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TABLE OF CONTENTS
No.
1 (1)
Prepared (also subject responsible if other)
EAB/FC/P Jakub Brindell
Checked
0/1301-BMR 453
Date
EAB/FC/P Jakub Brindell
BMR 453
DC/DC Converters, Input 36-75V, Output 33A/400 W
Key Features
•
Industry standard Quarter-brick
57.9 x 36.8 x 11.6 mm (2.28 x 1.45 x 0.46 in.)
•
High efficiency, typ. 96 % at half load, 12 Vout
•
+/- 2% output voltage tolerance band
•
1500 Vdc input to output isolation
•
1.1
million hours MTBF
•
Optional baseplate
•
ISO 9001/14001 certified supplier
•
PMBus Revision 1.1 compliant
EJAKBRI
2009-02-02
Rev
Technical
Reference
Specification
EN/LZT 146
395 R1C
February
2009
© Ericsson AB
C
Power Management
•
•
•
•
•
•
•
•
Configurable soft start/stop
Precision delay and ramp-up
Voltage sequencing and margining
Voltage/current/temperature monitoring
Configurable output voltage
Power good
Synchronization
Voltage track
Safety Approvals
Design for Environment
SE-56511
Meets requirements in high-
temperature lead-free soldering
processes.
Contents
General Information
Safety Specification
Absolute Maximum Ratings
Functional Description
Product Program
9 V, 33 A / 300 W - Electrical Specification
12 V, 33 A / 400 W - Electrical Specification
EMC Specification
Operating Information
Thermal considerations
Connections
PMBus communications
Mechanical Information
Soldering Information
Delivery Information
Product Qualification Specification
............................................................. 2
............................................................. 3
............................................................. 4
............................................................. 5
Ordering No.
BMR 453............................................... 6
BMR 453............................................... 9
........................................................... 12
........................................................... 13
........................................................... 15
........................................................... 15
........................................................... 16
........................................................... 19
........................................................... 21
........................................................... 21
........................................................... 22
E
Approved
Ericsson Internal
PRODUCT SPECIFICATION
No.
Checked
2 (4)
Prepared (also subject responsible if other)
EAB/FC/P Jakub Brindell
1/1301- BMR 453 Uen
Technical Specification
Date
BMR 453
EAB/FC/P Jakub Brindell
DC/DC Converters, Input 36-75V, Output 33A/400 W
General Information
Ordering Information
EJAKBRI
2009-01-23
EN/LZT 146
395 R1C
February
2009
© Ericsson AB
Rev
Reference
2
D
Compatibility with RoHS requirements
The products are compatible with the relevant clauses and
requirements of the RoHS directive 2002/95/EC and have a
maximum concentration value of 0.1% by weight in
homogeneous materials for lead, mercury, hexavalent
chromium, PBB and PBDE and of 0.01% by weight in
homogeneous materials for cadmium.
Exemptions in the RoHS directive utilized in Ericsson
Power Modules products include:
-
Lead in high melting temperature type solder (used to
solder the die in semiconductor packages)
-
Lead in glass of electronics components and in
electronic ceramic parts (e.g. fill material in chip
resistors)
-
Lead as an alloying element in copper alloy containing
up to 4% lead by weight (used in connection pins made
of Brass)
Number
BMR453
n
1
Description
Default
0 = Standard pin length 5.33 mm
2 = Lead length 3.69 mm (cut)
3 = Lead length 4.57 mm (cut)
4 = Lead length 2.79 mm (cut)
5 = Lead length 2.79 mm stand off 6.7mm
0 = Open frame
1 = Baseplate
2 = Baseplate with GND-pin
00 = With digital interface
01 = Without digital interface
001 = 12V Default configuration variant
002 = 9V Default configuration variant
n
2
n
3
n
4
n
5
n
6
n
7
Quality Statement
The products are designed and manufactured in an
industrial environment where quality systems and methods
like ISO 9000, 6σ (sigma), and SPC are intensively in use
to boost the continuous improvements strategy. Infant
mortality or early failures in the products are screened out
and they are subjected to an ATE-based final test.
Conservative design rules, design reviews and product
qualifications, plus the high competence of an engaged
work force, contribute to the high quality of our products.
Warranty
Warranty period and conditions are defined in Ericsson
AB’s General Terms and Conditions of Sale. Ericsson AB
does not make any other warranties, expressed or implied
including any warranty of merchantability, effects of product
configurations made by customers or fitness for a particular
purpose.
As an example an open frame, 3.69 mm pin length with digital interface with
configuration variant 002 would be BMR4532000/002.
Reliability
The Mean Time Between Failure (MTBF) is calculated at
full output power and an operating ambient temperature
(T
A
) of +40°C, which is a typical condition in Information
and Communication Technology (ICT) equipment. Different
methods could be used to calculate the predicted MTBF
and failure rate which may give different results. Ericsson
Power Modules currently uses Telcordia SR332.
