STP16DPP05XTTR

Overview

The STP16DPP05XTTR is a low voltage, 16-bit constant current LED sink driver manufactured by STMicroelectronics. It features a serial-in, parallel-out shift register feeding a D-type storage register to drive LEDs with regulated current sources adjustable from 3 mA to 40 mA via an external resistor. The device supports a supply voltage range of 3 V to 5.5 V and provides a 20 V output driving capability. It operates at a clock frequency up to 30 MHz and includes open and short circuit error detection on outputs. The component is housed in a 24-TSSOP package with an exposed pad for enhanced thermal dissipation.

Feature Summary

• Integrated 16-bit constant current source regulation for uniform LED brightness control
• Built-in diagnostic circuitry for detecting open lines and short circuits to ground or output voltage
• High-speed serial data interface supporting clock frequencies up to 30 MHz
• Exposed pad TSSOP package design providing superior heat dissipation compared to standard packages

Applications

• LED panel displays requiring high data rate transmission
• Systems interfacing directly with 3.3 V microcontrollers
• Applications necessitating output fault detection capabilities

Procurement Notes

Verify the specific suffix XTTR corresponds to the tape and reel packaging configuration required for your assembly line. Confirm that the exposed pad thermal requirements match your PCB layout specifications. Ensure compatibility with the 3 V to 5.5 V operating voltage range for your system power rails. Check RoHS compliance status if restricted substances are mandated for your region.

Selection Notes

Select this component when a 16-channel constant current sink with integrated diagnostics is required. The exposed pad package is suitable for designs prioritizing thermal management over standard pin counts. Consider the 30 MHz clock speed for applications demanding rapid data updates. Verify that the 3 V minimum supply voltage aligns with your MCU logic levels.

Part Context

This part belongs to the STP16DPP05 series of low-voltage LED drivers. It is designed as a monolithic solution for driving LED panels, combining shift register functionality with power output stages. The series emphasizes ease of use through serial interfaces and built-in error detection, reducing the need for external monitoring components.

Replacement Considerations

STP16CPPS05XTTR and STP16DPPS05XTTR are listed as parameter-equivalent alternatives within the manufacturer's portfolio.