LP3944ISQ/NOPB

LED Driver IC Overview

The LP3944ISQ/NOPB is an RGB/White/Blue 8-LED Fun Light Driver manufactured by Texas Instruments. It features an internal precision oscillator and independently drives eight LEDs with a maximum output current of 25 mA per channel. The device operates on a supply voltage range of 2.3 V to 5.5 V, with a typical quiescent current of 0.35 mA. It supports I2C and SMBus interfaces for dimming control and includes an active low reset function.

LED Driver IC Feature Summary

• Independently drives eight LEDs configured in parallel
• Integrates an internal precision oscillator for timing
• Supports digital control via I2C and SMBus interfaces

LED Driver IC Applications

• Camera flash systems
• RGB lighting effects
• White and blue LED illumination

LED Driver IC Procurement Notes

Verify the specific package type and tape-and-reel specifications against the official datasheet before procurement. Confirm that the operating temperature range meets the environmental requirements of the target application. Ensure compatibility with the host controller's I2C or SMBus logic levels.

LED Driver IC Selection Notes

Select this component when independent control of multiple LED channels is required within a compact form factor. The integrated oscillator reduces external component count compared to solutions requiring external timing circuits. Consider the 25 mA per channel limit when designing for high-brightness applications.

LED Driver IC Part Context

This part belongs to the LP3944 series of LED drivers designed for portable electronics. It is distinct from linear regulators like the LM3940 or clock synthesizers like the LMK04001 found in related product listings. The device focuses specifically on multi-channel LED management rather than general power regulation or signal processing.

LED Driver IC Replacement Considerations

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