4-Channel Integrated LCD Supply

The ISL97651 represents a high power, integrated LCD supply IC targeted at large panel LCD displays. The ISL97651 integrates a high power, 4.4A boost converter for AVDD generation, an integrated VON charge pump, a VOFF charge pump driver, VON slicing circuitry and a buck regulator with 2A switch for logic generation.

Features

• 4V to 5.5V input supply

• AVDD boost up to 20V, with integrated 4.4A FET

• Integrated VON charge pump, up to 34VOUT

• VOFF charge pump driver, down to -18V

• VLOGIC buck down to 1.2V, with integrated 2A FET

• Automatic start-up sequencing

- AVDD -> VOFF -> VON or AVDD/VOFF -> VON

- Independent logic enable

• VON slicing

• Thermally enhanced thin QFN package (6mmx6mm)

• Pb-free (RoHS compliant)

Applications

• LCD monitors (15”+)

• LCD-TVs (40”+)

• Notebook displays (up to 16”)

• Industrial/medical LCD displays