LT3796IFE#PBF

LED Driver IC Overview

The LT3796IFE#PBF is a DC/DC controller designed for constant-current and constant-voltage regulation, specifically intended for driving LEDs. It features dual current sensing capabilities and supports input supply voltages from 3 V to 100 V. The device operates within a switching frequency range of 100 kHz to 1 MHz and accommodates junction temperatures between -40°C and +125°C. It provides analog and PWM dimming support, with the PWM input enabling LED dimming ratios up to 3000:1. Packaged in a TSSOP-28 surface-mount case, it integrates protection features suitable for high-power and high-voltage LED applications.

LED Driver IC Feature Summary

• Dual current sensing architecture for precise regulation
• Supports both constant-current and constant-voltage modes
• Enables high-ratio PWM dimming control

LED Driver IC Applications

• High power LED lighting systems
• High voltage LED driver circuits
• Dual string LED configurations
• Battery powered LED modules
• Supercapacitor based lighting units

LED Driver IC Procurement Notes

Verify component authenticity through authorized Analog Devices distributors or certified partners. Confirm RoHS compliance status via official documentation. Check for recent Product Change Notifications (PCN) regarding manufacturing updates. Ensure the specific suffix matches design requirements. Validate availability status as supply may be limited.

LED Driver IC Selection Notes

Select this controller when dual current sensing is required for balanced multi-string LED loads. Consider the 100 V maximum supply limit for high-voltage architectures. Evaluate the 100 kHz to 1 MHz frequency range against EMI constraints. Ensure thermal management supports the specified junction temperature range. Verify compatibility with external MOSFETs for the target power level.

LED Driver IC Part Context

This component belongs to the LT3796 family of DC/DC controllers manufactured by Analog Devices. It is categorized under battery management and LED drivers within the PMIC segment. The device complements other high-voltage regulators by offering specialized constant-current and constant-voltage control loops tailored for complex LED topologies.

LED Driver IC Replacement Considerations

Consult official Analog Devices substitution guides for verified alternatives. Cross-reference pinouts and electrical specifications before replacing. Ensure any substitute maintains dual current sensing functionality if required by the design.

LED Driver IC FAQ

What dimming methods are supported by the LT3796IFE#PBF?

The device supports both analog and PWM dimming. The PWM input allows for LED dimming ratios of up to 3000:1.

Can this controller operate with supercapacitors?

Yes, the LT3796IFE#PBF is suitable for applications involving batteries and supercapacitors due to its wide input voltage range and regulation capabilities.