INTERNAL USE ONLY
PRODUCT SPECIFICATION
Prepared (Subject resp)
jidgjian Grace Jiang
Approved (Document resp)
1 (4)
No.
1/1301-BMR474
Technical Specification
Checked
BMR4742001 series PoL Regulators
Diamond
Input 6-15 V, Output up to 80 A / 198 W
Date
2021/3/24
Rev
1/28701-BMR474 Rev. A
PA1
May
April2021
2021
© Flex
Key Features
• Small Package
33 x 8.6 x 19 mm (1.299 x 0.339 x 0.748 in)
• 0.6 V- 3.3 V output voltage range
• Maximum output current 80 A
• High efficiency, typ. 95.1% at 12Vin, 3.3 Vout full load
• Fast load transient response
• Configuration and monitoring via PMBus
• Synchronization and phase spreading
• Meets safety requirements according to IEC/EN/UL
62368-1
• MTBF 23.19 Mh
General Characteristics
•
•
•
•
•
•
•
•
•
•
Configuration support via Flex Power Designer
Monotonic soft start up
Input under voltage & over voltage protection
Output over current & over voltage protection
Differential remote sense
Remote control & Power Good
Output voltage setting via pin-strap or PMBus
Over temperature protection
Highly automated manufacturing ensures quality
ISO 9001/14001 certified supplier
Safety Approvals
Design for Environment
Meets requirements in hightemperature lead-free soldering
processes.
Contents
Ordering Information
General Information
Safety Specification
Internal Circuit Diagram
Typical Application Circuit
Absolute Maximum Ratings
............................................................. 2
............................................................. 2
............................................................. 3
............................................................. 4
............................................................. 5
............................................................. 6
Electrical Specification
0.6-3.3V, 80 A/198W
BMR4742001 ....................................... 9
Operating Information
Thermal Consideration
Pin Descriptions
Mechanical Information
Soldering Information
Delivery Information
Product Qualification Specification
Appendix – PMBus Commands
........................................................... 20
........................................................... 27
........................................................... 30
........................................................... 31
........................................................... 33
........................................................... 33
........................................................... 34
........................................................... 35
INTERNAL USE ONLY
PRODUCT SPECIFICATION
Prepared (Subject resp)
2 (4)
No.
jidgjian Grace Jiang
1/1301-BMR474
Technical Specification
Approved (Document resp)
Checked
Date
BMR4742001 series PoL Regulators
Diamond
Input 6-15 V, Output up to 80 A / 198 W
Ordering Information
2021/3/24
1/28701-BMR474 Rev. A
PA1
2
May
April2021
2021
© Flex
Compatibility with RoHS requirements
Product program
Output
BMR4742001/001
0.6 – 3.3 V, 80A, 198W
Product number and Packaging
BMR474n1n2n3n4/n5n6n7n8
Options
n1 n2 n3
n4
/ n5
Mechanical
o
The products are compatible with the relevant clauses and
requirements of the RoHS directive 2011/65/EU and
2015/863 and have a maximum concentration value of 0.1%
by weight in homogeneous materials for lead, mercury,
hexavalent chromium, PBB, PBDE, DEHP, BBP, DBP, DIBP
and of 0.01% by weight in homogeneous materials for
cadmium.
n6
n7
o
o
n8
o
Lead length
Hardware
Variants
Configuration file
Rev
o
o
o
o
Packaging
Options
Description
n1
2
3
Single in line (SIP), open frame
Single in line (SIP), heat sink
n2
0
4.57 mm pin
n3n4
01
Standard variant
n5n6n7
001
Standard configuration
(positive Remote Control logic)
n8
B
Tray
(1 full package contains 100 pcs
products.)
Exemptions in the RoHS directive utilized in Flex Power
products are found in the Statement of Compliance
document.
Flex Power fulfills and will continuously fulfill all its obligations
under regulation (EC) No 1907/2006 concerning the
registration, evaluation, authorization and restriction of
chemicals (REACH) as they enter into force and is through
product materials declarations preparing for the obligations to
communicate information on substances in the products.
