Ericsson Internal
E
ESKEVIN
PRODUCT SPECIFICATION
6 (20)
Prepared (also subject responsible if other)
No.
2/1301-BMR 655 Uen
9
Technical Specification
Approved
Checked
Date
Rev
EN/LZT 146 3R7e7feRre3nFce Jun 2008
PKB4000C PI
SEC/D (Julia You)
EYINGJI
2008-6-20
E
© Ericsson Power Modules AB
DC/DC Converters, Input 36-75 V, Output 60 A/144 W
1.5 V/60 A Typical Characteristics
PKB 4918HC PI
Efficiency
Power Dissipation
[%]
95
[W]
16
14
12
10
8
90
85
80
75
70
36 V
48 V
53 V
75 V
36 V
48 V
53 V
75 V
6
4
2
0
0
10
20
30
40
50
60 [A]
0
10
20
30
40
50
60 [A]
Dissipated power vs. load current and input voltage at
ref = +25°C
Efficiency vs. load current and input voltage at Tref = +25°C
T
Output Current Derating
Thermal Resistance
[A]
60
[°C/W]
10
3.0 m/s
2.0 m/s
1.5 m/s
1.0 m/s
Nat. Conv.
50
40
30
20
10
0
8
6
4
2
0
0
20
40
60
80
100 [°C]
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
VI = 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
Current Limit Characteristics
[V]
[V]
1.620
1.85
1.580
1.540
1.500
1.460
1.420
1.50
1.15
0.80
0.45
36 V
48 V
53 V
75 V
36 V
48 V
53 V
75 V
0
10
20
30
40
50
60 [A]
60
63
66
69
72
75 [A]
Output voltage vs. load current at Tref = +25°C
Output voltage vs. load current at IO > max IO , Tref = +25°C
When reaching 30% of nominal output voltage the converter will go
into hic-up mode.
ERICSSON [ ERICSSON ]
