LM3565TLX/NOPB

LED Driver IC Overview

The LM3565TLX/NOPB is a fixed-frequency, current-mode synchronous boost converter designed to drive two series flash LEDs at 930 mA. It operates with an input voltage range of 2.5 V to 5.5 V and features a switching frequency of 4 MHz. The device supports PWM dimming and includes an LED thermal monitor for protection. It is housed in a DSBGA-16 package and functions within a temperature range of -30°C to +85°C.

LED Driver IC Feature Summary

• Synchronous boost topology optimized for high-current flash LED applications
• Integrated LED thermal monitor for enhanced safety
• Supports PWM dimming control

LED Driver IC Applications

• Mobile phone camera flash systems
• Portable electronic devices requiring high-intensity lighting
• Compact LED driver designs

LED Driver IC Procurement Notes

Verify the specific suffix (TLX vs TLE) against the official datasheet to ensure correct packaging and pinout compatibility. Confirm that the DSBGA-16 package dimensions match the target PCB footprint. Ensure the design accounts for the 4 MHz switching frequency regarding EMI constraints and component selection.

LED Driver IC Selection Notes

Select this component when driving two series-connected flash LEDs from a single-cell lithium-ion battery source. The 4 MHz frequency allows for smaller passive components compared to lower-frequency alternatives. Verify that the required peak current of 930 mA aligns with the LED specifications and thermal management capabilities of the system.

LED Driver IC Part Context

This part belongs to the Texas Instruments LM3565 family of high-current flash LED drivers. It is specifically engineered for mobile applications where space is limited and high brightness is required. The NOPB suffix indicates a lead-free and RoHS-compliant version of the standard LM3565 device.

LED Driver IC Replacement Considerations

Check for direct substitutes such as the LM3565TLE/NOPB, ensuring package and electrical parameters are identical. Verify availability of alternative drivers with similar 930 mA output capability and 4 MHz operation if supply chain constraints exist.