TLC59711PWPR

Overview

The TLC59711PWPR is a 12-channel, constant-current sink LED driver featuring 16-bit enhanced spectrum PWM control. It operates within a supply voltage range of 3V to 5.5V and supports output voltages up to 17V. Each channel delivers a linear current of 60mA, suitable for RGB LED applications. The device utilizes a 20-PowerTSSOP (HTSSOP) surface-mount package and functions across an operating temperature range of -40°C to 85°C. Internal clocking and shift register functionality simplify interface requirements.

Feature Summary

• Provides 12-channel constant-current sinking with 16-bit grayscale resolution for precise color control.
• Integrates enhanced spectrum PWM technology to optimize LED color rendering and efficiency.
• Includes internal fault detection mechanisms such as LED open detection and power good flags.

Applications

• RGB LED display systems requiring high-resolution grayscale control
• General-purpose LED lighting drivers with dimming capabilities
• Electronic signage utilizing multi-color LED arrays

Procurement Notes

Verify the specific ordering suffix 'PWPR' corresponds to the tape-and-reel packaging format required for automated assembly processes. Confirm that the 20-HTSSOP footprint matches the designated PCB layout dimensions. Ensure compatibility with the target system's logic voltage levels and thermal management constraints before finalizing procurement orders.

Selection Notes

Select this component when designing circuits necessitating 12 independent channels with high-bit depth dimming accuracy. The integrated shift register architecture reduces external control line complexity compared to parallel-driven alternatives. Consider the 60mA per-channel limit when determining series resistor values or LED string configurations to ensure optimal brightness without exceeding thermal limits.

Part Context

This part belongs to the Texas Instruments TLC5971 family of LED drivers, which are designed for high-performance lighting applications. The PWPR suffix specifically denotes the reel-packaged variant of the TLC59711, distinguishing it from tube-packaged versions like the TLC59711PWP. It shares core functional specifications with other members of the series while differing primarily in packaging and shipping configuration.

Replacement Considerations

The TLC59711PWP serves as a direct pin-compatible alternative offering identical electrical characteristics but packaged in tubes rather than reels. Designers requiring manual placement or different inventory handling may substitute this part number without modifying the circuit schematic or board layout.

FAQ

What is the maximum supply voltage supported by the TLC59711PWPR?

The device supports a maximum supply voltage of 5.5V, with a minimum operating voltage of 3V.

Does the TLC59711PWPR include internal clock generation?

Yes, the IC features an internal clock generator, reducing the need for external timing components.