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KA7543D

Description
Advanced Feedback Dimming Ballast Control IC
CategoryPower/power management    The power supply circuit   
File Size131KB,16 Pages
ManufacturerFairchild
Websitehttp://www.fairchildsemi.com/
Download Datasheet Parametric Compare View All

KA7543D Overview

Advanced Feedback Dimming Ballast Control IC

KA7543D Parametric

Parameter NameAttribute value
Is it Rohs certified?incompatible
MakerFairchild
Parts packaging codeSOIC
package instructionSOP, SOP14,.25
Contacts14
Reach Compliance Codeunknow
ECCN codeEAR99
Analog Integrated Circuits - Other TypesFLUORESCENT LIGHT CONTROLLER
control modeCURRENT-MODE
Maximum input voltage30 V
Minimum input voltage8.5 V
Nominal input voltage12 V
JESD-30 codeR-PDSO-G14
JESD-609 codee0
length8.56 mm
Number of functions1
Number of terminals14
Maximum operating temperature125 °C
Minimum operating temperature-25 °C
Maximum output current0.3 A
Package body materialPLASTIC/EPOXY
encapsulated codeSOP
Encapsulate equivalent codeSOP14,.25
Package shapeRECTANGULAR
Package formSMALL OUTLINE
Peak Reflow Temperature (Celsius)NOT SPECIFIED
power supply12 V
Certification statusNot Qualified
Maximum seat height1.8 mm
Nominal supply voltage (Vsup)12 V
surface mountYES
Switch configurationPUSH-PULL
Maximum switching frequency8 kHz
technologyBIPOLAR
Temperature levelOTHER
Terminal surfaceTin/Lead (Sn/Pb)
Terminal formGULL WING
Terminal pitch1.27 mm
Terminal locationDUAL
Maximum time at peak reflow temperatureNOT SPECIFIED
width3.95 mm
www.fairchildsemi.com
KA7543
Advanced Feedback Dimming Ballast Control IC
Features
Lamp Current Feedback
Soft Start on Feedback
Voltage Dimming (0V~2V) on Feedback
Switch off Control (Vdm=5V)
Soft Dimming Control
No Lamp Protection
One Lamp Detection for Feedback
Abnormal Protection
Low Start-up and Operating Supply Current
UVLO with 1.8V Hysteresis
Totem Pole Output
Trimmed 1.5% Internal Bandgap Reference
14-DIP & 14-SOP
Descriptions
The KA7543 is an advanced lamp current feedback dimming
control IC. This ballast control IC provides all of the
necessary features to implement wide range dimming
control, soft start and constant power consumption for
intelligent electronic ballast systems. The KA7543 is
optimized for advanced electronic ballast systems requiring
minimum board area. External component counts can be
reduced by adopting the KA7543. Current feedback control
method of the inverter status is one of the most attractive
merits in KA7543. Internal soft start circuitry eliminates the
need for external soft start discrete components. Voltage
controlled soft dimming circuit is built into the IC to control
the lighting output in a wide range. Protection circuitry, no
lamp protection, abnormal protection, one lamp detection,
UVLO, restart on lamp adding , have been added.
14-DIP
Applications
• Electronic Ballast
• Lighting Control System
• Half Bridge Drive Control System
1
14-SOP
1
Rev. 1.0.3
©2002 Fairchild Semiconductor Corporation

KA7543D Related Products

KA7543D KA7543
Description Advanced Feedback Dimming Ballast Control IC Advanced Feedback Dimming Ballast Control IC
Is it Rohs certified? incompatible incompatible
Maker Fairchild Fairchild
Parts packaging code SOIC DIP
package instruction SOP, SOP14,.25 DIP, DIP14,.3
Contacts 14 14
Reach Compliance Code unknow unknow
ECCN code EAR99 EAR99
Analog Integrated Circuits - Other Types FLUORESCENT LIGHT CONTROLLER FLUORESCENT LIGHT CONTROLLER
control mode CURRENT-MODE CURRENT-MODE
Maximum input voltage 30 V 30 V
Minimum input voltage 8.5 V 8.5 V
Nominal input voltage 12 V 12 V
JESD-30 code R-PDSO-G14 R-PDIP-T14
JESD-609 code e0 e0
length 8.56 mm 19.4 mm
Number of functions 1 1
Number of terminals 14 14
Maximum operating temperature 125 °C 125 °C
Minimum operating temperature -25 °C -25 °C
Maximum output current 0.3 A 0.3 A
Package body material PLASTIC/EPOXY PLASTIC/EPOXY
encapsulated code SOP DIP
Encapsulate equivalent code SOP14,.25 DIP14,.3
Package shape RECTANGULAR RECTANGULAR
Package form SMALL OUTLINE IN-LINE
Peak Reflow Temperature (Celsius) NOT SPECIFIED NOT SPECIFIED
Certification status Not Qualified Not Qualified
Maximum seat height 1.8 mm 5.08 mm
surface mount YES NO
Switch configuration PUSH-PULL PUSH-PULL
Maximum switching frequency 8 kHz 8 kHz
technology BIPOLAR BIPOLAR
Temperature level OTHER OTHER
Terminal surface Tin/Lead (Sn/Pb) Tin/Lead (Sn/Pb)
Terminal form GULL WING THROUGH-HOLE
Terminal pitch 1.27 mm 2.54 mm
Terminal location DUAL DUAL
Maximum time at peak reflow temperature NOT SPECIFIED NOT SPECIFIED
width 3.95 mm 7.62 mm
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