Quality Statement
The products are designed and manufactured in an industrial
environment where quality systems and methods like ISO
9000, Six 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 the products.
Warranty
Example: Product number BMR4742001/001B equals an open frame, PMBus
and pin strap, positive RC logic, standard configuration variant with tray
packaging.
Warranty period and conditions are defined in Flex Power
General Terms and Conditions of Sale.
Limitation of Liability
General Information
Reliability
The failure rate (λ) and mean time between failures (MTBF=
1/λ) is calculated at max output power and an operating
ambient temperature (TA) of +40°C. Flex uses Telcordia SR332 Issue 4 Method 1 to calculate the mean steady-state
failure rate and standard deviation (σ).
Telcordia SR-332 Issue 4 also provides techniques to
estimate the upper confidence levels of failure rates based on
the mean and standard deviation.
Mean steady-state failure rate, λ
Std. deviation, σ
43 nFailures/h
6.1 nFailures/h
MTBF (mean value) for the BMR474 series= 23.19 Mh.
MTBF at 90% confidence level = 19.65 Mh
Flex does not make any other warranties, expressed or
implied including any warranty of merchantability or fitness for
a particular purpose (including, but not limited to, use in life
support applications, where malfunctions of product can
cause injury to a person’s health or life).
© Flex 2021
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. Flex reserves the right to change the
contents of this technical specification at any time without
prior notice.
INTERNAL USE ONLY
PRODUCT SPECIFICATION
Prepared (Subject resp)
No.
jidgjian Grace Jiang
Approved (Document resp)
1/1301-BMR474
Technical Specification
Checked
BMR4742001 series PoL Regulators
Diamond
Input 6-15 V, Output up to 80 A / 198 W
Safety Specification
General information
Flex Power DC/DC converters and DC/DC regulators are
designed in accordance with the safety standards
IEC 62368-1, EN 62368-1 and UL 62368-1 Audio/video,
information and communication technology equipment Part 1: Safety requirements
IEC/EN/UL 62368-1 contains requirements to prevent injury
or damage due to the following hazards:
•
•
•
•
•
•
Electrical shock
Electrically-caused fire
Injury caused by hazardous substances
Mechanically-caused injury
Skin burn
Radiation-caused injury
On-board DC/DC converters, Power interface modules 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
regulations for the final product.
Component power supplies for general use shall comply
with the requirements in IEC/EN/UL 62368-1. Product
related standards, e.g. IEEE 802.3af Power over Ethernet,
and ETS-300132-2 Power interface at the input to telecom
equipment, operated by direct current (dc) are based on
IEC/EN/UL 60950-1 with regards to safety.
Flex Power DC/DC converters, Power interface modules
and DC/DC regulators are UL 62368-1 recognized and
certified in accordance with EN 62368-1. The flammability
rating for all construction parts of the products meet
requirements for V-0 class material according to
IEC 60695-11-10, Fire hazard testing, test flames – 50 W
horizontal and vertical flame test methods.
Date
2021/3/24
Rev
1/28701-BMR474 Rev. A
PA1
3 (4)
3
May
April2021
2021
© Flex
Non - isolated DC/DC regulators
The DC/DC regulator output is ES1 energy source if the
input source meets the requirements for ES1 according to
IEC/EN/UL 62368-1.
Ericsson Internal
PRODUCT SPECIFICATION
Prepared (also subject responsible if other)
No.
jidrguaa Rainbo Gu
Approved
Checked
BMR4742001
jiddiyan Diamondseries
Yang PoL Regulatorsjiddiyan
Input 6-15 V, Output up to 80 A / 198 W
Internal Circuit Diagram
1 (15)
2/1301-BMR
474 UenSpecification
Technical
Date
5/11/2021
Rev
Reference
1/28701-BMR474 Rev. A
PA3
© Flex
4
May 2021
Ericsson Internal
PRODUCT SPECIFICATION
Prepared (also subject responsible if other)
No.
jidrguaa Rainbo Gu
Approved
Checked
BMR4742001
jiddiyan Diamondseries
Yang PoL Regulatorsjiddiyan
Input 6-15 V, Output up to 80 A / 198 W
Typical Application Circuit
Standalone operation with PMBus communication.
