FSBH0170/A

更新时间： 2024-11-23 07:00:15

品牌	Logo	应用领域
飞兆/仙童 - FAIRCHILD		开关
页数	文件大小	规格书
16页	702K
描述
Green Mode Fairchild Power Switch (FPS™)

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中文翻译

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数据手册

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FSBH0170/A 数据手册

September 2009

FSBH0F70A, FSBH0170/A, FSBH0270/A, FSBH0370

Green Mode Fairchild Power Switch (FPS™)

Features

Description

The highly integrated FSBH-series consists of an

integrated current-mode Pulse Width Modulator (PWM)

and an avalanche-rugged 700V SenseFET. It is

specifically designed for high-performance offline

Switch Mode Power Supplies (SMPS) with minimal

external components.

Brownout Protection with Hysteresis

Built-In 5ms Soft-Start Function

Internal Avalanche-Rugged 700V SenseFET

No Acoustic Noise During Light-Load Operation

High-Voltage Startup

The integrated PWM controller features include a

proprietary green-mode function that provides off-time

modulation to linearly decrease the switching frequency

at light-load conditions to minimize standby power

consumption. To avoid acoustic-noise problems, the

minimum PWM frequency is set above 18kHz. This

green-mode function enables the power supply to meet

international power conservation requirements. The

PWM controller is manufactured using the BiCMOS

process to further reduce power consumption. The

FSBH-series turns off some internal circuits to improve

power saving when V_FBis lower than 1.6V, which allows

an operating current of only 2.5mA.

Linearly Decreasing PWM Frequency to 18KHz

Peak-Current-Mode Control

Cycle-by-Cycle Current Limiting

Leading-Edge Blanking (LEB)

Synchronized Slope Compensation

Internal Open-Loop Protection

V_DDUnder-Voltage Lockout (UVLO)

V_DDOver-Voltage Protection (OVP)

Internal Auto-Restart Circuit (OVP, OTP)

Constant Power Limit (Full AC Input Range)

Internal OTP Sensor with Hysteresis

The FSBH-series has built-in synchronized slope

compensation to achieve stable peak-current-mode

control. The proprietary external line compensation

ensures constant output power limit over a wide AC

input voltage range, from 90V_ACto 264V_AC

VIN Pin for Pull-HIGH Latch Function and Pull-

LOW Auto-Recovery Protection

The FSBH-series provides many protection functions. In

addition to cycle-by-cycle current limiting, the internal

open-loop protection circuit ensures safety when an

open-loop or output short occurs. PWM output is

disabled until V_DDdrops below the V_TH-OLP, then the

controller starts up again. As long as V_DDexceeds 28V,

the internal OVP circuit is triggered.

Applications

General-purpose switch-mode power supplies and

flyback power converters, including:

Auxiliary Power Supply for PC and Server

Compared with a discrete MOSFET and controller or

RCC switching converter solution, the FSBH-series

reduces total component count, design size, and

weight; while increasing efficiency, productivity, and

system reliability. These devices provide a basic

platform that is well suited for the design of cost-

effective flyback converters, such as in PC auxiliary

power supplies.

SMPS for VCR, SVR, STB, DVD & DVCD Player,

Printer, Facsimile, and Scanner

Adapter for Camcorder

www.fairchildsemi.com

FSBH0F70A, FSBH0170/A, FSBH0270/A, FSBH0370 • Rev. 1.0.1

12 3 4 5 6 7...16

中文翻译

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与FSBH0170/A相关器件

型号	品牌	获取价格	描述	数据表
FSBH0170_11	FAIRCHILD	获取价格	Green Mode Fairchild Power Switch
FSBH0170A	FAIRCHILD	获取价格	Green Mode Fairchild Power Switch (FPS™)
FSBH0170ANY	FAIRCHILD	获取价格	Green Mode Fairchild Power Switch (FPS™)
FSBH0170ANY	ONSEMI	获取价格	700V 集成电源开关，用于 13W 离线反激转换器，100kHz，过电压/欠电压保护
FSBH0170NY	FAIRCHILD	获取价格	Green Mode Fairchild Power Switch (FPS™)
FSBH0170NY_F116	FAIRCHILD	获取价格	Green Mode Fairchild Power Switch
FSBH0170NYF116	FAIRCHILD	获取价格	0.9 A SWITCHING CONTROLLER, 106 kHz SWITCHING FREQ-MAX, PDIP8, GREEN, MS-001BA, DIP-8
FSBH0170NY-F116	ONSEMI	获取价格	700V 集成电源开关，用于 13W 离线反激转换器，100kHz，过电压/欠电压保护
FSBH0170W	FAIRCHILD	获取价格	Green Mode Fairchild Power Switch (FPSâ¢)
FSBH0170WNY	FAIRCHILD	获取价格	Switching Controller, Current-mode, 106kHz Switching Freq-Max, BICMOS, PDIP8

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