTG
—
26
Class 1B 500 - 999 2
—
—
300
grams
V
°C
Table 1 Notes
1. 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.
2. Passed 500 volts.
Table 2: Input Specifications
Parameter
Input Voltage Range
State
Condition
Continuous
See Note 1
Figure 6
VIN
Figure 6
Operating
VOUT = V , V , V
1
2
3
Figure 6
See Note 2
VOUT = V , V , V , V
1
2
3
4
Figure 6
Figure 6
VIN 3.3 V, VOUT 0.8 V
VIN 5.0 V, VOUT 3.3 V
No Load
Disabled
Enable/Disable
Input
Symbol
VOUT = V , V
1
2
Transient 3
Input Current
Figure
Open Circuit Voltage
Threshold
Unit Enabled
Threshold
Unit Disabled
—
Amplitude
Duty Cycle
4
Frequency Source
Impedance
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V
0
5.0
6.0
3.0
3.3 or 5.0
6.0
3.3
3.3 or 5.0
6.0
4.5
5.0
6.0
—
—
15
—
210
300
V
V
135
180
145
—
50
90
1.6
2.0
2.6
2.3
—
—
—
—
1.4
IPIN 1
—
—
2
Figure 5
—
270
—
600
—
—
3.0
5.0
6.0
V
—
—
40
50
60
%
—
—
—
—
50
Ohms
Figure 5
IOUT 5 A
Units
105
Pin 1 Open
VIN 3.0 to 6.0 V
Standard
Sync Range
Max
—
IIN
—
Figure 5
ENABLE Pin Current
Unit Disabled
External
Synchronization
Typ
—
—
VIN 3.0 to 6.0 V
VIN TRAN
—
VIN 3.3 V
VIN 5.0 V
VIN
Min
Page 3 of 20
MFP0507S Rev AG - 2016.02.23
VPIN 1
VPIN 1
mA
V
mA
kHz
Crane Aerospace & Electronics Power Solutions
Maximum Flexible Power (MFP) Single Output Point of Load
MFP0507S, 3 to 6 volt input, 7 Amp, DC-DC Converter
Electrical Characteristics:
-55 to +125°C TC, 5 VIN (VIN NOM), 3.3 VOUT, nominal frequency, unless otherwise specified.
Table 2: Input Specifications (Continued)
Parameter
Switching Frequency
Power Dissipation
State
Condition
Figure
Symbol
Min
Typ
Max
Units
-55 to +125°C
IOUT 5 A
Figure 18
—
270
—
400
kHz
—
—
—
—
0.9
—
—
—
2.8
4.25
No Load
Fault Power, Output Short
W
Input Ripple Current
V1 (0.8 V)
VIN 3.3, IOUT 5 A
—
—
200
290
20 Hz – 20 MHz
V4 (3.3 V)
VIN 5.0, IOUT 5 A
—
—
200
310
IRMS
—
—
—
60
—
mARMS
Max
Units
—
mA p-p
Table 2 – Notes
1. When powering form 0 volts to the minimum specified input voltage, it is recommended to use a voltage ramp time of 1 millisecond or less.
The maximum voltage ramp time does not apply when releasing the ENABLE pin while power is applied.
2. 50 microsecond minimum transition time. Transient duration less than 1 second.
3. VOUT: V1= 0.8 V, V2 =1.6 V, V3 = 2.5 V, V4 = 3.3 V
4. TRISE/TFALL must be less than 50 ns.
Table 3: Output Specifications
Parameter
Operating Voltage
Accuracy 1
State
Condition
V1 0.8, 25°C
Figure 4
V2 1.6, 25°C
V3 2.5, 25°C
Figure 4
2.5 A Load
VOUT V1, V2, V3, V4
V4 3.3, -55 to +125°C
Figure 4
V4
—
VR LOAD
25°C
50% Load to Full
Rated Load
25°C
V1 VIN 3-6 V, IOUT 7 A
VOUT V1, V4
-55 to +125°C
V4 VIN 4.5-6 V, IOUT 5 A
Output Ripple
and Noise
-55 to +125°C
VIN 3.3 V, VOUT 0.8 V,
IOUT 5 A
Figure 13
-55 to +125°C
VIN 5.0 V,
VOUT 3.3 V, IOUT 5 A
Figure 14
20 Hz to 20 MHz
Output Current 1
V1 0.8, -55 to +125°C
V2 1.6, -55 to +125°C
V3 2.5, -55 to +125°C
V4 3.3, -55 to +125°C
Output Power 1
V1 0.8, -55 to +125°C
V2 1.6, -55 to +125°C
V3 2.5, -55 to +125°C
V4 3.3, -55 to +125°C
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V2
Figure 4
-55 to +125°C
Line Regulation 1
V1
V3 2.5, -55 to +125°C
V4 3.3, 25°C
Load Regulation 1
Symbol
Min
Typ
0.789
V1 0.8, -55 to +125°C
V2 1.6, -55 to +125°C
Figure
VIN 3.0 to 6.0 V
VIN 3.0 to 6.0 V
—
Figure 9
V3
VR LINE
VOUT-RIP
IOUT
VIN 4.5 to 6.0 V
VIN 3.0 to 6.0 V
VIN 3.0 to 6.0 V
Figure 9
VIN 4.5 to 6.0 V
Page 4 of 20
MFP0507S Rev AG - 2016.02.23
POUT
0.772
0.815
0.800
1.578
1.538
1.600
2.447
2.381
2.500
1.644
2.546
3.347
3.300
—
—
V
V
2.531
3.236
3.184
0.826
1.632
3.364
V
V
20
—
—
20
20
—
—
20
—
25
60
—
40
80
0
—
7.0
0
—
6.4
0
—
5.0
0
—
5.0
0
—
5.6
0
—
10.2
0
—
12.5
0
—
16.5
mV
mV
mV p-p
A
W
Crane Aerospace & Electronics Power Solutions
Maximum Flexible Power (MFP) Single Output Point of Load
MFP0507S, 3 to 6 volt input, 7 Amp, DC-DC Converter
Electrical Characteristics:
-55 to +125°C TC, 5 VIN (VIN NOM), 3.3 VOUT, nominal frequency, unless otherwise specified.
