Ericsson Internal
E
EMAOLII
PRODUCT SPECIFICATION
3 (21)
Prepared (also subject responsible if other)
No.
2/1301-BMR 454 Uen
7
Technical Specification
BMR454 series Fully regulated InteCrmheckeeddiate Bus Converters
Approved
Date
Rev
Reference
EN/LZT 146 404 R7A March 2013
SEC/D (Julia You)
SECSUND
2011-07-15
F
© Ericsson AB
Input 36-75 V, Output up to 40 A / 240 W
3.3 V, 40 A / 132 W Electrical Specification
BMR 454 0002/003
TP1 = -40 to +90ºC, VI = 36 to 75 V, sense pins connected to output pins unless otherwise specified under Conditions.
Typical values given at: TP1 = +25°C, VI= 53 VI max IO, unless otherwise specified under Conditions.
Additional Cout = 0.1 mF, Configuration File: 190 10-CDA 102 1900/003 rev A
Characteristics
Conditions
min
36
typ
max
75
Unit
V
VI
Input voltage range
VIoff
VIon
CI
Turn-off input voltage
Turn-on input voltage
Internal input capacitance
Output power
Decreasing input voltage
Increasing input voltage
32
33
35
11
34
V
34
36
V
μF
W
PO
0
132
50% of max IO
93
max IO
91.2
93.2
91.2
12.8
2.0
η
Efficiency
%
50% of max IO, VI = 48 V
max IO, VI = 48 V
max IO
Pd
Pli
PRC
fs
Power Dissipation
Input idling power
Input standby power
Switching frequency
17.5
W
W
IO = 0 A, VI = 53 V
VI = 53 V (turned off with RC)
0-100 % of max IO see Note 1
127
180
mW
kHz
171
189
Output voltage initial setting and
accuracy
VOi
VO
TP1 = +25°C, VI = 53 V, IO = 40 A
3.26
3.3
3.34
V
Output adjust range
Output voltage tolerance band
Line regulation
See operating information
0-100% of max IO
3.0
6.7
3.38
20
V
V
3.22
max IO
5
6
mV
mV
Load regulation
VI = 53 V, 0-100 % of max IO
16
Load transient
voltage deviation
VI = 53 V, Load step 25-75-25% of
max IO, di/dt = 1 A/μs
see Note 2
Vtr
ttr
±0.2
214
8
V
Load transient recovery time
µs
ms
Ramp-up time
(from 10−90% of VOi)
tr
10-100% of max IO,
TP1 = 25ºC, VI = 53 V
see Note 3
Start-up time
(from VI connection to 90% of VOi)
ts
tf
140
ms
max IO
IO = 0 A
max IO
0.33
3.8
54
ms
s
VI shut-down fall time
(from VI off to 10% of VO)
RC start-up time
ms
tRC
max IO
2
ms
s
RC shut-down fall time
(from RC off to 10% of VO)
IO = 0 A
3.8
IO
Output current
0
40
49
8
A
Ilim
Isc
Current limit threshold
Short circuit current
VO = 3.0 V, TP1 < max Tref
41
45
7
A
TP1 = 25ºC, VO < 0.2 V, see Note 4
A
Cout
Recommended Capacitive Load TP1 = 25ºC, see Note 5
0.1
4
6
mF
See ripple & noise section,
VOac
Output ripple & noise
max IO, VOi
25
50
mVp-p
V
TP1 = +25°C, VI = 53 V, 10-100% of
OVP
Over voltage protection
4.6
max IO, see Note 6
Note 1: Frequency may be adjusted via PMBus, see Operating Information section.
Note 2: Cout = 4 mF used at load transient test.
Note 3: Start-up and Ramp-up time can be increased via PMBus, see Operation Information section.
Note 4: RMS current in hiccup mode.
Note 5: Low ESR-value.
Note 6: OVP-level can be adjusted via PMBus, see Operation Information section.