SG6961

更新时间： 2024-10-29 03:32:27

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	571K
描述
Power Factor Controller

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中文翻译

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SG6961 数据手册

Product Specification

Power Factor Controller

SG6961

FEATURES

DESCRIPTION

Boundary Mode PFC Controller

The SG6961 is an 8-pin boundary mode PFC controller IC

intended for controlling PFC pre-regulators. The SG6961

provides a controlled on-time to regulate the output DC

voltage and achieve natural power factor correction. The

maximum on-time of the external switch is programmable

to ensure safe operation during AC brownouts. An

innovative multi-vector error amplifier is built in to

provide rapid transient response and precise output

voltage clamping. A built-in circuit disables the controller

if the output feedback loop is opened. The start-up current

is lower than 20µA and the operating current is under

4.5mA. The supply voltage can be up to 20V, maximizing

application flexibility.

Low Input Current THD

Controlled On-Time PWM

Zero-Current Detection

Cycle-by-Cycle Current Limiting

Leading-Edge Blanking Instead of RC Filtering

Low Start-up Current (10µA Typical)

Low Operating Current (4.5mA Typical)

Feedback Open-Loop Protection

Programmable Maximum On-Time (MOT)

Output Over-Voltage Clamping Protection

Clamped Gate Output Voltage 16.5V

APPLICATIONS

Electric Lamp Ballasts

AC-DC Switching Mode Power Converter

Open-Frame Power Supplies and Power Adapters

Flyback Power Converters with ZCS/ZVS

TYPICAL APPLICATION

VAC

ZCD

COMP

INV

VCC

MOT

SG6961

GND

Version 1.3.1 (IRO33.0028.B6)

- 1 -

www.sg.com.tw • www.fairchildsemi.com

September 24, 2007

12 3 4 5 6 7...14

中文翻译

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与SG6961相关器件

型号	品牌	获取价格	描述	数据表
SG6961DZ	FAIRCHILD	获取价格	Power Factor Controller
SG6961SY	FAIRCHILD	获取价格	CrCM PFC Controller, 8LD, SOIC,JEDEC MS-012, .150" NARROW BODY, 2500/TAPE REEL
SG6961SZ	FAIRCHILD	获取价格	Power Factor Controller
SG6980	FAIRCHILD	获取价格	Single-Stage PFC Controller
SG6980DDZ	ROCHESTER	获取价格	POWER FACTOR CONTROLLER, 68 kHz SWITCHING FREQ-MAX, PDIP16, LEAD FREE, PLASTIC, DIP-16
SG6980DZ	FAIRCHILD	获取价格	Single-Stage PFC Controller
SG6980DZ	ROCHESTER	获取价格	POWER FACTOR CONTROLLER, 68 kHz SWITCHING FREQ-MAX, PDIP16, LEAD FREE, PLASTIC, DIP-16
SG6980SZ	FAIRCHILD	获取价格	Single-Stage PFC Controller
SG6980SZ	ROCHESTER	获取价格	POWER FACTOR CONTROLLER, 68 kHz SWITCHING FREQ-MAX, PDSO16, LEAD FREE, PLASTIC, SOP-16
SG-6LR	ALLEGRO	获取价格	Rectifier Diode, 1 Phase, 1 Element, 25A, 200V V(RRM), Silicon,