LT3965IFE-1#PBF

LED Driver IC Overview

The LT3965IFE-1#PBF is an eight-channel LED bypass switching device designed for dimming individual LEDs in a string using a common current source. It features a buck/boost DC-DC regulator topology with I2C and PWM dimming interfaces. The device operates within a supply voltage range of 8V to 60V, supporting output currents up to 500mA per channel. It functions at a switching frequency of 195Hz and is rated for operating temperatures between -40°C and +125°C. The component is housed in a 28-TSSOP-EP package.

LED Driver IC Feature Summary

• Eight individually addressable LED bypass channels for precise dimming control
• Integrated buck and boost DC-DC regulator topology for flexible power management
• Supports both I2C serial interface and PWM dimming signals for system integration

LED Driver IC Applications

• Matrix LED lighting systems requiring individual channel control
• Automotive interior and exterior LED illumination arrays
• Architectural lighting applications with complex dimming profiles

LED Driver IC Procurement Notes

Verify the specific suffix (#PBF) indicates lead-free compliance and tube packaging when sourcing. Confirm availability status as distribution may vary by region. Ensure the selected variant matches the required thermal performance and pinout configuration for the target PCB layout. Cross-reference the manufacturer's latest documentation for any updates to the electrical characteristics or recommended operating conditions.

LED Driver IC Selection Notes

Select this component when an application requires independent dimming of multiple LEDs driven by a single current source. The integrated buck-boost regulator simplifies design by handling input voltage variations relative to LED forward voltage drops. Consider the 28-TSSOP-EP package for thermal dissipation requirements and board space constraints. Verify that the I2C interface speed and PWM frequency align with the system controller capabilities.

LED Driver IC Part Context

The LT3965 belongs to Analog Devices' family of specialized LED drivers focused on matrix configurations. Unlike standard constant current regulators, this device integrates bypass switches to manage individual LED states within a shared string. This architecture reduces component count and complexity compared to discrete solutions, offering a compact approach for high-density lighting designs requiring granular control over each light element.

LED Driver IC Replacement Considerations

The LT3965IFE#PBF is a related variant within the same series. Verify functional equivalence regarding the absence of the '-1' designation in datasheets before substitution. Other parts in the LT3965 family may offer different channel counts or interface options. Always consult the official datasheet to confirm pin compatibility and electrical parameter alignment.