CAT4016W-T1

Overview

The CAT4016W-T1 is a 16-channel constant current LED driver manufactured by onsemi, designed for billboard and general display applications. It operates within a supply voltage range of 3V to 5.5V and delivers a total output current capability of 1.6A. Each channel provides an adjustable output current up to 80mA, with a minimum output voltage of 0.4V. The device utilizes a linear architecture and features PWM dimming control. It is housed in a 24-pin SOIC package (0.295 inch width) and integrates a shift register interface for data input.

Feature Summary

• Provides 16 independent constant current channels for uniform LED illumination
• Supports high-resolution PWM dimming for precise brightness control
• Integrates a serial shift register for simplified data transmission
• Programmable current settings allow customization per application requirements

Applications

• LED billboards and large outdoor displays
• General purpose LED signage systems
• Multi-zone LED lighting arrays
• Digital advertising displays

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm the specific suffix 'W-T1' matches the required tape-and-reel packaging format. Check for RoHS compliance documentation if environmental regulations apply. Ensure the obsolete status does not impact long-term supply chain stability for production runs.

Selection Notes

Select this component when a high channel count is required for uniform LED driving without complex external circuitry. The linear topology suits applications where heat dissipation can be managed effectively. Consider the 24-pin SOIC package constraints for PCB layout. Evaluate thermal performance at maximum load conditions to ensure reliability in enclosed signage environments.

Part Context

The CAT4016 belongs to onsemi's family of linear LED drivers tailored for display applications. It simplifies design by integrating multiple channels into a single IC, reducing component count compared to discrete solutions. The series supports various dimming methods, making it versatile for different display technologies. This specific model targets high-density LED arrays common in modern digital signage.

Replacement Considerations

Public sources indicate the CAT4016W-T1 is obsolete. Verify compatible substitutes such as the CAT4016W or other 16-channel drivers from onsemi that maintain pin compatibility and electrical specifications. Ensure any replacement supports the same 3-5.5V input range and 80mA per channel requirement.