LT3495BEDDB#TRMPBF: A High-Performance Triple Output LED Driver IC for Advanced Display and Lighting Systems

Release date:2025-09-12 Number of clicks:116

**LT3495BEDDB#TRMPBF: A High-Performance Triple Output LED Driver IC for Advanced Display and Lighting Systems**

In the rapidly evolving landscape of display and lighting technologies, achieving precise, efficient, and independent control over multiple LED strings is a paramount challenge. The **LT3495BEDDB#TRMPBF** from Analog Devices stands out as a premier solution, engineered to meet the stringent demands of high-end applications. This highly integrated monolithic triple output DC/DC converter is specifically designed to function as a constant-current LED driver, delivering exceptional performance and flexibility.

A core strength of the LT3495BEDDB lies in its **truly independent channel control**. Each of its three channels can be driven from a single input voltage, yet they operate completely autonomously. This architecture allows designers to manage three distinct strings of LEDs—each with different forward voltages and current requirements—from a single, compact IC. This capability is invaluable for complex systems like automotive displays, LCD backlighting units (BLUs), and architectural lighting, where different colors or zones require individual dimming and regulation.

The device's performance is underpinned by its **wide input voltage range of 3V to 30V**, making it compatible with a vast array of power sources, including automotive batteries and industrial power supplies. Each channel incorporates an internal 36V, 750mA NPN switch, capable of driving up to ten 100mA LEDs per channel. This high switching capability ensures sufficient headroom for a wide variety of LED configurations. Furthermore, its fixed-frequency, current-mode architecture ensures predictable and low-noise operation, which is critical for sensitive electronic environments.

**Advanced dimming and control features** significantly enhance its versatility. The LT3495BEDDB supports both true PWM dimming and analog dimming. True PWM dimming, achieved via dedicated CTRL pins for each channel, offers an extensive dimming ratio of up to 3000:1 without the color shift often associated with analog methods. This is essential for applications requiring a wide dynamic range of brightness and perfect color fidelity. The device's high switching frequency, adjustable from 400kHz to 2.4MHz, enables the use of small, low-profile inductors and capacitors, thereby minimizing the overall solution footprint—a critical factor in space-constrained designs.

**Robust protection and high efficiency** are integral to its design. The IC includes built-in safeguards such as LED open- and short-circuit protection, ensuring system reliability under fault conditions. Its high level of integration, requiring only a few external components per channel, not only simplifies design but also maximizes power conversion efficiency, reducing thermal management challenges.

**ICGOODFIND**: The LT3495BEDDB#TRMPBF is a superior choice for engineers designing advanced multi-string LED systems. Its combination of independent triple output control, a wide input voltage range, exceptional dimming performance, and robust integrated protection makes it an indispensable component for achieving high-performance, reliable, and compact lighting and display solutions.

**Keywords**: LED Driver IC, Triple Output, PWM Dimming, Wide Input Voltage, Display Backlighting.

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