Datasheet > BM2PA45F

BM2PA45F

更新时间： 2022-02-26 10:14:40

品牌	Logo	应用领域
罗姆 - ROHM		/
页数	文件大小	规格书
23页	1263K
描述
PWM type DC/DC converter IC Included a Switching MOSFET

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BM2PA45F 数据手册

Datasheet

AC/DC Converter IC

PWM type DC/DC converter IC

Included a Switching MOSFET

BM2PXX5F/BM2PXX6F/BM2PXX7F/BM2PXX8F Series

●General Description

The PWM type DC/DC converter (BM2PXXXF)

●Basic specifications

Operating Power Supply Voltage Range:

for AC/DC provides an optimal system for all products

that include an electrical outlet.

BM2PXXXF supports both isolated and non-

isolated devices, enabling simpler design of various

types of low-power electrical converters.

VCC

DRAIN

8.9V to 26.0V

to 650V

Normal Operating Current:

The built-in 650V HV starter circuit contributes

to low-power consumption.

(BM2Px5xF) ：0.60mA (Typ.)

(BM2Px9xF) ：0.50mA (Typ.)

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.

■Burst Operating Current:

Oscillation Frequency:

Operating Temperature:

0.30mA(Typ.)

65kHz(Typ.)

- 40deg. to +105deg.

MOSFET ON Resistance:

BM2Px5xF：4.0Ω (Typ.)

BM2Px9xF：8.5Ω (Typ.)

●Package

SOP8

●Features

5.00mm x 6.20mm x 1.71mm pitch 1.27mm

 PWM frequency : 65kHz

 PWM current mode control

(Typ.)

(TYP.)

 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

●Applications

For AC adapters and household appliances (vacuum

cleaners, humidifiers, air cleaners, air conditioners, IH

cooking heaters, rice cookers, etc.)

 Secondary Over-Current Protection Circuit

●Application Circuit

Figure 1. Application Circuit

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

.www.rohm.com

TSZ02201-0F2F0A200210-1-2

28.Oct.2016.Rev.002

1/19

TSZ22111・14・001

12 3 4 5 6 7...23

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