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| TM MP1026 CCFL Driver For Handheld Display Applications The Future of Analog IC Technology TM DESCRIPTION The MP1026 is a Power IC that offers a complete solution for driving a Cold Cathode Fluorescent Lamp (CCFL). This Power IC converts unregulated DC voltage to a nearly pure sine wave required to ignite and operate the CCFL. The MP1026 greatly increases power conversion efficiency and supports both analog and burst mode dimming, simplifying the module implementation. The MP1026 offers the following distinct performance advantages: * * * * More light for less power Small board implementation Low RF emission Low external components cost FEATURES * * * * * * * * * * * * * * * 4.5V to 14V Power Input (VBatt) Increase Transformer Reliability Open Lamp Timer and Regulation Current and Voltage Feedback Control Logic Level Burst Mode Control Supports Open/Short Lamp Protection Soft-Start Outputs are Short Circuit Protected Allows Burst-Mode Operation Improved Line Transient Response Tightened Lamp Current Accuracy APPLICATIONS Portable DVD Players PDAs Camcorders Digital Cameras The MP1026 is suitable for 2-Cell Li-Ion battery applications using 5V, 9V, or 12V adapters as the power source. "MPS" and "Monolithic Power Systems" are Trademarks of Monolithic Power Systems, Inc. The MP1026 is covered by US Patents 6,316,881 and 6,114,814. TYPICAL APPLICATION Cisb Rs Ccomp CbaR Cft Risb CbtR Csfb 12 11 DA 14 VDD 20 19 18 17 16 15 13 Cs2 Rlfb AGnd Comp PGnd Vdd FT VLFB OutR ISFB Batt Rbosc Bosc DBrt Abrt IL MP1026 PGnd OutL Batt Vdd BtL En BtR Rsfb Cp Rdamp Cs1 CbtL T1 1 2 3 4 5 6 7 8 9 ABrt RIL DB DBrt Cbosc CbaL Cvdd En Rdbr Rbleed Cdbr 10 DA, DB: required for VBATT < 7V IN4148 or BAT54 Gnd Cba F1 VBATT MP1026_TAC_S01 MP1026 Rev. 1.6w 8/25/2005 www.MonolithicPower.com MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. (c) 2005 MPS. All Rights Reserved. 1 |
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