General Description

The PWM type DC/DC converter BM2P015-Z

and BM2P016-Z for AC/DC provides an optimal 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.

The built-in 650V HV starter circuit contributes

to low-power consumption.

A higher degree of design freedom can be

achieved with current detection resistors as external

devices. Current is restricted in each cycle and

excellent performance is demonstrated in bandwidth

and transient response since current mode control is

utilized. The switching frequency is 65 kHz. At light

load, the switching frequency is reduced and high

efficiency is achieved. A frequency hopping function

that contributes to low EMI is also included on chip.

Design can be easily implemented because

includes a 650V switching MOSFET.

特性 Features

PWM frequency : 65kHz

PWM current mode control

Burst operation when load is light

Frequency reduction function

Built-in 650V starter circuit

Built-in 650V switching MOSFET

VCC pin Under-Voltage protection

VCC pin Over-Voltage 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

Applications

For AC adapters and household appliances (vacuum

cleaners, humidifiers, air cleaners, air conditioners, IH

cooking heaters, rice cookers, etc.)