LP8545SQ/NOPB

$2.43

Description：IC LED DRV RGLTR PWM 50MA 24WQFN
Series：-
Mfr：Texas Instruments
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:a761bec920c3 Category: LED Drivers IC Brand: Texas Instruments

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Product introduction

LP8545SQ/NOPB is listed in the LED Driver IC range at ChipApex. The manufacturer field lists Texas Instruments. Its product description is IC LED DRV RGLTR PWM 50MA 24WQFN. Review the specifications below when checking this part for your BOM.

LED Driver IC specifications for LP8545SQ/NOPB

Description：IC LED DRV RGLTR PWM 50MA 24WQFN
Series：-
Mfr：Texas Instruments
Package：Tape & Reel (TR),Cut Tape (CT)
Type：DC DC Regulator
Topology：Step-Up (Boost)
Internal Switch(s)：Yes
Number of Outputs：6
Voltage - Supply (Min)：2.7V
Voltage - Supply (Max)：22V
Voltage - Output：40V
Current - Output / Channel：50mA
Frequency：156kHz, 312kHz, 625kHz, 1250kHz
Dimming：PWM
Applications：Backlight
Operating Temperature：-30°C ~ 85°C (TA)
Mounting Type：Surface Mount
Package / Case：24-WFQFN Exposed Pad
Supplier Device Package：24-WQFN (4x4)
Grade：-
Qualification：-

LED Driver IC datasheet and documents for LP8545SQ/NOPB

LP8545SQ/NOPB

LED Driver IC Overview

The LP8545SQ/NOPB is a high-efficiency LED backlight driver IC from Texas Instruments, featuring a boost topology with six independent current-regulated outputs. It operates within an input voltage range of 2.7 V to 22 V and supports adjustable switching frequencies of 156 kHz, 312 kHz, 625 kHz, and 1.25 MHz. The device delivers up to 450 mA output current per channel and provides a maximum output voltage of 40 V. Packaged in a 24-WQFN (4x4) format, it functions reliably across a temperature range of -30°C to +85°C.

LED Driver IC Feature Summary

Supports I2C and PWM control interfaces for precise brightness regulation and system integration.
Integrates internal power switches to minimize external component count and board space.
Features adjustable switching frequency selection to optimize efficiency and EMI performance.

LED Driver IC Applications

LED backlight drivers for mobile phones and smartphones
Backlight systems for portable media players
LED illumination for automotive displays

LED Driver IC Procurement Notes

Verify the specific suffix against official datasheets to confirm package type and tape/reel specifications. Ensure the ordering part number matches the required thermal and electrical characteristics for your design. Confirm RoHS compliance status through manufacturer documentation before finalizing procurement.

LED Driver IC Selection Notes

Select this component when designing multi-zone or high-channel-count LED backlight systems requiring individual current regulation. Consider the 24-WQFN package for compact layouts. Evaluate the 450 mA per-channel capability against total LED string requirements. Verify that the 2.7 V minimum input voltage aligns with your battery or power supply architecture.

LED Driver IC Part Context

This device belongs to the LP8545 family of high-efficiency LED drivers designed primarily for mobile applications. It complements other TI solutions by offering multiple regulated outputs in a small footprint. The series focuses on maximizing battery life through efficient boost conversion and flexible dimming controls suitable for consumer electronics.