LTC3783IDHD#PBF

LED Driver IC Overview

The LTC3783IDHD#PBF is a current mode LED driver and switching controller manufactured by Analog Devices Inc. It supports Boost, Flyback, and SEPIC topologies with an input voltage range of 3 V to 36 V. The device drives an N-channel power MOSFET and an N-channel load PWM switch. Key electrical parameters include a switching frequency range of 20 kHz to 1 MHz, a quiescent supply current of 1.5 mA, and a shutdown feature. It operates within a temperature range of -40°C to +125°C TJ and is housed in a 16-lead DFN package.

LED Driver IC Feature Summary

• Supports multiple converter topologies including Boost, Flyback, and SEPIC configurations for versatile power management applications.
• Integrates current mode control architecture to drive both an external N-channel power MOSFET and an N-channel load PWM switch.
• Provides flexible dimming capabilities through analog and low-frequency PWM dimming inputs for precise LED brightness control.

LED Driver IC Applications

• LED lighting systems requiring Buck-Boost or SEPIC regulation
• Automotive lighting circuits with wide input voltage variations
• General purpose DC-DC conversion using Flyback or Boost architectures

LED Driver IC Procurement Notes

Verify the specific suffix #PBF indicates tube packaging when ordering. Confirm availability status as distribution channels may report limited stock or restricted supply conditions. Ensure the selected variant matches the required operating temperature range and package type for your PCB design constraints.

LED Driver IC Selection Notes

Select this component for designs requiring a single-inductor solution with combined LED driving and voltage regulation capabilities. Consider the 16-DFN package size for space-constrained layouts. Evaluate the 20 kHz to 1 MHz switching frequency range against EMI requirements and external component selection needs.

LED Driver IC Part Context

This part belongs to the LTC3783 family of current mode controllers from Analog Devices. It is distinct from standard buck regulators like the LTC3835, focusing instead on multi-topology flexibility and LED driver integration. The IDHD suffix denotes industrial temperature rating and DFN EP packaging.

LED Driver IC Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing gate drivers and inductor specifications if cross-referencing with other Analog Devices LED controllers.