Table 3: Output Specifications (Continued)
Parameter
External Load
Capacitance 2
Efficiency 1
State
Condition
Figure
Symbol
Min
Typ
Max
Units
—
—
—
—
—
—
5000
µF
Figure 10
EFF1
70.0
73
—
67.4
—
—
Figure 10
EFF2
81.8
84
—
80.0
—
—
Figure 10
EFF3
87.3
89
—
85.8
—
—
Figure 10
EFF4
90.1
92
—
88.8
—
—
IOUT No Load to Full
—
—
—
—
50
—
—
—
50
IOUT No Load to Full
—
—
—
3.2
5
—
—
3.2
5
—
—
350
400
—
—
140
200
—
—
210
244
—
—
150
220
V1 0.8, 25°C
V1 0.8, -55 to +125°C
V2 1.6, 25°C
V2 1.6, -55 to +125°C
V3 2.5, 25°C
IOUT 5 A
V3 2.5, -55 to +125°C
V4 3.3, 25°C
V4 3.3, -55 to +125°C
Turn On Peak
Release of Enable
Deviation, VOUT, V4
1, 3
Turn On Settling Time
to 2%, VOUT, V4
1, 3
Output Load
Transient Response
Load Transient Peak
Deviation
Output Voltage Trim 1
V1, V2, V3, V4
VIN Step Start
Release of Enable
VIN Step Start
VIN 3.3 V, VOUT 0.8 V
VIN 0 to 5.0 V
VIN 0 to 5.0 V
IO 2.5 to 5 A
VIN 5.0 V, VOUT 3.3 V
@ 1 A / µs
settle to 2%
VIN 3.3 V, VOUT 0.8 V
IO 2.5 to 5 A
VIN 5.0 V, VOUT 3.3 V
Figure 15
Figure 16
@ 1 A/µs
settle to 2%
%
%
mV pk
ms
µs
mV pk
See Table 8 on page 12
MFP0507S/H
MFP0507S/K
AIF @ 55°C
—
—
—
1680
—
—
—
—
6722
—
Table 3 – Notes
1. VOUT is defined by the subscript after the V: V1= 0.8 V, V2 =1.6 V, V3 = 2.5 V, V4 = 3.3 V
2. Guaranteed stable up to maximum capacitance.
3. Test condition at VOUT at 3.3 V based on worst case setpoint condition.
www.craneae.com/interpoint
%
See Table 9 on page 16
—
Sequence Time Delay
MTBF
Figure 15
Figure 16
%
Page 5 of 20
MFP0507S Rev AG - 2016.02.23
kHrs
Crane Aerospace & Electronics Power Solutions
Maximum Flexible Power (MFP) Single Output Point of Load
MFP0507S, 3 to 6 volt input, 7 Amp, DC-DC Converter
Pin Out
Pin Number
Designation
Function
If Pin is not Used
1
ENABLE
Enable, provides remote turn
on and off
Leave open
2
+V IN
Positive Input
Always used
3
V IN COM
Input Common
Always used
4
SYNC
Synchronization
Leave open
5
SENSE
Sense, voltage drop
compensation
Connect to + VOUT pin 10
6
SHARE
Current Share, parallel operation, or current monitor
Leave open
7
TRIM A
Preset Output Voltage and
Trim
See Figure 4 on page 11
and Table 9 on page 16
8
TRIM B
Preset Output Voltage and
Trim
See Figure 4 on page 11
and Table 9 on page 16
9
V OUT COM
Output Common (also
SENSE Return)
Always used
10
+V OUT
Positive Output
Always used
Table 4: MFP0507S Pin Out
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Page 6 of 20
MFP0507S Rev AG - 2016.02.23
Crane Aerospace & Electronics Power Solutions
Maximum Flexible Power (MFP) Single Output Point of Load
MFP0507S, 3 to 6 volt input, 7 Amp, DC-DC Converter
model numbering key
Maximum Flexible Power
Nominal Input Voltage
MFP
SMD Number
05 07 S
Standard Microcircuit
Drawing (SMD)
/ KR
5962R1120901KXC
MFP Similar Part
MFP0507S/KR
The SMD number shown is for Class K screening and
Radiation Hardness Assurance (RHA) level R. See the
SMD for the numbers for other screening and radiation
levels. For exact specifications for an SMD product, refer
to the SMD drawing. SMDs can be downloaded from:
http://www.landandmaritime.dla.mil/programs/smcr
Output Current
Number of Outputs
(S = single)
Screening and RHA
(883, HP, HL, HR, KP, KL or KR)
Table 5: SMD Number
Figure 1: Model Numbering Key
To
model Number Options
determine the model number enter one option from
each category in the form below.
