STP1612PW05XTTR

Overview

The STP1612PW05XTTR is a linear LED driver IC manufactured by STMicroelectronics, designed for high-performance lighting applications. It features 16 constant-current sink outputs with integrated 16-bit PWM grayscale control and an 8-bit global current gain adjustment offering 256 steps. The device operates on a supply voltage range of 3V to 5.5V, delivering up to 60mA per channel. It utilizes a 24-TSSOP package with exposed pad for thermal management and supports serial interface communication at frequencies up to 30MHz.

Feature Summary

• Integrates 16-bit PWM grayscale control for precise brightness modulation across all channels
• Provides 8-bit global current gain adjustment allowing fine-tuned output current scaling in 256 discrete steps
• Features internal switching topology with linear regulation for stable constant-current sinking

Applications

• LED display modules requiring high grayscale resolution
• Backlighting systems for portable electronic devices
• General-purpose LED matrix driving circuits

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and REACH directive adherence prior to integration. Check for specific packaging variants such as tape-and-reel configurations. Ensure the procurement source provides valid traceability documentation for quality assurance purposes.

Selection Notes

Select this component when 16-channel independent current control with high-resolution dimming is required. The 60mA output capability suits medium-density LED arrays. Consider the 24-TSSOP-EP package for thermal dissipation needs. Verify interface compatibility with the host microcontroller's SPI or similar serial protocols before finalizing the design.

Part Context

This part belongs to the STP16 series of LED drivers from STMicroelectronics, which are optimized for display applications. The 'PW' suffix typically denotes the TSSOP package type within this family. These drivers are engineered to replace parallel data lines with serial interfaces, reducing pin count and PCB complexity in multi-channel LED systems.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult official STMicroelectronics resources for end-of-life notices or recommended upgrades if discontinuation occurs.

FAQ

What is the maximum operating frequency of the serial interface?

The serial interface supports clock frequencies up to 30MHz.

How many levels of global current gain adjustment are available?

The device offers 8-bit global current gain adjustment, providing 256 distinct steps.