Predicted MTBF for the series is:
-
1.1 million hours according to Telcordia SR332, issue
1, Black box technique.
Telcordia SR332 is a commonly used standard method
intended for reliability calculations in ICT equipment. The
parts count procedure used in this method was originally
modelled on the methods from MIL-HDBK-217F, Reliability
Predictions of Electronic Equipment. It assumes that no
reliability data is available on the actual units and devices
for which the predictions are to be made, i.e. all predictions
are based on generic reliability parameters.
© Ericsson AB 2008
The information and specifications in this technical
specification is believed to be correct at the time of
publication. However, no liability is accepted for
inaccuracies, printing errors or for any consequences
thereof. Ericsson AB reserves the right to change the
contents of this technical specification at any time without
prior notice.
E
Approved
Ericsson Internal
PRODUCT SPECIFICATION
No.
Checked
3 (4)
Prepared (also subject responsible if other)
EAB/FC/P Jakub Brindell
1/1301- BMR 453 Uen
Technical Specification
Date
BMR 453
EAB/FC/P Jakub Brindell
Safety Specification
DC/DC Converters, Input 36-75V, Output 33A/400 W
EJAKBRI
2009-01-23
EN/LZT 146
395 R1C
February
2009
© Ericsson AB
Rev
Reference
3
D
General information
Ericsson Power Modules DC/DC converters and DC/DC
regulators are designed in accordance with safety
standards IEC/EN/UL60950,
Safety of Information
Technology Equipment.
IEC/EN/UL60950 contains requirements to prevent injury
or damage due to the following hazards:
•
•
•
•
•
•
Electrical shock
Energy hazards
Fire
Mechanical and heat hazards
Radiation hazards
Chemical hazards
Isolated DC/DC converters
It is recommended that a slow blow fuse with a rating twice
the maximum input current per selected product be used at
the input of each DC/DC converter. If an input filter is used
in the circuit the fuse should be placed in front of the input
filter.
In the rare event of a component problem in the input filter
or in the DC/DC converter that imposes a short circuit on
the input source, this fuse will provide the following
functions:
•
•
Isolate the faulty DC/DC converter from the input
power source so as not to affect the operation of
other parts of the system.
Protect the distribution wiring from excessive
current and power loss thus preventing hazardous
overheating.
On-board DC-DC converters and DC/DC regulators are
defined as component power supplies. As components
they cannot fully comply with the provisions of any Safety
requirements without “Conditions of Acceptability”.
Clearance between conductors and between conductive
parts of the component power supply and conductors on
the board in the final product must meet the applicable
Safety requirements. Certain conditions of acceptability
apply for component power supplies with limited stand-off
(see Mechanical Information for further information). It is
the responsibility of the installer to ensure that the final
product housing these components complies with the
requirements of all applicable Safety standards and
Directives for the final product.
Component power supplies for general use should comply
with the requirements in IEC60950, EN60950 and
UL60950
“Safety of information technology equipment”.
There are other more product related standards, e.g.
IEEE802.3af “Ethernet LAN/MAN Data terminal equipment
power”, and ETS300132-2 “Power supply interface at the
input to telecommunications equipment; part 2: DC”, but all
of these standards are based on IEC/EN/UL60950 with
regards to safety.
Ericsson Power Modules DC/DC converters and DC/DC
regulators are UL60950 recognized and certified in
accordance with EN60950.
The flammability rating for all construction parts of the
products meets requirements for V-0 class material
according to IEC 60695-11-10.
The products should be installed in the end-use equipment,
in accordance with the requirements of the ultimate
application. Normally the output of the DC/DC converter is
considered as SELV (Safety Extra Low Voltage) and the
input source must be isolated by minimum Double or
Reinforced Insulation from the primary circuit (AC mains) in
accordance with IEC/EN/UL60950.
The galvanic isolation is verified in an electric strength test.
The test voltage (V
iso
) between input and output is
1500 Vdc or 2250 Vdc for 60 seconds (refer to Absolute
maximum ratings).
Leakage current is less than 1 µA at nominal input voltage.
24 V DC systems
The input voltage to the DC/DC converter is SELV (Safety
Extra Low Voltage) and the output remains SELV under
normal and abnormal operating conditions.
48 and 60 V DC systems
If the input voltage to the DC/DC converter is 75 Vdc or
less, then the output remains SELV (Safety Extra Low
Voltage) under normal and abnormal operating conditions.
Single fault testing in the input power supply circuit should
be performed with the DC/DC converter connected to
demonstrate that the input voltage does not exceed
75 Vdc.
If the input power source circuit is a DC power system, the
source may be treated as a TNV2 circuit and testing has
demonstrated compliance with SELV limits and isolation
requirements equivalent to Basic Insulation in accordance
with IEC/EN/UL60950.
Non-isolated DC/DC regulators
The input voltage to the DC/DC regulator is SELV (Safety
Extra Low Voltage) and the output remains SELV under
normal and abnormal operating conditions.