Category
Base Model and
Input Voltage
Options
MFP0507S
Screening 1
RHA 2
883
Not available
O
O
H
P
K
L
R
Fill in for
Model #
__________
MFP0507S
/
_______
Notes
1. Screening: See Table 10 on page 19 and Table 11 on page 20 for more information.
2. RHA: A screening level of O is a space prototype and is only available with RHA O.
RHA options are only available with Class H or Class K screening. See Table 11 on page 20 for more information.
Table 6: Model Number Options
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Page 7 of 20
MFP0507S Rev AG - 2016.02.23
Crane Aerospace & Electronics Power Solutions
Maximum Flexible Power (MFP) Single Output Point of Load
MFP0507S, 3 to 6 volt input, 7 Amp, DC-DC Converter
mechanical Information
TOP VIEW CASE D3
MFP Series Single
0.972 (24.69)
0.822 (20.88)
0.672 (17.07)
0.522 (13.26)
0.372 (9.45)
0.222 ±0.010
(6.54 ±.025)
1
2
3
10
5
8
4
9
6
7
1.200 max
(30.48)
1.200 max
(30.48)
Seam seal 0.346 max. (8.79)
0.040 ±0.002 dia.
(1.02 ±.05)
0.240 ±0.010
(6.10 ±0.25)
10 x 0.190 (4.83)
Weight: 26 grams maximum
Case dimensions in inches (mm)
Tolerances, unless otherwise specified,
X.XXX (X.XX) = ±0.005 (0.13)
X.XX (X.X) = ±0.01 (0.30)
Pin and hole placement ±0.0035 (±0.089)
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
Cover - Kovar/Nickel
Pins - 3:1 Cu Cored alloy 52/Gold over Nickel, compression glass seal
Gold plating of 50 - 150 microinches included in pin diameter
Seal hole: 0.091 ±0.003 (2.31 ±0.08)
Case D3, Rev B, 2013.04.16
Please refer to the numerical dimensions for accuracy.
Figure 2: MFP0507S Case Dimensions
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Page 8 of 20
MFP0507S Rev AG - 2016.02.23
Crane Aerospace & Electronics Power Solutions
Maximum Flexible Power (MFP) Single Output Point of Load
MFP0507S, 3 to 6 volt input, 7 Amp, DC-DC Converter
Thermal and Mounting Considerations
Thermal Considerations
The MFP is designed to be mounted close to the pointof-use which, in many cases, may be on a printed circuit
board. The high efficiency of the MFP reduces the issues
normally associated with the converter’s internal dissipation.
The maximum internal dissipation occurs when the product
is configured as a 3.3 volt output at full load. This condition
will result in a dissipation of not more than 1.78 watts. This
dissipation is nearly uniformly distributed over the base area of
1.4 square inches. Full load power loss is largely independent of
output voltage, for instance at 0.8 volts and full load the internal
power loss maximum is again 1.78 watts.
In order to determine the cooling or heat sinking requirements in
the application, the maximum product power dissipation should
be calculated from the product efficiency and output power.
Graphs and tabled values in the specification table can be used
to find the efficiency given the input voltage, selected output
voltage and output load. The internal dissipation, difference
between output and input power, can be calculated from the
equation below.
where:
Many applications will not require special efforts at cooling,
however, this depends on ambient temperatures, adjacent
components, and other factors.
If product cooling is required for safe operation convention and/
or conduction can be used. Thermal considerations require that
the base of the MFP be maintained at a safe temperature of less
than the maximum rating. All components internal to the MFP
are bonded to the metal base of the package. The base is the
surface that is important if conduction cooling is used. It is a good
practice to bond the device to the PCB or mounting surface with
a thermally conductive pad. Such pads provide some degree of
conduction cooling to the mounting surface depending on the
amount of voiding at the interface. In the case of the side leaded
MFP package, this thermal pad will firmly locate the device to the
surface so that the lead connections only manage the electrical
requirements and not the mechanical requirements.
In Figure 3 below, the thermal rise internal to the MFP can
be seen to be only 6°C. This low thermal rise gives the end
user more flexibility in board design options to meet applicable
derating guidelines.
