Datasheet > FAN6754_09

FAN6754_09

更新时间： 2024-01-05 13:39:12

品牌	Logo	应用领域
飞兆/仙童 - FAIRCHILD		控制器
页数	文件大小	规格书
14页	807K
描述
Highly Integrated Green- Mode PWM Controller

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中文翻译

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FAN6754_09 数据手册

December 2009

FAN6754

Highly Integrated Green- Mode PWM Controller

Brownout and V_LimitAdjustment by HV Pin

Features

Description

The highly integrated FAN6754 PWM controller

provides several features to enhance the performance

of flyback converters. To minimize standby power

High-Voltage Startup

AC Input Brownout Protection with Hysteresis

Monitor HV to Adjust V_Limit

consumption,

proprietary green-mode function

provides off-time modulation to continuously decrease

the switching frequency under light-load conditions.

Low Operating Current: 1.7mA

Linearly Decreasing PWM Frequency to 22KHz

Frequency Hopping to Reduce EMI Emission

Fixed PWM Frequency: 65KHz

Under zero-load and very light-load conditions,

FAN6754 saves PWM pulses by entering deep burst

mode. This burst mode function enables the power

supply to meet international power conservation

requirements.

Peak-Current-Mode Control

FAN6754 integrates

a frequency-hopping function

Cycle-by-Cycle Current Limiting

internally to reduce EMI emission of a power supply

with minimum line filters. Built-in synchronized slope

compensation is accomplished by proprietary HV

monitor to adjust V_Limitfor constant output power limit

over universal AC input range. Also, the gate output is

clamped at 13V to protect the external MOSFET from

over-voltage damage.

Leading-Edge Blanking (LEB)

Internal Open-Loop Protection

GATE Output Maximum Voltage Clamp: 13V

V_DDUnder-Voltage Lockout (UVLO)

V_DDOver-Voltage Protection (OVP)

Programmable Over-Temperature Protection (OTP)

Internal Latch Circuit (OVP, OTP)

Other protection functions include AC input brownout

protection with hysteresis and V_DDover-voltage

protection. For over-temperature protection, an external

NTC thermistor can be applied to sense the external

switcher’s temperature. When V_DDOVP or OTP are

activated, an internal latch circuit is used to latch-off the

controller. The latch mode is reset when the V_DDsupply

is removed.

Open-Loop Protection (OLP); Restart for MR, Latch

for ML

Built-in 8ms Soft-Start Function

Internal OTP Sensor with Hysteresis

FAN6754 is available in an 8-pin SOP package.

Applications

General-purpose switch-mode power supplies and

flyback power converters, including:

Power Adapters

Ordering Information

Operating

Temperature

Range

Eco

Status

Part Number

Package

Packing Method

FAN6754MRMY

FAN6754MLMY

-40 to +105°C

Green

8-Pin, Small Outline Package (SOP)

Tape & Reel

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

FAN6754 • Rev. 1.0.1

www.fairchildsemi.com

12 3 4 5 6 7...14

中文翻译

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与FAN6754_09相关器件

型号	品牌	获取价格	描述	数据表
FAN6754_10	FAIRCHILD	获取价格	Highly Integrated Green- Mode PWM Controller
FAN6754A	FAIRCHILD	获取价格	Design Guideline to Replace SG6742 with FAN6754A
FAN6754AMRMY	FAIRCHILD	获取价格	Switching Controller, Current-mode, 69kHz Switching Freq-Max, BICMOS, PDSO8, GREEN, MS-012
FAN6754AMRMY	ONSEMI	获取价格	用于反激转换器的绿色模式 PWM 控制器，65KHz
FAN6754BMRMY	ONSEMI	获取价格	用于反激转换器的绿色模式 PWM 控制器，65KHz
FAN6754MLMY	FAIRCHILD	获取价格	Highly Integrated Green- Mode PWM Controller
FAN6754MRMY	FAIRCHILD	获取价格	Highly Integrated Green- Mode PWM Controller
FAN6754WAMLMY	FAIRCHILD	获取价格	Highly Integrated Green-Mode PWM Controller Brownout and VLimit Adjustment by HV Pin
FAN6754WAMRMY	FAIRCHILD	获取价格	Highly Integrated Green-Mode PWM Controller Brownout and VLimit Adjustment by HV Pin
FAN6754WAMRMY	ONSEMI	获取价格	用于反激转换器的绿色模式 PWM 控制器，65KHz，过电压/欠电压保护

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