LT1183CS#TR Description
The LT1183CS#TR is a dual current mode switching regulator that provides the control function for Cold Cathode Fluorescent Lighting (CCFL) and Liquid Crystal Display (LCD) Contrast. The LT1183CS#TR provides 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 LT1183CS#TR permits unipolar contrast operation and pins out an internal reference.
LT1183CS#TR 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
LT1183CS#TR Applications
Notebook and Palmtop Computers
Portable Instruments
Automotive Displays
Retail Terminals