POUT = output power
ɛ = efficiency
PDISS = POUT (1 -
ε) / ε
F = thermal resistance of converter attachment to board
∆ T = PDISS x
F
TCASE = TBASE + ∆ T
Figure 3: Infrared Image MFP at Full Load
with 6 VIN, 3.3 VOUT
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Page 9 of 20
MFP0507S Rev AG - 2016.02.23
Crane Aerospace & Electronics Power Solutions
Maximum Flexible Power (MFP) Single Output Point of Load
MFP0507S, 3 to 6 volt input, 7 Amp, DC-DC Converter
Thermal and Mounting Considerations (continued)
Mounting Considerations
Application
Recommended size for the adhesive tapes is 1.18 x 1.18 inches.
Application of the tapes is a matter of peeling the release liners
and attaching to the MFP and circuit board respectively. See
Chomeric’s data sheets and application notes for details. The
T404 material does require higher application pressure. The
T1680 material is specifically made for low pressure attachment
of hybrids, ceramic and flat packages.
The recommended mounting material is Chomeric’s double-sided
adhesive materials for attachment of the MFP to a circuit board
or metal surface.
Because of the MFP’s efficiency the thermal characteristics of the
Chomeric materials are not required even though the Chomeric
material provides good thermal conductivity.
The following information refers to products attached using
Chomeric double-sided adhesive.
Removal
Refer to Chomeric’s application notes for Thermattach Tape.
Vibration Testing
The MFP was tested in Random vibration using both the T1680
and T404 to mount the units to an aluminum vibration fixture.
Testing was performed to the most severe level in MIL-STD-883
Method 2026; Condition 2, Letter K, overall GRMS 51.1, for 15
minutes per axis, 3 axes and passed. No mounting detachment
occurred.
Specifications
Refer to Table 7: Chomeric Material Specifications for thermal
conductivity, temperature range and out-gassing.
Table 7: Chomeric Material Specifications
Thermal
Conductivity
Temperature
Range
W/m-K
°C
% TVM
% CVCM
CHO-THERM 1671
(Note 2)
2.6
-60 to +200
0.76
0.07
Rougher surfaces
CHO-THERM T1680
(Note 1)
0.65
-60 to +200
1.27
0.23
Smooth surfaces
THERMATTACH T404
(Note 1)
0.4
-30 to +125
0.53
0.02
Smooth surfaces
Material
Table 7 – Notes
1. Chomeric’s Thermattach Tape T404 and Cho-Therm T1680
are two excellent choices for circuit board mounting. Both
have a Kapton insulating barrier with pressure sensitive
adhesive (PSA) on both sides.
www.craneae.com/interpoint
Outgassing Data
Mounting
Application
2. Chomerics Cho-Therm 1671 is a good choice for mounting on
rougher surfaces. This material has a fiberglass barrier with
PSA on one side. It can be obtained with PSA on both sides
if needed.
Page 10 of 20
MFP0507S Rev AG - 2016.02.23
Crane Aerospace & Electronics Power Solutions
Maximum Flexible Power (MFP) Single Output Point of Load
MFP0507S, 3 to 6 volt input, 7 Amp, DC-DC Converter
MFP Single
POL Converter
EN
CT1
+
+ V IN
–
V IN COM
VIN DC
3
SYNC IN
+
3.3 V _
Load
+
2.5 V _
Load
+
1.2 V _
Load
V OUT COM
SENSE
TRIM B
SHARE
TRIM A
1
MFP Single
POL Converter
EN
CT2
+V OUT
+ V IN
V IN COM
SYNC IN
V OUT COM
SENSE
TRIM B
SHARE
TRIM A
MFP Single
POL Converter
EN
CT3
+V OUT
+ V IN
V IN COM
SYNC IN
V OUT COM
SENSE
TRIM B
SHARE
TRIM A
MFP Single
POL Converter
EN
CT4
+V OUT
2
12.7 k
+ V IN
IOUT
Monitoring
V IN COM
SYNC IN
+V OUT
+
0.8 V _
Load
V OUT COM
SENSE
TRIM B
SHARE
TRIM A
5
4
External ENABLE
Figure 4: Typical Connection Diagram
ENABLE, TRIM, SENSE, and IOUT Monitoring
For more information:
1 2 TRIM section
3
Remote SENSE section
4
ENABLE section, sequencing. Table 8 on page 12 lists CT values.
5
SHARE section
www.craneae.com/interpoint
Design Recommendations
The MFP is designed to be used with a low impedance power
source. If the inductance to the MFP input is not negligible, it is
recommended that the inductance is kept to less than 1 uH per
MFP converter. For additional information please contact power
application support at [email protected]
Page 11 of 20
MFP0507S Rev AG - 2016.02.23
Crane Aerospace & Electronics Power Solutions
Maximum Flexible Power (MFP) Single Output Point of Load
MFP0507S, 3 to 6 volt input, 7 Amp, DC-DC Converter
ENABLE
The MFP provides an enable pin that will allow normal power
conversion to occur if left open or unconnected. The ENABLE pin
allows remote turn-on and turn-off control of the MFP. Connecting
this pin to ground will disable power conversion, resulting in no
output voltage and greatly reduced current consumption. The
MFP ENABLE function will work with an open collector device
connected to the pin or with a logic high voltage from a digital
device as long as the logic high voltage is greater than the
minimum voltage listed in the specification for enabled operation.
