MQFL-270-15S
Single Output
H
igH
R
eliability
DC-DC C
onveRteR
155-400 V
Continuous Input
155-475 V
Transient Input
15 V
Output
8A
Output
to
86% @ 4A / 88% @ 8A
Efficiency
F
ull
P
oweR
o
PeRation
: -55ºC
The MilQor
@
series of high-reliability DC-DC converters
brings SynQor’s field proven high-efficiency synchronous
rectifier technology to the Military/Aerospace industry.
SynQor’s innovative QorSeal
TM
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 follow
conservative component derating guidelines.
They are
+125ºC
2
ENA
RE
SHA
+SNS
-SNS
RTN
OUT
T
+VOU
+VIN
N
IN RT
E
CAS
1
ENA
designed and manufactured to comply with a wide range of
military standards.
Design Process
MQFL series converters are:
•
Designed for reliability per NAVSO-P3641-A guidelines
•
Designed with components derated per:
— MIL-HDBK-1547A
— NAVSO P-3641A
Qualification Process
MQFL series converters are qualified to:
•
MIL-STD-810F
— consistent with RTCA/D0-160E
• SynQor’s First Article Qualification
— consistent with MIL-STD-883F
• SynQor’s Long-Term Storage Survivability Qualification
•
SynQor’s on-going life test
In-Line Manufacturing Process
• AS9100 and ISO 9001:2008 certified facility
•
Full component traceability
•
Temperature cycling
•
Constant acceleration
•
24, 96, 160 hour burn-in
•
Three level temperature screening
Product# MQFL-270-15S
Phone 1-888-567-9596
MQ
DC Con
T
C OU
SYN
C IN
SYN
0
000
000
S/n
A
@8
X10
out
E 1W
DC- in 15V
CAG
01
V
5-3
320
270
D/C
270
tEr
FL-
VEr
S
Y-E
5S-
-1
D
esigneD
& M
anufactureD in the
usa
f
eaturing
Q
or
s
eal
™
h
i
-r
el
a
sseMbly
Features
•
•
•
•
•
•
•
Fixed switching frequency
No opto-isolators
Parallel operation with current share
Remote sense
Clock synchronization
Primary and secondary referenced enable
Continuous short circuit and overload protection
with auto-restart feature
•
Input under-voltage and over-voltage shutdown
Specification Compliance
MQFL series converters (with MQME filter) are designed to meet:
•
MIL-HDBK-704-7 (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)
•
RTCA/DO-160(E, F, G) Section 22
www.SynQor.com
Doc.# 005-0005056 Rev. D
11/21/13
Page 1
MQFL-270-15S
Output:
15V
Current:
8A
Technical Specification
BLOCK DIAGRAM
REGULATION STAGE
1
+Vin
CURRENT
SENSE
T1
ISOLATION STAGE
7
+Vout
T1
ISOLATION BARRIER
2
INPUT
RETURN
T2
8
OUTPUT
RETURN
3
CASE
GATE DRIVERS
UVLO
OVSD
T2
GATE DRIVERS
CURRENT
LIMIT
PRIMARY
CONTROL
4
ENABLE 1
5
SYNC OUT
MAGNETIC
12
ENABLE 2
6
SYNC IN
DATA COUPLING
11
SECONDARY
CONTROL
SHARE
BIAS POWER
10
+ SENSE
CONTROL
POWER
TRANSFORMER
9
−
SENSE
TYPICAL CONNECTION DIAGRAM
1
2
270 Vdc
+
__
+VIN
IN RTN
CASE
ENA 1
SYNC OUT
SYNC IN
ENA 2 12
SHARE 11
3
4
open
means
on
MQFL
+SNS 10
-SNS 9
OUT RTN 8
+VOUT 7
open
means
on
+
Load
__
5
6
Product# MQFL-270-15S
Phone 1-888-567-9596
www.SynQor.com
Doc.# 005-0005056 Rev. D
11/21/13
Page 2
MQFL-270-15S
Output:
15V
Current:
8A
MQFL-270-15S ELECTRICAL CHARACTERISTICS
Parameter
ABSOLUTE MAXIMUM RATINGS
Input Voltage
Non-Operating
Operating
Reverse Bias (Tcase = 125ºC)
Reverse Bias (Tcase = -55ºC)
Isolation Voltage (I/O to case, I to O)
Continuous
Transient (≤100 µs)
Operating Case Temperature
Storage Case Temperature
Lead Temperature (20 s)
Voltage at ENA1, ENA2
INPUT CHARACTERISTICS
Operating Input Voltage Range
“
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
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)
Vout Set Point Over Temperature
Output Voltage Line Regulation
Output Voltage Load Regulation
Total Output Voltage Range
Vout Ripple and Noise Peak to Peak
Operating Output Current Range
Operating Output Power Range
Output DC Current-Limit Inception
Short Circuit Output Current
Back-Drive Current Limit while Enabled
Back-Drive Current Limit while Disabled
Maximum Output Capacitance
DYNAMIC CHARACTERISTICS
