TPS61311YFFT

Overview

The TPS61311YFFT is a Texas Instruments LED lighting driver IC designed for multiple LED camera flash applications. It features a synchronous boost DC-DC converter topology with an integrated 1.5A output current capability. The device operates within an input voltage range of 2.5V to 5.5V and supports PWM dimming control via an I2C-compatible interface. Packaged in a 20-pin DSBGA format, it includes built-in overcurrent protection and overvoltage protection mechanisms to ensure reliable operation across temperatures from -40°C to +85°C.

Feature Summary

• Integrates a synchronous rectification boost converter for efficient power management
• Supports PWM dimming control through an I2C-compatible digital interface
• Includes hardware protections against overcurrent and overvoltage conditions

Applications

• Multiple LED camera flash drivers
• Mobile device illumination systems
• Portable electronic lighting circuits

Procurement Notes

Verify the specific suffix 'YFFT' corresponds to the required tape-and-reel packaging configuration and pin assignment. Confirm that the 20-DSBGA package dimensions align with the target PCB footprint. Ensure the design accommodates the specified thermal requirements for the operating temperature range of -40°C to +85°C. Cross-reference the I2C address settings if multiple devices are used on the same bus.

Selection Notes

Select this component when a single-channel high-current boost driver is needed for camera flash applications. It is suitable for designs requiring precise digital control via I2C rather than analog dimming. Consider the 1.5A peak current limit and the 20-pin compact package size as primary constraints. Verify compatibility with the system's input voltage range of 2.5V to 5.5V before finalizing the bill of materials.

Part Context

This part belongs to the TPS61311 series of LED drivers from Texas Instruments. It is functionally related to the TPS61310, which offers three outputs instead of one. Both devices share similar boost converter architectures and protection features but differ in channel count and specific application targeting for multi-LED versus single-multiple LED configurations.

Replacement Considerations

The TPS61310YFFR is documented as a parameter-equivalent alternative. Note that the TPS61310 provides three outputs compared to the single output of the TPS61311. Verify pinout compatibility and software configuration differences before substitution.