LP5521YQ/NOPB

$1.54

Description：IC LED DRVR RGLTR I2C 24WQFN
Series：-
Mfr：Texas Instruments
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:9be256ee609a Category: LED Drivers IC Brand: Texas Instruments

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Product introduction

LP5521YQ/NOPB is listed in the LED Driver IC range at ChipApex. The manufacturer field lists Texas Instruments. Its product description is IC LED DRVR RGLTR I2C 24WQFN. Review the specifications below when checking this part for your BOM.

LED Driver IC specifications for LP5521YQ/NOPB

Description：IC LED DRVR RGLTR I2C 24WQFN
Series：-
Mfr：Texas Instruments
Package：Tape & Reel (TR),Cut Tape (CT)
Type：DC DC Regulator
Topology：Switched Capacitor (Charge Pump)
Internal Switch(s)：Yes
Number of Outputs：3
Voltage - Supply (Min)：2.7V
Voltage - Supply (Max)：5.5V
Voltage - Output：4.55V
Current - Output / Channel：25.5mA
Frequency：1.25MHz
Dimming：I2C
Applications：Backlight
Operating Temperature：-30°C ~ 85°C (TA)
Mounting Type：Surface Mount
Package / Case：24-VFQFN Exposed Pad
Supplier Device Package：24-WQFN (5x4)
Grade：-
Qualification：-

LED Driver IC datasheet and documents for LP5521YQ/NOPB

LP5521YQ/NOPB

LED Driver IC Overview

The LP5521YQ/NOPB is a programmable LED lighting driver IC from Texas Instruments, designed for high-performance RGB and white LED applications. It features three independent output channels with an integrated boost converter topology to drive LEDs efficiently. The device incorporates internal program memory for flexible configuration without external components. Key electrical parameters include a supply voltage range of 2.7V to 5.5V, a maximum output current of 25.5mA per channel, and an operating frequency of 1.25MHz. It supports I2C control for dimming and operates within a temperature range of -30°C to +85°C.

LED Driver IC Feature Summary

Integrates a boost converter for efficient LED driving
Features internal programmable memory for configuration
Supports I2C interface for digital control and dimming

LED Driver IC Applications

RGB backlight systems
White LED lighting modules
Portable electronic displays

LED Driver IC Procurement Notes

Verify the specific suffix 'YQ' indicates automotive grade qualification when required by the application environment. Confirm that the QFN-24 package matches the PCB footprint design. Ensure the I2C address settings align with the system controller requirements before finalizing the procurement order.

LED Driver IC Selection Notes

Select this component for applications requiring precise current control across multiple LED channels with minimal external circuitry. The integrated boost converter simplifies power management compared to linear drivers. Consider the thermal performance in the QFN-24 package when designing the heat dissipation strategy for high-brightness implementations.

LED Driver IC Part Context

This part belongs to the LP5521 series of LED drivers, which are optimized for complex lighting scenarios. The series distinguishes itself through programmability and integrated power stages. The LP5521YQ variant specifically targets automotive or ruggedized environments due to its extended temperature rating and reliability standards inherent in the 'YQ' designation.