The ISL97650B represents a high power, integrated LCD supply IC targeted at large panel LCD displays. The ISL97650B integrates a high power, 3.2A 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.

The ISL97650B has been designed for ease of layout and low BOM cost. Supply sequencing is integrated for both AVDD -> VOFF -> VON and AVDD/VOFF -> VON sequences. The TFT power sequence uses a separate enable to the logic buck regulator for maximum flexibility.

Features

• 4.2V to 14V Input Supply

• AVDD Boost up to 20V, With Integrated 3.2A FET

• Integrated VON Charge Pump, Up to 35VOUT

• 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 6x6 Thin QFN Package

• Pb-Free (RoHS compliant)

Applications

• LCD Monitors (15”+)

• LCD-TVs (up to 40”)

• Notebook Displays (up to 16”)

• Industrial/Medical LCD Displays