CAT4104VP2-GT3

Overview

The CAT4104VP2-GT3 is a four-channel LED lighting driver IC manufactured by onsemi, designed for series and parallel LED configurations. It utilizes a boost topology to drive high-brightness LEDs with individual channel currents up to 175 mA, supporting a total maximum output current of 700 mA across all channels. The device operates within an input voltage range of 3 V to 5.5 V and can withstand output voltages up to 25 V, making it suitable for long LED strings. It features constant current regulation set via an external resistor on the RS ET pin. The component is housed in a TDFN-8 package (2mm x 3mm) and supports surface mount installation. It functions reliably within an operating temperature range of -40°C to +85°C.

Feature Summary

• Provides four matched low-dropout current sinks capable of driving up to 175 mA per channel or 700 mA combined.
• Supports high-voltage LED pins up to 25 V for extended string applications.
• Enables flexible current setting through an external resistor connected to the RS ET pin.
• Integrates thermal shutdown protection that activates when junction temperature exceeds 150°C.

Applications

• High-brightness LED string illumination systems
• Portable electronic device backlighting
• General solid-state lighting fixtures

Procurement Notes

Verify the specific suffix GT3 corresponds to the TDFN-8 package and reel packaging configuration as listed in official catalogs. Confirm RoHS compliance status and environmental declarations against the latest manufacturer documentation prior to integration. Ensure design inputs match the specified 3 V to 5.5 V supply range and 25 V output capability to avoid operational mismatch.

Selection Notes

Select this driver for designs requiring independent control of four LED channels with high current capacity. The boost topology allows operation with lower input voltages than the LED string forward voltage. Consider the TDFN-8 footprint for compact PCB layouts. Validate thermal management requirements given the 150°C shutdown threshold and ensure adequate heat dissipation for sustained 700 mA total load operations.

Part Context

This component belongs to the CAT4104 family of LED drivers from onsemi. The VP2 suffix indicates the specific TDFN-8 package variant. The part is categorized under LED Lighting Drivers and Driver ICs. It shares functional similarities with other multi-channel LED controllers but is distinct in its 175 mA per channel rating and 25 V output耐压 specification.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation. Cross-reference with onsemi's official replacement guide for equivalent performance specifications if direct substitution is required.