E
EZYPING
Approved
Ericsson Internal
PRODUCT SPECIFICATION
No.
Checked
Date
3 (5)
Prepared (also subject responsible if other)
2/1301-BMR 636
Technical Specification
01/74 Uen
EN/LZT 146
394 R5C
August
2012
Rev
Reference
9
PKB
4000
Wu)
SEC/D (Betty
series
DC/DC converters,
Input
36-75
V, Output
30
A/90 W
ESECZHW
2009-2-9
B
© Ericsson AB
1.2V/30 A Typical Characteristics
Efficiency
[%]
95
90
85
80
75
70
0
5
10
15
20
25
30 [A]
36 V
48 V
53 V
75 V
PKB 4318 PIOBNB
Power Dissipation
[W]
10
8
6
4
2
0
0
5
10
15
20
25
30 [A]
36 V
48 V
53 V
75 V
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]
35
30
25
20
15
10
5
0
0
20
40
60
80
100 [°C]
2.0 m/s
3.0 m/s
2.5 m/s
Thermal Resistance
[°C/W]
10
8
6
1.5 m/s
4
1.0 m/s
2
Nat.
Conv.
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. V
I
= 53 V.
Output Characteristics
Current Limit Characteristics
[V]
[V] 1.40
1.30
1.20
1.10
75V
1.00
0
5
10
15
20
25
30 [A]
1.60
1.20
36 V
0.80
0.40
0.00
15
20
25
30
35
40
45
50 [A]
48 V
53 V
75 V
36V
48V
53V
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 ]
