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ISL45042 Arkusz danych(PDF) 1 Page - Intersil Corporation |
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ISL45042 Arkusz danych(HTML) 1 Page - Intersil Corporation |
1 / 8 page 1 ® FN6072.7 ISL45042 LCD Module Calibrator The VCOM voltage of an LCD panel needs to be adjusted to remove flicker. The ISL45042 can be used to digitally adjust a panel’s VCOM voltage by controlling its output sink current. The output of the ISL45042 is connected to an external voltage divider and an external VCOM buffer amplifier. In this application, the user can control the VCOM voltage with 7-Bit accuracy (128 steps). Once the desired VCOM setting is obtained, the settings can be stored in the non-volatile EEPROM memory, which would then be automatically recalled during every power-up. The VCOM adjustment and non-volatile memory programming is through a single interface pin (CTL). Once the desired programmed value is obtained, the Counter Enable pin (CE) can be used to prevent further adjustment or programming. The full-scale sink current of the ISL45042 is set using an external resister connected to the SET pin. The full-scale sink current determines the lowest voltage of the external voltage divider. The ISL45042 is available in an 8 Ld 3mmx3mm TDFN package with a maximum thickness of 0.8mm for ultra thin LCD panel design. Pinout ISL45042 (8 LD TDFN) TOP VIEW Features • 128-Step Adjustable Sink Current Output • 2.6V to 3.6V Logic Supply Voltage Operating Range • 4.5V to 20V Analog Supply Voltage Range • Rewritable EEPROM for Storing the Optimum VCOM Value • Output Adjustment Enable/Disable Control • Output Guaranteed Monotonic Over-Temperature • Two Pin Adjustment, Programming and Enable • Ultra Thin 8 Ld 3mmx3mm DFN (0.8mm max) • Pb-free Available (RoHS compliant) Applications • LCD Panels OUT AVDD N/C GND 1 2 3 4 8 7 6 5 SET CE CTL VDD Ordering Information PART NUMBER PART MARKING TEMP. RANGE (°C) PACKAGE PKG. DWG. # ISL45042IR 042I -40 to +85 8 Ld 3x3 TDFN L8.3x3A ISL45042IR-T* 042I -40 to +85 8 Ld 3x3 TDFN Tape and Reel L8.3x3A ISL45042IRZ (Note) 042Z -40 to +85 8 Ld 3x3 TDFN (Pb-free) L8.3x3A ISL45042IRZ-T* (Note) 042Z -40 to +85 8 Ld 3x3 TDFN Tape and Reel (Pb-free) L8.3x3A ISL45042IRZ-TK* (Note) 042Z -40 to +85 8 Ld 3x3 TDFN Tape and Reel (Pb-free) L8.3x3A *Please refer to TB347 for details on reel specifications. NOTE: 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. Data Sheet CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc. Copyright © Intersil Americas Inc. 2003, 2005, 2006, 2007. All Rights Reserved. All other trademarks mentioned are the property of their respective owners. August 29, 2007 |
Podobny numer części - ISL45042_07 |
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Podobny opis - ISL45042_07 |
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