LT1786F Datasheet - Linear Technology

DESCRIPTION
The LT ®1786F is a fixed frequency, current mode, switch ing regulator that provides the control function for Cold Cathode Fluorescent Lighting (CCFL). The IC includes an efficient high current switch, an oscillator, output drive logic, control circuitry and a micropower 6-bit 100µA full scale current output DAC.
 
FEATURES
■ Wide Battery Input Range: 4.5V to 30V
■ Grounded Lamp or Floating Lamp Configurations
■ Open Lamp Protection
■ Precision 100µA Full-Scale DAC Programming Current
■ 2-Wire SMBus Interface
■ Two Selectable SMBus Addresses
■ DAC Setting Is Retained in Shutdown

APPLICATIONS
■ Notebook and Palmtop Computers
■ Portable Instruments
■ Personal Digital Assistants