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