Datasheet

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Product structure : Silicon monolithic integrated circuit ○This product has no designed protection against radioactive rays

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TSZ02201-0F1F0A200150-1-2

5.APRIL.2016.Rev.003

© 2016 ROHM Co., Ltd. All rights reserved.

TSZ22111・14・001

www.rohm.com

AC/DC Drivers

PWM type DC/DC converter IC

Included 650V MOSFET

BM2P039

●

General

The PWM type DC/DC converter BM2P039 for

AC/DC provides an optimum system for all products

that include an electrical outlet.

BM2P039 supports both isolated and non-isolated

devices, enabling simpler design of various types of

low-power electrical converters.

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.

The switching frequency is 100 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.

●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)



Oscillation Frequency :

100kHz (Typ)



Operating Temperature :

-40



MOSFET ON Resistance :

2.4Ω (Typ)

●

Features



PWM frequency : 100kHz



PWM current mode method



Frequency hopping function



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

●Package

DIP7K: 9.20mm×6.35mm×4.30mm pitch 2.54mm

(Typ)

(Typ)

(Typ)

(Typ)

●

Applications

AC adapters, TV and household appliances (vacuum

cleaners, humidifiers, air cleaners, air conditioners, IH

cooking heaters, rice cookers, etc.)

●Application circuit

AC

FUSE

+

-

Filter

Diode

Bridge

ERROR

AMP

BR

Figure 1. Application circuit