FAN6982MY【PDF 1/16 页】IC CTLR PFC CCM 14-SOICN

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Sheet目录38

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July 2010

?2009 Fairchild Semiconductor Corporation

www.fairchildsemi.com

FAN6982 " Rev. 1.0.3

FAN6982

CCM Power Factor Correction Controller

Features

Continuous Conduction Mode

Innovative Switching-Charge Multiplier-Divider

Average-Current-Mode for Input-Current Shaping

TriFault Detect" Prevent Abnormal Operation for

Feedback Loop

Power-On Sequence Control

Soft-Start Capability

Brownout Protection

Cycle-by-Cycle Peak Current Limiting.

Improves Light-Load Efficiency

Fulfills Class-D Requirements of IEC 1000-3-2

Wide Range Universal AC Input Voltage

Maximum Duty Cycle 97%

Under-Voltage Lockout (UVLO)

Applications

Desktop PC Power Supply

Internet Server Power Supply

LCD TV/Monitor Power Supply

DC Motor Power Supply

Description

The FAN6982 is a 14-pin, Continuous Conduction Mode

(CCM) PFC controller IC intended for Power Factor

Correction (PFC) pre-regulators. The FAN6982 includes

circuits for the implementation of leading edge, average

current, boost-type power factor correction, and

results in a power supply that fully complies with the

IEC1000-3-2 specification.

A TriFault Detect" function helps reduce external

components and provides full protection for feedback

loops such as open, short, and over voltage. An over-

voltage comparator shuts down the PFC stage in the

event of a sudden load decrease. The RDY signal can

be used for power-on sequence control. The EN

function can choose to enable or disable the range

function. FAN6982 also includes PFC soft-start, peak

current limiting, and input voltage brownout protection.

Ordering Information

Part Number Operating Temperature Range

Package

Packing Method

FAN6982MY

-40癈 to +105癈

14-Pin Small Outline Package (SOP)

Tape & Reel

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