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ISL45042 Datasheet(PDF) 1 Page - Intersil Corporation |
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ISL45042 Datasheet(HTML) 1 Page - Intersil Corporation |
1 / 9 page 1 FN6072.9 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 resistor 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 Digital Supply Voltage Operating Range (3.0V Minimum Programming Voltage) • 4.5V to 20V Analog Supply Voltage Operating Range (10.8V Minimum Programming Voltage) • 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 (RoHS Compliant) Applications • LCD Panels OUT AVDD DNC GND 1 2 3 4 8 7 6 5 SET CE CTL VDD Ordering Information PART NUMBER (Notes 1, 2, 3) PART MARKING TEMP. RANGE (°C) PACKAGE (Pb-Free) PKG. DWG. # ISL45042IRZ 042Z -40 to +85 8 Ld 3x3 TDFN L8.3x3A NOTES: 1. Add “-T*” suffix for tape and reel. 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. 3. For Moisture Sensitivity Level (MSL), please see device information page for ISL45042. For more information on MSL please see techbrief TB363. 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 trademark owned by Intersil Corporation or one of its subsidiaries. Copyright © Intersil Americas Inc. 2005-2008, 2011. All Rights Reserved. All other trademarks mentioned are the property of their respective owners. April 13, 2011 |
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