Output Voltage Deviation Load Transient
For a Pos. Step Change in Load Current
For a Neg. Step Change in Load Current
Settling Time (either case)
Output Voltage Deviation Line Transient
For a Pos. Step Change in Line Voltage
For a Neg. Step Change in Line Voltage
Settling Time (either case)
Turn-On Transient
Output Voltage Rise Time
Output Voltage Overshoot
Turn-On Delay, Rising Vin
Turn-On Delay, Rising ENA1
Turn-On Delay, Rising ENA2
EFFICIENCY
Iout = 8 A (155 Vin)
Iout = 4 A (155 Vin)
Iout = 8 A (270 Vin)
Iout = 4 A (270 Vin)
Iout = 8 A (400 Vin)
Iout = 4 A (400 Vin)
Load Fault Power Dissipation
Short Circuit Power Dissipation
Product# MQFL-270-15S
Technical Specification
Min. Typ. Max. Units Notes & Conditions
Vin=270 V dc ±5%, Iout=8 A, CL=0 µF, free running (see Note 10)
unless otherwise specified
Group A
Subgroup
(see Note 13)
600
550
-0.8
-1.2
-500
-800
-55
-65
-1.2
155
155
142
133
5
490
450
20
270
270
150
140
11
520
475
50
28
1
6
140
14.85
14.78
-20
65
14.70
0
0
8.1
8.8
15.00
15.00
75
15.00
35
9.5
9.8
2.4
10
500
800
125
135
300
50
400
475
155
145
17
550
500
80
1
37
4
11
180
15.15
15.22
20
85
15.30
75
8
120
10.5
10.8
75
3,000
V
V
V
V
V
V
°C
°C
°C
V
V
V
V
V
V
V
V
V
A
mA
mA
mA
mA
V
V
mV
mV
V
mV
A
W
A
A
A
mA
µF
mV
mV
µs
mV
mV
µs
ms
%
ms
ms
ms
%
%
%
%
%
%
W
W
See Note 1
HB Grade Products, See Notes 2 & 16
Continuous
Transient, 1 s
See Note 3
1, 2, 3
4, 5, 6
1, 2, 3
1, 2, 3
1, 2, 3
1,
1,
1,
1,
1,
1,
1,
1,
2,
2,
2,
2,
2,
2,
2,
2,
3
3
3
3
3
3
3
3
See Note 3
Vin = 155 V; Iout = 8 A
Vin = 155 V, 270 V, 475 V
Vin = 155 V, 270 V, 475 V
Bandwidth = 100 kHz – 10 MHz; see Figure 14
Vout at sense leads
“
“ ; Vin = 155 V, 270 V, 400 V; Iout=8 A
“ ; Vout @ (Iout=0 A) - Vout @ (Iout=8 A)
“
Bandwidth = 10 MHz; CL=11µF
See Note 4
Vout ≤ 1.2 V; see Note 15
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
1, 2, 3
See Note 5
4, 5, 6
4, 5, 6
4, 5, 6
4, 5, 6
4, 5, 6
See Note 5
4, 5, 6
See Note 5
4, 5, 6
4, 5, 6
4, 5, 6
1,
1,
1,
1,
1,
1,
1,
1,
11/21/13
-1200
-600
600
200
1200
500
1200
2400
600
10
2
120
10
4
-400
-1200
500
6
0
75
5
2
89
89
88
86
85
82
19
24
See Note 6
Total Iout step = 4A‹-›8A, 0.8A‹-›4A; CL=11µF
“
See Note 7
Vin step = 155V‹-›400V; CL=11 µF; see Note 8
“
“
Iout = 4 A; See Note 7
Vout = 1.5V-›13.5V
ENA1, ENA2 = 5 V; see Notes 9 & 11
ENA2 = 5 V; see Note 11
ENA1 = 5 V; see Note 11
50
85
85
83
82
81
77
36
40
Iout at current limit inception point; See Note 4
Vout ≤ 1.2 V
Doc.# 005-0005056 Rev. D
2,
2,
2,
2,
2,
2,
2,
2,
3
3
3
3
3
3
3
3
Phone 1-888-567-9596
www.SynQor.com
Page 3
MQFL-270-15S
Output:
15V
Current:
8A
MQFL-270-15S ELECTRICAL CHARACTERISTICS (Continued)
Parameter
Min. Typ. Max. Units Notes & Conditions
Vin=270 V dc ±5%, Iout=8 A, CL=0 µF, free running (see Note 10)
unless otherwise specified
Technical Specification
Group A
Subgroup
(see Note 13)
ISOLATION CHARACTERISTICS
Isolation Voltage
Input RTN to Output RTN
Any Input Pin to Case
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
Synchronization Output
Pull Down Current
Duty Cycle
Enable Control (ENA1 and ENA2)
Off-State Voltage
Module Off Pulldown Current
On-State Voltage
Module On Pin Leakage Current
Pull-Up Voltage
RELIABILITY CHARACTERISTICS
Calculated MTBF (MIL-STD-217F2)
GB @ Tcase = 70ºC
AIF @ Tcase = 70ºC
Demonstrated MTBF
WEIGHT CHARACTERISTICS
Device Weight
Dielectric strength
500
500
500
100
100
44
500
500
2.0
-0.5
20
20
25
550
600
700
5.5
0.8
80
V
V
V
MΩ
MΩ
nF
kHz
kHz
V
V
%
mA
%
V
µA
V
µA
V
VSYNC OUT = 0.8 V
Output connected to SYNC IN of other MQFL unit
1
1
1
1
1
1
1, 2, 3
1, 2, 3
1, 2, 3
1, 2, 3
See Note 5
See Note 5
See Note 5
1, 2, 3
See Note 5
1, 2, 3
See Note 5
1, 2, 3
75
0.8
80
2
3.2
4.0
20
4.8
Current drain required to ensure module is off
Imax draw from pin allowed with module still on
See Figure A
2600
300
TBD
79
10
3
Hrs.
