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UCC1972 - BiCMOS Cold Cathode Fluorescent Lamp Driver Controller

General 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.

Key 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).

📥 Download Datasheet

Datasheet Details

Part number UCC1972
Manufacturer Unitrode
File Size 1.10 MB
Description BiCMOS Cold Cathode Fluorescent Lamp Driver Controller
Datasheet download datasheet UCC1972 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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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.