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LT1183 Datasheet PDF

Linear Technology LT1183

The LT1183 permits unipolar contrast operation and pins out an internal reference. The LT1182/LT1183 support grounded and floating lamp configurations. The LT1184F supports grounded and floating lamp configurations.
Part No. LT1183
Datasheet LT1183 Download
Manufacturer
Linear Technology
Description CCFL/LCD Contrast Switching Regulators
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LT1183 datasheet page 1 preview

FEATURES

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DESCRIPTION

The LT®1182/LT1183 are dual current mode switching regulators that provide the control function for Cold Cathode Fluorescent Lighting (CCFL) and Liquid Crystal Display (LCD) Contrast. The LT1184/LT1184F provide only the CCFL function. The ICs include high current, high efficiency switches, an oscillator, a reference, output drive logic, control blocks and protection circuitry. The LT1182 permits positive or negative voltage LCD contrast operation. The LT1184 supports only grounded lamp configurations. The , LTC and LT are registered trademarks of Linear Technology Corporation. Wide Input Voltage Range: 3V to 30V Low Quiescent Current High Switching Frequency: 200kHz CCFL Switch : 1.25A, LCD Switch: 625mA Grounded or Floating Lamp Configurations Open-Lamp Protection Positive or Negative Contrast Capability U

APPLICATIONS

s s s s Notebook and Palmtop Computers Portable Instruments Automotive Displays Retail Terminals TYPICAL APPLICATION 90% Efficient Fl...
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