10
3
Hrs.
10
3
Hrs.
g
Electrical Characteristics Notes
1. Converter will undergo input over-voltage shutdown.
2. Derate output power to 50% of rated power at Tcase = 135ºC. 135ºC is above specified operating range.
3. High or low state of input voltage must persist for about 200µs to be acted on by the lockout or shutdown circuitry.
4. Current limit inception is defined as the point where the output voltage has dropped to 90% of its nominal value.
5. Parameter not tested but guaranteed to the limit specified.
6. Load current transition time ≥ 10 µs.
7. Settling time measured from start of transient to the point where the output voltage has returned to ±1% of its final value.
8. Line voltage transition time ≥ 250 µs.
9. Input voltage rise time ≥ 250 µs.
10. Operating the converter at a synchronization frequency above the free running frequency will slightly reduce the converter’s efficiency
and may also cause a slight reduction in the maximum output current/power available. For more information consult the factory.
11. After a disable or fault event, module is inhibited from restarting for 300 ms. See Shut Down section.
12. SHARE pin outputs a power failure warning pulse during a fault condition. See Current Share section.
13. Only the ES and HB grade products are tested at three temperatures. The C grade products are tested at one temperature.
Please refer to the Environmental Stress Screening Options table for details.
14. These derating curves apply for the ES- and HB- grade products. The C- grade product is specified to a maximum case temperature of 70ºC and a
maximum junction temperature rise of 20º C above TCASE.
15. Converter delivers current into a persisting short circuit for up to 1 second. See Current Limit in the Application Notes section.
16. The specified operating case temperature for ES grade products is -45ºC to 100ºC. The specified operating case temperature for C grade products
is 0ºC to 70ºC.
Product# MQFL-270-15S
Phone 1-888-567-9596
www.SynQor.com
Doc.# 005-0005056 Rev. D
11/21/13
Page 4
MQFL-270-15S
Output:
15V
Current:
8A
Technical Figures
100
95
90
100
95
90
Efficiency (%)
80
75
70
65
60
0
1
2
3
Efficiency (%)
155 Vin
270 Vin
400 Vin
85
85
80
75
70
65
60
-55°C
155 Vin
270 Vin
400 Vin
Load Current (A)
4
5
6
7
8
-35°C
-15°C
5°C
Case Temperature (ºC)
25°C
45°C
65°C
85°C
105°C
125°C
Figure 1:
Efficiency at nominal output voltage vs. load current for
minimum, nominal, and maximum input voltage at T
CASE
=25°C.
22
20
18
Figure 2:
Efficiency at nominal output voltage and 60% rated power vs.
case temperature for input voltage of 155V, 270V and 400V.
22
20
18
Power Dissipation (W)
14
12
10
8
6
4
2
0
0
1
2
3
4
5
6
7
155 Vin
270 Vin
400 Vin
Power Dissipation (W)
16
16
14
12
10
8
6
4
2
155 Vin
270 Vin
400 Vin
Load Current (A)
8
0
-55°C
-35°C
-15°C
5°C
Case Temperature (ºC)
25°C
45°C
65°C
85°C
105°C
125°C
Figure 3:
Power dissipation at nominal output voltage vs. load current
for minimum, nominal, and maximum input voltage at Tcase=25°C.
12
10
8
180
150
Figure 4:
Power dissipation at nominal output voltage and 60% rated
power vs. case temperature for input voltage of 155V, 270V and 400V.
16
14
12
Output Voltage (V)
120
90
60
Tjmax = 105ºC
Tjmax = 125ºC
Tjmax = 145ºC
Iout (A)
6
4
2
0
25
45
65
85
105
125
135 145
Pout (W)
10
8
6
4
30
0
2
270 Vin
0
0
2
4
Case Temperature (ºC)
Load Current (A)
6
8
10
12
Figure 5:
Output Current / Output Power derating curve as a
function of Tcase and the Maximum desired power MOSFET junction
temperature (see Note 14). Vin = 270V
Product# MQFL-270-15S
Phone 1-888-567-9596
Figure 6:
Output voltage vs. load current showing typical current limit
curves. See Current Limit section in the Application Notes.
Doc.# 005-0005056 Rev. D
11/21/13
Page 5
www.SynQor.com
京公网安备 11010802033920号
EEWORLD
