LT3952EFE#PBF

LED Driver IC Overview

The LT3952EFE#PBF is a single-output boost LED driver IC from Analog Devices Inc., designed for high-performance LED lighting applications. It features an integrated 4A switch current capability and supports output voltages up to 60V. The device operates within a wide input supply voltage range of 3V to 42V and utilizes a switching frequency adjustable between 215kHz and 3MHz. It employs True Color PWM technology for precise dimming control, supporting both analog and pulse-width modulation methods. The component is housed in a 28-TSSOP package with an exposed pad for enhanced thermal performance.

LED Driver IC Feature Summary

• Integrates a high-current 4A internal switch for efficient power handling in boost topologies
• Supports True Color PWM dimming technology to maintain consistent color temperature across dimming ranges
• Offers flexible switching frequency adjustment from 215kHz to 3MHz to optimize external component size and EMI
• Provides dual dimming control options including analog and PWM interfaces for system integration flexibility

LED Driver IC Applications

• Automotive exterior and interior LED lighting systems
• High-brightness LED display backlights
• General-purpose LED illumination drivers requiring precise color regulation

LED Driver IC Procurement Notes

Verify the specific suffix #PBF indicates lead-free tape and reel packaging compatible with standard surface mount assembly processes. Confirm that the 28-TSSOP-EP package dimensions match the target PCB footprint design. Ensure the selected variant meets the required operating temperature range of -40°C to 125°C for the intended environment. Cross-reference the manufacturer part number with official Analog Devices documentation to confirm current production status and any recent product change notifications.

LED Driver IC Selection Notes

Select this component when a single-channel boost topology is required for driving high-power LEDs with integrated switching capabilities. The wide input voltage range suits battery-powered or variable supply applications. Consider the thermal requirements of the exposed pad package for high-current designs. Evaluate the need for True Color PWM functionality if maintaining chromaticity during dimming is critical. Compare against other members of the LT3952 family if different pinouts or additional channels are needed.

LED Driver IC Part Context

This device belongs to the LT3952 series of LED drivers, which are engineered for automotive and industrial lighting applications. The series emphasizes high efficiency and precise current regulation. The EFE#PBF designation specifies the commercial/industrial grade version in a TSSOP package. It complements other PMIC solutions by offering a dedicated solution for high-voltage LED strings without requiring external MOSFETs.

LED Driver IC Replacement Considerations

Direct replacements include other variants within the LT3952 family such as LT3952IFE#PBF or LT3952AIFE#TRPBF, depending on required packaging and temperature grades. Verify compatibility regarding pinout and thermal characteristics before substitution.