The TPS61161ADRVR is a high-performance, single-channel, step-up LED driver designed and manufactured by Texas Instruments (TI), a leader in semiconductor solutions. This compact device is well-suited for driving a string of white LEDs, which are commonly used for backlighting in portable displays and other applications requiring a high-brightness LED source.

Key Features

• Wide Input Voltage Range: The TPS61161ADRVR operates from a 3.0V to 18V input voltage range, making it versatile for various power supply configurations.
• Adjustable Output Voltage: It offers an adjustable output voltage up to 38V, which allows the device to drive multiple LEDs in series, ensuring uniform brightness and maximizing efficiency.
• Integrated Switch: The device includes a 1.2A, 40V integrated switch FET, which contributes to a reduced component count and a simplified design.
• High Efficiency: With an efficiency of up to 90%, the TPS61161ADRVR ensures minimal power loss and heat generation, making it ideal for battery-powered applications.
• Programmable Dimming: The TPS61161ADRVR supports both analog and PWM dimming control methods, providing flexibility in brightness control to meet different application requirements.

Applications

The TPS61161ADRVR is suitable for a wide range of applications, including:

• Smartphone and Tablet Backlighting
• LCD Display Backlighting
• Portable Media Player Backlighting
• Automotive Interior Lighting
• General Purpose LED Illumination

Package and Reliability

This LED driver comes in a small 6-pin SON package (DRV), which is ideal for space-constrained applications. The TPS61161ADRVR also incorporates safety features such as over-voltage protection, thermal shutdown, and LED open-circuit protection, ensuring reliable operation under various conditions.

Conclusion

With its wide input voltage range, high efficiency, and flexible dimming options, the TPS61161ADRVR from Texas Instruments stands out as a robust and versatile solution for LED backlighting and illumination applications. Its compact form factor, integrated switch, and comprehensive protection features make it an excellent choice for designers looking to enhance their products with efficient and reliable LED lighting.