Product Summary

The lt1184cs 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 lt1184cs includes high current, high efficiency switches, an oscillator, a reference, output drive logic, control blocks and protection circuitry. Applications of the lt1184cs include: Notebook and Palmtop Computers, Automotive Displays and Retail Terminals.

Parametrics

lt1184cs absolute maximum ratings: (1) VIN, BAT, Royer, Bulb: 30V; (2) CCFL VSW, LCD VSW: 60V; (3) Shutdown: 6V; (4) ICCFL Input Current: 10mA; (5) DIO Input Current (Peak, < 100ms) : 100mA; (6) Junction Temperature: 100°C; (7) Operating Ambient Temperature Range: 0 to 100°C; (8) Storage Temperature Range: -65 to 150°C; (9) Lead Temperature (Soldering, 10 sec) : 300°C.

Features

lt1184cs features: (1) Wide Input Voltage Range: 3V to 30V; (2) Low Quiescent Current; (3) High Switching Frequency: 200kHz; (4) CCFL Switch: 1.25A, LCD Switch: 625mA; (5) Grounded or Floating Lamp Configurations; (6) Open-Lamp Protection; (7) Positive or Negative Contrast Capability.

Diagrams

lt1184cs Pin Configuration

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
LT1184CS
LT1184CS

IC SW REG CCFL CONTRAST 16-SOIC
Data Sheet
0-1750: $2.28
LT1184CS#PBF
LT1184CS#PBF

IC SW REG CCFL CONTRAST 16-SOIC
Data Sheet
0-1: $3.52
1-25: $2.64
25-100: $2.28
LT1184CS#TR
LT1184CS#TR

IC REG SWITCH DUAL CCFL 16SOIC
Data Sheet
0-2500: $2.31
LT1184CS#TRPBF
LT1184CS#TRPBF

IC SW REG CCFL CONTRAST 16-SOIC
Data Sheet
0-2500: $2.31