MQFL-28-1R5S-WHB [SYNQOR]
1-OUTPUT 60W DC-DC REG PWR SUPPLY MODULE, MODULE-12;
| 型号： | MQFL-28-1R5S-WHB |
| 厂家： | 
SYNQOR WORLDWIDE HEADQUARTERS |
| 描述： | 1-OUTPUT 60W DC-DC REG PWR SUPPLY MODULE, MODULE-12 输出元件 |
| 文件： | 总17页 (文件大小：8130K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
MQFL-28E-1R5S
Single Output
HigH Reliability DC-DC ConveRteR
16-70V
16-80V
1.5V
40A
85% @ 202% @ 40A
Continuous Input
Transient Input
Output
Output
Effic
Full PoweR oPeRation: -55ºC to +125
@
The MilQor series of high-reliability DC-DC converters
brings SynQor’s field proven high-efficiency synchronous
rectifier technology to the Military/Aerospace industry.
TM
SynQor’s innovative QorSeal packaging approach ensures
survivability in the most hostile environments. Compatible
with the industry standard format, these converters operate
at a fixed frequency, have no opto-isolators, and fw
conservative component derating guidelines. They
designed and manufactured to comply with a wide range of
military standards.
2
A
N
E
E
R
A
H
S
S
N
S
+
S
N
N
I
V
+
N
T
R
N
I
E
S
A
C
S
N
Y
S
Design Process
D
f
eManufactureD in the usa
MQFL series converters are:
•Designed for reliability per 641-A guidelies
aturor sseMbly
Q
s
eal™
hi-rel
a
•Designed with components dera
— MIL-HDBK-1547A
Features
— NAVSO P-3641A
xed swtching frequency
• pto-isolators
Qualification P
• Parallel operation with current share
Remote sense
Clock synchronization
MQFL severters ard to:
•MIL-STD
• Primary and secondary referenced enable
• Continuous short circuit and overload protection
• Input under-voltage and over-voltage shutdown
— consisteTCA/D0-160E
•SynQor’s Frst Aialificatio
— consistent with MIL-STD-88
•SynQor’s Long-Term StoragSurvivQualtion
•SynQor’s on-ging life test
Specification Compliance
In-Line ManufactuProcess
MQFL series converters (with MQME filter) are designed to meet:
• MIL-HDBK-704-8 (A through F)
• RTCA/DO-160 Section 16, 17, 18
• MIL-STD-1275 (B, D)
• DEF-STAN 61-5 (part 6)/(5, 6)
• MIL-STD-461 (C, D, E, F)
•AS9100 and I1:200ified acility
•Full compoent trbility
•Temperatcling
•Constant accon
•24, 96, 160 hou-in
• RTCA/DO-160(E, F, G) Section 22
•Three level temperscreening
Product# MQFL-28E-1R5S
Phone 1-888-567-9596
www.SynQor.com
Doc.# 005-0005155 Rev. 3
08/14/13
Page 1
MQFL-28E-1R5S
Output: 1.5V
Current: 40A
Technical Specification
BLOCK DIAGRAM
REGULATION STAGE
ISOLATION S
POSITIVE
OUTPUT
7
8
POSITIVE
1
CURRENT
SENSE
INPUT
INPUT
2
RETURN
OUTPUT
RTURN
CASE
3
GATE DRIVERS
GATE DRERS
CURRENT
LIMIT
ENABLE 2
SHARE
2
11
UVLO
ENABLE 1
4
5
6
MAGNETIC
FEEDK
PRIMARY
CONTROL
ARY
C
SYNC OUT
SYNC IN
10 + SENSE
−
SENSE
9
ONTROL
POWER
TYPICAL CONCTIOAGRAM
1
12
IN
ENA 2
SHARE
+SNS
open
2
11
10
9
IN TN
means
on
4
5
6
ASE
+
+
28 Vdc
_
MQFL
E
-SNS
Load
_
8
en
SYNC OUT
SYNC IN
OUT RTN
+VOUT
7
Product# MQFL-28E-1R5S
Phone 1-888-567-9596
www.SynQor.com
Doc.# 005-0005155 Rev. 3
08/14/13
Page 2
MQFL-28E-1R5S
Output: 1.5V
Current: 40A
Technical Specification
MQFL-28E-1R5S ELECTRICAL CHARACTERISTICS
Parameter
Min. Typ. Max. Units Notes & Conditions
Group A
Subgroup
Vin=28V dc ±5%, Iout=40A, CL=0µF, free running (see Note 10) unless
otherwise specified
ABSOLUTE MAXIMUM RATINGS
Input Voltage
Non-Operating
100
100
-0.8
-1.2
V
V
V
V
Operating
See Note 1
Reverse Bias (Tcase = 125ºC)
Reverse Bias (Tcase = -55ºC)
Isolation Voltage (I/O to case, I to O)
Continuous
-500
-800
-55
500
800
125
135
300
50
V
V
°C
°C
°C
V
Transient (≤100 µs)
Operating Case Temperature
Storage Case Temperature
Lead Temperature (20s)
HB Grade ProductNotes & 16
-65
Voltage at ENA1, ENA2
-1.2
INPUT CHARACTERISTICS
Operating Input Voltage Range
“
16
16
28
28
70
80
V
V
Continous
Transt, 1s
See N
4, 5, 6
Input Under-Voltage Lockout
Turn-On Voltage Threshold
Turn-Off Voltage Threshold
Lockout Voltage Hysteresis
Input Over-Voltage Shutdown
Turn-Off Voltage Threshold
