Ericsson Internal
PTABLE RODUCTOF CONTE SPECIFNICATS TION 11 ((1)4)
Prepared (also subject responsible if other) No.
Prepared (also subject responsible if other) No.
EZIWSON Kevin Zhou 1/1001 30152 - E-BMRN/LZT 451 146 4Uen 01 Uen
Technical Specication
ApprApprovoveed d CheChecked cked DatDate e RevRev RefReferereencncee
EN/LZT 146 401 R5A October 2017
BMR 45 1 Digital PoL Regulators
Kevin Zhou 2017-10-12 H
SEC/D (Julia You) 2011-08-11 E D
Flex
Input 4.5 - 14 V, Output up to 40 A / 132 W
Key Features
Small package
30.85 x 20 x 8.2 mm (1.215 x 0.787 x 0.323 in.)
40 A output current
4.5 V 14 V input voltage range
0.6 V 3.6 V output voltage range (by PMBus)
0.7 V 3.3 V output voltage range (by external resistor)
High efficiency, typ. 96,4% at half load, 5 Vin, 3.3 Vout
6.9 million hours MTBF
Through hole and surface mount versions
PMBus read and write compliant
General Characteristics
Voltage/current/temperature monitoring
Precision delay and ramp-up
Voltage sequencing
Switching frequency synchronization
Configurable control loop
Non-linear transient response
Wide output voltage adjust function
Safety Approvals Design for Environment
Start up into a pre-biased output
Output short-circuit protection
Over temperature protection
On/Off remote control
Output voltage sense Meets requirements in high-
temperature lead-free soldering
ISO 9001/14001 certified supplier
processes.
Contents
Ordering Information .............................................................2
General Information .............................................................2
Safety Specification .............................................................3
Absolute Maximum Ratings ............................................................. 4
Functional Specification .............................................................5
Electrical Specification
1.0V, 40A / 40W BMR 451 0002/020............................... 6
3.3V, 40A / 132W BMR 451 0002/020............................... 9
EMC Specification ...........................................................12
Operating Information ...........................................................12
Thermal Consideration ...........................................................16
Connections ...........................................................17
Typical Application Circuits ...........................................................17
PMbus Interface & Commands ...........................................................18
Mechanical Information ...........................................................21
Soldering Information ...........................................................24
Delivery Information ...........................................................25
Product Qualification Specification ...........................................................28
2
Technical Specication
EN/LZT 146 401 R5A October 2017
BMR 45 1 Digital PoL Regulators
Flex
Input 4.5 - 14 V, Output up to 40 A / 132 W
Compatibility with RoHS requirements
Ordering Information
The products are compatible with the relevant clauses and
Product program Output
requirements of the RoHS directive 2002/95/EC and have a
BMR451 0.6 - 3.6 V / 40 A, 132 W
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
Product number and Packaging
homogeneous materials for cadmium.
BMR 451 n n n n /n n n n
1 2 3 4 5 6 7 8
Options n n n n / n n n n
1 2 3 4 5 6 7 8
Exemptions in the RoHS directive utilized in Flex products
Mounting /
include:
Mechanical / - Lead in high melting temperature type solder (used to
solder the die in semiconductor packages)
Digital interface
/
- Lead in glass of electronics components and in
Configuration file
/
electronic ceramic parts (e.g. fill material in chip
Packaging /
resistors)
- Lead as an alloying element in copper alloy containing
Optional designation Description
up to 4% lead by weight (used in connection pins made
of Brass)
n 0 = Through hole mounted version (TH)
1
1 = Surface mount version (SMD)
Quality Statement
n 0 = lead length 3.56mm *
2 The products are designed and manufactured in an
4 = lead length 3mm and pin in paste
industrial environment where quality systems and methods
option *
like ISO 9000, 6 (sigma), and SPC are intensively in use
to boost the continuous improvements strategy. Infant
n n 02 = PMBus and analog voltage adjust
3 4
mortality or early failures in the products are screened out
and they are subjected to an ATE-based final test.
n n n 020 = Standard configuration
5 6 7
Conservative design rules, design reviews and product
xxx = Application Specific Configuration
qualifications, plus the high competence of an engaged
n B = Antistatic injection molded tray of 30
8 work force, contribute to the high quality of our products.
products (5 full trays/box = 150 products)
C = Antistatic tape & reel of 130 products
Warranty
Example: Product number BMR4511002/020 equals a surface mount, open
frame, PMBus and analog voltage adjust, standard configuration variant.
Warranty period and conditions are defined in Flexs
General Terms and Conditions of Sale. Flex does not make
For application specific configurations contact your local Flex sales
any other warranties, expressed or implied including any
representative.
warranty of merchantability, effects of product
*Note: only applicable for through hole mounted version.
configurations made by customers or fitness for a particular
purpose.
General Information
Reliability
Flex 2017
The failure rate ( ) and mean time between failures The information and specifications in this technical
specification is believed to be correct at the time of
(MTBF= 1/ ) is calculated at max output power and an
publication. However, no liability is accepted for
operating ambient temperature (T ) of +40C. Flex uses
A
inaccuracies, printing errors or for any consequences
Telcordia SR-332 Issue 2 Method 1 to calculate the mean
thereof. Flex reserves the right to change the contents of
steady-state failure rate and standard deviation ( ).
this technical specification at any time without prior notice.
Telcordia SR-332 Issue 2 also provides techniques to
estimate the upper confidence levels of failure rates based
on the mean and standard deviation.
Mean steady-state failure rate, Std. deviation,
146 nFailures/h 38.3 nFailures/h
MTBF (mean value) for the BMR451 series = 6.9 Mh.
MTBF at 90% confidence level = 5.1 Mh