Datasheet > FAN6862_10

FAN6862_10

更新时间： 2024-02-12 09:31:04

品牌	Logo	应用领域
飞兆/仙童 - FAIRCHILD		控制器
页数	文件大小	规格书
16页	823K
描述
Highly Integrated Green-Mode PWM Controller

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中文翻译

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数据手册

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FAN6862_10 数据手册

January 2010

FAN6862

Highly Integrated Green-Mode PWM Controller

Features

Description

A highly integrated PWM controller, FAN6862 provides

several features to enhance the performance of flyback

converters. To minimize standby power consumption, a

proprietary green-mode function provides off-time

modulation to continuously decrease the switching

frequency under light-load conditions. Under zero-load

conditions, the power supply enters burst-mode, which

completely shuts off PWM output. Output restarts just

before the supply voltage drops below the UVLO lower

limit. This green-mode function enables power supplies

to meet international power conservation requirements.

Low Startup Current: 8µA

Low Operating Current in Green Mode: 3mA

Peak-Current Mode Operation with Cycle-by-Cycle

Current Limiting

PWM Frequency Continuously Decreasing with

Burst Mode at Light Loads

V_DDOver-Voltage Protection (OVP)

Constant Output Power Limit (Full AC Input Range)

Internal Latch Circuit for OVP, OTP

The FAN6862 is designed for SMPS and integrates a

frequency-hopping function that helps reduce EMI

emission of a power supply with minimum line filters.

The built-in synchronized slope compensation is

proprietary sawtooth compensation for constant output

power limit over universal AC input range. The gate

output is clamped at 18V to protect the external

MOSFET from over-voltage damage.

Fixed PWM Frequency (65KHz) with Frequency

Hopping

Feedback Open-Loop Protection with 56ms Delay

Soft Start Time: 4ms

400mA Driving Capability

Other protection functions include V_DDover-voltage

protection and over-temperature protection. For over-

temperature protection, an external NTC thermistor can

be applied to sense the ambient temperature. When

V_DDOVP or OTP is activated, an internal latch circuit

latches off the controller.

Applications

General-purpose switch-mode power supplies and

flyback power converters, including:

Power Adapters

Part Number

FAN6862TY

FAN6862NY

OVP

Latch

OTP

OLP

Open-Frame SMPS

Latch Auto Restart

SMPS with Surge-Current Output, such as for

Printers, Scanners, and Motor Drivers

Ordering Information

Operating

Temperature Range

Packing

Method

Eco Status

Part Number

Package

FAN6862TY

FAN6862NY

-40 to +105°C

Green

6-Pin SSOT-6

8-Pin Dual In-Line Package (DIP)

Tape & Reel

-40 to +105°C

Tube

For Fairchild’s definition of Eco Status, please visit: http://www.fairchildsemi.com/company/green/rohs_green.html.

FAN6862 • Rev. 1.0.2

www.fairchildsemi.com

12 3 4 5 6 7...16

中文翻译

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与FAN6862_10相关器件

型号	品牌	获取价格	描述	数据表
FAN6862HRTY	FAIRCHILD	获取价格	Switching Controller, Current-mode, 104.5kHz Switching Freq-Max, PDSO6, 1.60 MM, MO-193AA,
FAN6862HRTY	ONSEMI	获取价格	用于 100 KHz 反激式转换器的 6 引脚绿色模式 PWM 控制器
FAN6862HTY	FAIRCHILD	获取价格	Switching Controller, Current-mode, 104.5kHz Switching Freq-Max, PDSO6, 1.60 MM, MO-193AA,
FAN6862L	FAIRCHILD	获取价格	Highly Integrated Green-Mode PWM Controller
FAN6862LTY	FAIRCHILD	获取价格	Highly Integrated Green-Mode PWM Controller
FAN6862NY	FAIRCHILD	获取价格	Highly Integrated Green-Mode PWM Controller
FAN6862R	FAIRCHILD	获取价格	Highly Integrated Green-Mode PWM Controller
FAN6862RTY	ONSEMI	获取价格	用于反激转换器的 6 引脚绿色模式 PWM 控制器，65KHz
FAN6862RTY	FAIRCHILD	获取价格	Highly Integrated Green-Mode PWM Controller
FAN6862TY	FAIRCHILD	获取价格	Highly Integrated Green-Mode PWM Controller

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