31.8201 datasheet, PDF - EEWORLD Datasheet

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31.8201: DescriptionBRASS, GOLD (10) OVER NICKEL FINISH, PCB TERMINAL; CategoryThe connector; File Size5MB，31 Pages; ManufacturerFairchild; Websitehttp://www.fairchildsemi.com/

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31.8201 Overview

BRASS, GOLD (10) OVER NICKEL FINISH, PCB TERMINAL

31.8201 Parametric

Parameter Name	Attribute value
Processing package description	ROHS COMPLIANT
Lead-free	Yes
EU RoHS regulations	Yes
state	ACTIVE
contact surface	Gold(10) OVER Nickel
Contact materials	brass
Manufacturer Series	31.8201
Terminal male and female	Pin
Terminal type	Printed circuit board terminals

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www.fairchildsemi.com

FEB388_002

FAN9611/FAN9612 400W Interleaved

Dual BCM PFC Controller

Evaluation Board User Guide

Featured Fairchild Product: FAN9611, FAN9612

Please contact a local Fairchild Sales representative

for an evaluation board.

FEB388_FAN9611/12 • Rev. 0.0.2

www.fairchildsemi.com

Table of Contents

Overview of the Evaluation Board ............................................................................................. 3

Key Features ............................................................................................................................... 4

Specifications .............................................................................................................................. 5

Test Procedure ............................................................................................................................ 6

Schematic .................................................................................................................................... 7

Boost Inductor Specification....................................................................................................... 8

Line Filter Inductor Specifications ............................................................................................. 9

PCB Layout ............................................................................................................................... 10

Bill of Materials (BOM) ........................................................................................................... 14

10.

Test Results ....................................................................................................................... 16

10.1.

Startup ..................................................................................................................... 16

10.2.

Normal Operation ................................................................................................... 18

10.3.

Line Transient ......................................................................................................... 20

10.4.

Load Transient ........................................................................................................ 21

10.5.

Brownout Protection ............................................................................................... 22

10.6.

Phase Management ................................................................................................. 24

10.7.

Efficiency ................................................................................................................ 27

10.8.

Harmonic Distortion and Power Factor .................................................................. 28

11.

References ......................................................................................................................... 30

12.

Ordering Information ........................................................................................................ 30

13.

Revision History ............................................................................................................... 30

FEB279_FAN9611/12 • Rev. 0.0.2

www.fairchildsemi.com

The following user guide supports the FAN9611/12 400W evaluation board for

interleaved boundary-conduction-mode power-factor-corrected supply. It should be used

in conjunction with the FAN9611/12 datasheet as well as the Fairchild application note

AN-6086 Design Considerations for Interleaved Boundary-Conduction Mode PFC using

FAN9612.

Although marked FAN9612, the evaluation board can be interchangeably used

to evaluate either the FAN9611 (10V turn-on threshold) or FAN9612 controller (12.5V

turn-on threshold). Please visit Fairchild’s website at

www.fairchildsemi.com

for

additional information.

1. Overview of the Evaluation Board

The FAN9611/12 interleaved dual Boundary-Conduction-Mode (BCM) Power-Factor-

Correction (PFC) controllers operate two parallel-connected boost power trains 180º out

of phase. Interleaving extends the maximum practical power level of the control

technique from about 300W to greater than 800W. Unlike the continuous conduction

mode (CCM) technique often used at higher power levels, BCM offers inherent zero-

current switching of the boost diodes (no reverse-recovery losses), which permits the use

of less expensive diodes without sacrificing efficiency. Furthermore, the input and output

filters can be smaller due to ripple current cancellation between the power trains and

doubling of effective switching frequency.

The advanced line feedforward with peak detection circuit minimizes the output voltage

variation during line transients. To guarantee stable operation with less switching loss at

light load, the maximum switching frequency is clamped at 525kHz. Synchronization is

maintained under all operating conditions.

Protection functions include output over-voltage, over-current, open-feedback, under-

voltage lockout, brownout, and redundant latching over-voltage protection. The

FAN9611/12 is available in a lead-free 16-lead SOIC package.

This FAN9611/12 evaluation board is a four-layer board designed for 400W (400V/1A)

rated power. Thanks to the phase management, the efficiency is maintained above 96%

at low-line and high-line, even down to 10% of the rated output power. Efficiency is

96.4% at line voltage 115V

and 98.2% at 230V

under full-load conditions.

FEB279_FAN9611/12 • Rev. 0.0.2

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