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MQFL-28V-12S Datasheet, PDF (3/19 Pages) SynQor Worldwide Headquarters – HIGH RELIABILITY DC-DC CONVERTER
Technical Specification
MQFL-28V-12S
Output: 12 V
Current: 8 A
MQFL-28V-12S ELECTRICAL CHARACTERISTICS
Parameter
Min. Typ. Max. Units Notes & Conditions
Vin=28 V dc ±5%, Iout=8 A, CL=0 µF, free running (see Note 10)
boost-converter non-operational unless otherwise specified
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)
Output Voltage Set Point Over Temperature
Output Voltage Line Regulation
Output Voltage Load Regulation
Total Output Voltage Range
Output Voltage 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 (16 Vin)
Iout = 4 A (16 Vin)
Iout = 8 A (28 Vin)
Iout = 4 A (28 Vin)
Iout = 8 A (40 Vin)
Iout = 4 A (40 Vin)
Load Fault Power Dissipation
Short Circuit Power Dissipation
60
60
-0.8
-1.2
-500
500
-800
800
-55
135
-65
135
300
-1.2
50
16
28
40
5.5
28
50
14.75 15.50 16.00
13.80 14.40 15.00
0.50 1.10 1.80
54.0 56.8 60.0
50.0 51.4 54.0
2.0 5.3 8.0
7.5
110 160
2
5
25
50
80 120
11.88
11.82
-20
50
11.76
0
0
8.5
8.8
12.00
12.00
0
60
12.00
15
9.5
10.4
2.4
10
12.12
12.18
20
70
12.24
45
8
100
10.5
12.0
50
3,000
-750 -375
375 750
50 200
-500
500
-500
500
250 500
6
10
0
2
5.5 8.0
3.0 6.0
1.5 3.0
86
90
88
91
86
90
87
90
85
89
85
89
14
24
16
24
V
V See Note 1
V
V
V
V
°C See Note 2
°C
°C
V
V Continuous
V Transient, 1 s; see Under-Voltage Transient Profile
See Note 3
V
V
V
See Note 3
V
V
V
A Vin = 16 V; Iout = 8 A
mA
mA Vin = 16 V, 28 V, 50 V
mA Vin = 16 V, 28 V, 50 V
mA Bandwidth = 100 kHz – 10 MHz; see Figure 14
V Vout at sense leads
V
"
mV
" ; Vin = 16V, 28V, 40V; Iout=8A
mV
" ; Vout @ (Iout=0 A) - Vout @ (Iout=8 A)
V
"
mV Bandwidth = 10 MHz; CL=11µF
A
W
A See Note 4
A Vout ≤ 1.2 V
A
mA
µF
See Note 6
mV Total Iout step = 4A‹-›8A, 0.8A‹-›4A; CL=11µF
mV
"
µs See Note 7
Vin step = 16V‹-›50V; CL=11 µF; see Note 8
mV
"
mV
"
µs See Note 7
ms Vout = 1.2V-›10.8V
%
ms ENA1, ENA2 = 5 V; see Notes 9 & 12
ms ENA2 = 5 V; see Note 12
ms ENA1 = 5 V; see Note 12
%
%
%
%
%
%
W Iout at current limit inception point; See Note 4
W Vout ≤ 1.2 V
Product # MQFL-28V-12S
Phone 1-888-567-9596
www.synqor.com
Doc.# 005-2MQ12VS Rev. C 04/24/09
Group A
Subgroup
1, 2, 3
4, 5, 6
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
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, 2, 3
1, 2, 3
1, 2, 3
1, 2, 3
1, 2, 3
1, 2, 3
1, 2, 3
1, 2, 3
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