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