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LT1786F - SMBus Programmable CCFL Switching Regulator

Datasheet Summary

Description

The LT ®1786F is a fixed frequency, current mode, switching regulator that provides the control function for Cold Cathode Fluorescent Lighting (CCFL).

Features

  • s s s s s s s 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 to-lamp-current control” and communicates using the 2-wire SMBus serial interface. The LT1786F acts as an SMBus slave device using one of two selectable SMBus addresses set by the address pin ADR. On Power-up, the DAC output current assu.

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Datasheet Details

Part number LT1786F
Manufacturer Linear Technology
File Size 350.15 KB
Description SMBus Programmable CCFL Switching Regulator
Datasheet download datasheet LT1786F Datasheet
Additional preview pages of the LT1786F datasheet.

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Full PDF Text Transcription

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LT1786F SMBus Programmable CCFL Switching Regulator FEATURES s s s s s s s 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 to-lamp-current control” and communicates using the 2-wire SMBus serial interface. The LT1786F acts as an SMBus slave device using one of two selectable SMBus addresses set by the address pin ADR. On Power-up, the DAC output current assumes midrange or zero scale, depending on the logic state of the ADR pin.The entire IC can be shut down through the SMBSUS pin or by setting the SHDN bit = 1 in the SMBus command byte.
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