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.
●FEATURES
●■ 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
●APPLICATIONS
●■ Notebook and Palmtop Computers
●■ Portable Instruments
●■ Automotive Displays
●■ Retail Terminals