Turn-On Voltage Threshold
Shutdown Voltage Hysteresis
Maximum Input Current
14.75 15.50 16.00
13.80 14.40 15.00
0.50
V
V
V
1, 2, 3
2, 3
1, 2, 3
1.10
1.80
SeNote 15
90
82
3
95
86
9
100
90
15
8
160
5
A
m
mA
mA
mA
1,3
1,3
1,3
Vin out = 40A
1, 2, 3
1, 2, 3
1, 2, 3
1, 2, 3
1, 2, 3
No Load Input Current (operating)
Disabled Input Current (ENA1)
Disabled Input Current (ENA2)
Input Terminal Current Ripple (pk-pk)
OUTPUT CHARACTERISTICS
Output Voltage Set Point (Tcase = 25ºC)
Output Voltage Set Point Over Temperature
Output Voltage Line Regulation
Output Voltage Load Regulation
Total Output Voltage Range
Output Voltage Ripple and Noise Peak
Operating Output Current Range
Operating Output Power Range
Output DC Current-Limit Incepti
Short Circuit Output Current
Back-Drive Current Limit we Enab
Back-Drive Current Limiisable
Maximum Output Capacit
DYNAMIC CHARACTERIS
Output Voltage Deviation Load t
For a Pos. Shange in Load
For a Negge in Load
Settling Time )
Output Voltage Devansient
For a Pos. SteChanoltage
For a Neg. Step Chane ie Voltage
Settling Time (eiter case)
Turn-On Transient
110
4
Vin = 16V, 28V, 70V
n = 16V, 28V, 7
Bdwidth = 100kH– 10MFigure 14
0
148
47
-0
3
1.5
1.50
0
7
1.50
15
1.5
1.53
20
mV
mV
V
mV
A
W
A
A
A
Vout at sads
1
2, 3
“
“ ; Vin = 160V; Iout=40A
“ ; Vout @ (Iouout @ (Iout=40A)
1, 2, 3
1, 2, 3
1, 2, 3
1, 2, 3
1, 2, 3
1, 2, 3
1, 2, 3
1, 2, 3
1, 2, 3
1, 2, 3
See Note 5
11
1.46
1
0
Bandwdth = 10MHz; CL1µF
41
41
40
60
47
13
10
52
e Note 4
≤ 1.2V
53
50
10,000
A
Note 6
-450
3
350
mV
mV
µ
al Iout step = 20A‹-›40A, 4A‹-›20A; CL=11µF
4, 5, 6
4, 5, 6
4, 5, 6
50
“
See Note 7
Vin step = 16V‹-›50V; CL=11µF; see Note 8
-20
-200
2
200
500
mV
mV
µs
“
“
4, 5, 6
4, 5, 6
See Note 5
See Note 7
Output Voltage Rise me
Output Voltage Ovehoot
Turn-On Delay, Rising Vin
6
0
.0
1.5
10
25
8.0
6.0
3.0
ms
%
ms
ms
ms
Vout = 0.15V -› 1.35V
4, 5, 6
See Note 5
4, 5, 6
4, 5, 6
4, 5, 6
ENA1, ENA2 = 5V; see Notes 9 & 12
ENA2 = 5V; see Note 12
ENA1 = 5V; see Note 12
Turn-On Delay, Rising ENA
Turn-On Delay, Rising ENA2
EFFICIENCY
Iout = 40A (16Vin)
TD
TBD
TBD
TBD
TBD
TBD
83
87
82
85
80
83
%
%
%
%
%
%
1, 2, 3
1, 2, 3
1, 2, 3
1, 2, 3
1, 2, 3
1, 2, 3
Iout = 20A (16Vin)
Iout = 40A (28Vi
Iout = 20A (28
Iout = 40A (40Vin)
Iout = 20A (40Vin)
Iout = 40A (70Vin)
Load Fault Power Dissipation
Short Circuit Power Dissipation
TBD
TBD
TBD
TBD
%
W
W
1, 2, 3
1, 2, 3
1, 2, 3
Iout at current limit inception point; See Note 4
Vout ≤ 1.2V
Product# MQFL-28E-1R5S
Phone 1-888-567-9596
www.SynQor.com
Doc.# 005-0005155 Rev. 3
08/14/13
Page 3
MQFL-28E-1R5S
Output: 1.5V
Current: 40A
Technical Specification
MQFL-28E-1R5S ELECTRICAL CHARACTERISTICS (Continued)
Parameter
Min. Typ. Max. Units Notes & Conditions
Group A
Subgroup
Vin=28V dc ±5%, Iout=40A, CL=0µF, free running (see Note 10) unless
otherwise specified
ISOLATION CHARACTERISTICS
Isolation Voltage
Dielectric strength
Input RTN to Output RTN
Any Input Pin to Case
500
500
500
100
100
V
V
V
MΩ
MΩ
nF
1
1
1
1
1
1
Any Output Pin to Case
Isolation Resistance (in rtn to out rtn)
Isolation Resistance (any pin to case)
Isolation Capacitance (in rtn to out rtn)
FEATURE CHARACTERISTICS
Switching Frequency (free running)
Synchronization Input
Frequency Range
Logic Level High
Logic Level Low
Duty Cycle
44
500
550
600
700
kHz
1, 2, 3
500
2.0
-0.5
20
kHz
V
V
1, 2,
1, 2, 3
0.8
80
%
Se Note 5
Synchronization Output
Pull Down Current
Duty Cycle
20
25
mA
%
VSYNC V
Output connected to SYNC Ither M
See Note 5
See Note 5
75
Enable Control (ENA1 and ENA2)
Off-State Voltage
Module Off Pulldown Current
On-State Voltage
0.8
µA
1, 2, 3
See Note 5
1, 2, 3
80
2
Curain requirto ensure moff
Module On Pin Leakage Current
Pull-Up Voltage
20
µA
V
Imax drawn frpin , module on
e Figure A
See Note 5
1, 2, 3
3.2
RELIABILITY CHARACTERISTICS
Calculated MTBF (MIL-STD-217F2)
GB @ Tcase = 70ºC
2800
440
Hrs.
