Description
The PM6600 consists of a high efficiency monolithic boost converter and six controlled current generators (ROWs), specifically designed to supply LEDs arrays used in the backlight of LCD panels. The device can manage a nominal output voltage up to 36 V (i.e. 10 White-LEDs per ROW).

Features
■ Boost section
    – 4.7 V to 28 V input voltage range
    – Internal power MOSFET
    – Internal +5 V LDO for device supply
    – Up to 36 V output voltage
    – Constant frequency peak current-mode control
    – 200 kHz to 1 MHz adjustable switching frequency
    – External synchronization for multi-device application
    – Pulse-skip power saving mode at light load
    – Programmable soft-start
    – Programmable OVP protection
    – Stable with ceramic output capacitors
    – Thermal shutdown
■ Backlight driver section
    – Six rows with 32 mA maximum current capability (adjustable)
    – Up to 10 WLEDs per row
    – Unused rows detection
    – 500 ns minimum dimming time (1 % minimum dimming duty-cycle at 20 kHz)
    – ±2.1 % current accuracy
    – ±2 % current matching between rows
    – LED failure (open and short circuit) detection

Applications
■ Notebook monitors backlight
■ UMPC backlight