TPS61165DBVT

Overview

The TPS61165DBVT is a high-brightness white LED driver IC manufactured by Texas Instruments, housed in a SOT-23-6 surface-mount package. It functions as a boost converter with an integrated switch FET rated at 40V to drive LEDs in series. The device operates within an input voltage range of 3V to 18V and provides an output voltage capability of 3V to 38V. It features a fixed switching frequency of 1.2MHz and supports PWM dimming for brightness control. The internal switch delivers a maximum current of 1.2A. The component is designed for operation across a temperature range of -40°C to +85°C.

Feature Summary

• Integrates a 40V-rated switch FET for driving series-connected LEDs
• Supports PWM dimming for precise brightness control
• Includes EasyScale 1-Wire interface for configuration
• Features load disconnect functionality during shutdown

Applications

• Backlighting systems
• High-brightness white LED drivers
• LED lighting solutions

Procurement Notes

Verify the specific suffix DBVT confirms the SOT-23-6 package variant when ordering. Ensure the application design accommodates the 3V to 18V input range and 1.2A switch current limit. Confirm that the 1.2MHz switching frequency aligns with electromagnetic interference requirements. Validate that the operating temperature range meets the environmental conditions of the target deployment scenario.

Selection Notes

Select this component for space-constrained designs requiring a single-channel boost LED driver. The SOT-23-6 package offers a compact footprint suitable for portable or dense PCB layouts. Consider the 1.2A current capability for moderate power LED strings. The integration of the switch FET reduces external component count compared to discrete solutions.

Part Context

This part belongs to the TPS61165 family of high-brightness LED drivers from Texas Instruments. The family includes variants such as the TPS61165DRVT which utilizes a WSON-6 package. All variants share the core boost topology and 1.2MHz switching frequency but differ in physical packaging and thermal characteristics.

Replacement Considerations

The TPS61165DRVT serves as a package-compatible alternative within the same family, offering identical electrical performance in a WSON-6 footprint.