LP8545SQE/NOPB

$2.43

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

SKU:352a0292f05b Category: LED Drivers IC Brand: Texas Instruments

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Product introduction

LP8545SQE/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 LP8545SQE/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 LP8545SQE/NOPB

LP8545SQE/NOPB

LED Driver IC Overview

The LP8545SQE/NOPB is a high-efficiency LED backlight driver IC manufactured by Texas Instruments. It features a boost topology with six independent current mode outputs, each capable of delivering up to 50 mA. The device operates within an input voltage range of 2.7 V to 22 V and supports a maximum output voltage of 40 V. Adjustable switching frequencies include 156 kHz, 312 kHz, 625 kHz, and 1.25 MHz. It utilizes I2C and PWM control interfaces for regulation and dimming. The component is housed in a 24-WQFN package and functions reliably across a temperature range of -30°C to +85°C.

LED Driver IC Feature Summary

Six independent regulated current outputs designed for multi-string LED arrays
Integrated I2C interface for digital control and configuration
Supports PWM dimming for precise brightness adjustment
Adjustable switching frequency to optimize external component size

LED Driver IC Applications

LED backlight drivers for mobile devices
High-efficiency LED lighting systems
Portable electronic display illumination

LED Driver IC Procurement Notes

Verify the specific suffix 'SQE' against the manufacturer's official datasheet to confirm pinout and thermal pad specifications. Ensure the NOPB designation aligns with RoHS compliance requirements for your target market. Cross-reference the 24-WQFN package dimensions with your PCB footprint library to guarantee mechanical compatibility during assembly.

LED Driver IC Selection Notes

Select this component when designing systems requiring multiple independent LED channels from a single boost converter. The wide input voltage range accommodates various battery configurations. Consider the available switching frequencies to balance EMI performance against passive component size. Verify that the required channel current does not exceed the 50 mA limit per output.

LED Driver IC Part Context

This part belongs to the LP8545 series of LED lighting drivers from Texas Instruments. It is specifically engineered for applications demanding high efficiency and compact form factors. The SQE variant denotes a specific tape and reel packaging option suitable for automated surface-mount assembly processes.