BMR457 Datasheet, PDF (14/36 Pages) Ericsson – 2012-07-27 Zhou 2012-08-24 Fully regulated Advanced Bus Converters Input 36-75 V, Output up to 25 A / 300 W

E
Ericsson Internal
PRODUCT SPECIFICATION
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Prepared (also subject responsible if other)
No.
SECSUND
2/1301-BMR 457_TU_ee_cn_{hnical Specification 14}
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Checked
Date
Rev
Reference
S^BE^MC^R/D⁴(⁵J⁷uli^sa^eY^roⁱu^e)^{s Fully regulated Adv}E^aZⁿH^cI^eX^dZH^{Bus C}2^o0ⁿ12^v-^e0^r8^t-^e2^r4^{s 1}C^/28701-FGCL^{101 1835 revC August 2012}
Input 36-75 V, Output up to 25 A / 300 W
© Ericsson AB
Typical Characteristics
12 V, 25 A, 300 W
Output Current Derating – Open frame
[A]
25
20
15
10
5
0
0
3.0 m/s
2.0 m/s
1.5 m/s
1.0 m/s
0.5 m/s
Nat. Conv.
20
40
60
80
100 [°C]
Available load current vs. ambient air temperature and airflow at
V_I = 53 V. See Thermal Consideration section.
Output Current Derating – Base plate
[A]
25
20
15
10
5
0
0
3.0 m/s
2.0 m/s
1.5 m/s
1.0 m/s
0.5 m/s
Nat. Conv.
20
40
60
80
100 [°C]
Available load current vs. ambient air temperature and airflow at
V_I = 53 V. See Thermal Consideration section.
Output Current Derating – Base plate + Heat sink
[A]
25
3.0 m/s
20
2.0 m/s
15
1.5 m/s
1.0 m/s
10
0.5 m/s
5
Nat. Conv.
0
0
20
40
60
80
100 [°C]
Available load current vs. base plate temperature.
V_I = 53 V. See Thermal Consideration section. Tested with Plate Fin
Transverse heatsink, height 0.23 In, P0114 Thermal Pad.
BMR 457 0000/002
Thermal Resistance – Base plate
[°C/W]
6
5
4
3
2
1
0
0.0 0.5 1.0 1.5 2.0 2.5 3.0 [m/s]
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 Current Derating – Cold wall sealed box
[A]
30
25
20
Tamb
15
85°C
10
5
0
0
20
40
60
80 100 [°C]
Available load current vs. base plate temperature at 85ºC ambient.
V_I = 53 V. See Thermal Consideration section.