Document
Datasheet
AC/DC Drivers
PWM type DC/DC converter IC Included 650V MOSFET
BM2Pxx2 Series
General Description
The PWM type DC/DC converter for AC/DC provide
an optimum system for all products that include an
electrical outlet.
This IC supports both isolated and non-isolated
devices, enabling simpler design of various types of
low-power electrical converters.
This IC 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 This IC includes the
switching MOSFET.
Basic specifications
Operating Power Supply Voltage Range:
VCC 8.9V to 26.0V DRAIN: to 650V Operating Current: Normal Mode
BM2P012: 0.950mA (Typ.)
BM2P032: 0.775mA (Typ.)
BM2P052: 0.600mA (Typ.)
BM2P092: 0.500mA (Typ.)
Burst Mode: 0.400mA(Typ.)
Oscillation Frequency:
65kHz(Typ.)
Operating Temperature:
- 40C to +105C
MOSFET ON Resistance:
BM2P012: 1.4Ω (Typ.) BM2P032: 2.4Ω (Typ.) BM2P052: 4.0Ω (Typ.) BM2P092: 8.5Ω (Typ.)
Application circuit
AC 85-265 Vac
+ FUSE
-
Filter
Diode Bridge
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 DIP7K
DIP7F
W(Typ.) x D(Typ.) x H(Max.) 9.27mm x 6.35mm x 8.63mm Pitch 2.54mm(Typ.) 9.20mm x 6.35mm x 7.60mm Pitch 2.54mm(Typ.)
Applications AC adapters and household appliances (vacuum
cleaners, humidifiers, air cleaners, air conditioners, IH cooking heaters, rice cookers, etc.)
Line up
Product BM2P012 BM2P032 BM2P052 BM2P092
MOSFET ON resistor 1.4Ω 2.4Ω
4.0Ω 8.5Ω
76
DRAIN DRAIN
5
VCC
SOURCE BR GND FB
1 234
ERROR AMP
Figure 1. Application circuit
Product structure:Silicon monolithic integrated circuit
.www.rohm.com © 2012 ROHM Co., Ltd. All rights reserved. TSZ22111 • 14 • 001
This product is not designed protection against radioactive rays
1/21
TSZ02201-0F2F0A200030-1-2 22.Apr.2019 Rev.007
BM2Pxx2 Series
Absolute Maximum Ratings (Ta=25C)
Parameter Maximum applied voltage 1 Maximum applied voltage 2 Maximum applied voltage 3
Symbol Vmax1 Vmax2 Vmax3
Drain current pulse
IDP
Rating -0.3 to 30 -0.3 to 6.5
650
10.40
Unit V V V
A
Drain current pulse
IDP
5.20
A
Drain current pulse
IDP
2.60
A
Drain current pulse
IDP
1.30
A
Allowable dissipation
Pd
2000
mW
Operating temperature range
Topr -40 to +105 oC
Maximum Junction Temperature
TJMAX
150
oC
Storage temperature range
Tstr
-55 to +150
oC
(Note1) When mounted (on 74.2 mm × 74.2 mm x 1.6 mm thick, glass epoxy on double-layer substrate).
Reduce to 16 mW/C when Ta = 25C or above.
Conditions
VCC
SOURCE, FB, BR DRAIN PW=10us, Duty cycle=1% (BM2P012)
PW=10us, Duty cycle=1% (BM2P032) PW=10us, Duty cycle=1% (BM2P052) PW=10us, Duty cycle=1% (BM2P092)
Operating Conditions (Ta=25C)
Parameter Power supply voltage range 1 Power supply voltage range 2
Symbol VCC VDRAIN
Rating 8.9 to 26.0
to 650
Unit Conditions V VCC pin voltage V DRAIN pin voltage
Electrical Characteristics of MOSFET part (Unless otherwise noted, Ta = 25C, VCC = 15 V)
Parameter
Symbol
Specifications Min Typ Max
Unit
Conditions
[MOSFET Block]
Between drain and source voltage Drain leak current On resistance
On resistance
On resistance
On resistance
V(BR)DDS IDSS
RDS(ON) RDS(ON)
RDS(ON) RDS(ON)
650 -
-
- - V ID=1mA / VGS=0V
- 100 uA VDS=650V / VGS=0V
1.4
2.0
Ω
ID=0.25A / VGS=10V (BM2P012)
2.4
3.6
Ω ID=0.25A / VGS=10V (BM2P032)
4.0
5.5
Ω
ID=0.25A / VGS=10V (BM2P052)
8.5
12.0
Ω
ID=0.25A / VGS=10V (BM2P092)
www.rohm.com © 2012 ROHM Co., Ltd. All rights reserved. TSZ22111 • 15 • 001
2/21
TSZ02201-0F2F0A200030-1-2 22.Apr.2019 Rev.007
BM2Pxx2 Series
Electrical Characteristics of Control IC part (Unless otherwise noted, Ta = 25C, VCC = 15 V)
Parameter
Symbol
Specifications Min Typ Max
Unit
Conditions
[Circuit current]
Circuit current (ON) 1 Circuit current (ON) 1 Circuit current (ON) 1 Circuit current (ON) 1
ION1
700
950
1200
μA
BM2P012 FB=2.0V ( at pulse operation)
ION1
550
775
1050
μA
BM2P032.