103 Hrs.
AIF @ Tcase = 70ºC
WEIGHT CHARACTERISTICS
Device Weight
79
g
Electrical Characteristics Notes
1. Converter will undergo input oltage shutdow
2. Derate output power to 50% of wer at Tcase = 35ºC. 135is abovfied operang range.
3. High or low state of inpuoltage ist for about 200µs ted on bckout oshutdown circuitry.
4. Current limit inception ed as twhere the output voltdroppe% of its nominal value.
5. Parameter not tested bteed to mit specified.
6. Load current transition tim.
7. Settling time measured from ransiet to the pohere the output has returned to ±50mV of its final value.
8. Line voltage sition time ≥ 1
9. Input volte ≤ 250µs.
10. Operating that a synchnization frequency aboree rung frequency will cause the converter’s efficiency to be slightly reduced and it
may also cause a sliin the maximucurrent/availble. For more information consult the factory.
11. SHARE pin ouputs a re warninpulse g a fault cn. See Current Share section of the Control Features description.
12. After a disable r faut evmodule is ted frrestarting fo0ms. See Shut Down section of the Control Features description.
13. Only the ES and HB grade roducts are tthatures. The C- grade products are tested at one temperature. Please refer to the
Construction and Envionmental Stress creenins tabdetails.
14. These derating curapply for the S and HB produThe C- grade product has a maximum case temperature of 70ºC.
15. Input Over Voltage hutdown test is run at no loload is beyond derating condition and could cause damage at 125ºC.
16. The specified operating case mperature for ES grducts is -45ºC to 100ºC. The specified operating case temperature for C- grade
products is 0ºC to 70ºC.
Product# MQFL-28E-1R5S
Phone 1-888-567-9596
www.SynQor.com
Doc.# 005-0005155 Rev. 3
08/14/13
Page 4
MQFL-28E-1R5S
Output: 1.5V
Current: 40A
Technical Figures
100
95
90
85
80
75
70
65
60
100
95
90
85
80
75
70
65
60
16 Vin
28 Vin
40 Vin
70 Vin
16 in
28 Vi
40 Vin
n
-ºC
5ºC
0
4
8
12
16
20
24
28
32
36
40
Load Current (A)
Casemperatur
Figure 1: Efficiency at nominal output voltage vs. load current for
minimum, nominal, and maximum input voltage at Tcase=25°C.
igure 2cy at nomnal output voe and 6d powvs.
cae tempeinput voltage of 16V, 0V, and
22
20
18
16
14
12
10
8
20
16
14
10
8
6
6
16 Vin
16 Vin
28 Vin
40 Vin
70 Vin
4
2
0
Vin
4n
7Vin
4
2
0
-55ºC
25ºC
125ºC
0
4
8
12
16
20
24
32
36
40
urrent (A)
Case Temperature (ºC)
Figure 4: Power dissipation at nominal output voltage and 60% rated
wer vs. case temperature for input voltage of 16V, 28V, 40V, and 70V.
Figure 3: Power dissipnominat voltage vs. load curre
for minimum, nominal, anum inpoltage at Tce=25°C.
50
40
30
20
10
0
75
45
30
15
0
2.00
1.75
1.50
1.25
1.00
0.75
Tmax = 105ºC, Vin = 70
Tmax = 105ºC, Vin = 5
Tmax = 105ºC, Vin = 28
Tmax = 125ºC, Vin = 70
Tmax = 125ºC, Vin = 50
Tmax = 1258
Tmax =
Tmax = 145º
T145ºC, V
0.50
28 Vin
0.25
0.00
25
35
5
6
75
85
95
105 115 125 135 145
0
5
10
15
20
25
30
35
40
45
50
Cse Temperature (ºC)
Load Current (A)
Figure 5: Output Curretput Power derating curve as a function of
Tcase and the Maximum dpower MOSFET junction temperature
(see Note 14).
Figure 6: Output voltage vs. load current showing typical current limit
curves.
Product# MQFL-28E-1R5S
Phone 1-888-567-9596
www.SynQor.com
Doc.# 005-0005155 Rev. 3
08/14/13
Page 5
MQFL-28E-1R5S
Output: 1.5V
Current: 40A
Technical Figures
Figure 7: Turn-on transient at full resistive load and zero output
capacitance initiated by ENA1. Input voltage pre-applied. Ch 1: Vout
(500mV/div). Ch 2: ENA1 (5V/div).
igure n transienat full resistiload anoutput
pacitand by EA1. Input volpre-apph 1: out
(500mV/div). 1 (5V/div
Figuurn-on transient at full resistive load and zero output
apacitance initiated by Vin. ENA1 and ENA2 both previously high. Ch
out (500mV/div). Ch 2: Vin (10V/div).
Figure 9: Turn-on trafull reoad and zero output
capacitance initiated by nput vpre-applied. Ch 1: Vout
(500mV/div). Ch 2: ENA2
Figure 11: Output volponse to step-change in load current
50%-100%-50% of Iout oad cap: 1µF ceramic cap and 10µF,
100mΩ ESR tantalum cap. 1: Vout (200mV/div). Ch 2: Iout (20A/
div).
Figure 12: Output voltage response to step-change in load current 0%-
50%-0% of Iout (max). Load cap: 1µF ceramic cap and 10µF, 100mΩ
ESR tantalum cap. Ch 1: Vout (200mV/div). Ch 2: Iout (20A/div).
Product# MQFL-28E-1R5S
Phone 1-888-567-9596
www.SynQor.com
Doc.# 005-0005155 Rev. 3
08/14/13
Page 6
MQFL-28E-1R5S
Output: 1.5V
Current: 40A
Technical Figures
Figure 13: Output voltage response to step-change in input voltage
(16V - 50V - 16V). Load cap: 10µF, 100mΩ ESR tantalum cap and 1µF
ceramic cap. Ch 1: Vout (200mV/div). Ch 2: Vin (20V/div).
igure 1et-up diagam showing suremts for Iut
Trminal rrent (igure 15) and t Voltaple (Figure
16).
citor and 10µF tantalum capacitor. Bandwidth: 10MHz. See
14.
