TLC5947DAPR

Overview

The TLC5947DAPR is a Texas Instruments LED lighting driver IC featuring 24 constant current outputs. It utilizes a linear topology with a shift register interface for dimming control. The device supports a supply voltage range of 3 V to 5.5 V and delivers up to 30 mA per channel. It operates within a temperature range of -40°C to +85°C and is housed in a 32-PowerTSSOP package.

Feature Summary

• Integrates 24-channel constant current sinks for precise LED brightness control
• Includes internal gray scale clock and PWM functionality for synchronized dimming
• Features thermal shutdown protection to safeguard against overheating conditions

Applications

• LED backlighting systems
• General LED illumination drivers
• Display panel driving circuits

Procurement Notes

Verify the specific suffix DAPR corresponds to the 32-PowerTSSOP tape and reel packaging configuration. Confirm that the component meets RoHS compliance standards required for your assembly process. Ensure the operating temperature range aligns with your environmental specifications before finalizing procurement orders.

Selection Notes

Select this component when a high channel count with individual PWM control is required. The linear topology suits applications where efficiency is secondary to cost and simplicity. Consider the PowerTSSOP package for surface mount assembly constraints. Evaluate power dissipation limits relative to the total number of active channels in the design.

Part Context

This part belongs to the TLC5947 series, designed specifically for LED lighting applications. It provides a scalable solution for driving multiple LEDs from a single controller. The series offers consistent performance across various output configurations. It serves as a dedicated driver for complex lighting arrays requiring precise current regulation.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.