Ericsson Internal
E
ETORHOL, EKAMAGN, EJANARV
PRODUCT SPEC
4 (9)
Prepared (also subject responsible if other)
No.
2/1301-BMR 451 0002 Uen
7
Technical Specification
Approved
Checked
Date
Rev
Reference
EN/LZT 146 401 R4A May 2015
BMR 451 Digital PoL Regulators
Input 4.5-14 V, Output up to 40 A / 132 W
SEC/D (Julia You)
ETORHOL
2010-03-02
E
© Ericsson AB
1.0 V, 40 A/40 W Typical Characteristics
Efficiency
BMR 451 0002/020
Power Dissipation
[%]
95
[W]
10
8
6
4
2
0
90
85
4.5 V
5 V
4.5 V
80
75
70
5 V
12 V
14 V
12 V
14 V
0
8
16
24
32
40 [A]
0
8
16
24
32
40 [A]
Dissipated power vs. load current and input voltage at TP1 = +25°C.
Efficiency vs. load current and input voltage at TP1 = +25°C.
Output Current Derating
[A]
40
[A]
40
3.0 m/s
2.0 m/s
1.5 m/s
1.0 m/s
0.5 m/s
Nat. Conv.
3.0 m/s
2.0 m/s
1.5 m/s
1.0 m/s
0.5 m/s
30
20
10
0
30
20
10
0
Nat. Conv.
[°C]
[°C]
100
0
20
40
60
80
100
0
20
40
60
80
Available load current vs. ambient air temperature and airflow at
VI = 5 V. See Thermal Consideration section.
Available load current vs. ambient air temperature and airflow at
VI = 12 V. See Thermal Consideration section.
Output Characteristics
Current Limit Characteristics
[V]
[V]
1.2
1,02
1.0
0.8
0.6
0.4
0.2
0.0
1,01
1,00
0,99
0,98
4.5 V
5 V
4.5 V
5 V
12 V
14 V
12 V
14 V
0
8
16
24
32
40 [A]
30
35
40
45
50 [A]
Output voltage vs. load current at TP1 = +25°C.
Output voltage vs. load current at TP1 = +25°C.
ERICSSON [ ERICSSON ]
