TLC59116IRHBR

Overview

The TLC59116IRHBR is a Texas Instruments LED lighting driver IC featuring sixteen constant-current sink channels. It operates via a Fast-Mode Plus (FM+) I2C bus interface for control and data input. The device supports a supply voltage range of 3 V to 5.5 V, with an internal boost converter capable of generating up to 17 V output voltage. Each channel delivers a maximum output current of 120 mA. It is housed in a 32-pin VQFN package (5x5 mm) with an exposed pad and functions within a temperature range of -40°C to +85°C.

Feature Summary

• Integrates sixteen independent constant-current sink channels for precise LED brightness control
• Utilizes a Fast-Mode Plus (FM+) I2C bus interface for efficient serial communication and configuration
• Includes an internal boost converter to drive high-voltage LED strings from low supply voltages
• Provides individual channel dimming capabilities through digital control registers

Applications

• LED backlighting systems for displays and monitors
• General-purpose LED illumination circuits
• Portable electronic devices requiring efficient LED driving
• Automotive interior lighting applications

Procurement Notes

Verify the specific suffix 'IRHBR' corresponds to the VQFN-32 package and reel packaging format when ordering. Confirm RoHS compliance status as indicated by manufacturer documentation. Ensure the design accommodates the thermal requirements of the exposed pad on the 5x5 mm package. Cross-reference the datasheet revision date to ensure compatibility with latest electrical specifications.

Selection Notes

Select this component when a high-channel-count LED driver with integrated boost capability is required. It is suitable for designs needing FM+ I2C control rather than standard I2C speeds. Consider the 120 mA per channel limit for load calculations. Evaluate the thermal performance of the VQFN package against the expected power dissipation in the target application environment.

Part Context

This part belongs to the TLC59116F series of LED drivers from Texas Instruments. It shares functional similarities with other members like the TLC59116IPWR but differs in package type and pinout. The series is designed for applications requiring multiple individually controllable LED outputs with minimal external components due to the integrated boost converter and I2C interface.

Replacement Considerations

The TLC59116FIRHBR is a verified substitute part number within the same family, offering identical functionality and pinout compatibility. Verify that any alternative replacement maintains the same VQFN-32 footprint and electrical characteristics before implementation.