OZ9902C View Datasheet(PDF) - O2Micro International
Part Name
Description
MFG CO.
'OZ9902C' PDF : 56 Pages View PDF
OZ9916
FEATURES
• Dual drive outputs with 180 degree phase-shift for boost controllers
• Drives up to 6 strings of high power LEDs
• Built-in 6-channel, 90V, 1A MOSFETs for LED current regulation
• Inductor-less switching mode LED current balance control
• Individual PWM dimming for each string
• Wide range analog dimming control
• Synchronized operation of multiple ICs
• Feed forward compensation function
• Over-voltage and over-current protection
• LED open/short circuit protection
• Thermal protection
• LED fault status output
GENERAL DESCRIPTION
The OZ9916 is a high performance LED driver controller optimized for large
screen LED backlight LCD TV applications. It provides an integrated six-channel
LED current regulation control circuit. Using O2Micro’s proprietary design of
switching mode LED current regulation without inductors, this architecture
provides up to 400mA average current and up to 1A pulsed current for each
LED string.
OZ9916 provides six individual Pulse Width Modulation (PWM) dimming inter-
faces for its respective LED string. This IC is suitable for LCD TV applications
where a local-dimming control or scan mode backlight applies.
APPLICATIONS
• LCD TV
APPLICATION DIAGRAM
U.S. Patent #’s 8,044,609; 8,237,379; 8,253,352; and more patents pending.
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