November 28, 2006
4-Channel Integrated LCD Supply
The ISL97650 represents a high power, integrated LCD
supply IC targeted at large panel LCD displays. The
ISL97650 integrates a high power, 2.6A 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 ISL97650 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.
Peak efficiencies are >90% for both the boost and buck while
operating from a 4V to 14V input supply. The current mode
buck offers superior line and load regulation. Available in the
36 Ld QFN package, the ISL97650 is specified for ambient
operation over the -40°C to +105°C temperature range.
(36 LD TQFN)
• 4V to 14V input supply
• AVDD boost up to 20V, with integrated 2.8A FET
• Integrated VON charge pump, up to 35V out
• 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 plus anneal available (RoHS compliant)
• LCD monitors (15”+)
• LCD-TVs (up to 40”)
• Notebook displays (up to 16”)
• Industrial/medical LCD displays
TAPE & PACKAGE PKG.
REEL (Pb-Free) DWG. #
ISL97650ARTZ-T ISL97650ARTZ 13” (4k pcs) 36 Ld 6x6 L36.6x6
ISL97650ARTZ-TK ISL97650ARTZ 13” (1k pcs) 36 Ld 6x6 L36.6x6
NOTE: Intersil Pb-free plus anneal products employ special Pb-free
material sets; molding compounds/die attach materials and 100%
matte tin plate termination finish, which are RoHS compliant and
compatible with both SnPb and Pb-free soldering operations. Intersil
Pb-free products are MSL classified at Pb-free peak reflow
temperatures that meet or exceed the Pb-free requirements of
IPC/JEDEC J STD-020.
1 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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