OZ9986SLASH datasheet(24/56 Pages) ETC1

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OZ9904A

FEATURES

• Drives up to 8 strings of LEDs

• Up to 350mA LED current per string

• Supports two boost converters in parallel

• 180 degree phase-shift between the two drive outputs

• Provides two sets of PWM dimming control

• Built-in 180 degree phase-shift PWM dimming control synchronization

• Supports analog dimming

• Over-voltage and over-current protection

• Supports LED open/short circuit protection

• LED fault status output

GENERAL DESCRIPTION

OZ9904A is a high performance LED driver controller optimized for large screen

LED backlight LCD TV applications.

It provides two high voltage gate drive signals for the boost converters, with

180° phase-shift between the two signals. The IC minimizes input and output

current ripple, and provides a flexible design using only one drive signal for low-

power applications through pin DRVSEL.

OZ9904A supports both internal and external Pulse Width Modulation (PWM)

dimming interfaces for various system configurations.

APPLICATIONS

APPLICATION DIAGRAM

• LCD TV

U.S. Patent #’s 7,498,793; 7,847,783; and more patents pending.

OZ9986/ Datenblatt(PDF) 24 Page - List of Unclassifed Manufacturers