The LM2758TLEV from Texas Instruments is a high-performance, switch-mode LED driver designed to provide a high-power, high-efficiency solution for portable display backlighting and keypad LED lighting. This compact and versatile device is engineered to drive up to 10 LEDs in series, delivering a constant current to ensure uniform brightness across the display.

Key Features

• Adjustable Output Voltage: The device offers an adjustable output voltage up to 38V, allowing for flexible design options to accommodate a range of LED configurations.
• High Efficiency: With an efficiency rating of up to 90%, the LM2758TLEV minimizes power loss and extends battery life in portable applications.
• Small Footprint: The switch-mode driver is available in a compact, thermally-enhanced LLP package, making it ideal for space-constrained applications.
• Integrated Switch: The LM2758TLEV includes an integrated 40V N-channel MOSFET switch, which reduces external component count and simplifies circuit design.
• Programmable Dimming: It supports programmable dimming control through an I2C-compatible interface, offering precise control over brightness levels.

Applications

The LM2758TLEV is suited for a variety of applications, particularly in the mobile and handheld market where efficient power management and space savings are critical. These applications include:

• Smartphone and tablet display backlighting
• Keypad backlighting for mobile phones and remote controls
• Portable media players
• GPS devices
• Other handheld devices requiring LED illumination

Technical Specifications

The device operates over a wide input voltage range from 2.7V to 5.5V, making it compatible with a variety of power sources. The LM2758TLEV also features built-in safety mechanisms including over-voltage protection, thermal shutdown, and open LED detection, ensuring reliable operation under adverse conditions.

With its robust feature set and compact design, the LM2758TLEV from Texas Instruments stands out as an excellent choice for designers seeking a high-efficiency, scalable solution for LED driving requirements in portable devices.