3 (15)
2/1301-BMR
474 UenSpecification
Technical
Date
5/11/2021
Rev
Reference
1/28701-BMR474 Rev. A
PA3
© Flex
5
May 2021
Ericsson Internal
PRODUCT SPECIFICATION
Prepared (also subject responsible if other)
4 (15)
No.
jidrguaa Rainbo Gu
Approved
Checked
BMR4742001
jiddiyan Diamondseries
Yang PoL Regulatorsjiddiyan
Input 6-15 V, Output up to 80 A / 198 W
2/1301-BMR
474 UenSpecification
Technical
Date
Rev
6
Reference
1/28701-BMR474 Rev. A
5/11/2021
May 2021
PA3
© Flex
Absolute Maximum Ratings
Characteristics
min
TP1
Operating temperature
TS
Storage temperature (Ambient)
VI
Input voltage (See Operating Information Section for input and output voltage relations)
Signal I/O voltage
Ground voltage
differential
Analog pin voltage
typ
max
Unit
-40
125
°C
-40
125
°C
-0.3
16
V
CTRL, SA, SALERT, SCL, SDA, VSET, SYNC, PG
-0.3
3.6
V
-S, AGND, GND
-0.3
0.3
V
VO, +S
-0.3
3.7
V
VREF
-0.3
1.65
V
Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only; functional operation of the
device at these or any other conditions above those indicated in the Electrical Specification section of this specification is not implied. Exposure to absolute maximum
rating conditions for extended periods may affect device reliability. See technical paper TP023 for details on how data retention time of the Non-Volatile Memory
(NVM) of the product is affected by high temperature.
Configuration File
This product is designed with a digital control circuit. The control circuit uses a configuration file which determines the functionality and
performance of the product. The Electrical Specification table shows parameter values of functionality and performance with the Standard
configuration, unless otherwise specified. The Standard configuration is designed to fit most application needs. Changes in Standard configuration
might be required to optimize performance in specific application.
Common Electrical Specification
This section includes parameter specifications common to all product versions within the product series. Typically these are parameters defined
by the digital controller of the products. In the table below PMBus commands for configurable parameters are written in capital letters.
TP1 = -40 to +85 °C, VI = 6 to 15 V, unless otherwise specified under Conditions.
Typical values given at: TP1 = +25 °C, VI = 12 V, max IO, unless otherwise specified under Conditions.
VO defined by pin-strap. Typical values for PMBus configurable parameters are given for standard (default) configuration.
Characteristics
Conditions
Switching Frequency (default value)
fSW =
1/TSW
TINIT
TONdel_tot
TONdel
TOFFdel
TONrise /
TOFFfall
Switching Frequency Range, Note 1
Switching Frequency Set-point Accuracy
External Sync input Pulse Width
Sync output duty cycle
SYNC allowable frequency difference
Initialization Time
Output voltage
Total On Delay Time
Output voltage
On Delay Time
Output voltage
Off Delay Time
Output voltage
On/Off
Ramp Time
(0-100%-0 of VO)
0.6V≤ Vo ≤1.8V
1.8V < Vo ≤3.3V
PMBus configurable
FREQUENCY_SWITCH
External sync
From VI > ~2.7 V to ready to be enabled
Enable by input voltage
Enable by CTRL pin
Turn on delay duration
Range PMBus configurable
TON_DELAY
Accuracy (actual delay vs set value)
Turn off delay duration, Note 2
Range PMBus configurable
TOFF_DELAY
Accuracy (actual delay vs set value)
Turn on ramp duration
Turn off ramp duration
Ramp duration range
PMBus configurable
TON_RISE/TOFF_FALL
min
typ
max
500
800
Unit
kHz
450
850
kHz
-10
100
40
-50
10
%
ns
%
kHz
50
60
50
20
TINIT + TONdel
TONdel
0
0
ms
ms
127.5
-10/+10
0
0
%
ms
127.5
-10/+10
5
Disabled in standard configuration. Turn off
immediately upon expiration of Turn off delay.
