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FAN6862_10

Description
SWITCHING CONTROLLER, 68 kHz SWITCHING FREQ-MAX, PDSO6
Categorysemiconductor    Analog mixed-signal IC   
File Size839KB,17 Pages
ManufacturerFairchild
Websitehttp://www.fairchildsemi.com/
Download Datasheet Parametric Compare View All

FAN6862_10 Overview

SWITCHING CONTROLLER, 68 kHz SWITCHING FREQ-MAX, PDSO6

FAN6862_10 Parametric

Parameter NameAttribute value
Number of functions1
Number of terminals6
Rated input voltage15 V
Maximum limit input voltage24 V
Minimum limit input voltage9.5 V
Maximum operating temperature105 Cel
Minimum operating temperature-40 Cel
Processing package descriptionGREEN, MO-193AA, SSOT-6
Lead-freeYes
EU RoHS regulationsYes
stateACTIVE
packaging shapeRECTANGULAR
Package SizeSMALL OUTLINE, THIN PROFILE, SHRINK PITCH
surface mountYes
Terminal formGULL WING
Terminal spacing0.9500 mm
terminal coatingMATTE TIN
Terminal locationDUAL
Packaging MaterialsPLASTIC/EPOXY
Temperature levelINDUSTRIAL
control modePEAK CURRENT
Control TechnologyPULSE WIDTH MODULATION
Analog IC other typesSWITCHING CONTROLLER
Switch configurationSINGLE
Maximum switching frequency68 kHz
FAN6862 — Highly Integrated Green-Mode PWM Controller
January 2010
FAN6862
Highly Integrated Green-Mode PWM Controller
Features
Low Startup Current: 8µA
Low Operating Current in Green Mode: 3mA
Peak-Current Mode Operation with Cycle-by-Cycle
Current Limiting
PWM Frequency Continuously Decreasing with
Burst Mode at Light Loads
V
DD
Over-Voltage Protection (OVP)
Constant Output Power Limit (Full AC Input Range)
Internal Latch Circuit for OVP, OTP
Fixed PWM Frequency (65KHz) with Frequency
Hopping
Feedback Open-Loop Protection with 56ms Delay
Soft Start Time: 4ms
400mA Driving Capability
Description
A highly integrated PWM controller, FAN6862 provides
several features to enhance the performance of flyback
converters. To minimize standby power consumption, a
proprietary green-mode function 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. This green-mode function enables power supplies
to meet international power conservation requirements.
The FAN6862 is designed for SMPS and integrates a
frequency-hopping function that helps reduce EMI
emission of a power supply with minimum line filters.
The built-in synchronized slope compensation is
proprietary sawtooth compensation for constant output
power limit over universal AC input range. The gate
output is clamped at 18V to protect the external
MOSFET from over-voltage damage.
Other protection functions include V
DD
over-voltage
protection and over-temperature protection. For over-
temperature protection, 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.
Applications
General-purpose switch-mode power supplies and
flyback power converters, including:
Power Adapters
Open-Frame SMPS
SMPS with Surge-Current Output, such as for
Printers, Scanners, and Motor Drivers
Part Number
FAN6862TY
FAN6862NY
OVP
Latch
Latch
OTP
Latch
Latch
OLP
Auto Restart
Auto Restart
Ordering Information
Part Number
FAN6862TY
FAN6862NY
Operating
Temperature Range
-40 to +105°C
-40 to +105°C
Eco Status
Green
Green
Package
6-Pin SSOT-6
8-Pin Dual In-Line Package (DIP)
Packing
Method
Tape & Reel
Tube
For Fairchild’s definition of Eco Status, please visit:
http://www.fairchildsemi.com/company/green/rohs_green.html.
© 2009 Fairchild Semiconductor Corporation
FAN6862 • Rev. 1.0.2
www.fairchildsemi.com

FAN6862_10 Related Products

FAN6862_10 FAN6862
Description SWITCHING CONTROLLER, 68 kHz SWITCHING FREQ-MAX, PDSO6 SWITCHING CONTROLLER, 68 kHz SWITCHING FREQ-MAX, PDSO6
Number of functions 1 1
Number of terminals 6 6
Rated input voltage 15 V 15 V
Maximum limit input voltage 24 V 24 V
Minimum limit input voltage 9.5 V 9.5 V
Maximum operating temperature 105 Cel 105 Cel
Minimum operating temperature -40 Cel -40 Cel
Processing package description GREEN, MO-193AA, SSOT-6 GREEN, MO-193AA, SSOT-6
Lead-free Yes Yes
EU RoHS regulations Yes Yes
state ACTIVE ACTIVE
packaging shape RECTANGULAR RECTANGULAR
Package Size SMALL OUTLINE, THIN PROFILE, SHRINK PITCH SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
surface mount Yes Yes
Terminal form GULL WING GULL WING
Terminal spacing 0.9500 mm 0.9500 mm
terminal coating MATTE TIN MATTE TIN
Terminal location DUAL DUAL
Packaging Materials PLASTIC/EPOXY PLASTIC/EPOXY
Temperature level INDUSTRIAL INDUSTRIAL
control mode PEAK CURRENT PEAK CURRENT
Control Technology PULSE WIDTH MODULATION PULSE WIDTH MODULATION
Analog IC other types SWITCHING CONTROLLER SWITCHING CONTROLLER
Switch configuration SINGLE SINGLE
Maximum switching frequency 68 kHz 68 kHz
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