LC75760UJA-AH

Overview

The LC75760UJA-AH is a 12-channel constant current LED lighting driver IC manufactured by onsemi. It operates within an input voltage range of 2.7 V to 5.5 V and supports a maximum power dissipation of 1.2 W. The device features a PWM topology with a working frequency of 2 MHz. Each output channel provides a constant current of 50 mA, with high-level and low-level output currents specified at -4 mA and 4 mA respectively. It is housed in an SSOP-24 package and is qualified under AEC-Q101 standards for automotive applications. The component functions reliably across a temperature range from -40°C to +105°C.

Feature Summary

• Provides twelve independent constant current output channels for precise LED control
• Integrates PWM topology for efficient dimming and brightness regulation
• Designed with AEC-Q101 qualification for robust automotive reliability

Applications

• Automotive exterior LED lighting systems
• Interior vehicle illumination modules
• LED backlighting drivers requiring constant current regulation

Procurement Notes

Verify the obsolete status and end-of-life (EOL) designation before initiating any procurement process. Confirm that the specific suffix AH aligns with required manufacturing specifications. Ensure compatibility with existing board layouts due to the SSOP-24 package dimensions. Check for available alternative sources or last-time buy options as standard supply may be restricted.

Selection Notes

Select this component when designing circuits requiring multiple synchronized LED channels with constant current drive capabilities. The 2.7 V to 5.5 V operating range suits various automotive power architectures. Consider the 2 MHz switching frequency for minimizing external filter component sizes. Ensure thermal management strategies account for the 1.2 W power dissipation limit in the SSOP-24 enclosure.

Part Context

This part belongs to onsemi's portfolio of LED lighting driver integrated circuits. It is specifically engineered for automotive environments, evidenced by its AEC-Q101 qualification. The device serves as a specialized solution for driving arrays of LEDs where uniform current distribution across multiple channels is critical for consistent light output and longevity.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Due to the EOL status, design-in alternatives should be evaluated based on pin compatibility, channel count, and current specifications.