The enable pin is active high at > 2.3 volts or with a floating input.
Sequencing: The start-up of the MFP can be delayed with the
addition of an external capacitor connected to the ENABLE pin
as shown in Figure 5. This feature is useful in sequencing the
start-up of multiple point of load converters in a system requiring
a specific startup sequence for various low-voltage loads. The
startup delay is roughly equal to 1 millisecond per microfarad of
capacitance. More precise external capacitance values can be
found in Table 8 where it can be seen that there is a variation in
startup delay time as the input voltage varies. The listed delay
is from the beginning of application of power to the beginning
of internal power conversion. There will be an additional delay
as the power converter begins a normal start-up sequence and
ramps to final output voltage.
SYNC
The MFP includes a synchronization feature, a key capability
in low noise system design. The internal conversion oscillator
can be synchronized with a system clock or with a bus voltage
source. The MFP is designed to synchronize with a 300 kHz
system but can be synchronized with sources up to 600 kHz, a
frequency range used by many dc-dc converters. A synchronized
system prevents the generation of low frequency sub harmonics
in the audio range. The synchronization input amplitude can
range from 3 to 6 volts. Figure 17 on page 18 illustrates the
relationship between operating frequency, temperature and input
voltage.
The external synchronization timing cycle can be varied cycle
to cycle for systems employing spread-spectrum clocking or for
slave sharing clock interleaving. The dc level of the sync pin can
be used to detect the state of the input voltage protection switch.
UNDER VOLTAGE
/ OVER VOLTAGE
PROTECTION
ENABLE
2.2 k
22.1 k
+ V IN
+V OUT
DC-DC
220 µF
330 µF
Figure 5: ENABLE and SYNC
Equivalent Circuit
V OUT COM
V IN COM
Case
HOUSEKEEPING
SYNC IN
5.11 k
CONTROL
CLOCK
Table 8: Enable Capacitance Valuesfor Start-Up Delay
Enable Capacitance: Delay from Enable Release to Start of Output rise (25°C)
Units
CAPACITANCE (CT)
0.22
0.33
0.47
0.68
1.0
1.5
2.2
3.3
4.7
6.8
10
µF
VIN 3.3 V
0.8
1.1
1.6
2.2
3.1
4.6
6.7
10.0
14.1
20.2
29.7
ms
VIN 5.0 V
0.4
0.5
0.7
0.9
1.3
1.8
2.6
3.9
5.5
7.8
11.4
ms
www.craneae.com/interpoint
Page 12 of 20
MFP0507S Rev AG - 2016.02.23
Crane Aerospace & Electronics Power Solutions
Maximum Flexible Power (MFP) Single Output Point of Load
MFP0507S, 3 to 6 volt input, 7 Amp, DC-DC Converter
+VIN and VIN Common
No Single Point Failure
The solid state switch (SSS) can be used to provide one
additional level of reliability: “no single point failure” will result in a
connection from input voltages to output loads. The SSS can be
opened by grounding of the ENABLE Pin. The status of the SSS
can be determined by detecting the voltage on the SYNC pin. A
logic low on this pin indicates that the SSS is open.
Maximum Output Voltage Range
3.4
3.3
3.0
2.5
Normal
Operation
2.0
1.6
1.5
1.0
0.8
0.64
0.5
0
0
1.0
2.0
Figure 6: Input
www.craneae.com/interpoint
Page 13 of 20
MFP0507S Rev AG - 2016.02.23
3.3
3.0
4.25
4.0
5.0
6.0
Output Disabled
Input Under and Over Voltage Protection
The MFP includes a solid state switch on the input section. This
switch opens for fault conditions including input voltages below
the minimum and transient voltages above the maximum. The
safe operating range includes ground and extends to 7.0 volts
indefinitely and up to 15 volts as a time limited transient. The
switch will only close when certain internal conditions are met,
including the proper operation of the internal housekeeping
supply and a safe input voltage range.
Over Voltage Shutdown
Additional Input Block Features
Input Reflected Noise and Inrush Current Limit
Substantial input capacitance is included and the input solid state
switch previously described is designed to provide associated
inrush current limiting. The substantial input capacitance and
high SSS provide a “pi” filter configuration that results in very
low reflected ripple current. The very low input noise and inrush
limiter make the MFP unique among point of load converters.
Under Voltage Shutdown
The VIN Common pin is connected to VOUT Common and case
ground. The input and output should share the same ground
plane in the power system design.
No External Bias Required
An internal housekeeping supply that is active at inputs as low
as 2 volts provides a boosted and regulated voltage supply for
internal use. This internal supply is one of the reasons that this
product can provide full power at very high efficiency at input
voltages as low as 3 volts. No external power source or external
bias is required.
Output Voltage (V)
Input Voltage
The input voltage range for normal operating conditions is 3.0 to
6.0 volts (Figure 6). For input ripple current see Figure 11 and
Figure 12 on page 17.
