Datasheet
AC/DC Drivers
PWM type DC/DC converter IC
Included 650V MOSFET
BM2P039
●General
The PWM type DC/DC converter BM2P039 for
●Features
PWM frequency : 100kHz
AC/DC provides an optimum system for all products
that include an electrical outlet.
PWM current mode method
Frequency hopping function
BM2P039 supports both isolated and non-isolated
devices, enabling simpler design of various types of
low-power electrical converters.
Burst operation when load is light
Frequency reduction function
Built-in 650V start circuit
BM2P039 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.
Switching frequency adopts fixed system. Since
current mode control is utilized, current is restricted in
each cycle and excellent performance is demonstrated
in bandwidth and transient response.
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
The switching frequency is 100 kHz. At light load, the
switching frequency is reduced and high efficiency is
achieved.
Secondary Over current protection circuit
BR pin AC input low voltage protection
A frequency hopping function is also on chip, which
contributes to low EMI.
●Package
DIP7K: 9.20mm×6.35mm×4.30mm pitch 2.54mm
(Typ)
(Typ)
(Typ)
(Typ)
●Basic Specifications
Operating Power Supply Voltage Range :
VCC: 8.9V to 26.0V
DRAIN: to 650V
Operating Current :
Normal Mode 1.000mA (Typ)
Burst Mode 0.400mA (Typ)
100kHz (Typ)
Oscillation Frequency :
Operating Temperature :
-40 oC to +105 oC
MOSFET ON Resistance :
2.4Ω (Typ)
●Applications
AC adapters, TV and household appliances (vacuum
cleaners, humidifiers, air cleaners, air conditioners, IH
cooking heaters, rice cookers, etc.)
●Application circuit
+
FUSE
Diode
Bridge
AC
85-265Vac
Filter
-
ERROR
AMP
BR
Figure 1. Application circuit
○Product structure : Silicon monolithic integrated circuit ○This product has no designed protection against radioactive rays
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