LT1184FIS#TRPBF

Special Purpose Regulators Overview

The LT1184FIS#TRPBF is a dual current mode switching regulator manufactured by Analog Devices Inc., housed in a 16-lead SOIC package. It provides control functions for Cold Cathode Fluorescent Lighting (CCFL) and supports both grounded and floating lamp configurations. The device integrates high-current, high-efficiency switches, an oscillator, a reference, output drive logic, control blocks, and protection circuitry. It operates within a wide input voltage range of 3V to 30V with low quiescent current and a switching frequency of 200kHz. Key electrical parameters include a CCFL switch current of 1.25A and an LCD switch current of 625mA.

Special Purpose Regulators Feature Summary

• Dual current mode switching architecture providing integrated control for CCFL backlighting and LCD contrast applications
• Supports flexible grounded or floating lamp configurations for versatile system integration
• Includes built-in open-lamp protection to enhance system reliability and component safety

Special Purpose Regulators Applications

• Notebook and Palmtop Computers
• Portable Instruments
• Automotive Displays
• Retail Terminals

Special Purpose Regulators Procurement Notes

Verify the specific suffix IS#TRPBF against official Analog Devices documentation to confirm the tape and reel packaging configuration and temperature grade. Ensure compatibility with the target PCB footprint for the 16-SOIC package. Cross-reference the part number with the latest datasheet revision to validate pinout assignments and electrical characteristics before finalizing procurement orders.

Special Purpose Regulators Selection Notes

Select this component when a single IC solution is required for both CCFL backlighting and LCD contrast control. It is suitable for designs requiring a wide input voltage range and support for floating lamp topologies. Consider the 200kHz switching frequency and internal switch ratings when designing passive components for the power stage.

Special Purpose Regulators Part Context

This part belongs to the LT1182/LT1183/LT1184 family of CCFL/LCD Contrast Switching Regulators. While the LT1182 and LT1183 offer dual polarity LCD contrast capabilities, the LT1184F variant specifically focuses on the CCFL function while maintaining support for various lamp configurations. It shares core architectural features with its siblings but differs in specific control outputs and pinouts.

Special Purpose Regulators Replacement Considerations

LT1184IS#TRPBF

Special Purpose Regulators FAQ

Does the LT1184F support floating lamp configurations?

Yes, the LT1184F supports both grounded and floating lamp configurations.

What is the maximum switching frequency of the LT1184F?

The LT1184F operates at a switching frequency of 200kHz.