10.5
15.0
Input vs
Voltage
(V) Output Voltage
voltage
Maximum
Crane Aerospace & Electronics Power Solutions
Maximum Flexible Power (MFP) Single Output Point of Load
MFP0507S, 3 to 6 volt input, 7 Amp, DC-DC Converter
SENSE
The MFP includes a positive remote sense. The SENSE pin is
intended to be used to maintain the desired preset voltage at the
point-of-use by connecting the remote sense to the +Vout supply
in close proximity to the load. Up to 0.27 volts of power line drop
can be accommodated. If the SENSE pin lead is not connected
to the output positive power pin, the output will rise a total of 0.27
volts.
If connections have no voltage drop, the formula for the resistor
is
RX =
[
1000
(0.2697)
(VOUT - 3.3)
-1
]
in ohms
The output voltage can be margined upward from the preset
value as much as 0.2 volts by the addition of a resistor between
the positive SENSE pin and the output power pin. The amount
of increase in the output voltage by margining will reduce the
available remote sense range by the same amount. The sum of
margined voltage and voltage sense drop must be less than 0.2
volts.
SENSE
Sense margining can be used to adjust VOUT from 3.3 to 3.5.
Connections must be made as close as possible to Common and
to RX. This method uses the SENSE pin’s voltage compensation
function to raise the output voltage. Therefore, there will not be
an option to compensate for voltage drop at the load.
TRIM A
TRIM B
+VOUT
+
Rx
VOUT
-
VOUT Common
Figure 7: SENSE Pin Voltage Margining
VOUT from 3.3 to 3.5 1, 2, 3
Figure 7 – Notes
1. For external connections see Figure 4 on page 11.
2. See Table 9 on page 16 for output voltages from 0.64 to 3.3.
3. Not tested.
www.craneae.com/interpoint
Page 14 of 20
MFP0507S Rev AG - 2016.02.23
Crane Aerospace & Electronics Power Solutions
Maximum Flexible Power (MFP) Single Output Point of Load
MFP0507S, 3 to 6 volt input, 7 Amp, DC-DC Converter
SHARE
The MFP includes a current share feature that allows multiple
units to operate as a single supply capable of providing a total
current that is the sum of the maximum from each of the units
that are operated in parallel. In connecting units in parallel, the
SHARE pin is connected between units and all but one unit, the
master, will have TRIM A and TRIM B pins tied to the positive
SENSE pin. The master will have the TRIM pins configured for
the desired output voltage while the other units in parallel will
match the current and voltage of the master unit.
Two connections are critical to sharing between two units. The
SHARE pins of the two (or more) units must be tied together
and the TRIM A and TRIM B outputs must be tied together
and shorted to +Vout and SENSE for each unit that is not the
Master. The master unit will be the one with the highest pre-set
output voltage. In the case of Figure 8, callout 3, the master is
configured with both TRIM pins open for a 0.8 V output.
The SHARE pin can be used as an output current monitor
because the voltage on this pin is proportional to unit current.
See Figure 4 on page 11, callout 5. Output currents
corresponding to SHARE pin voltages are shown in Figure 17 on
page 18. Connections for current monitoring are also shown in
Figure 4 on page 11.
1
EN
DC-DC Converter
MFP Single
POL Converter
+ V IN
MASTER
+V OUT
V IN COM
+ V IN
V IN COM
INHIBIT
SYNC IN
+V OUT
SENSE
TRIM B
SHARE
TRIM A
EN
MFP Single
POL Converter
V OUT COM
+ V IN
SYNC OUT
2
+V OUT
V OUT COM
SYNC IN
For more information:
1 ENABLE section
2 SYNC section
SENSE
TRIM B
SHARE
TRIM A
3
SHARE section (above)
www.craneae.com/interpoint
SLAVE
V IN COM
System
Clock
3
V OUT COM
SYNC IN
Figure 8: Typical Share Connection
with Optional Sync
Page 15 of 20
MFP0507S Rev AG - 2016.02.23
+ LOAD —
+
V IN DC
–
Crane Aerospace & Electronics Power Solutions
Maximum Flexible Power (MFP) Single Output Point of Load
MFP0507S, 3 to 6 volt input, 7 Amp, DC-DC Converter
Output Voltage Set and Adjustment
The MFP0507S, single output model has the flexibility to be
set for any voltage from 0.64 to 3.3 volts. The MFP includes
five precision set-points that can be accomplished with pin
connections alone and no trim resistor. An open circuit on both
TRIM pins results in a 0.80 volts output, grounding one or the
other or both pins results in precise output voltages of 1.6, 2.5 or
3.3 volts. One other preset voltage is possible using the SENSE
pin. Connecting both trim pins to the positive SENSE pin results
in 0.64 volts. Output values of 0.8 to 3.5 volts can be set with
the use of external trim resistors in series with the trim pins to
ground.
Any voltage intermediate to the pre-set voltages is available by
adding a trim resistor between Common and both TRIM pins.
Table 9 lists available pin-configurable and adjust/trim output
voltages. See Figure 9 for output current under specific
operating conditions.
