BM2P012

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:               - 40C to +105C

 MOSFET ON Resistance:

                                                     BM2P012: 1.4Ω (Typ.)

                                                     BM2P032: 2.4Ω (Typ.)

                                                     BM2P052: 4.0Ω (Typ.)

                                                     BM2P092: 8.5Ω (Typ.)

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

Applications

AC adapters and household appliances (vacuum

cleaners, humidifiers, air cleaners, air conditioners, IH

cooking heaters, rice cookers, etc.)

规格书bm2pxx2-e