FAN5609MTCX

Overview

The FAN5609MTCX is an LED driver IC featuring a DC-DC charge pump topology with four independent outputs. It operates within a supply voltage range of 2.7V to 5.5V and delivers a regulated output current of 20mA per channel. The device supports PWM dimming control and functions at a switching frequency of 1MHz. Designed for surface-mount installation, it utilizes a 16-VQFN package with a bare pad (16-MLP, 4x4). The component maintains operational reliability across a temperature range of -40°C to +85°C.

Feature Summary

• Integrates an adaptive charge pump DC/DC converter to maintain stable LED current regulation across varying input voltages.
• Employs switch reconfiguration and fractional switching techniques to optimize efficiency throughout the entire operating input voltage range.
• Provides four independent regulated current channels suitable for multi-segment backlight applications.

Applications

• Backlight illumination for portable electronic devices
• LED lighting drivers requiring battery-powered operation
• Multi-segment display backlighting systems

Procurement Notes

Verify component authenticity through authorized onsemi distributors or certified partners. Confirm that the specific suffix matches the required package variant. Check for RoHS compliance documentation as required by project specifications. Ensure storage conditions adhere to moisture sensitivity level guidelines prior to assembly. Validate part markings against official datasheet identifiers to prevent counterfeit introduction.

Selection Notes

Select this component when designing circuits requiring precise current regulation for multiple LEDs from a single power source. Consider the 2.7V to 5.5V input range compatibility with standard battery cells. Evaluate the 16-MLP footprint constraints during PCB layout. Assess thermal management requirements given the surface-mount package type and operating temperature limits.

Part Context

This model belongs to the FAN5609 family of LED drivers manufactured by onsemi. It shares core functional characteristics with variants such as the FAN5609MPX, differing primarily in packaging configuration. The series is designed for high-efficiency power management in mobile and portable applications where space and energy conservation are critical design factors.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify cross-references with manufacturer engineering support if alternative sourcing is required due to obsolescence status.