Bandwidth: 20MHz. See F
across the output terminalsh 1: Vout (500mV/div). Ch 2: Iout (20A/
div).
MQFL converter. Ch1: SYNC OUT: (1V/div).
Product# MQFL-28E-1R5S
Phone 1-888-567-9596
www.SynQor.com
Doc.# 005-0005155 Rev. 3
08/14/13
Page 7
MQFL-28E-1R5S
Output: 1.5V
Current: 40A
Technical Figures
0.1
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
-100
0.01
0.001
16Vin
28Vin
40Vin
16Vi
8Vin
0.0001
10
100
1,000
Hz
10,000
100,000
100
1,000
Hz
10,000
10
igure nitude of inremental forrd tran(FT = vout/
n) for mominaland maximum t voltagll ratd
por.
Figure 19: Magnitude of incremental output impedance (Zout = vout/
iout) for minimum, nominal, and maximum input voltage at full rated
power.
Figure 21: Magnitude ementatransmission (RT = ii
iout) for minimum, nommaximput voltage at full rated
power.
Figure 22: Magnitude of incremental input impedance (Zin = vin/iin) for
nimum, nominal, and maximum input voltage at full rated power.
Figure 23: High frequducted emissions of standalone MQFL-
28-05S, 5Vout module at utput, as measured with Method
CE102. Limit line shown is e ‘Basic Curve’for all applications with a
28V source.
Figure 24: High frequency conducted emissions of MQFL-28-05S,
5Vout module at 120W output with MQFL-28-P filter, as measured
with Method CE102. Limit line shown is the ‘Basic Curve’for all
applications with a 28V source.
Product# MQFL-28E-1R5S
Phone 1-888-567-9596
www.SynQor.com
Doc.# 005-0005155 Rev. 3
08/14/13
Page 8
MQFL-28E-1R5S
Output: 1.5V
Current: 40A
Application Section
tional control features provided by the MQFL converter.
BASIC OPERATION AND FEATURES
The MQFL DC/DC converter uses a two-stage power conversion
topology. The first, or regulation, stage is a buck-converter that
keeps the output voltage constant over variations in line, load,
and temperature. The second, or isolation, stage uses trans-
formers to provide the functions of input/output isolation and
voltage transformation to achieve the output voltage required.
CONTROL FEATURES
ENABLE: The MQFL converttwo eins. Both must
have a logic high level for the ter to abled. A logic
low on either pin will inbit the r.
The ENA1 pin (pin ) is referenced wiect to the convert-
er’s input return ). TENA2 pin pin 12) is referenced
with respect to the ter’s outt return (pin 8). This per-
mits the corter to bited om either or the
output side.
Both the regulation and the isolation stages switch at a fixed
frequency for predictable EMI performance. The isolation stage
switches at one half the frequency of the regulation stage, but
due to the push-pull nature of this stage it creates a ripple at
double its switching frequency. As a result, both the input and
the output of the converter have a fundamental ripple frequency
of about 550 kHz in the free-running mode.
Regas of which pin is sed to inhe converter, the
reguland the isoltion stages re turf. However,
when terter is ihibited throthe En, the bias
supply is ed off, wheras thply remon when
the converter is inhibited thrthe En. A her input
current therefore resthe latse.
Rectification of the isolation stage’s output is accomplished with
synchronous rectifiers. These devices, which are MOSFETs
with a very low resistance, dissipate far less energy than w
Schottky diodes. This is the primary reason why the M
converters have such high efficiency, particularly at low output
voltages.
Both enpins are ternally pullh so that an open con-
nection on both pinenable the cer. Figure A shows
the equivalent cuit into eitheenable pins. It is TTL
copatible.
Besides improving efficiency, the synchronous rrmit
operation down to zero load current. There is no long
for a minimum load, as is typical for convrters thause d
for rectification. The synchronous rectifers actually permit
negative load current to flow back nto thconverter’output
terminals if the load is a source ort or ong term nergy.
The MQFL converters employ e current limit” to
keep this negative output terminal cur
5.6V
82K
1N4148
PIN 4
R PIN 12)
EABLE
TO ENABLE
CIRCUITRY
There is a control circuit the input aoutput es
of the MQFL converthat nes the conductio
of the power swithese ccommunicate with e
other across the isolatier thrh a magnetically couple
device. No opto-isolatored.
250K
125K
2N3904
PIN 2
(OR PIN 8)
IN RTN
A separapply provipower to both thut and
output controAmong other tthis biply
permits the onverate indefinitelo a short
and to avoid a hiccup me, even ua toustt-up coi-
tion.
Figure A: Circuit diagram shown for reference only, actual circuit
components may differ from values shown for equivalent circuit.
SHUT DOWN: The MQFL converter will shut down in response
to only four conditions: ENA1 input low, ENA2 input low, VIN
input below under-voltage lockout threshold, or VIN input above
over-voltage shutdown threshold. Following a shutdown event,
there is a startup inhibit delay which will prevent the converter
from restarting for approximately 300ms. After the 300ms delay
elapses, if the enable inputs are high and the input voltage is
within the operating range, the converter will restart. If the VIN
input is brought down to nearly 0V and back into the operating
range, there is no startup inhibit, and the output voltage will
rise according to the “Turn-On Delay, Rising Vin” specification.
An input under-vltage lockout feature wtereis is pro-
vided, as well as an input ver-voltage shutdoThere is also
an output current limit nearly constant as he load imped-
ance decreases to a shorit (i.e., there is not fold-back
or fold-forward cteristic e outpt current under this
condition). When fault ived, the output voltage
rises expony to iominal value without an overshoot.
The MQFL convecontrol circuit does not implement an out-
put over-voltage limn over-temperature shutdown.