Output Voltage using pin configurations
or Trim resistors
Desired Voltage
Pin Configurable
Fixed
SENSE
pin Vs
Both TRIM A and TRIM
B connected to SENSE
0.8
Both TRIM A and
TRIM B open
–
0.9
Fixed
V1
Adjust
–
57.6 k
1.0
Adjust
–
27.4 k
1.2
Adjust
–
12.7 k
1.5
Adjust
–
6.19 k
1.6
TRIM A open
TRIM B grounded
—
1.8
Fixed
V2
Adjust
—
3.57 k
2.0
Adjust
—
2.61 k
2.5
Fixed
V3
TRIM A grounded.
TRIM B open
—
Fixed
V4
Both TRIM A and TRIM
B grounded
See page Figure 11 and Figure 12 on page 17 for typical
output ripple plots.
7.0
6.0
5.0
Vin=3V-6V
4.0
Vin=3.3V-6V
Vin=4.5V-6V
Normal Operating Region
0
0.64
—
1.0
1.5
2.0
2.5
Output Voltage (V)
3.0
Figure 9: Maximum Rated Output Current
Table 9 – Notes
1. Formula for RT in Table 7 for VOUT below 3.3 and above 0.8 V:
—
Table 9: User Configurable Output Voltages1, 3
www.craneae.com/interpoint
Due to the Buck topology, the required output voltage of the
MFP must always be at least 0.8 V lower than the input. Precise
values of achievable output voltages and currents as a function
of VIN are shown in Figure 8 on page 15.
TRIM Resistor (RT) 1
from ground to
TRIM A and TRIM B
0.64 2
3.3
+VOUT and VOUT Common
Output Current (A)
TRIM A and TRIM B
6.031
RT =
- 2.4 in kOhms
VOUT - 0.804
2. The output voltage of 0.64 is available for use but performance is
not electrically specified.
3. See page Figure 7 on page 14.
Page 16 of 20
MFP0507S Rev AG - 2016.02.23
3.5
Crane Aerospace & Electronics Power Solutions
Maximum Flexible Power (MFP) Single Output Point of Load
MFP0507S, 3 to 6 volt input, 7 Amp, DC-DC Converter
Typical Performance Plots: 25°C case, 5 Vin, 100% load, free run, unless otherwise
These are examples for reference only and are not guaranteed specifications.
specified.
95
90
85
5 VIN 3.3 VOUT
5 VIN 2.5 VOUT
3.3 VIN 1.6VOUT
3.3 VIN 0.8 VOUT
Efficiency
80
75
70
Refer to Table 3 on
page 4 for maximum
output currents.
65
60
55
50
0
0.5
1
1.5
2
2.5
3
Output Current
3.5
4
4.5
5
1 µs/div
5 VIN, 3.3 VOUT, 5 A load
1 µs/div
3.3 VIN, 1.2 VOUT, 5 A load
Figure 14
www.craneae.com/interpoint
Figure 13
100 mV/div
100 mV/div
MFP0507S Output Ripple
MFP0507S Output Ripple
Figure 12
Figure 11
1 µs/div
5 VIN, 3.3 VOUT, 5 A load
1 µs/div
3.3 VIN, 1.2 VOUT, 5 A load
MFP0507S Input Ripple (IIN)
MFP0507S Input Ripple (IIN)
20 mV/div
20 mV/div
100 mA/div
100 mA/div
Figure 10: Typical Efficiencies
200 µs/div
3.3 VIN, 1.2 VOUT, 5 A load
MFP0507S Load Transient
Figure 15
Page 17 of 20
MFP0507S Rev AG - 2016.02.23
200 µs/div
5 VIN, 3.3 VOUT, 5 A load
MFP0507S Load Transient
Figure 16
Crane Aerospace & Electronics Power Solutions
Maximum Flexible Power (MFP) Single Output Point of Load
MFP0507S, 3 to 6 volt input, 7 Amp, DC-DC Converter
Typical Performance Plots: 25°C case, 5 Vin, 100% load, free run, unless otherwise
These are examples for reference only and are not guaranteed specifications.
SHARE Voltage as Current Monitor
4.0
0
0.5
=2.
1.0
1.5
V
Vout=3
.3
V
Vou
t
0
Vo
u
t=
1.0
t=
0.
1.6
8V
2.0
5V
Vin=5V
3.0
Vo
u
Output Current (A)
5.0
2.0
2.5
SHARE Voltage (V)
Figure 17 : SHARE as Monitor for Output Current
Note on SHARE: Because there is a predictable relationship between SHARE pin
voltage and load current, the SHARE pin can be monitored to indicate load current
when the share function is not being used. Due to initial tolerance related variations
in the exact SHARE voltage vs. load current relationship, it is recommended that
the user perform a calibration by measuring the SHARE pin voltage at two or more
load currents and calculating the V-SHARE vs. load slop and intercept. The graph
in Figure 17 is indicative of what should be expected when generating such a
relationship.
Frequency (kHz)
330
325
320
Vin=6V
315
310
Vin=3V
Vin=4V
Vin=5V
305
300
-55
25
Temperature (C)
125
Figure 18 : Typical Operating Frequency vs Temperature and
Vin
This graph illustrates the performance of proprietary Interpoint technology
www.craneae.com/interpoint
Page 18 of 20
MFP0507S Rev AG - 2016.02.23
specified.
