LM3537TME/NOPB

LED Driver IC Overview

The LM3537TME/NOPB is an eight-channel white LED driver IC manufactured by Texas Instruments. It integrates a charge pump and four low-dropout regulators to support complex backlight arrays. The device operates from a single supply voltage ranging from 2.7 V to 5.5 V. It provides individual current regulation for each channel with a maximum output current of 25 mA per channel. Control interfaces include I2C and PWM dimming capabilities. The component is housed in a 30-pin DSBGA package, designed for space-constrained portable electronic applications requiring precise multi-zone lighting control.

LED Driver IC Feature Summary

• Integrates an eight-channel constant current source with independent regulation
• Includes a charge pump and four integrated LDOs for flexible power management
• Supports digital I2C control and analog PWM dimming functions

LED Driver IC Applications

• Mobile phone LCD backlight systems
• Tablet computer display illumination
• Portable media player screen drivers

LED Driver IC Procurement Notes

Verify the specific suffix 'NOPB' confirms lead-free compliance and RoHS standards as per the manufacturer's datasheet. Confirm the 'TM' variant designation matches the required pinout and thermal characteristics for the target PCB layout. Cross-reference the full part number against the latest Texas Instruments documentation to ensure no functional changes have occurred due to product lifecycle updates or revision history.

LED Driver IC Selection Notes

Select this component when designing systems requiring independent control of multiple LED zones without external discrete drivers. The integrated power management reduces bill of materials count compared to solutions using separate boost converters and linear regulators. Ensure the application environment supports the required I2C bus speed and that the thermal dissipation requirements of the DSBGA package are met within the final enclosure design constraints.

LED Driver IC Part Context

This part belongs to the LM3537 series of LED lighting drivers. It is distinct from other Texas Instruments temperature sensors like the LM35DZ or USB switches like the LM3525. The series focuses on high-density integration for display backlights, combining power conversion and regulation into a single small-footprint solution suitable for modern handheld devices.

LED Driver IC Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.