MQFL-28V-12S Datasheet, PDF (6/19 Pages) SynQor Worldwide Headquarters – HIGH RELIABILITY DC-DC CONVERTER

Technical Specification
MQFL-28V-12S
Output: 12 V
Current: 8 A
100
95
90
85
80
75
70
16 Vin
28 Vin
65
40 Vin
60
0
1
2
3
4
5
6
7
8
Load Current (A)
Figure 1: Efficiency at nominal output voltage vs. load current for
minimum, nominal, and maximum input voltage at Tcase=25°C.
100
95
90
85
80
75
70
16 Vin
28 Vin
65
40 Vin
60
-55ºC
25ºC
Case Temperature (ºC)
125ºC
Figure 2: Efficiency at nominal output voltage and 60% rated power vs.
case temperature for input voltage of 16 V, 28 V, and 40 V.
18
16
14
12
10
8
6
4
16 Vin
28 Vin
2
40 Vin
0
0
1
2
3
4
5
6
7
8
Load Current (A)
Figure 3: Power dissipation at nominal output voltage vs. load current
for minimum, nominal, and maximum input voltage at Tcase=25°C.
12
144
10
120
8
96
6
72
4
2
0
25
Tj_max
Tj_max
Tj_max
= 105ºC
= 125ºC
= 145ºC
45
65
85
105
Case Temperature (ºC)
48
24
0
125 135 145
Figure 5: Output Current / Output Power derating curve as a
function of Tcase and the Maximum desired power MOSFET junction
temperature at Vin = 28 V (see Note 14).
16
14
12
10
8
6
4
2
0
-55ºC
25ºC
Case Temperature (ºC)
16 Vin
28 Vin
40 Vin
125ºC
Figure 4: Power dissipation at nominal output voltage and 60%
rated power vs. case temperature for input voltage of 16 V, 28 V,
and 40 V.
14
12
10
8
6
4
2
28 Vin
0
0
2
4
6
8
10
12
Load Current (A)
Figure 6: Output voltage vs. load current showing typical current
limit curves.
Product # MQFL-28V-12S
Phone [phone]
www.synqor.com
Doc.# 005-2MQ12VS Rev. C 04/24/09
Page 6