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ISL97651 Datasheet(PDF) 1 Page - Renesas Technology Corp |
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ISL97651 Datasheet(HTML) 1 Page - Renesas Technology Corp |
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1 / 20 page  FN7493 Rev 3.00 Page 1 of 20 April 24, 2009 FN7493 Rev 3.00 April 24, 2009 ISL97651 4-Channel Integrated LCD Supply DATASHEET 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. The ISL97651 have 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 boost and 92% for buck while operating from a 4V to 5.5V input supply. The current mode buck offers superior line and load regulation. Available in the 36 Ld QFN package, the ISL97651 is specified for ambient operation over the -40°C to +105°C temperature range. Pinout ISL97651 (36 LD TQFN) TOP VIEW 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 THERMAL PAD 27 26 25 24 23 22 21 1 2 3 4 5 6 7 VIN1 LX1 LX2 CB LXL VSUP FBL AGND PGND1 PGND2 VINL NOUT PGND3 FBN 8 9 20 19 VREF FBP CM2 CTL Ordering Information PART NUMBER (Notes 1, 2) PART MARKING PACKAGE (Pb-Free) PKG. DWG. # ISL97651ARTZ-T ISL976 51ARTZ 36 Ld 6x6 TQFN L36.6x6 ISL97651ARTZ-TK ISL976 51ARTZ 36 Ld 6x6 TQFN L36.6x6 NOTES: 1. Please refer to TB347 for details on reel specifications. 2. These Intersil Pb-free plastic packaged products employ special Pb-free material sets, molding compounds/die attach materials, and 100% matte tin plate plus anneal (e3 termination finish, which is 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. NOT RECOMMENDED FOR NEW DESIGNS RECOMMENDED REPLACE MENT PART ISL98603 |
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