E
EANDKUL
Approved
Ericsson Internal
PRODUCT SPECIFICATION
No.
Checked
Date
3 (9)
Prepared (also subject responsible if other)
2/1301-BMR 453
Technical Specification
Uen
2008-06-18
EN/LZT
146 395 R1B September 2008
Rev
Reference
6
BMR 453
EAB/FJB/GKF (Natalie Johansson)
DC/DC Converters, Input 36-75 V, Output 33 A/400 W
(MICJMAL)
A
© Ericsson AB
9.0V, 33A / 300W Electrical Specification
BMR 453 xxxx/002
T
ref
= -40 to +90ºC, V
I
= 36 to 75 V, sense pins connected to output pins unless otherwise specified under Conditions.
Typical values given at: T
ref
= +25°C, V
I
= 53 V, max I
O
, unless otherwise specified under Conditions.
Configuration File: 190 10-CDA 102 935/002 rev B
Characteristics
V
I
V
Ioff
V
Ion
C
I
P
O
Input voltage range
Turn-off input voltage
Turn-on input voltage
Internal input capacitance
Output power
50 % of max I
O
η
Efficiency
max I
O
50 % of max I
O
, V
I
= 48 V
max I
O
, V
I
= 48 V
P
d
P
li
P
RC
f
s
Power Dissipation
Input idling power
Input standby power
Switching frequency
max I
O
I
O
= 0 A, V
I
= 53 V
V
I
= 53 V (turned off with RC)
0-100 % of max I
O
0
96
95
96
95
16.0
2.1
190
140
24.7
W
W
mW
kHz
%
Decreasing input voltage
Increasing input voltage
Conditions
min
36
32
34
33
35
18
297
typ
max
75
34
36
Unit
V
V
V
µ
F
W
V
Oi
Output voltage initial setting and
T
ref
= +25°C, V
I
= 53 V, I
O
= 33 A
accuracy
Output adjust range
Output voltage tolerance band
See operating information
10-100% of max I
O
I
O
= 0 A
max I
O
V
I
= 53 V, 1-100% of max I
O
V
I
= 53 V, Load step 25-75-25 % of
max I
O
, di/dt = 1 A/
µ
s, C
O
= 3.3mF
see Note 1
10-100% of max I
O,
T
ref
= 25ºC, V
I
= 53 V
max I
O
I
O
= 0 A
max I
O
max I
O
I
O
= 0 A
8.90
8.1
8.82
8.82
9.0
9.10
13.5
9.18
9.18
V
V
V
V
mV
mV
V
µs
V
O
Idling voltage
Line regulation
Load regulation
Load transient
voltage deviation
Load transient recovery time
Ramp-up time
(from 10−90 % of V
Oi
)
20
7
±0.3
250
8
140
0.4
7
53
3.2
7
0
50
30
V
tr
t
tr
t
r
t
s
t
f
10
150
ms
ms
m
s
Start-up time
(from V
I
connection to 90% of V
Oi
)
Vin shutdown fall time
(from V
I
off to 10% of V
O
)
s
ms
ms
s
33
A
A
A
170
mVp-p
V
43
RC start-up time
t
RC
I
O
I
lim
I
sc
V
Oac
OVP
RC shutdown fall time
(from RC off to 10% of V
O
)
Output current
Current limit threshold
Short circuit current
Output ripple & noise
Over voltage protection
V
O
= 8.1V, T
ref
< max T
ref
T
ref
= 25ºC, V
O
< 0.2V, see Note 2
See ripple & noise section,
max I
O
, V
Oi
T
ref
= +25°C, V
I
= 53 V, 10-100% of
max I
O
34
38
19
80
15.6
Note 1: Output filter according to Ripple & Noise section.
Note 2: RMS current in hiccup mode.
ERICSSON [ ERICSSON ]
