CAT3636HV3-GT2

Overview

The CAT3636HV3-GT2 is an LED lighting driver IC from onsemi, designed for quad-mode applications. It features six output channels and utilizes a charge pump topology to drive LEDs. The device operates within an input voltage range of 2 V to 5.5 V and supports a maximum output current of 1 A per channel. It functions at a switching frequency of 800 kHz and provides an adjustable output voltage up to 7 V. The component is housed in a TQFN-16 package and is rated for operation between -40°C and +85°C.

Feature Summary

• Integrates six independent output channels for multi-zone LED control
• Employs internal charge pump circuitry for efficient voltage boosting
• Supports I2C interface for digital configuration and dimming control

Applications

• LED backlighting systems
• General illumination modules
• Portable electronic display drivers

Procurement Notes

This component has reached end-of-life status as indicated by the product discontinuance notice dated Q2 2014. Availability is restricted, and sourcing new units may be difficult. Verify current stock levels with authorized distributors or check for surplus market options. Ensure that any available inventory matches the specific GT2 suffix requirements for packaging and handling.

Selection Notes

Select this part for designs requiring high-channel count LED driving in compact form factors. The TQFN-16 package offers thermal efficiency suitable for space-constrained PCB layouts. Consider the 800 kHz switching frequency when designing external components to balance size and noise. Verify compatibility with the system's I2C bus speed and address configuration before integration.

Part Context

The CAT3636 series belongs to onsemi's portfolio of LED lighting driver ICs. These devices are engineered for high-efficiency power management in portable and industrial lighting. The HV3 variant typically denotes specific performance characteristics or pinout configurations within the broader family. This model represents a specialized solution for complex LED arrays requiring precise current regulation.

Replacement Considerations

Due to the discontinued status, direct substitutes must be sourced carefully. Review datasheets for equivalent channel counts, current ratings, and package dimensions. Verify that alternative parts support the required I2C communication protocol and operate within the same voltage constraints to ensure functional parity.