The TPS61199 from Texas Instruments is a highly integrated and efficient solution designed for LED backlighting applications. This advanced power management integrated circuit (PMIC) is specially crafted to drive multiple strings of LEDs with precise current regulation, making it an ideal choice for use in medium to large-size LCD panels that are commonly found in monitors, TVs, and notebook computers.

Key Features

• Wide Input Voltage Range: The TPS61199 operates over a broad input voltage range, accommodating various power supplies and ensuring flexibility in system design.
• High-Efficiency Boost Converter: At its core, the device includes a boost converter that delivers high efficiency, which is crucial for reducing power consumption and heat generation.
• Accurate Current Matching: Precision current matching between LED strings is a hallmark of the TPS61199, guaranteeing uniform brightness across the display.
• Multiple Dimming Modes: It supports both analog and pulse-width modulation (PWM) dimming modes, providing versatility in controlling the brightness of the LED backlight.
• Integrated Protection Features: The device comes with a suite of protection features, including over-voltage, over-temperature, and LED open/short-circuit protection, enhancing the reliability and longevity of the application.

Applications

The TPS61199 is suitable for a wide range of applications that require efficient and reliable LED backlighting. Some of these applications include:

• LED-backlit LCD TVs
• Monitors and digital signage
• Notebook computers
• Automotive infotainment displays

Technical Specifications

The TPS61199 features a 2.7V to 18V input voltage range, a 38V maximum output voltage, and allows for up to 10 LED strings with a 30mA to 55mA adjustable string current. Its thermal shutdown and soft-start capabilities further ensure safe operation under varying conditions.

For more information or to discuss potential applications, Texas Instruments provides extensive technical documentation and support to assist with the integration of the TPS61199 into your design.