TPS61165DRVT

Overview

The TPS61165DRVT is a high-brightness white LED driver IC manufactured by Texas Instruments, housed in a 6-WSON (2x2 mm) package. It utilizes a boost converter topology with an integrated 40-V rated switch FET to drive LEDs in series. The device operates within a supply voltage range of 3 V to 18 V and delivers a maximum output current of 1.2 A. It supports PWM dimming control and features an EasyScale 1-Wire interface for configuration. The switching frequency is fixed at 1.2 MHz, and the output voltage ranges from 3 V to 38 V. It functions reliably across a temperature range of -40°C to +85°C.

Feature Summary

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

Applications

• High-brightness white LED lighting systems
• LED backlighting applications
• Portable electronic device illumination

Procurement Notes

Verify that the specific part number TPS61165DRVT matches the required WSON-6 package and 1.2 A current rating. Confirm compatibility with the system's input voltage range of 3 V to 18 V and the need for PWM dimming capabilities. Ensure the operating temperature range of -40°C to +85°C meets environmental requirements. Cross-reference the datasheet for pinout and thermal pad specifications to ensure correct PCB layout integration.

Selection Notes

Select this component when a compact solution for driving high-brightness white LEDs is required. The integrated 40-V switch allows for higher series LED configurations without external components. The 1.2 A output current suits applications demanding significant luminous flux. Consider the 6-WSON package size for space-constrained designs. Verify that the 1.2 MHz switching frequency aligns with EMI constraints and inductor selection criteria for the target application.

Part Context

The TPS61165 belongs to Texas Instruments' family of high-brightness LED drivers designed for efficient series LED operation. This specific variant, TPS61165DRVT, distinguishes itself through the WSON-6 surface-mount package, offering a smaller footprint compared to other package options like SOT-23-6 found in variants such as TPS61165DBVR. It shares core electrical characteristics with the broader TPS61165 series but is optimized for dense PCB layouts.

Replacement Considerations

TPS61165DBVR is a direct functional alternative with identical electrical specifications, differing only in the SOT-23-6 package instead of WSON-6. Designers must verify pinout compatibility and thermal dissipation differences between the two packages before substitution.