E
EANDKUL
Approved
Ericsson Internal
PRODUCT SPECIFICATION
No.
Checked
Date
1 (9)
Prepared (also subject responsible if other)
2/1301-BMR 453
Technical Specification
Uen
2009-01-13
EN/LZT 146
395 R1C
February
2009
© Ericsson AB
Rev
Reference
4
BMR 453
EAB/FJB/GKF (Natalie Johansson)
DC/DC Converters, Input 36-75V, Output 33A/400 W
(MICJMAL)
B
Absolute Maximum Ratings
Characteristics
T
ref
T
S
V
I
V
iso
V
tr
V
RC
V Logic
Operating Temperature (see Thermal Consideration section)
Storage temperature
Input voltage
Isolation voltage (input to output test voltage), see note 1
Input voltage transient (Tp 100 ms)
Remote Control pin voltage
SALERT, CTRL, SYNC, SCL, SDA, SA(0,1)
-0.3
-0.3
min
-40
-55
-0.5
typ
max
+125
+125
+80
1500
100
18
3.6
Unit
°C
°C
V
Vdc
V
V
V
Stress in excess of Absolute Maximum Ratings may cause permanent damage. Absolute Maximum Ratings, sometimes referred to as no destruction limits, are
normally tested with one parameter at a time exceeding the limits of Output data or Electrical Characteristics. If exposed to stress above these limits, function and
performance may degrade in an unspecified manner.
Note 1: Isolation voltage (input/output to base-plate) max 750Vdc.
Fundamental Circuit Diagram
+IN
Driver
+OUT
-OUT
-IN
Auxillary
Supply
Driver
Control
RC
RC isolation
E
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Ericsson Internal
PRODUCT SPECIFICATION
No.
Checked
Date
2 (9)
Prepared (also subject responsible if other)
2/1301-BMR 453
Technical Specification
Uen
2009-01-13
EN/LZT 146
395 R1C
February
2009
© Ericsson AB
Rev
Reference
5
BMR 453
EAB/FJB/GKF (Natalie Johansson)
DC/DC Converters, Input 36-75V, Output 33A/400 W
(MICJMAL)
B
Functional Description
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 102 935/001 rev B
Characteristics
PMBus monitoring
VIN_READ, 0x88h
VOUT_READ, 0x8Bh
IOUT_READ, 0x8Ch
IOUT_READ, 0x8Ch
Accuracy vs V
i
Accuracy vs V
O
Accuracy vs I
O
Accuracy vs I
O
Factory default
Input Under
Voltage Lockout,
UVLO
Setpoint accuracy
Factory default
Hysteresis
Delay
(Output voltage)
Over/Under Voltage
Protection,
VOUT_OV_FAULT_LIMIT
OVP/UVP
fault response time
Setpoint accuracy
Over Current
Protection,
OCP
IOUT_OC_FAULT_LIMIT
fault response time
Over Temperature
Protection,
OTP
OTP_FAULT_LIMIT
OTP hysteresis
fault response time
Logic Input/Output Characteristics
Logic input low threshold (V
IL
)
Logic input high threshold (V
IH
)
Logic output low threshold (V
OL
)
CTRL_CS, SA0, SA1, PG_SYNC,
SCL, SDA,
CTRL_CS, PG_SYNC, SALERT,
SCL, SDA
I
OL
=
5 mA
CTRL_CS, PG_SYNC, SALERT,
SCL, SDA
I
OH
=
-5 mA
Data change from high to low
Data change from low to high
Data change from high to low
Data change from low to high
-
2
-
-
-
-
0.8
3.45
0.4
V
V
V
Factory default
Configurable via PMBus, Note 1
Factory default
Configurable via PMBus, Note 1
Io
Factory default
Configurable via PMBus, Note 1
VOUT_UV_FAULT_LIMIT
Factory default
Configurable via PMBus, Note 1
Factory default
Configurable via PMBus, Note 1
Configurable via PMBus of
threshold range, Note 1
V
I
= 53 V
V
I
= 53 V, 50-100% of max I
O
V
I
= 53 V, 10% of max I
O
-3
-1.0
-6
-20
-
-3
-
0
-
-
0
-
V
OUT
-
-6
-
0
-
-
-50
0
-
39
-
200
135
10
200
165
-
+0.4
-0.3
-1.0
-
33
-
1.8
-
200
0
-
15.6
-
200
3
1.0
6
20
-
3
-
-
-
-
16
-
16
-
6
-
100
-
-
135
%
%
%
%
V
%
V
V
µ
s
Conditions
min
typ
max
Unit
Fault Protection Characteristics
V
V
V
V
µ
s
%
A
µ
s
°C
µ
s
Logic output high threshold (V
OH
)
Setup time, SMBus
Hold time, SMBus
2.8
250
250
300
300
-
-
-
-
V
ns
ns
ns
ns
Note 1: See Operating Information section.
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