STP16CPP05XTTR

Overview

The STP16CPP05XTTR is a monolithic, low-voltage, 16-bit constant current LED sink driver designed for LED panel displays. It integrates a serial-in, parallel-out shift register feeding a D-type storage register with sixteen regulated current sources providing 3 mA to 40 mA output current. The device supports a supply voltage range of 3 V to 5.5 V and guarantees a 20 V output driving capability. It features a maximum clock frequency of 30 MHz, an output current setup time of 40 ns, and operates within a temperature range of -40°C to +125°C.

Feature Summary

• Integrates 16-bit shift register and D-type storage for serial data processing
• Provides adjustable constant current outputs via external resistor
• Includes thermal shutdown protection for enhanced reliability
• Features Schmitt-trigger inputs for noise immunity

Applications

• LED panel displays
• High data rate transmission systems
• Applications interfacing with 3.3 V or 5 V microcontrollers

Procurement Notes

Verify the specific suffix XTTR corresponds to the required tape and reel packaging configuration. Confirm that the 3-40 mA current range aligns with the target LED brightness requirements. Ensure the HTSSOP24 package dimensions fit the PCB layout constraints. Check RoHS compliance status against project specifications.

Selection Notes

Select this component when a lower current range (up to 40 mA) is sufficient compared to the standard 100 mA variants. The inclusion of thermal shutdown makes it suitable for high-density applications where heat dissipation is critical. Verify compatibility with existing 3.3 V logic levels and ensure the 20 V output capability meets the series LED string voltage requirements.

Part Context

This part belongs to the STP16CPP05 family, which offers a reduced current range compared to the STP16CP05 series. While sharing similar architectural features like the 16-bit shift register and 30 MHz clock speed, the CPP05 variant specifically targets applications requiring lower drive currents up to 40 mA. It maintains backward compatibility with standard interface protocols used in LED display control systems.

Replacement Considerations

STP16CP05XTTR provides higher current capacity up to 100 mA.