Datasheet > BM2P181S-Z

BM2P181S-Z

更新时间： 2024-04-09 18:59:45

品牌	Logo	应用领域
罗姆 - ROHM		/
页数	文件大小	规格书
31页	1321K
描述
The PWM type DC/DC converter for AC/DC provides an optimum system for all products that include an

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BM2P181S-Z 数据手册

Datasheet

AC/DC Convertor IC

Non-isolated Type PWM DC/DC Converter IC

Built-in Switching MOSFET

BM2P181S-Z

General Description

Key Specifications

The PWM type DC/DC converter 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 non-isolation.

By a built-in startup circuit that tolerates 650 V, this IC

contributes to low power consumption. A current

detection resistor as internal device realizes the small

power supply designs. Since a current mode control is

utilized, the current can be restricted in each cycle and

an excellent performance is demonstrated in the

bandwidth and transient response. The switching

frequency is fixed to 25 kHz. A frequency hopping

function is also on chip, and it contributes to low EMI. In

addition, a built-in super junction MOSFET which

tolerates 650 V makes the design easy.

◼ Power Supply Voltage Range

DRAIN Pin:

◼ Current at Switching Operation:

◼ Current at Burst Operation:

◼ Switching Frequency:

650 V (Max)

500 µA (Typ)

350 µA (Typ)

25 kHz (Typ)

◼ Operation Temperature Range: -40 °C to +105 °C

◼ MOSFET ON Resistor: 1.5 Ω (Typ)

Package

W (Typ) x D (Typ) x H (Max)

9.27 mm x 6.35 mm x 8.63 mm

pitch 2.54 mm

DIP7K

Features

◼ PWM Current Mode Method

◼ Frequency Hopping Function

◼ Burst Operation at Light Load

◼ Built-in 650 V Startup Circuit

◼ Built-in 650 V Super Junction MOSFET

◼ VCC UVLO (Under Voltage Lockout)

◼ VCC OVP (Over Voltage Protection)

◼ Over Current Detection Function per Cycle

◼ Soft Start Function

Applications

Household Appliances such as LED Lights,

Air-conditioners and Cleaners

Typical Application Circuit

VCC

GND_IC

VOUT

DRAIN

Input

Filter

GND

〇Product structure : Silicon integrated circuit 〇This product has no designed protection against radioactive rays

www.rohm.com

TSZ22111 • 14 • 001

TSZ02201-0F1F0A200650-1-2

29.May.2023 Rev.001

1/28

12 3 4 5 6 7...31

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