STAP08DP5XTTR

Overview

The STAP08DP5XTTR is a monolithic, low-voltage, 8-bit constant current LED sink driver designed for automotive applications. It features an 8-bit serial-in, parallel-out shift register feeding a D-type storage register. The device provides eight regulated current sources capable of delivering 5-100 mA to drive LEDs. It supports a 20 V output driving capability and operates with a supply voltage ranging from 3 V to 5.5 V. The component utilizes a 30 MHz clock frequency for high-volume data transmission and includes output error detection for short-to-ground, short-to-Vo, and open-line conditions.

Feature Summary

• Integrated output error detection circuitry identifies short-to-ground, short-to-Vo, and open-line faults without increasing pin count
• Adjustable output current via external resistor allows control of LED light intensity from 0% to 100%
• High-speed 30 MHz clock frequency supports system requirements for high-volume data transmission
• Exposed pad TSSOP package enhances heat dissipation capabilities compared to standard packages

Applications

• Automotive LED panel displays
• High-brightness LED array drivers
• LED backlighting systems

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 design matches your PCB layout specifications. Ensure compatibility with 3.3 V microcontroller logic levels for SPI interface connections. Check RoHS3 compliance status against regional regulatory requirements before finalizing procurement.

Selection Notes

Select this component when designing automotive-grade LED drivers requiring integrated fault detection and adjustable current control. The 8-channel architecture suits applications needing independent LED regulation. Consider the 16-TSSOP-EP package for improved thermal performance in compact designs. Verify that the 3 V to 5.5 V supply range aligns with your system's power distribution network.

Part Context

This part belongs to the STAP08 family of low-voltage LED sink drivers manufactured by STMicroelectronics. It is specifically engineered for automotive environments, offering robust diagnostic features alongside standard shifting and latching functions. The device integrates seamlessly with automotive microcontrollers like the STM8A series via SPI interfaces.

Replacement Considerations

STAP08DP05 serves as a verified substitute within the same product family, sharing identical functional characteristics and pinout configurations.