OZ9986SLASH datasheet(36/56 Pages) ETC1

36 / 56 page

OZ526

FEATURES

• High frequency DC/DC power converter for LEDs

• Integrated power MOSFET

• Integrated LED current balance control circuit

• User-defined operation frequency

• Drives 1 or 2 strings

• External PWM and Analog dimming control

• Converter output over-voltage protection

• Internal power MOSFET over-current protection

• Over-current protection for each string

• Output short circuit detection

• Open diode and thermal protection

GENERAL DESCRIPTION

The OZ526 is a high efficiency DC/DC controller with an integrated power

MOSFET that drives one string or two LED strings in parallel configuration, with

multiple LEDs connected in series. It is targeted for netbook and PND (Personal

Navigation Device) backlight applications.

OZ526 provides two LED current sense inputs in an “OR” configuration for

improved backlight reliability. This allows the backlight to remain functioning in

the event that any string(s) is damaged during normal operation. The control-

ler receives an external Pulse Width Modulation (PWM) signal for the dimming

control function.

APPLICATIONS

APPLICATION DIAGRAM

• GPS

• PND

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

OZ9986/ Datasheet(PDF) 36 Page - List of Unclassifed Manufacturers