Datasheet > BD9227F-E2

BD9227F-E2

更新时间： 2024-11-30 01:15:59

品牌	Logo	应用领域
罗姆 - ROHM		/
页数	文件大小	规格书
29页	1959K
描述
PWM Buck Converter Integrated FET

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BD9227F-E2 数据手册

Datasheet

6V to 20V, 1A 1ch

PWM Buck Converter Integrated FET

BD9227F

General Description

Key Specifications

The BD9227F is a 20V, 1A non-synchronous PWM duty

control buck converter with integrated internal high-side

20V Power MOSFET. Operating frequency is 1.0MHz

fixed by inner circuit. Current mode control with internal

slope compensation simplifies the external compensation

calculation and reduces component count while allowing

the use of ceramic output capacitors. Additional

protection features are included such as Over Current

Protection, Thermal Shutdown and Under Voltage

Lockout. The under voltage lockout and hysteresis can

be set by external resistor. The BD9227F is available in

SOP8.



Input Voltage Range:

Ref. Precision: PWM=H: ±2.0 %(±1.0 %@Ta=25°C)

Max Output Current:

Switching Frequency:

6V to 20 V

1A (Max.)

1.0MHz (Typ.)



Operating Temperature Range: -40℃ to +85°C

Packages

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

5.00mm x 6.20mm x 1.71mm

SOP8

Features

■

Wide Operating Input Range 6V to 20V

20V/200mΩ Internal Power MOSFET

1.0MHz Fixed Operating Frequency

Current Mode

Over Current Hiccup Period Protection

Under Voltage Locked Out(UVLO), Over Voltage

Protection(OVP), Thermal Shut Down(TSD)

Available in SOP8 Package.

SOP8

Applications



Home Appliance

VM Motor

■

Typical Application Circuits

NON

PWM

CNON:

1uF

CVB:

0.1uF

VCC

PWM

CVCC:

10uF

L1:10uH

VOUT

COUT:

10uF

GND

COMP

C2:

1.5nF

R1:

110k

BD9227F

R3:

33k

R2:

10k

Figure 1. Typical Application Circuit

○Product structure：Silicon monolithic integrated circuit ○This product is not designed for protection against radioactive rays

.www.rohm.com

TSZ02201-0252AAJ00010-1-2

8.Jun.2016 Rev.001

1/25

TSZ22111・14・001

12 3 4 5 6 7...29

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