TM MP1026 CCFL Driver For Handheld Display Applications The Future of Analog IC Technology TM DESCRIPTION FEATURES 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 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 • • • • The MP1026 is suitable for 2-Cell Li-Ion battery applications using 5V, 9V, or 12V adapters as the power source. Portable DVD Players PDAs Camcorders Digital Cameras “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 CbaR Cft Ccomp Rs DA Risb CbtR VDD Cs2 Rbosc RIL 11 BtL Rdamp 10 PGnd 9 7 8 Batt OutL Cp Vdd 6 En 5 Bosc DBrt 4 3 IL 2 1 Abrt MP1026 ABrt Rlfb Rsfb BtR 12 PGnd 13 Batt OutR 14 15 Comp Vdd 16 17 FT 18 VLFB 19 ISFB AGnd 20 Csfb Cs1 CbtL DB T1 DBrt CbaL Cvdd Cdbr Rdbr Cbosc En Rbleed DA, DB: required for VBATT < 7V IN4148 or BAT54 Gnd Cba F1 VBATT MP1026 Rev. 1.6w 8/25/2005 MP1026_TAC_S01 www.MonolithicPower.com MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited. © 2005 MPS. All Rights Reserved. 1