LT3491ESC8

LED Driver IC Overview

The LT3491ESC8 is a white LED driver IC manufactured by Analog Devices Inc. It utilizes a boost topology to drive white LEDs, featuring an internal Schottky diode. The device operates within an input voltage range of 2.5 V to 12 V and delivers an output current of 2 mA. It supports a maximum output voltage of 27 V and functions at a working frequency of 2.3 MHz. The component is housed in an SC-70-8 package and is rated for operation between -40°C and +85°C.

LED Driver IC Feature Summary

• Integrates an internal Schottky diode to simplify circuit design.
• Provides regulated constant current output for driving white LEDs.
• Supports wide input voltage ranges suitable for battery-powered applications.

LED Driver IC Applications

• White LED lighting systems
• Battery-powered portable devices

LED Driver IC Procurement Notes

Verify the specific manufacturer part number against official Analog Devices documentation to ensure accuracy. Confirm that the SC-70-8 package matches your PCB layout requirements. Check the operating temperature range specifications to ensure compatibility with your intended environmental conditions. Validate the electrical parameters against your system design needs before procurement.

LED Driver IC Selection Notes

Select this component when a compact solution for driving white LEDs from a single-cell lithium battery or similar power source is required. The integrated Schottky diode reduces external component count. Ensure the application demands a 2.3 MHz switching frequency and fits within the thermal constraints of the SC-70-8 package.

LED Driver IC Part Context

This part belongs to the LT3491 series of LED drivers. It is designed specifically for applications requiring efficient power conversion from low-voltage sources to drive multiple series-connected LEDs. The series is known for its fixed-frequency operation and compact packaging options.

LED Driver IC Replacement Considerations

Consult official Analog Devices documentation for verified substitute part numbers. Cross-reference package dimensions and electrical characteristics to ensure functional equivalence if considering alternative components.