The following sections scribe the use and operation of addi-
Product# MQFL-28E-1R5S
Phone 1-888-567-9596
www.SynQor.com
Doc.# 005-0005155 Rev. 3
08/14/13
Page 9
MQFL-28E-1R5S
Output: 1.5V
Current: 40A
Application Section
REMOTE SENSE: The purpose of the remote sense pins is
to correct for the voltage drop along the conductors that con-
nect the converter’s output to the load. To achieve this goal, a
separate conductor should be used to connect the +SENSE pin
(pin 10) directly to the positive terminal of the load, as shown
in the connection diagram on Page 2. Similarly, the –SENSE
pin (pin 9) should be connected through a separate conductor
to the return terminal of the load.
of SYNC OUT has a duty cycle of 50% and a frequency that
matches the switching frequency of the converter with which
it is associated. This frequency is the free-running fre-
quency if there is no synchronization the SYNC IN pin,
or the synchronization frequethere
The SYNC OUT signal is availablwhen tDC input volt-
age is above approximtel12V anthe onverter is not
inhibited through thENA1 pin. An inhough the ENA2 pin
will not turn the OUT nal off.
NOTE: Even if remote sensing of the load voltage is not desired,
the +SENSE and the -SENSE pins must be connected to +Vout
(pin 7) and OUTPUT RETURN (pin 8), respectively, to get proper
regulation of the converter’s output. If they are left open, the
converter will have an output voltage that is approximately
200mV higher than its specified value. If only the +SENSE pin
is left open, the output voltage will be approximately 25mV too
high.
NOTE: An QFL cothat has SYNC Idriven by
the SYNC OUT n of a sQFL converter wi
of its sitching cycle delaproximately 180 degrees
tive to at of the second coerter.
igure s the equvalent circuooking e SYNIN
pin. Figows the equivalecuit lointo the
SYNC OUT pi
Inside the converter, +SENSE is connected to +Vout with
resistor value from 100W to 274W, depending on output
age, and –SENSE is connected to OUTPUT RETURN with a 10W
resistor.
5
It is also important to note that when remote sened, the
voltage across the converter’s output terminals (p8)
will be higher than the converter’s nominal output volt
to resistive drops along the connecting wes. This higher
age at the terminals produces a greater voltage stres on the
converter’s internal components anmay cuse the converter
to fail to deliver the desired outage at the low d of
the input voltage range at the hithe load current
and temperature range. Please consult y for details.
TO SYNC
CIRCUITRY
PIN 6
SYNC IN
IN
PIN 2
Figure B: Equivaent circuit looking into the SYNC IN pin with
spect to the IN R(input return) pin.
SYNCHRONIZATION: Thconverter’s switching e-
quency can be syncized tternal frequency s
that is in the 500 k00 kHz e. A pulse train at t
desired frequency shopplied the SYNC IN pin (pin
6) with respect to the INPURN (pin 2). pulse train
should hauty cycle in % to 80% raIts low
value should 0.8V to guaranteed to be ieted
as a logic low, ah value should ove 2.0e
guaranteed to be inas a logiigh. transition
between the two states hould be len 30
5V
5K
SYNC OUT
FROM SYNC
CIRCUITRY
PIN 5
PIN 2
IN RTN
OPEN COLLECTOR
OUTPUT
If the MQFL conver is not to be synchd, thYNC IN
pin should be left open circuit. The convertethen operate
in its free-running moda frequency of apximately 550
kHz.
Figure C: Equivalent circuit looking into SYNC OUT pin with
respect to the IN RTN (input return) pin.
If, due to a faultYNC IN held in either a logic low
or logic high ste coously, tL converter will revert
to its free-rfrequcy.
CURRENT SHARE: When several MQFL converters are placed
in parallel to achieve either a higher total load power or N+1
redundancy, their SHARE pins (pin 11) should be connected
together. The voltage on this common SHARE node represents
the average current delivered by all of the paralleled converters.
The MQFL conveso has a SYNC OUT pin (pin 5). This
output can be used ve the SYNC IN pins of as many as
ten (10) other MQFL crters. The pulse train coming out
Product# MQFL-28E-1R5S
Phone 1-888-567-9596
www.SynQor.com
Doc.# 005-0005155 Rev. 3
08/14/13
Page 10
MQFL-28E-1R5S
Output: 1.5V
Current: 40A
Application Section
Each converter monitors this average value and adjusts itself
so that its output current closely matches that of the average.
100,000
10,000
1,000
00
Since the SHARE pin is monitored with respect to the OUTPUT
RETURN (pin 8) by each converter, it is important to connect
all of the converters’ OUTPUT RETURN pins together through a
low DC and AC impedance. When this is done correctly, the
converters will deliver their appropriate fraction of the total load
current to within +/- 10% at full rated load.
Whether or not converters are paralleled, the voltage at the
SHARE pin could be used to monitor the approximate aver-
age current delivered by the converter(s). A nominal voltage
of 1.0V represents zero current and a nominal voltage of 2.2V
represents the maximum rated current, with a linear relationship
0.00
0.03
0.
0.09
0.12
15
0.
Increase in Vou
in between.
The internal source resistance of a converter’s
SHARE pin signal is 2.5 kW. During an input voltage fault or
primary disable event, the SHARE pin outputs a power failure
warning pulse. The SHARE pin will go to 3V for approximately
14ms as the output voltage falls.
igure EVoltagTrim Graph
where:
nom = the converter’s nl outpge,
the desired oput v(greater than Vnom), and
Rtn Ohms.
NOTE: Converters operating from separate input filters with
reverse polarity protection (such as the MQME-28-T filter) with
their outputs connected in parallel may exhibit hioperation
at light loads. Consult factory for details.
As the output oltatrimmed upproduces a greater
vage stress on the cer’s internal components and may
cause the converter to fail iver the desired output voltage
at the lof the input ve range at the higher end of
the load cnd temperaure range. Please consult the
factory for detctory trimmed converters are available
bquest.
