BM2P054F Datasheet, PDF (1/23 Pages) Rohm – PWM type DC/DC converter IC

Datasheet
AC/DC Drivers
PWM type DC/DC converter IC
Included 650V MOSFET
BM2PXX4F Series
●General
The PWM type DC/DC converter (BM2PXX4F) for
AC/DC provide an optimum system for all products
that include an electrical outlet.
BM2PXX4F supports both isolated and non-isolated
devices, enabling simpler design of various types of
low-power electrical converters.
BM2PXX4F 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 BM2PXX4F 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
●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
BM2P054F: 0.600mA (Typ.)
BM2P094F: 0.500mA (Typ.)
Burst Mode: 0.400mA (Typ.)
Oscillation Frequency:
Operating Temperature:
65kHz (Typ.)
- 40 ^oC to +105 ^oC
MOSFET ON Resistance:
BM2P054F: 4.0Ω (Typ.)
BM2P094F: 8.5Ω (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
BM2P054F
4.0Ω
BM2P094F
8.5Ω
Figure 1．Application circuit
○Product structure：Silicon monolithic integrated circuit
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© 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111・14・001
○This product is not designed protection against radioactive rays
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TSZ02201-0F2F0A200080-1-2
24. Sep.2015.Rev.008