FAN5701UC20X

Overview

The FAN5701UC20X is a six-channel LED driver IC from onsemi, designed for high-efficiency lighting applications. It features an integrated charge pump topology to support up to six individual LED strings, each capable of delivering up to 20 mA of output current. The device operates within a supply voltage range of 2.7 V to 5.5 V and supports PWM dimming frequencies between 900 kHz and 1.5 MHz. It is housed in a UMLP-16 package and functions reliably across an operating temperature range of -40°C to +85°C.

Feature Summary

• Integrates a switched capacitor charge pump to drive multiple LED strings without external inductors
• Supports independent control of up to six LED channels with adjustable output current
• Enables precise brightness regulation through high-frequency PWM dimming capabilities

Applications

• Backlighting systems for mobile devices and displays
• General solid-state lighting fixtures requiring multi-string LED arrays
• Portable electronic equipment with space-constrained power management needs

Procurement Notes

Verify the specific ordering suffix and revision level against the official onsemi datasheet to ensure compatibility with your design requirements. Confirm that the component status aligns with your production timeline, as availability may vary by region and distributor. Always check for RoHS compliance documentation and ECAD model availability before finalizing procurement plans.

Selection Notes

Select this component when designing circuits that require driving multiple low-current LED strings from a single supply rail. The integrated charge pump simplifies board layout by eliminating the need for bulky inductors. Ensure the input voltage range matches your system's power supply and that the thermal performance of the UMLP-16 package suits your enclosure constraints.

Part Context

The FAN5701UC20X belongs to onsemi’s portfolio of LED lighting drivers, originally developed under Fairchild Semiconductor. It is part of a family of solutions aimed at optimizing power efficiency in portable and fixed lighting applications. The device leverages onsemi’s expertise in power management to provide compact, high-performance LED driving capabilities for modern electronics.

Replacement Considerations

Check for direct pin-to-pin replacements within the FAN5701 series or compatible onsemi LED drivers. Verify functional equivalence regarding channel count, current capability, and control interface before substituting.