Datasheet > BM2P21B

BM2P21B

更新时间： 2022-02-26 13:00:40

品牌	Logo	应用领域
罗姆 - ROHM		/
页数	文件大小	规格书
24页	3098K
描述
PWM Type DC/DC converter IC Integrated Switching MOSFET

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BM2P21B 数据手册

Datasheet

AC/DC Convertor IC

PWM Type DC/DC converter IC

Integrated Switching MOSFET

BM2PXXA/BM2PXXB Series

General Description

Basic specifications

The PWM Type DC/DC converter for AC/DC provides an

optimal system for all products that include an electrical

outlet. BM2PXXA/BM2PXXB supports both isolated and

non-isolated devices, enabling simpler design of various

Types of high-efficiency electrical converters.

■Operating Power Supply Voltage Range

VCC

DRAIN

■Normal Operating Current

■Burst Operating Current

■Oscillation Frequency

■Operating Temperature

■MOSFET ON Resistance

:10.9V to 26.0V

:to 650V

:1.40mA (Typ.)

:0.25mA (Typ.)

:100kHz (Typ.)

:- 40 ^oC to +105 ^oC

:2.0Ω (Typ.)

The built-in starter circuit which withstand 650V pressure

contributes to low-power consumption. Design can be

easily implemented because includes a sensing resistor.

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 100 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 Super

Junction MOSFET.

Package

DIP8

9.27mm×6.35mm×5.33mm pitch 2.54mm

(Typ.) (Typ.)

(Max.)

Key Features

■PWM frequency : 100kHz

■PWM current mode control

■Frequency hopping function

■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

■Per-cycle Over-Current Protection Circuit

■AC Correction function of Over current limiter

■Soft start

Line-up

Current Limitter

0.43A

VCCOVP

FBOLP

Latch

BM2P01A

Latch

BM2P11A

BM2P21A

BM2P31A

BM2P01B

BM2P11B

BM2P21B

BM2P31B

0.43A

Auto Restart

Latch

0.43A

Auto Restart

Latch

0.43A

Auto Restart

Latch

0.54A

Latch

Auto Restart

Latch

■Secondary Over-Current Protection Circuit

■External LATCH function

■X-Capacitor discharge function

0.54A

Auto Restart

0.54A

Auto Restart

Applications

For AC adapters and household appliances

Application Circuit

FUSE

Diode

Bridge

Input

Filter

DRAIN DRAIN

DRAIN

LATCH

GND

VCC

ERROR

AMP

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

.www.rohm.com

TSZ02201-0F1F0A200100-1-2

22. Mar.2017.Rev.002

1/20

TSZ22111・14・001

12 3 4 5 6 7...24

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