Crane Aerospace & Electronics Power Solutions
Maximum Flexible Power (MFP) Single Output Point of Load
MFP0507S, 3 to 6 volt input, 7 Amp, DC-DC Converter
MIL-PRF-38534 Element Evaluation
Non-QML 1
QML
Prototype
Component-Level Test Performed
Element Electrical
/O
M/S
n
2
Class H
M/S
2
/883
P3
M/S
Class K
2
/H
P3
M/S
2
/K
P3
n
n
n
n
n
n
Visual
n
n
n
n
n
n
Internal Visual
n
n
n
Temperature Cycling
n
n
Constant Acceleration
n
n
Interim Electrical
n
Burn-in
n
Post Burn-in Electrical
n
Steady State Life
n
Voltage Conditioning Aging
n
Visual Inspection
n
Final Electrical
n
n
n
n
n
n
Wire Bond Evaluation
n
n
n
n
n
n
SEM
C-SAM: Input capacitors only 4
n
n
Notes
1. Non-QML products may not meet all of the requirements of MIL-PRF-38534.
2. M/S = Active components (Microcircuit and Semiconductor Die)
3. P = Passive components, Class H and K element evaluation. Not applicable to /ST element evaluation.
4. Additional test not required by H or K.
Definitions:
Element Evaluation: Component testing/screening per MIL-STD-883 as determined by MIL-PRF-38534
SEM: Scanning Electron Microscopy
C-SAM: C – Mode Scanning Acoustic Microscopy
Table 10: Element Evaluation
www.craneae.com/interpoint
Page 19 of 20
MFP0507S Rev AG - 2016.02.23
n
n
Crane Aerospace & Electronics Power Solutions
Maximum Flexible Power (MFP) Single Output Point of Load
MFP0507S, 3 to 6 volt input, 7 Amp, DC-DC Converter
Environmental Screening Space DC-DC Converters Prototype, Class
H and Class K, RHA 1 P, L and R
non-QML 2
Prototype
/OO 4
Test Performed
/883
/HP
/HL
/HR
/KP
n5
n5
n5
n5
n
n
n
n
n
n
n
n
n
n5
Non-destruct wire bond pull, Method 2023
Pre-cap Inspection, Method 2017, 2032
Class H
QML 3
Class K
/KL
/KR
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n5
n5
n5
n
n
n
n5
n5
n5
n5
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n5
n5
n5
n
n
n
Temperature Cycle (10 times) (Qual 100 times)
Method 1010, Cond. C, -65°C to +150°C, ambient
Constant Acceleration
Method 2001, 3000 g (Qual 5000 g)
PIND, Test Method 2020, Cond. A
Pre burn-in test, Group A, Subgroups 1 and 4
Burn-in Method 1015, +125°C case, typical
n
6
96 hours
n
160 hours
2 x 160 hours (includes mid-BI test)
Final Electrical Test, MIL-PRF-38534, Group A,
Subgroups 1 and 4: +25°C case
n
Subgroups 1 through 6, -55°C, +25°C, +125°C case
n
n
n
n
n
n
n
n
n
n
n
n
n
n
Hermeticity Test, Method 1014
Gross Leak, Cond. B2, Kr85
Gross Leak, Cond. C1, fluorocarbon
Fine Leak, Cond. B1, Kr85
Fine Leak, Cond. A2, helium
Radiography, Method 2012
Post Radiography Electrical Test, +25°C case
Final visual inspection, Method 2009
RHA P: 30 krad(Si) total dose
n
n
1, 7, 8
n
n
n
RHA L: 50 krad(Si) total dose 1, 7, 8
RHA R: 100 krad(Si) total dose
SEE, LET 85 MeV cm2/mg 1, 9
n
n
n
1, 7, 8
n
n
n
n
n
n
n
n
n
Test methods are referenced to MIL-STD-883 as determined by MIL-PRF-38534.
Notes
1. Our Redmond facility has a DLA approved RHA plan for Interpoint power
products. Our SMD products with RHA “P”, “L” or “R” code meet DLA
requirements.
2. Non-QML prototype products may not meet all of the requirements of
MIL-PRF-38534.
3. All processes are QML qualified and performed by certified operators.
4. “O” in the RHA designator position in Interpoint model numbers indicates DLA
RHA “-” defined as no RHA.
5. Not required by DLA but performed to assure product quality.
6. Burn-in temperature designed to bring the case temperature to +125°C minimum.
Burn-in is a powered test.
7. High dose rate test.
8. Low dose rate test. Tested up to 30 krad(si).
9. No destructive events or SEL.
Table 11: Environmental Screening and RHA Levels
MFP Series Single, MFP0507S Rev AG - 2016.02.23. This revision supersedes all previous releases. All technical information is believed to be
accurate, but no responsibility is assumed for errors or omissions. Crane Electronics, Inc. reserves the right to make changes in products or
specifications without notice. Interpoint is a registered trademark of Crane Co. MFP Series is a trademark of Crane Electronics, Inc. Copyright ©
2009-2016 Crane Electronics, Inc. All rights reserved. www.craneae.com/interpoint
Page 20 of 20