DatasheetQ Logo
Electronic component search and free download site. Transistors,MosFET ,Diode,Integrated circuits

OZ9906 View Datasheet(PDF) - O2Micro International

Part Name
Description
Manufacturer
OZ9906
O2Micro
O2Micro International O2Micro
OZ9906 Datasheet PDF : 56 Pages
1 2 3 4 5 6 7 8 9 10 Next Last
OZ9956C
FEATURES
• High frequency DC/DC power converter controller for LEDs
• Drives up to 6 strings in parallel
• Integrated LED current balance control circuit
• Integrated power MOSFET
• Up to 1.5MHz switching operation
• Supports phase-shift dimming with adaptive phase control
• External PWM dimming control
• Output over-voltage and short circuit protection
• LED over-current and short circuit protection
• Switch over-current protection
• Thermal protection
• Under-voltage protection
GENERAL DESCRIPTION
The OZ9956C is a high efficiency, DC/DC controller that drives up to six (6)
strings of LEDs in parallel configuration, with multiple LEDs in each string con-
nected in series. It is targeted for notebook/netbook applications.
It provides six (6) LED current sense inputs in an “OR” configuration for im-
proved backlight reliability. This allows the backlight to remain functional in the
event that any string (s) is damaged during normal operation.
OZ9956C supports an external Pulse Width Modulation (PWM) signal for the
phase-shifted dimming control function. It provides an integrated circuit to
balance the current flow through each LED string, as well as, an integrated
power MOSFET.
APPLICATIONS
• Notebook/Netbook
Computer
APPLICATION DIAGRAM
U.S. Patent #’s 7,498,793; 7,847,783; 8,248,439; and more patents pending.
8

Share Link: 

datasheetq.com  [ Privacy Policy ]Request Datasheet ] [ Contact Us ]