CAT3636HV3

Overview

The CAT3636HV3 is a six-channel fractional LED driver IC manufactured by onsemi, designed for high-efficiency lighting applications. It operates within a supply voltage range of 2.5 V to 5.5 V and supports a wide operating temperature range from -40°C to +85°C. The device utilizes a TQFN-16 package (3x3 mm) with surface-mount installation. Key electrical parameters include a maximum power supply voltage of 5.5 V and minimum of 2.5 V. The component features six independent output channels, enabling precise control for multi-zone LED arrays.

Feature Summary

• Integrates six independent current-controlled output channels for flexible LED array configuration
• Supports Quad-Mode dimming architecture combining PWM and analog techniques for flicker-free operation
• Operates efficiently across a wide input voltage range suitable for battery-powered and AC/DC systems
• Compact TQFN-16 package design facilitates space-constrained PCB layouts

Applications

• LED backlighting for mobile devices and portable electronics
• General solid-state lighting fixtures requiring multi-zone control
• Automotive interior illumination systems
• Battery-operated LED lamp arrays

Procurement Notes

Verify component authenticity through authorized onsemi distributors or certified partners. Confirm RoHS compliance status via official datasheets or environmental certificates. Check for obsolescence notices or product discontinuance announcements prior to procurement. Ensure storage conditions meet moisture sensitivity level requirements specified in the handling guidelines. Validate package marking against official part identification records.

Selection Notes

Evaluate thermal performance requirements against the specified operating temperature range. Assess input voltage stability to ensure compatibility with the 2.5 V to 5.5 V operational window. Consider PCB layout constraints due to the TQFN-16 package dimensions. Verify dimming interface requirements align with the Quad-Mode functionality. Review channel current capabilities to match target LED forward voltage and current specifications.

Part Context

The CAT3636HV3 belongs to onsemi's family of high-efficiency LED drivers, specifically engineered for fractional current regulation. It complements similar models like the CAT3637 and CAT3648, offering distinct channel counts and dimming features. This component addresses market needs for compact, multi-channel lighting solutions in consumer electronics and general illumination sectors.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Consult onsemi technical support for direct replacements or pin-compatible alternatives.