LM3509SDE/NOPB

LED Driver IC Overview

The LM3509SDE/NOPB is a high-efficiency boost LED driver IC from Texas Instruments, designed for white LEDs and OLED displays. It features dual current sinks with an output current of 30 mA per channel. The device operates within a supply voltage range of 2.7 V to 5.5 V and supports a maximum output voltage of 21 V. It utilizes a WSON-10 package and functions at a switching frequency of 1.27 MHz. The operational temperature range spans from -40°C to +85°C.

LED Driver IC Feature Summary

• Dual constant current sinks for driving multiple LED channels
• Integrated I2C control interface for configuration
• High efficiency boost topology optimized for LED applications

LED Driver IC Applications

• White LED lighting systems
• OLED display backlighting

LED Driver IC Procurement Notes

Verify the specific suffix 'SDE' against the manufacturer datasheet to confirm the exact package variant and tape-and-reel specifications. Ensure compatibility with I2C bus requirements in the target design. Confirm RoHS compliance status as indicated in official documentation before finalizing procurement orders.

LED Driver IC Selection Notes

Select this component when a compact solution for dual-channel LED driving is required. The WSON-10 package offers space efficiency. Verify that the input voltage range of 2.7 V to 5.5 V aligns with the system power supply. Ensure the load does not exceed the 21 V output limit or 30 mA per channel current rating.

LED Driver IC Part Context

This part belongs to the LM3509 series of LED drivers. It is distinct from other variants like the LM3509SDX by its specific package marking and reel configuration. The device is manufactured by Texas Instruments and falls under the category of LED lighting driver ICs.

LED Driver IC Replacement Considerations

Check for direct pin-to-pin replacements within the LM3509 family. Verify if alternative packages such as SD or SDX variants meet the mechanical constraints. Cross-reference electrical parameters to ensure equivalent performance in the specific application.