OUTPUT VOLTAGE TRIM: If desired, it is possiblto in
the MQFL converter’s output voltage abve its nomnal valu
To do this, use the +SENSE pin (pin 10) or this trim function
instead of for its normal remote se funtion, as sown in
Figure D. In this case, a resiss the +SENSE pin to
the –SENSE pin (which should still bd to the output
return, either remotely or locally). The vale trim resistor
should be chosen accordine following equation or om
Figure E:
INPUT UNDER-VOLTAGE LOCKOUT: The MQFL converter
as an under-volge lockout feature that ensures the converter
e off if te input voltage is too low. The threshold of input
vat wich the converter will turn on is higher that the
thresat which it will turn off. In addition, the MQFL con-
erter will not respond to a state of the input voltage unless it
7.5
Rtrim =
Vout - 0.02
remained in that state for more than about 200µs. This hys-
esis and the delay ensure proper operation when the source
impedance is high or in a noisy environment.
1
12
VIN
ENA 2
11
IN
SHARE
3
10
SE
+SNS
+
28 Vdc
Rtrim
MQFL
_
4
5
6
9
8
7
ENA 1
-SNS
OUT RTN
+VOUT
mea
on
_
SYNC OUT
SYNC IN
Load
+
Figure D: Typical connecn for output voltage trimming.
Product# MQFL-28E-1R5S
Phone 1-888-567-9596
www.SynQor.com
Doc.# 005-0005155 Rev. 3
08/14/13
Page 11
MQFL-28E-1R5S
Output: 1.5V
Current: 40A
Application Section
INPUT OVER-VOLTAGE SHUTDOWN: The MQFL converter
also has an over-voltage feature that ensures the converter will
be off if the input voltage is too high. It also has a hysteresis
and time delay to ensure proper operation.
When the converter is mounted on a metal plate, the plate will
help to make the converter’s case bottom a uniform tempera-
ture. How well it does so depends othickness of the plate
and on the thermal conductance of the layer (e.g. ther-
mal grease, thermal pad, etc.ween and the plate.
Unless this is done very well, portanto mistake the
plate’s temperature for he maxase teerature. It is
easy for them to be as much as 5-ffernt at full power
and at high tempetures. It is suggeat a thermocouple
be attached direhe cverter’s cathrough a small hole
in the plate when iting how ot the converter is getting.
Care must o be mensuthat thelarge
thermal resistance betwethermocouple and t
to whever adhesive mighused to hold the thermocoup
in pla
BACK-DRIVE CURRENT LIMIT: Converters that use MOSFETs
as synchronous rectifiers are capable of drawing a negative cur-
rent from the load if the load is a source of short- or long-term
energy. This negative current is referred to as a “back-drive
current”.
Conditions where back-drive current might occur include paral-
leled converters that do not employ current sharing, or where
the current share feature does not adequately ensure sharing
during the startup or shutdown transitions. It can also occur
when converters having different output voltages are connected
together through either explicit or parasitic diodes that, while
normally off, become conductive during startup or shutdown.
Finally, some loads, such as motors, can return energy to thr
power rail. Even a load capacitor is a source of back-
energy for some period of time during a shutdown transient.
NPUT M INSTABILITY: s concan ccur
because aC converter ppearementas a nega-
tive resistance load. A detapplicnote ted “Input
nstability” is available SynQsite which pro-
derstanding owhy tability arises, and shows
the prefered solutior correcting
To avoid any problems that might arise due to back-drive cur-
rent, the MQFL converters limit the negative chat the
converter can draw from its output terminals. Told
for this back-drive current limit is placed sufficiently be
so that the converter may operate propy down to zero
but its absolute value (see the Electrical Caracteristicpage) i
small compared to the converter’s rted output current
THERMALCONSIDERATIONSowsthesuggested
Power Derating Curves for this converunction of the
case temperature, input ge and the um desired
power MOSFET junction tere. All other compots
within the convertre con its hottest MO
The Mil-HDBK-1547A nent erating gdeline calls
for a maximum componmperature of C. Figure
5 therefone powrating curve nsures
this limit ined. It as been SynQor’s sive
experience that ong-term convoperatn
be achieved with a imum coonenemperaturf
125ºC. In extrme cass, a maximmprf 145ºC
is permissible, bt not recommended g-tereration
where high reliaity is required. Deratrves or these
higher temperature limitare also included gure 5. The
maximum case temperat which the convrter should be
operated is 135ºC.
Product# MQFL-28E-1R5S
Phone 1-888-567-9596
www.SynQor.com
Doc.# 005-0005155 Rev. 3
08/14/13
Page 12
MQFL-28E-1R5S
Output: 1.5V
Current: 40A
Stress Screening
CONSTRUCTION AND ENVIRONMENTAL STRESS SCREENING OPTIONS
C-Grade
ES-Grade
HB-Grade
Consistent with
MIL-STD-883F
Screening
specified from
specified from
(
0spºeCcitfioe+d7f0roºmC ) (-45 ºC to 0 ºC) ºC to +125 ºC
)
Element Evaluation
No
Yes
Yes
Yes
Internal Visual
Temperature Cycle
Constant Acceleration
*
Yes
Condition B
(-5ºC to +125 º
ndition C
(o +150 C)
Method 1010
Method 2001
(Y1 Direction)
ondition A
5000g)
50
Burn-in
Method 1015
2rs @ +125 ºC
96 125 ºC
160 Hrs @ +125 ºC
Final Electrical Test
Metho5005 (GrouA)
+25 ºC
QorSeal
*
25, +100 ºC
Full QorSeal
Yes
-55, +25, +125 ºC
Full QorSeal
Yes
Mechanical Seal,
Thermal, and
Coating Prs
ternal Visual
Constrction Proess
QorSeal
QorSeal
QorSeal
* Per IPC-A-610 Class 3
MilQor conved filtee offered in three variations of environmental stress screening options. All MilQor converters use SynQor’s proprietary
QorSeal™ Hi-Rebly ocess that includes a Parylene-C coating of the circuit, a high performance thermal compound filler, and a nickel barrier
gold plated alumin. Each successively higher grade has more stringent mechanical and electrical testing, as well as a longer burn-in cycle. The ES-
and HB-Grades are alsructed of components that have been procured through an element evaluation process that pre-qualifies each new batch of
devices.
