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HCPL-7721 - CMOS Optocoupler

Download the HCPL-7721 datasheet PDF. This datasheet also covers the HCPL-0720 variant, as both devices belong to the same cmos optocoupler family and are provided as variant models within a single manufacturer datasheet.

General Description

The UBA2072 is a low voltage IC intended to drive Cold Cathode Fluorescent Lamps (CCFLs) for back-lighting applications.

The IC contains level-shifters, bootstrap diodes and drivers for the external full-bridge power switches.

Key Features

  • Wide supply voltage range (9 V to 30 V DC) Adjustable maximum fault timing Integrated level-shifters Integrated bootstrap diodes Lamp current control Over-voltage control Over-current protection Ignition failure detection Arcing detection Brightness level adjustment through PWM dimming Integrated PWM generator 3.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (HCPL-0720-Agilent.pdf) that lists specifications for multiple related part numbers.

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
D R A FT D D R A FT D D R A FT D R D R A FT D D R A FT UBA2072 Rev. 08.0 — February 2007 Low Voltage Full-bridge control IC for CCFL backlighting R Preliminary data sheet D R A FT R A FT D R A R R A FT D A FT A FT D R A FT D R A FT R A FT D A FT D R FT D R A F D R A FT 1. General description D D R A FT D R The UBA2072 is a low voltage IC intended to drive Cold Cathode Fluorescent Lamps (CCFLs) for back-lighting applications. The IC contains level-shifters, bootstrap diodes and drivers for the external full-bridge power switches. Furthermore, the UBA2072 has a build-in HF oscillator which determines the operating frequency, a phase shift controller for obtaining constant lamp current, and a PWM generator which is used to set the brightness level of the CCFLs.