BM2P249Q Datasheet, PDF (1/23 Pages) Rohm – PWM type DC/DC converter IC Integrated Switching MOSFET for non-Isolated type

Datasheet
AC/DC Convertor IC
PWM type DC/DC converter IC
Integrated Switching MOSFET for non-Isolated type
BM2P249Q
General
The PWM type DC/DC converter series for AC/DC
provides an optimum system for all products that
include an electrical outlet. It enables simpler design of
a high effective converter specializing in 100kHz
on-isolated devices.
This series has a built-in HV starter circuit that
tolerates 650V, and it contributes to low power
consumption. With a current detection resistor as
internal device, it can be designed as small power
supply. 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 fixed to 100 kHz. At light
load, the switching frequency is reduced and high
efficiency is achieved. A frequency hopping function is
also on chip, and it contributes to low EMI. In addition,
a built-in super junction MOSFET which tolerates 650V
makes the design easy.
Basic Specification
■Power Supply Voltage Operation Range:
VCC:
8.00V to 26.50V
DRAIN:
to 650V
■Normal Operation Current
■Burst Operation Current
■Oscillation Frequency
■Operation Temperature Range
■MOSFET ON resistor:
0.60mA (Typ.)
0.35mA(Typ.)
100kHz(Typ.)
- 40 ^oC to +105 ^oC
9.5Ω (Typ.)
Package
DIP7K: 9.20mm×6.35mm×4.30mm pitch 2.54mm
(Typ.) (Typ.) (Max.)
(Typ.)
Features
 PWM frequency: 100kHz
 PWM current mode method
 Frequency hopping function
 Burst operation at light load
 Frequency reduction function
 Built-in 650V start circuit
 Built-in 650V switching MOSFET
 VCC pin under voltage protection
 VCC pin over voltage protection
 Over current limiter function per cycle
 Soft start function
Application
Households such as LED lights, air conditioners, and
cleaners, etc.).
Application circuit
○Product structure : Silicon monolithic integrated circuit
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© 2016 ROHM Co., Ltd. All rights reserved.
TSZ22111・14・001
○This product has no designed protection against radioactive rays
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TSZ02201-0F1F0A200230-1-2
11.July.2016.Rev.001