Product# MQFL-28E-1R5S
Phone 1-888-567-9596
www.SynQor.com
Doc.# 005-0005155 Rev. 3
08/14/13
Page 13
MQFL-28E-1R5S
Output: 1.5V
Current: 40A
Mechanical Diagrams
0 [6.35]
+VIN
ENA 2
SHARE
+SNS
1
12
SEE NOTE 7
IN RTN
2
11
1.50 [38.1]
0.5.08]
TYPNON-CUM.
MQFL-28E-1R5S-X-ES
DC-DC CONVERTER
CASE
3
10 1.260
ENA 1
28Vin 1.5Vout @ 40A
4
-SNS
[32.00]
9
8
7
MADE IN USA
SYNC OUT
OUT RTN
+VOUT
5
0.040 [1.02]
S/N 0000000 D/C 3205-301 CAGE 1WX10
SYNC IN
6
2.50 [63.50]
2.760 [70.10]
3.00 [76.2]
0.050 [1.27]
0.128 [3.25]
.6]
2.96 [75.2]
[5.79]
0.390 [9.91]
e X
6.35]
+VIN
2
1
2
3
4
12
11
SEE NOTE 7
0.200 [5.08]
TYP.
IN RTN
CASE
+
[38.1]
MQFL-281R5S-U-ES
DC-DONVERTER
28VVout @ 40A
10 1.260
NON-CUM.
ENA 1
-SNS
[32.00]
8
7
SYNC OUT
SYNC IN
OUT RTN
+VOUT
5
MADE IN A
0.040
[1.02]
PIN
S/N 000AGE 1WX10
6
0.42
[10.7]
2.50 [63.5]
760 [70.10]
0 [76.2]
0.050 [1.27]
0.128 [3.25]
0.22 [5.6]
2.80 [71.1]
0.390 [9.91]
Case U
PIN DESIGNATIONS
Pin # Function Pin # Function
NOTES
1)
Pins 0.040’’ (1.2mm) diameter
2)
Pin Material: Copper Al
Finish: Gold over Nicg, followed by Sn/Psolder dip
All dimensions in inches (lerances: .xx +/-0.02 in. (x.x +/-0.5mm)
x.xxx +/-0.010 .xx +/-)
Weight: 2.8 oz (7typical
WorkmanMeetxceeds IP610 Class III
Print LabeTop rface per Product Label Format Drawing
Pin 1 identificole, not intended for mounting (case X and U)
Baseplate flatnesnce is 0.004” (.10mm) TIR for surface.
1
2
3
4
5
6
Positive input
Input return
Case
Enable 1
Sync output
Sync input
7
8
9
Positive output
Output return
- Sense
3)
4)
5)
6)
7)
8)
10 + Sense
11 Share
12 Enable 2
Product# MQFL-28E-1R5S
Phone 1-888-567-9596
www.SynQor.com
Doc.# 005-0005155 Rev. 3
08/14/13
Page 14
MQFL-28E-1R5S
Output: 1.5V
Current: 40A
Mechanical Diagrams
0.300 [7.62]
1.150 [29.21]
0.140 [3.56]
0.250 [6.35]
TYP
0.250 [6.35]
+VIN
ENA 2
SHARE
1
12
11
10
9
0.200
TYP. NO
2.000
[50.80]
IN RTN
2
3
4
5
6
CASE
+SNS
MQFL-28E-1R5S-Y-ES
DC-DC CONVERTER
28Vin 1.5Vout @ 40A
1.50
[38.1]
ENA 1
-SNS
SYNC OUT
SYNC IN
MADE IN USA OUT RTN
8
1.750
[44.45]
S/N 0000000 D/C 3211-301 CAGE 1WX10
+VOUT
7
0.04[1.0]
PIN
0.0
1.750 [44.45]
2.50 [63.5]
0.375 [9.52]
0[5.6]
2.96 [75.2]
0.228 [5.7
0.3[9.91]
Case Y
Case Z
t of Y)
Case W
(variant of Y)
0.250 [6.35]
0.250 [6.35]
0.200 [5.08]
P. NON-CUM.
0.200 [5.08]
TYP. NON-CUM.
0.040 [1.02]
PIN
0.040
PIN
0.22 [5.6]
0.050 [1.27
[10.7]
0.050 [1.27]
0.22 [5.6]
.36 [9.14]
2.80 [71.1]
0.525 [13.33]
0.390
[9.91]
0.525 [1
0.390
[9.91]
2.80 [71.
PIN DESIGNATIONS
Pin # Function Pin # Function
NOTES
1)
Pins 0.040’’ (1.2mm) diameter
2)
Pin Material: Copper Al
Finish: Gold over Nicg, followed by Sn/Psolder dip
All dimensions in inches (lerances: .xx +/-0.02 in. (x.x +/-0.5mm)
x.xxx +/-0.010 .xx +/-)
Weight: 2.8 oz (7typical
WorkmanMeetxceeds IP610 Class III
Print LabeTop rface per Product Label Format Drawing
Pin 1 identificole, not intended for mounting (case X and U)
Baseplate flatnesnce is 0.004” (.10mm) TIR for surface.
