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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 el...