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UCC3973 - BiCMOS Cold Cathode Fluorescent Lamp Driver Controller

Download the UCC3973 datasheet PDF. This datasheet also covers the UCC1972 variant, as both devices belong to the same bicmos cold cathode fluorescent lamp driver controller family and are provided as variant models within a single manufacturer datasheet.

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.

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

Note: The manufacturer provides a single datasheet file (UCC1972-Unitrode.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number UCC3973
Manufacturer Unitrode
File Size 1.10 MB
Description BiCMOS Cold Cathode Fluorescent Lamp Driver Controller
Datasheet download datasheet UCC3973 Datasheet

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Other Datasheets by Unitrode

Part Number Description
UCC3972 BiCMOS Cold Cathode Fluorescent Lamp Driver Controller
UCC3912 Programmable Hot Swap Power Manager
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UCC3916 SCSI Termpower Manager
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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.

View original datasheet text
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.
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