1
2
3
4
5
6
Positive input
Input return
Case
Enable 1
Sync output
Sync input
7
8
9
Positive output
Output return
- Sense
3)
4)
5)
6)
7)
8)
10 + Sense
11 Share
12 Enable 2
Product# MQFL-28E-1R5S
Phone 1-888-567-9596
www.SynQor.com
Doc.# 005-0005155 Rev. 3
08/14/13
Page 15
MQFL-28E-1R5S
Output: 1.5V
Current: 40A
Ordering Information
MilQor Converter FAMILY MATRIX
The tables below show the array of MilQor converters available. When ordering SynQor conveplease ensure that
you use the complete part number according to the table in the last page. Contact the facory foequirements.
Single Output
Duautput †
1.5V
1.8V
2.5V
3.3V
5V
6V
7.5V
9V
12V
15V
28V
12V
15V
Full Size
MQFL-28
(1R5S) (1R8S) (2R5S) (3R3S)
(05S)
(06S)
(7R5S)
(09S)
(12S)
(15S)
(28S)
(12D)
(15D)
16-40Vin Cont.
24A
Total
10A
8
Total
40A
40A
40A
40A
40A
40A
40A
40A
40A
40A
40A
40A
40A
40A
40A
30A
30A
30A
30A
30A
24A
24A
20A
20A
24A
20A
20A
7A
17A
16A
16A
13A
13A
16A
13A
A
11A
11A
13
10A
10A
8A
4A
4A
16-50Vin 1s Trans.*
Absolute Max Vin = 60V
MQFL-28E
16-70Vin Cont.
To
10A
otal
8A
Total
16-80Vin 1s Trans.*
Absolute Max Vin =100V
MQFL-28V
16-40Vin Cont.
6.5A
A
8A
A
3.3A
5.5-50Vin 1s Trans.*
Absolute Max Vin = 60V
MQFL-28VE
16-70Vin Cont.
8A
5.5-80Vin 1s Trans.*
Absolute Max Vin = 100V
MQFL-270
155-400Vin Cont.
24A
Total
10A
Total
8A
Total
10A
155-475Vin 1s Trans.*
Absolute Max Vin = 550V
MQFL-270L
15A
Total
6A
Total
5A
Total
65-350Vin Cont.
40A
22A
15A
12A
10A
8A
6A
2.7A
65-475Vin 1s Trans.*
Absolute Max Vin = 550V
Single Ou
Dual Output †
1.5V
2.5V
3.3V
5V
6V
9V
12V
15V
28V
5V
12V
15V
Half Size
R5S) 2R5S) (3R3S)
(05S)
(7R
S)
(12S)
(15S)
(28S)
(05D)
(12D)
(15D)
MQHL-28
16-40Vin Cont.
10A
Total
4A
Total
3.3A
Total
A
10A
20A
20A
0A
20A
2
1
15A
A
5A
10A
1
8A
8A
4A
A
6.6A
3.3A
5.5A
5.5A
4A
4A
2A
3.3A
3.3A
1.8A
1.8A
0.9A
16-50Vin 1s Trans.*
Absolute M60V
MQHL
16-70Vin Cont.
10A
Total
4A
Total
3.3A
Total
16-80Vin 1s Tns.*
Absolute Max Vi=100V
MQHR-28
16-40Vin Cont.
5A
Total
2A
Total
1.65A
Total
2.75A
1.65A
16-50Vin 1s Trans.*
Absolute Max Vin = 60V
MQHR-28E
16-70Vin Cont.
5A
Total
2A
Total
1.65A
Total
10A
A
10A
7.5A
5A
4A
3.3A
2.75A
2A
1.65A
0.9A
16-80Vin 1s Trans.*
Absolute Max Vin = 100V
Check with factvailability.
†80% of total outpnt available on any one output.
*Converters may be oat the highest transient input voltage, but some component electrical and thermal stresses would be beyond MIL-
HDBK-1547A guidelines.
Product# MQFL-28E-1R5S
Phone 1-888-567-9596
www.SynQor.com
Doc.# 005-0005155 Rev. 3
08/14/13
Page 16
MQFL-28E-1R5S
Output: 1.5V
Current: 40A
Ordering Information
PART NUMBERING SYSTEM
The part numbering system for SynQor’s MilQor DC-DC converters follows the format shown in the e below.
Not all combinations make valid part numbers, please contact SynQor for availability. See the Product Sumweb pore options.
Example: MQFL-28E-1R5S-Y-ES
Output Voltage(s)
Input
Voltage
Range
Model
Name
Package Out/
Pin Config
Scrg
Grde
Single
Dual
Output
Output
1R5S
1R8S
2R5S
3R3S
05S
06S
7R5S
09S
28
28E
28V
28VE
W
Z
MQFL
MQHL
MQHR
05D
12D
1
H
270
270L
12S
15S
28
APPLICATION NOTES
A variety of application notes and technie papers can bwnloaded in pformat from the SynQor website.
PATENTS
SynQor holds the followiatents, or more of which apply to roduct listed in this document. Additional patent applications may be
pending or filed in the futu
5,999,4
6,894,468
5,687
6,222,742
6,896,52
7,269,034
1
6,
6,927,9
,272,021
890
6,57709
7,050,3
2,023
149,597
6,594,159
7,072,190
7,558,083
6,731,520
7,085,146
7,564,702
Contact SynQor for furer information aorder:
Warranty
SynQor offers a two (2) year limited warranty. Complete warranty informa-
tion is listed on our website or is available upon request from SynQor.
Phone:
Toll Free: 1-567-996
-849-0600
Fax:
ail:
W
978-0602
mqnbofae@synqor.com
www.synqor.com
Information furnished by SynQor is believed to be accurate and reliable.
However, no responsibility is assumed by SynQor for its use, nor for any
infringements of patents or other rights of third parties which may result
from its use. No license is granted by implication or otherwise under any
patent or patent rights of SynQor.
Addr155 Swanson Road
oxborough, MA 01719
USA
Product# MQFL-28E-1R5S
Phone 1-888-567-9596
www.SynQor.com
Doc.# 005-0005155 Rev. 3
08/14/13
Page 17
相关型号：
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