LT3796EFE

LED Driver IC Overview

The LT3796EFE is a DC/DC controller designed for regulating constant current or constant voltage, specifically optimized for driving LEDs. It features a fixed frequency and current mode architecture that ensures stability across a wide range of input and output voltages. The device supports SEPIC, buck, and boost topologies. Key electrical specifications include an input voltage range of 6V to 100V and a current monitoring capability up to 100V. It offers true color PWM dimming with a ratio of 3000:1 and includes dual current sense amplifiers with reporting functions.

LED Driver IC Feature Summary

• Supports SEPIC, buck, and boost converter topologies for flexible LED drive configurations
• Provides high-precision constant current and constant voltage regulation modes
• Enables deep analog PWM dimming with a 3000:1 ratio for true color fidelity
• Integrates dual current sense amplifiers with diagnostic reporting capabilities

LED Driver IC Applications

• Industrial LED lighting systems requiring wide input voltage ranges
• Display backlights needing precise current regulation and dimming control
• Indicator lights in automotive or commercial applications
• Battery-powered LED fixtures utilizing SEPIC architectures

LED Driver IC Procurement Notes

Verify the specific suffix when ordering; #PBF denotes lead-free packaging while #TRPBF indicates tape and reel packaging. Confirm availability as supply status may vary by region. Ensure the selected package type matches the PCB footprint requirements. Cross-reference the datasheet for thermal pad connections to guarantee proper mounting and heat dissipation during integration.

LED Driver IC Selection Notes

Select this component for applications requiring robust performance across extreme input voltage variations from 6V to 100V. It is suitable for designs demanding high dimming ratios without complex digital interfaces. Consider the 28-TSSOP-EP package for space-constrained layouts. Evaluate the need for dual current sensing if fault reporting is critical for system safety.

LED Driver IC Part Context

The LT3796EFE belongs to Analog Devices' portfolio of LED driver controllers, complementing other evaluation kits like the DC1706A. It serves as a foundational solution for power management in lighting applications, offering a reliable alternative to more complex integrated drivers. The part is widely recognized for its stability in industrial environments where consistent light output is mandatory.

LED Driver IC Replacement Considerations

Direct substitutes are not explicitly listed in public documentation. Designers should evaluate parts within the same LT3796 family, such as the LT3796-1, for minor functional variations. Any replacement must match the 28-TSSOP-EP package and support similar voltage ranges to ensure circuit compatibility.