LM3502ITLX-16/NOPB

Overview

The LM3502ITLX-16/NOPB is a dual-output LED driver IC manufactured by Texas Instruments, designed for step-up converter applications in white LED systems. It operates with an input voltage range of 2.5V to 5.5V and delivers up to 400mA per channel. The device features a switching frequency of 1MHz and supports PWM dimming. It is housed in a DSBGA-9 package and functions within a temperature range of -40°C to +85°C.

Feature Summary

• Dual-output synchronous boost topology for independent LED channel control
• Integrated high-side current sensing for precise constant current regulation
• Supports pulse-width modulation (PWM) dimming for brightness adjustment

Applications

• White LED backlighting for mobile devices
• Portable electronic display illumination
• Compact LED lighting modules requiring dual-channel drive

Procurement Notes

Verify the specific suffix '16' against the manufacturer's latest datasheet to confirm output voltage specifications and internal switch ratings. Ensure the DSBGA-9 footprint matches the target PCB design. Confirm RoHS compliance status through official documentation before finalizing procurement orders.

Selection Notes

Select this component when dual-channel LED driving is required within a low-voltage supply environment. Consider the 1MHz switching frequency for inductor size optimization. Evaluate thermal performance requirements given the small package size and potential power dissipation during continuous operation at maximum current loads.

Part Context

This part belongs to the LM3502 series of LED drivers from Texas Instruments. It is specifically engineered for portable applications where space constraints and efficiency are critical. The NOPB suffix indicates lead-free packaging compliant with environmental standards, distinguishing it from older non-compliant variants.

Replacement Considerations

LM3502ITL-16/NOPB is a compatible variant with identical electrical characteristics but different reel packaging configuration.