E
MICMALE
Approved
Ericsson Internal
PRODUCT SPECIFICATION
No.
3 (10)
Prepared (also subject responsible if other)
2/1301-BMR 628 Uen
Checked
Date
6
Reference
PKD 4000E
SI
series
MPM/BK/P (Natalie Johansson)
DC/DC converters, Input 36-75 V, Output up to
20
A/50 W
(EANDKUL)
2007-04-24
EN/LZT 146
375
R2B
July
2008
Rev
A
© Ericsson Power Modules AB
1.2 V/20 A Typical Characteristics
Efficiency
[%]
90
85
80
75
70
65
0
5
10
15
20 [A]
36 V
48 V
53 V
75 V
0
0
5
10
15
2
1
PKD 4218LE SI
Power Dissipation
[W]
5
4
3
36 V
48 V
53 V
75 V
20 [A]
Efficiency vs. load current and input voltage at T
ref
= +25°C
Dissipated power vs. load current and input voltage at
T
ref
= +25°C
Output Current Derating
[A]
20
15
10
5
0
0
20
40
60
80
100 [°C]
Thermal Resistance
[°C/W]
3.0 m/s
2.5 m/s
2.0 m/s
1.5 m/s
10
8
6
4
1.0 m/s
Nat. Conv.
2
0
0,0
0,5
1,0
1,5
2,0
2,5
3,0[m/s]
Available load current vs. ambient air temperature and airflow at
V
I
= 53 V. See Thermal Consideration section.
Thermal resistance vs. airspeed measured at the converter.
Tested in wind tunnel with airflow and test conditions as per
the Thermal consideration section.
Output Characteristics
[V]
1.30
1.25
36 V
1.20
1.15
1.10
0
5
10
15
20 [A]
48 V
53 V
75 V
Current Limit Characteristics
[V]
1.50
1.20
0.90
0.60
0.30
0.00
30
32
34
36
38
40 [A]
36 V
48 V
53 V
75 V
O
utput voltage vs. load current at T
ref
= +25°C
O
utput voltage vs. load current at I
O
> max I
O
, T
ref
= +25°C
ERICSSON [ ERICSSON ]
