TLC5921DAPR

Overview

The TLC5921DAPR is an LED lighting driver IC manufactured by Texas Instruments, featuring a boost topology and housed in a 32-HTSSOP package. It provides sixteen outputs with a maximum output current of 80 mA per channel. The device operates on a supply voltage ranging from 4.5 V to 5.5 V and supports a maximum operating frequency of 20 MHz. It delivers an output voltage up to 17 V and functions within a temperature range of -20°C to +85°C.

Feature Summary

• Integrates a shift register and data latch for serial input control
• Includes thermal shutdown circuitry for protection against overheating
• Features externally adjustable constant current sink capability

Applications

• LED backlighting systems
• General LED illumination circuits
• Signage displays

Procurement Notes

Verify the specific suffix 'R' indicates tape-and-reel packaging when sourcing components. Confirm RoHS compliance status through official manufacturer documentation or authorized distributor datasheets prior to integration into production designs.

Selection Notes

Select this component for applications requiring sixteen individually addressable constant current sinks. Ensure the design accommodates the 32-pin HTSSOP footprint and validates power dissipation limits under maximum load conditions at elevated ambient temperatures.

Part Context

This part belongs to the TLC5921 series of linear LED drivers. It serves as a surface-mount replacement for the leaded TLC5921DAP variant, maintaining identical electrical specifications while adapting to automated assembly processes via reel packaging.

Replacement Considerations

TLC5921DAP is listed as a parameter-equivalent alternative.