LT3596EUHG#PBF

LED Driver IC Overview

The LT3596EUHG#PBF is a DC-DC buck LED driver IC from Analog Devices Inc., housed in a 52-WFQFN (5x8) package with 39 leads and an exposed pad. It features three independent output channels, each capable of delivering up to 100mA. The device operates within a supply voltage range of 6V to 55V and supports switching frequencies between 200kHz and 1MHz. It integrates internal switches and provides digital PWM dimming capabilities. The component is rated for operation at junction temperatures from -40°C to 125°C.

LED Driver IC Feature Summary

• Integrates high-speed NPN current sources to drive multiple LEDs per channel
• Supports deep digital PWM dimming ratios for precise brightness control
• Includes internal power switches to minimize external component count
• Designed for non-isolated step-down topology applications

LED Driver IC Applications

• Backlighting systems
• Signage displays

LED Driver IC Procurement Notes

Verify the specific suffix #PBF indicates lead-free compliance and tube packaging when sourcing. Confirm the 52-QFN footprint matches the PCB layout requirements. Ensure the input voltage range aligns with the system's power supply specifications. Check for RoHS3 compliance status if required by environmental regulations. Validate the thermal performance under maximum load conditions.

LED Driver IC Selection Notes

Select this component for applications requiring three independent LED channels with regulated current. Consider the wide input voltage range suitable for automotive or industrial environments. Evaluate the thermal dissipation capabilities due to the QFN package design. Ensure the PWM dimming interface compatibility with the controlling microcontroller. Assess the space constraints against the 5x8mm package dimensions.

LED Driver IC Part Context

This part belongs to the LT3596 series of LED drivers designed for high-performance lighting applications. It is manufactured by Analog Devices Inc. under the Linear Technology brand heritage. The device is distinct from the LT3599, which offers four channels. It serves as a solution for driving white LEDs in complex lighting arrays.

LED Driver IC Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify pin-to-pin compatibility with other three-channel buck LED drivers if direct substitution is required. Consult manufacturer guidelines for any potential form-fit-function alternatives.