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ROHM Semiconductor - PWM type DC/DC converter IC

Numéro de référence BM2P249Q
Description PWM type DC/DC converter IC
Fabricant ROHM Semiconductor 
Logo ROHM Semiconductor 





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BM2P249Q fiche technique
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
9.5(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
.www.rohm.com
© 2016 ROHM Co., Ltd. All rights reserved.
TSZ2211114001
This product has no designed protection against radioactive rays
1/19
TSZ02201-0F1F0A200230-1-2
11.July.2016.Rev.001

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