0
ms
31.75
ms
%
ms
ms
Ericsson Internal
PRODUCT SPECIFICATION
Prepared (also subject responsible if other)
jidrguaa Rainbo Gu
Approved
Checked
BMR4742001
jiddiyan Diamondseries
Yang PoL Regulatorsjiddiyan
Input 6-15 V, Output up to 80 A / 198 W
Characteristics
Power Good, PG
IUVP threshold
Input Under Voltage
Protection,
IUVP
Input Over Voltage
Protection,
IOVP
2/1301-BMR
474 UenSpecification
Technical
Date
IUVP threshold range
IUVP hysteresis
Set point accuracy
IUVP response delay
Fault response
IOVP threshold
IOVP threshold range
Set point accuracy
IOVP response delay
Fault response
Rev
Output Voltage Fixed
Over Voltage
Protection
© Flex
min
Over Current
Protection,
OCP
0.6V≤ Vo ≤2.5V
2.5< Vo ≤3.3V
PMBus configurable
VIN_UV_FAULT_LIMIT
5
6.5
V
4.0
VIN_UV_FAULT_RESPONSE
PMBus configurable
VIN_OV_FAULT_LIMIT
VIN_OV_FAULT_RESPONSE
250
V
mV
μs
0
Shutdown, automatic restart, 50 ms. Note 3
16
4
PMBus configurable
V
2
0
Shutdown, automatic restart, 50 ms. Note 3
%
μs
0.6
Resolution
V
3.7
0.1
-50
50
Vo-0.448
Vo-0.032
Vo+0.032
Set value for total output
PMBus configurable
IOUT _OC_FAULT_LIMIT
Vo+0.448
OT_FAULT_RESPONSE
V
μs
Shutdown, automatic restart, 50 ms. Note 3
105
1
A
1023
0
Latched
140
IOUT_OC_FAULT_RESPONSE
PMBus configurable
OT_FAULT_LIMIT
V
V
0
OCP threshold
mV
V
Vo+0.192
PMBus configurable
VOUT_OV_FAULT_LIMIT
V
V
Vo-0.192
PMBus configurable
VOUT_UV_FAULT_LIMIT
V
18
3.6
Fault response
Over Temperature
Protection,
OTP threshold range
OTP
Position P2,P3, Note 4
Fault response
V
-2
VOUT_UV_FAULT_RESPONSE
VOUT_OV_FAULT_RESPONSE
Protection delay
Fault response
OTP threshold
11.25
0.75
-250
UVP/OVP response time
OCP threshold range
Unit
% VO
% VO
OVP threshold
OVP threshold range
max
90
85
UVP threshold
UVP threshold range
typ
Rising
Falling
Accuracy
Output Voltage
Tracking
Over/Under Voltage
Protection,
OVP/UVP
May 2021
PA3
Fixed OVP threshold
Fixed OVP threshold
range
Fixed OVP threshold
resolution
7
Reference
1/28701-BMR474 Rev. A
5/11/2021
Conditions
PG threshold
5 (15)
No.
