Integrated Power Solution for TFT-LCD CXLC8984 includes a step-up converter, two charge pumps, and a high current operational amplifier for TFT LCD. Also included are a logic-controlled high-voltage

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The CXLC8984 includes a step-up converter, two charge pumps, and a high current operational amplifier for TFT LCD. Also included are a logic-controlled high-voltage switch with adjustable delay and an open drain output reset comparator. The step-up DC/DC converter provides the regulated power supply for the panel source driver IC. The converter is a high performance current-mode regulator with operating frequency at 1.2MHz. It also provides fast transient response and high efficiency. The charge pumps in CXLC8984 regulate TFT gate-on and gate-off power supplies. The power-on sequence is controlled by the control logic. The blanking time for reset function is 163ms (typ.) from startup. The RSTIN begins to detect voltage below 1.25V afterward. For more detail information, please refer to the timing chart. CXLC8984 is available in TQFN4X4-24 package

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„ 2.5V to 5.5V Input Supply Range H5H嘉泰姆

„ 1.2MHz Current-Mode Step-Up Converter H5H嘉泰姆

„ Built-In 18V, 3A 0.2Ω n-Channel MOSFET H5H嘉泰姆

„ Charge Pumps for VGON and VGOFF H5H嘉泰姆

„ High Voltage Switch with Adjustable Delay H5H嘉泰姆

„ Thermal Overload Protection H5H嘉泰姆

„ TQFN4X4-24 PackageH5H嘉泰姆

   应用范围 返回TOPH5H嘉泰姆

„ LCD Monitor Panels H5H嘉泰姆

„ Notebook Computer Displays H5H嘉泰姆

„ LCD TVsH5H嘉泰姆

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