KA7543 ,Advanced Feedback Dimming Ballast Control ICfeatures to implement wide range dimming • Switch off Control (Vdm=5V) control, soft start and cons ..
KA75450 ,Voltage DetectorBlock Diagram1IN INPU PUT T1:T 1:TO O- -9 92 23:SO 3:SOT T- -89 893OU OUT T3:T 3:TO O- -9 92 21:SO ..
KA75450MTF ,Voltage Detector (4.5V)KA75XXXVoltage Detector
KA75450Z ,Voltage DetectorBlock Diagram1IN INPU PUT T1:T 1:TO O- -9 92 23:SO 3:SOT T- -89 893OU OUT T3:T 3:TO O- -9 92 21:SO ..
KA75450ZTA ,Voltage Detector (4.5V)Features Description• Detecting Against Error Operations At The Power On/off. The KA75250/KA75270/K ..
KA7552A ,SMPS ControllerElectrical Characteristics(V = 18V, F = 135KHz, T = 25°C, unless otherwise specified)CC OSC AParame ..
KS05V4 , Integrated ESD Protection array
KS05V4 , Integrated ESD Protection array
KS15-5 ,LAMBDA - Single output 5W ~ 15W AC-DC on-board type power supply
KS24C040 , 4,096/8,192-Bit Serial EEPROM
KS24C040 , 4,096/8,192-Bit Serial EEPROM
KS24C041 , 4,096/8,192-Bit Serial EEPROM
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
Applications Electronic Ballast Lighting Control System Half Bridge Drive Control System
DescriptionsThe 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. V oltage
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.
