Datasheet > FAN6862WTY

FAN6862WTY

更新时间： 2024-02-10 17:13:48

品牌	Logo	应用领域
飞兆/仙童 - FAIRCHILD		/
页数	文件大小	规格书
16页	2092K
描述
Highly Integrated Green-Mode PWM Controller

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数据手册

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FAN6862WTY 数据手册

September 2012

FAN6862W

Highly Integrated Green-Mode PWM Controller

Features

Description

Low Standby Power: Under 0.1 W

highly integrated PWM controller, FAN6862W

provides several features to enhance the performance

of flyback converters. To minimize standby power

consumption, a proprietary Green Mode 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. Green Mode enables power supplies to meet

international power conservation requirements.

Low Startup Current: 8 µA

Low Operating Current in Green Mode: 600 µA

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 (FAN6862WL) for OVP, OTP

The FAN6862W is designed for SMPS and integrates a

frequency-hopping function that helps to reduce EMI

emission of a power supply with minimum line filters. To

compensate the power limit variation over universal

input range, a bias current limit (V_LIMIT) adaptively keeps

the power limit substantially constant. The gate output is

clamped at 13.5 V to protect the external MOSFET from

over-voltage damage.

Fixed PWM Frequency (65 KHz) with Frequency

Hopping

Feedback Open-Loop Protection: 60 ms Delay

GATE Output Maximum Voltage Clamp: 13.5V

Soft-Start Time: 5 ms

Other protection functions include V_DDOver-Voltage

Protection (OVP), and Over-Temperature Protection

(OTP). For OTP, an external NTC thermistor can be

applied to sense the ambient temperature. When V_DD

OVP or OTP is activated, an internal latch circuit latches

off the controller. Protection types are shown in Table 1.

Soft Driving for EMI Improvement

Full Range Frequency Hopping

Internal OTP Sensor with Hysteresis

Gate Driving Capability: 400 mA

Table 1. Protection Type

Applications

Part Number

FAN6862W

OVP

Latch

A/R

OLP OTP / OTP2

General-purpose switched-mode power supplies and

flyback power converters, including:

A/R

Latch

A/R

Latch

A/R

FAN6862WL

FAN6862WR

Power Adapters

Open-Frame SMPS

SMPS with Surge-Current Output, such as for

Printers, Scanners, Motor Drivers

Ordering Information

Operating

Temperature

Range

Packing

Method

Part Number

Package

FAN6862WTY

FAN6862WLTY

FAN6862WRTY

-40 to +105°C 6-Lead, SOT23, JEDEC MO-178 Variation AB, 1.6 mm Wide Tape & Reel

FAN6862W • Rev. 1.0.0

www.fairchildsemi.com

12 3 4 5 6 7...16

中文翻译

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与FAN6862WTY相关器件

型号	品牌	获取价格	描述	数据表
FAN6863	FAIRCHILD	获取价格	Highly Integrated Green-Mode PWM Controller
FAN6863L	FAIRCHILD	获取价格	Highly Integrated Green-Mode PWM Controller
FAN6863LTY	FAIRCHILD	获取价格	Highly Integrated Green-Mode PWM Controller
FAN6863R	FAIRCHILD	获取价格	Highly Integrated Green-Mode PWM Controller
FAN6863RTY	FAIRCHILD	获取价格	Highly Integrated Green-Mode PWM Controller
FAN6863RTY	ONSEMI	获取价格	用于 65 KHz 反激式转换器的 6 引脚绿色模式 PWM 控制器
FAN6863TY	FAIRCHILD	获取价格	Highly Integrated Green-Mode PWM Controller
FAN6863TY	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
FAN6863W	FAIRCHILD	获取价格	Highly Integrated Green-Mode PWM Controller
FAN6863WL	FAIRCHILD	获取价格	Highly Integrated Green-Mode PWM Controller

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