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What is BM1R00002F?

This electronic component, produced by the manufacturer "ROHM Semiconductor", performs the same function as "CCM corresponding Secondary Side Synchronous Rectification Controller IC".


BM1R00002F Datasheet PDF - ROHM Semiconductor

Part Number BM1R00002F
Description CCM corresponding Secondary Side Synchronous Rectification Controller IC
Manufacturers ROHM Semiconductor 
Logo ROHM Semiconductor Logo 


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Datasheet
Low Consumption and High Accuracy Shunt Regulator Built-in
High Efficiency and Low Standby Power,
CCM corresponding
Secondary Side Synchronous Rectification
Controller IC
BM1R00xxxF
General Description
BM1R00xxxF is a synchronous rectification controller
to be used in the secondary-side output. It has a
built-in ultra-low consumption and high accuracy shunt
regulator, which significantly reduces standby power.
The shunt regulator is constructed in a completely
independent chip that enables it to operate as a GND
reference even when used in high side.
At continuous mode operation, further space saving
can be realized when operating without the input
switching synchronizing signal of the primary side.
Key Specifications
Input Voltage Range: 2.7V to 32V
Circuit Current (No Switching):
800µA(Typ)
Circuit Current (Auto Shutdown) : 120µA (Typ)
DRAIN Terminal Absolute Voltage:
120V
Operating Temperature Range: -40°C to +105°C
Package
W(Typ) x D(Typ) x H(Max)
5.00mm x 6.20mm x 1.71mm
BM1R00xxxF also features a wide operating power
supply voltage range of 2.7V to 32V for various output
applications.
Finally, by adopting the high-voltage 120V process, it
is possible to monitor the drain voltage directly.
Features
Built-in Ultra-Low Consumption Shunt Regulator
Reducing Standby Power Consumption
Synchronous Rectification FET Supports
High and Low Side
120V High Voltage Process DRAIN terminal
Wide Input Operating Voltage Range of
2.7V to 32V
Supports LLC and PWM QR Controller
No Input Required on the Primary-Side at CCM
Built-in Overvoltage Protection for SH_IN and
SH_OUT Terminal
Built-in Thermal Shutdown Function
Built-in Auto Shutdown Function
SOP8 package
Applications
AC-DC Output Power Conversion Applications:
Charger, Adapter, TV, Rice Cooker, Humidifier,
Air Conditioning, Vacuum Cleaner, etc.
SOP8
Lineup Table
Latch Protection Series
Auto Restart Protection Series
Function Name
BM1R00001
BM1R00002
BM1R00003
BM1R00004
BM1R00005
BM1R00006
BM1R00007
BM1R00008
BM1R00009
BM1R00010
BM1R00011
BM1R00012
BM1R00013
BM1R00014
BM1R00015
BM1R00016
BM1R00017
BM1R00018
BM1R00019
BM1R00020
BM1R00021
BM1R00022
BM1R00023
BM1R00024
BM1R00025
BM1R00026
BM1R00027
BM1R00028
BM1R00029
BM1R00030
Compulsion
ON Time
( μs)
1
1
1
1
1
1.5
1.5
1.5
1.5
1.5
2.3
2.3
2.3
2.3
2.3
2.8
2.8
2.8
2.8
2.8
3.5
3.5
3.5
3.5
3.5
NONE
NONE
NONE
NONE
NONE
Compulsion
OFF Time
( μs)
1.3
2
3
3.6
4.6
1.3
2
3
3.6
4.6
1.3
2
3
3.6
4.6
1.3
2
3
3.6
4.6
1.3
2
3
3.6
4.6
1.3
2
3
3.6
4.6
Function Name
BM1R00121
BM1R00122
BM1R00123
BM1R00124
BM1R00125
BM1R00126
BM1R00127
BM1R00128
BM1R00129
BM1R00130
BM1R00131
BM1R00132
BM1R00133
BM1R00134
BM1R00135
BM1R00136
BM1R00137
BM1R00138
BM1R00139
BM1R00140
BM1R00141
BM1R00142
BM1R00143
BM1R00144
BM1R00145
BM1R00146
BM1R00147
BM1R00148
BM1R00149
BM1R00150
Compulsion
ON Time
( μs)
1
1
1
1
1
1.5
1.5
1.5
1.5
1.5
2.3
2.3
2.3
2.3
2.3
2.8
2.8
2.8
2.8
2.8
3.5
3.5
3.5
3.5
3.5
NONE
NONE
NONE
NONE
NONE
Compulsion
OFF Time
( μs)
1.3
2
3
3.6
4.6
1.3
2
3
3.6
4.6
1.3
2
3
3.6
4.6
1.3
2
3
3.6
4.6
1.3
2
3
3.6
4.6
1.3
2
3
3.6
4.6
Product structure : Silicon monolithic integrated circuit
.www.rohm.com
© 2016 ROHM Co., Ltd. All rights reserved.
TSZ22111 14 001
This product has no designed protection against radioactive rays
1/22
TSZ02201-0F4F0A2BM1R0-1-2
20. Apr. 2016 Rev.002

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BM1R00002F equivalent
BM1R00xxxF
Description of Block
1. SET_COMP Block
Monitors the DRAIN terminal voltage, and outputs a signal to turn ON the FET if the DRAIN terminal voltage is less
than or equal to -100mV (Typ).
2. RESET_COMP Block
Monitors the DRAIN terminal voltage and outputs a signal to turn OFF the FET if the DRAIN terminal voltage is more
than or equal to -6mV (Typ).
3. Compulsion ON TIME Block
When the FET is turned ON due to SET_COMP detection, noise occurs on the DRAIN terminal. To prevent the noise
from turning OFF the FET, an ON state should be forced for a certain time. Compulsion ON time is within a range of
0µs (None) to 3.5µs, which is different for each series number (refer to page.1 table).
4. Compulsion OFF TIME Block
When the FET is turned OFF due to RESET_COMP detection, resonance waveforms appear on the DRAIN terminal.
To prevent the noise from turning ON the FET, an OFF state should be forced for a certain time. Compulsion OFF time
is within a range of 1.3µs to 4.6µs, which is different for each series number (refer to page.1 table).
Operation sequence of each block is shown on the figure below.
二次側
DRAIN
VOUT
0V
SET COMP
0V
RESET COMP
0V
VGATE
0V
Compulsion
ON Time 0V
Compulsion
OFF Time
0V
-6mV
-100mV
-6mV
-100mV
ON
RESET
-6mV
-100mV
-6mV
-100mV
ON
RESET
ON ON
ON
TIME
OFF
TIME
Figure 1. Operation sequence
ON
TIME
OFF
TIME
About Maximum Input Frequency
The Maximum Operating Frequency of the IC depends on the Compulsion ON/OFF Time. For example, BM1R00026F and
BM1R00146F Compulsion ON and OFF Time is both equal to s. Considering a variation of 9%, the maximum input
frequency is given by the following:
fMAX = 1 / ((0μs + 1.3μs) x 1.09) = 706kHz
However, since the frequency varies greatly due to the input voltage and load, it will be necessary to select the series in
accordance with each application.
www.rohm.com
© 2016 ROHM Co., Ltd. All rights reserved.
TSZ22111 15 001
4/22
TSZ02201-0F4F0A2BM1R0-1-2
20. Apr. 2016 Rev.002


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Featured Datasheets

Part NumberDescriptionMFRS
BM1R00002FThe function is CCM corresponding Secondary Side Synchronous Rectification Controller IC. ROHM SemiconductorROHM Semiconductor

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