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UCC3973

Part Number	UCC3973
Manufacturer	Unitrode
Description	BiCMOS Cold Cathode Fluorescent Lamp Driver Controller
Published	Apr 30, 2020
Detailed Description	UCC1972/3 UCC2972/3 UCC3972/3 BiCMOS Cold Cathode Fluorescent Lamp Driver Controller FEATURES • 1mA Typical Supply Cur...
Datasheet	UCC3973 PDF File

Overview

UCC1972/3 UCC2972/3 UCC3972/3 BiCMOS Cold Cathode Fluorescent Lamp Driver Controller FEATURES • 1mA Typical Supply Current • Accurate Lamp Current Control • Analog or Low Frequency Dimming Capability • Open Lamp Protection • Programmable Startup Delay • 4.
5V to 25V Operation • PWM Frequency Synchronized to External Resonant Tank • 8 Pin TSSOP and SOIC Packages Available • Internal Voltage Clamp Protects Transformer from Over-voltage (UCC3973) TYPICAL APPLICATION CIRCUIT DESCRIPTION Design goals for a Cold Cathode Fluorescent Lamp (CCFL) converter used in a notebook computer or portable application include small size, high efficiency, and low cost.
The UCC3972/3 CCFL controllers provide th...

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