LP3958TL/NOPB

LED Driver IC Overview

The LP3958TL/NOPB is a lighting management unit designed for portable applications, manufactured by Texas Instruments. It integrates five separately controllable LED drivers to support display backlight and keypad illumination. The device incorporates a step-up DC-DC regulator capable of delivering up to 1.15A switch current. Control interfaces include I2C dimming functionality. The component operates within a temperature range of -40°C to +125°C and utilizes a DSBGA-25 package.

LED Driver IC Feature Summary

• Integrates five individually addressable LED driver channels for flexible lighting control
• Includes an integrated step-up DC-DC regulator for efficient power conversion
• Supports digital brightness adjustment via I2C communication interface

LED Driver IC Applications

• Portable electronic device display backlights
• Keypad LED illumination systems
• Mobile phone lighting modules

LED Driver IC Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to ensure compatibility with required packaging options such as cut tape or reel configurations. Confirm that the device status aligns with design requirements, noting that certain variants may carry recommendations regarding new design implementations. Cross-reference the marking code SJHB with datasheet specifications to validate authenticity and traceability during the sourcing process.

LED Driver IC Selection Notes

Select this component when designing portable systems requiring multiple independently controlled LED sources driven by a single IC. The integrated boost converter simplifies power architecture by eliminating external inductors for basic operation. Ensure the application voltage requirements match the regulator capabilities and verify that the I2C interface fits the system controller constraints. Evaluate thermal performance within the specified operating temperature range for the target enclosure.

LED Driver IC Part Context

This part belongs to the LP3958 series of lighting management units from Texas Instruments. These devices are engineered specifically for mobile and handheld electronics where space efficiency and power management are critical. The series consolidates multiple driver functions into a compact footprint, reducing bill-of-materials complexity compared to discrete solutions.

LED Driver IC Replacement Considerations

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