The TPS61165DBVR, manufactured by Texas Instruments, is a compact and efficient LED driver designed specifically for backlighting applications. This device integrates a high-frequency PWM controller with an integrated 40V, 1.2A switch MOSFET, making it suitable for driving high-brightness LEDs efficiently. The TPS61165DBVR supports both analog and PWM dimming methods, providing flexibility in brightness control while maintaining high efficiency. Housed in a space-saving SOT-23 package, it is ideal for portable devices where PCB real estate is limited.

Key Features

• Integrated High-Voltage Switch: Features an internal 40V, 1.2A switch MOSFET, reducing the need for external components and simplifying design.
• Wide Input Voltage Range: Operates from 3V to 18V, accommodating various power sources including single-cell Li-ion batteries.
• High Efficiency: Offers up to 90% efficiency, ensuring minimal power loss and extended battery life in portable applications.
• Dimming Methods: Supports both analog and PWM dimming, allowing precise control over LED brightness without visible flicker.
• Compact Package: Comes in a tiny SOT-23 package, facilitating integration into space-constrained designs.
• Protection Mechanisms: Includes cycle-by-cycle current limiting, thermal shutdown, and under-voltage lockout to ensure reliable operation.
• Adjustable Output Voltage: Allows adjustable output voltages through external resistors, providing flexibility for different LED configurations.
• Low Power Consumption: Designed to minimize standby power consumption, extending battery life in portable devices.

Application Areas

The TPS61165DBVR finds its application in:

• Consumer Electronics: Including smartphones, tablets, and handheld devices requiring high-efficiency LED backlighting.
• Portable Devices: Such as digital cameras, media players, and GPS units needing compact and efficient LED drivers.
• Wearable Technology: Utilized in smartwatches and fitness trackers for powering small form factor displays.
• Automotive Systems: Suitable for automotive infotainment and dashboard lighting, offering reliability and performance in harsh environments.
• Industrial Applications: Employed in industrial lighting systems and portable instruments requiring robust and efficient LED driving solutions.

Summary

The TPS61165DBVR provides a highly efficient and versatile solution for driving high-brightness LEDs in a variety of applications. Its integrated high-voltage switch, support for multiple dimming methods, and wide input voltage range make it ideal for consumer electronics, portable devices, wearable technology, automotive systems, and industrial applications. By delivering high efficiency and precise control in a compact package, this device enables designers to create sophisticated lighting solutions that are both reliable and space-efficient. It stands out as a key component for any application requiring high-performance LED driving with minimal footprint.