STCS05DR

Overview

The STCS05DR is a BiCMOS constant current source designed for driving LEDs in low-voltage applications. It provides a precise output current up to 0.5 A with ±10% precision, set via an external resistor. The device supports input voltages up to 40 V and maintains a voltage overhead of less than 0.5 V. Key electrical features include PWM dimming capability through a dedicated pin, a shutdown function, and an open-drain diagnostic output for load disconnection detection. It operates within a junction temperature range of -40°C to 150°C and is housed in an 8-SOIC package.

Feature Summary

• Integrates a linear constant current driver with internal switching capabilities for high efficiency.
• Provides LED disconnection diagnostic information via an open-drain output pin.
• Supports precise PWM dimming control through a dedicated interface pin.
• Features a low voltage overhead of less than 0.5 V to maximize power efficiency.

Applications

• LED lighting drivers for 5 V systems
• LED lighting drivers for 12 V systems
• LED lighting drivers for 24 V systems

Procurement Notes

Verify the specific suffix 'DR' against the manufacturer's official datasheet to confirm packaging type and tape/reel specifications. Ensure the component matches the required 8-SOIC package dimensions and thermal characteristics. Cross-reference the part number with the latest revision history to confirm RoHS compliance and material declarations. Confirm that the supply chain source provides valid traceability documentation for automotive or industrial grade requirements if applicable.

Selection Notes

Select this component when replacing discrete solutions with a need for higher precision and integration in low-voltage LED circuits. It is suitable for designs requiring a maximum output current of 0.5 A and input voltages up to 40 V. Consider the ±10% current accuracy and the requirement for an external setting resistor. Evaluate the thermal performance within the -40°C to 150°C junction temperature range for the specific application environment.

Part Context

The STCS05DR belongs to the STCS05 family of constant current LED drivers manufactured by STMicroelectronics. This series targets the replacement of discrete component solutions in low-voltage LED applications. The family offers benefits in terms of precision, integration, and reliability compared to traditional discrete designs. The STCS05DR specifically denotes the packaged version of this BiCMOS technology intended for surface-mount assembly.

Replacement Considerations

Direct substitutes within the same family include STCS05ADR. Verify compatibility regarding package type and electrical parameters before substitution.