90
ms
°C
160
Latched
A
°C
Ericsson Internal
PRODUCT SPECIFICATION
Prepared (also subject responsible if other)
jidrguaa Rainbo Gu
Approved
Checked
BMR4742001
jiddiyan Diamondseries
Yang PoL Regulatorsjiddiyan
Input 6-15 V, Output up to 80 A / 198 W
Characteristics
Monitoring Accuracy
READ_TEMPERATURE_1
VOL
Logic output low signal level
VOH
Logic output high signal level
VIL
VIH
Logic input low
Logic input high
II_LEAK
Logic leakage current
CI_PIN
Logic pin input capacitance
RI_PU
Logic pin internal pull-up resistance
fSMB
TBUF
tset
thold
Tlow
Thigh
2/1301-BMR
474 UenSpecification
Technical
Date
Supported SMBus Operating
frequency
SMBus Bus free time
SMBus SDA setup time from SCL
SMBus SDA hold time from SCL
SMBus START/STOP condition
setup/hold time from SCL
SCL low period
SCL high period
Rev
SCL, SDA, SYNC, SALERT,
PG
Sink / source current = 20 mA
SCL, SDA, CTRL, SYNC
SCL, SDA, SYNC, SALERT,
PG
SCL, SDA, CTRL, SYNC
SCL, SDA, SALERT
CTRL to +3.3V
© Flex
min
max
Unit
-2
2
%
-5
5
mV
typ
±5
-2.5
A
2.5
°C
0.4
V
2.25
V
0.8
V
V
10
µA
1.35
-10
10
No internal pull-up
10
0.05
STOP bit to START bit
May 2021
PA3
TP1 = 25 °C, VO = 1.0 V
Internal temperature of
hottest power stage
8
Reference
1/28701-BMR474 Rev. A
5/11/2021
Conditions
Input voltage
READ_VIN
Output voltage
READ_VOUT
Output current
READ_IOUT, Note 5
Temperature
6 (15)
No.
pF
kΩ
2
MHz
0.5
0.26
0
µs
µs
µs
0.26
µs
0.5
0.26
50
µs
µs
Note 1. There are configuration changes to consider when changing the switching frequency. The switching frequency below 450 kHz is not recommended due to
increased ripple current. Changing switching frequency might have other impacts, please check with Flex FAE.
Note 2. A default value of 0 ms forces the device to Immediate Off behavior with TOFF_FALL ramp-down setting being ignored.
Note 3. Automatic restart ~50 ms after fault if the fault is no longer present. Continuous restart attempts if the fault reappear after restart.
Note 4. See section Over Temperature Protection (OTP). The value is internal temperature of power stage.
Note 5. Monitoring Accuracy of output current is optimized for VI = 12 V and VO = 1.0 V.
Ericsson Internal
PRODUCT SPECIFICATION
Prepared (also subject responsible if other)
jidrguaa Rainbo Gu
Approved
7 (15)
No.
Checked
BMR4742001
jiddiyan Diamondseries
Yang PoL Regulatorsjiddiyan
Input 6-15 V, Output up to 80 A / 198 W
2/1301-BMR
474 UenSpecification
Technical
Date
Rev
9
Reference
1/28701-BMR474 Rev. A
5/11/2021
May 2021
PA3
© Flex
Product Electrical Specification
BMR4742001
TP1 = -40 to +85 °C, VI = 6 to 15 V, unless otherwise specified under Conditions.
Typical values given at: TP1 = +25 °C, VI = 12.0 V, max IO, unless otherwise specified under Conditions.
VO defined by pin strap. Standard configuration.
Tested with external CIN = 1000 μF/12 mΩ OS-CON + 4 x 22 μF Ceramic, COUT = 10 x 330 μF/10 mΩ + 12 x 100 μF Ceramic.
In the test set-up sense lines are open and all the output voltage measurements are made on output pins.
Characteristics
VI
Conditions
Input voltage
Input voltage slew rate
Output voltage adjustment range
Output voltage adjustment including
PMBus margining
Output voltage pinstrap set-point
resolution, Note 6
Output voltage accuracy,
Internal resistance +S/-S to VOUT/GND
+S bias current
-S bias current
Vo
VOac
IO
Ilim
Line regulation
IO = max IO
Load regulation
IO = 0 - 100%
Output ripple & noise
(up to 20 MHz bandwidth)
Output current
Current limit threshold
50% of max IO
η
Efficiency
IO = max IO
0.6 ≤Vo ≤2.5
2.5