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BM2P052F 데이터시트 PDF




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부품번호 BM2P052F 기능
기능 PWM type DC/DC converter IC Included 650V MOSFET
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BM2P052F 데이터시트, 핀배열, 회로
Datasheet
AC/DC Drivers
PWM type DC/DC converter IC
Included 650V MOSFET
BM2PXX2F Series
General
The PWM type DC/DC converter (BM2PXX2F) for
AC/DC provide an optimum system for all products
that include an electrical outlet.
BM2PXX2F supports both isolated and non-isolated
devices, enabling simpler design of various types of
low-power electrical converters.
BM2PXX2F built in a HV starter circuit that tolerates
650V, it contributes to low-power consumption.
With current detection resistors as external devices, a
higher degree of design freedom is achieved. Since
current mode control is utilized, current is restricted in
each cycle and excellent performance is demonstrated
in bandwidth and transient response.
The switching frequency is 65 kHz. At light load, the
switching frequency is reduced and high efficiency is
achieved.
A frequency hopping function is also on chip, which
contributes to low EMI.
We can design easily, because BM2PXX2F includes
the switching MOSFET.
Features
PWM frequency : 65kHz
PWM current mode method
Burst operation when load is light
Frequency reduction function
Built-in 650V start circuit
Built-in 650V switching MOSFET
VCC pin under voltage protection
VCC pin overvoltage protection
SOURCE pin Open protection
SOURCE pin Short protection
SOURCE pin Leading-Edge-Blanking function
Per-cycle over current protection circuit
Soft start
Secondary Over current protection circuit
BR pin AC input low voltage protection
BR pin AC input high voltage protection
Package
SOP8
W (Typ.) x D (Typ.) x H (Max.)
5.00mm x 6.20mm x 1.71mm
Basic specifications
Operating Power Supply Voltage Range:
VCC 8.9V to 26.0V DRAIN:~650V
Operating Current: Normal Mode
BM2P052F: 0.60mA (Typ.)
BM2P092F: 0.50mA (Typ.)
Burst Mode: 0.40mA (Typ.)
Oscillation Frequency:
Operating Temperature:
65kHz (Typ.)
- 40 oC to +105 oC
MOSFET ON Resistance:
BM2P052F: 4.0(Typ.)
BM2P092F: 8.5(Typ.)
Application circuit
Applications
AC adapters and household appliances (vacuum
cleaners, humidifiers, air cleaners, air conditioners, IH
cooking heaters, rice cookers, etc.)
Line up
Product MOSFET ON resistor
BM2P052F
4.0
BM2P092F
8.5
Figure 1Application circuit
Product structureSilicon monolithic integrated circuit
.www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
TSZ2211114001
This product is not designed protection against radioactive rays
1/20
TSZ02201-0F2F0A200040-1-2
24. Sep.2015.Rev.006




BM2P052F pdf, 반도체, 판매, 대치품
BM2PXX2F
Electrical Characteristics (Unless otherwise noted, Ta = 25C, VCC = 15 V)
[BR pin function]
BR UVLO detection voltage1
BR UVLO voltage 2
BR UVLO hysteresis
BR UVLO detection delay time1
BR UVLO detection delay time2
VBR1
VBR2
VBR3
TBR1
TBR2
0.45
0.29
-
50
150
0.50 0.55
0.35 0.41
0.15 -
100 150
256 350
BR OVP detection voltage1
BR OVP detection valtage2
BR OVP hysteresis
BR OVP detection delay time1
BR OVP detection delay time2
VBR4
VBR5
VBR6
TBR3
TBR4
2.00
1.90
-
50
50
2.10 2.20
2.00 2.10
0.10 -
100 150
100 150
PIN DESCRIPTIONS
NO. Pin Name
1 VCC
2 N.C.
3 N.C.
4 DRAIN
5 SOURCE
6 BR.
7 GND
8 FB
I/O Equivalent Circuit Diagram
Table 1 Pin Description
I/O Function
I Power supply input pin
--
--
I/O MOSFET DRAIN pin
I/O MOSFET SOURCE pin
I Input AV Voltage monitor pin
I/O GND pin
I Feedback signal input pin
Datasheet
V BR rises
V BR falls
V VBR3=VBR1-VBR2
us BR rises
ms BR falls
V BR rises
V BR falls
V VBR3=VBR1-VBR2
us BR rises
us BR falls
ESD Diode
VCC
-
--
--
--
○○
--
-
-
Figure 2. I/O Equivalent Circuit Diagram
www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
TSZ2211115001
4/20
TSZ02201-0F2F0A200040-1-2
24. Sep.2015.Rev.006

4페이지










BM2P052F 전자부품, 판매, 대치품
BM2PXX2F
Datasheet
(2) Start sequences
(Soft start operation, light load operation, and auto recovery operation during overload protection)
Start sequences are shown in Figure 7. See the sections below for detailed descriptions.
VH
VCC(1pin)
FB(8pin)
VCC=13.5V
Internal REF
Pull Up
Within
32ms
VCC=8.2V
FB OLP ON
64ms
Vout
Iout
Switing
A
Soft
Start
BC
Normal Load
Light LOAD
Over Load
Burst mode
Switching
stop
DE
F GH
I
Figure 7. Start sequences Timing Chart
A: Input voltage VH is applied
B: This IC starts operation when VCC pin voltage rises and VCC > VUVLO1 (13.5 V typ).
Becomes constant level, VCC voltage drops because of the VCC consumption current.
VCC recharge function start if VCC voltage < VCHG1 8.7V typC : With the soft start function, over current limit value
is restricted to prevent any excessive rise in voltage or current.
D: When the switching operation starts, VOUT rises.
The output voltage become to stable state, VCC voltage also become to stable state through auxiliary winding.
Please set the rated voltage within the TFOLP1b period (32ms typ) from VCC voltage > VUVLO1.
E: During a light load, if it reaches FB voltage < VBST (= 0.4Vtyp), the IC starts burst operation to keep power consumption
low.
During burst operation, it becomes low-power consumption mode.
F : When the FB VoltageVFOLP1A=2.8V typ, it becomes a overload operation.
G: When FB pin voltage keeps VFOLP1A (= 2.8V typ) at or above T FOLP (64ms typ), the overload protection function is
triggered and switching stops 64mS later. If the FB pin voltage becomes FB<VFOLP1B even once, the IC’s FB OLP
timer is reset.
H : If the VCC voltage drops to VCC < VUVLO2 (7.7Vtyp) or below, restart is executed.
I: The IC’s circuit current is reduced and the VCC pin value rises. (Same as B)
www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
TSZ2211115001
7/20
TSZ02201-0F2F0A200040-1-2
24. Sep.2015.Rev.006

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PWM type DC/DC converter IC Included 650V MOSFET

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BM2P052F

PWM type DC/DC converter IC Included 650V MOSFET

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