EN

SDA

SCL

OUT0

OUT1

OUT23

MCU

VCC

GND

LP5024

ADDR0

OUT2

VLED

IREF

OUT22

OUT21

VCAP

ADDR1

VCC

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Folder

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An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. ADVANCE INFORMATION for pre-production products; subject to

change without notice.

LP5018, LP5024

SLVSEB8 – MARCH 2018

1

1 Features

1

•

Operating Voltage Range:

–

–

EN, SDA and SCL Pins Compatible With 1.8-

V, 3.3-V, and 5-V Power Rails

–

Output Maximum Voltage: 6 V

•

24 Constant-Current Sinks With High Precision

–

Full Range

–

V

–

Device-to-Device Error: ±7%; Channel-to-

Channel Error: ±7%

•

Ultralow Quiescent Current:

–

Shutdown Mode: 1 µA (Max.) With EN Low

–

Power Saving Mode: 10 µA (Typ.) With EN

High and All LEDs Off for > 30 ms

•

Integrated 12-Bit, 29-kHz PWM Generator for

Each Channel:

–

Independent Color-Mixing Register Per

Channel

–

Independent Brightness-Control Register Per

RGB LED Module

–

Optional Logarithmic- or Linear-Scale

Brightness Control

–

Integrated 3-Phase PWM-Shifting Scheme

•

3 Programmable Banks (R, G, B) for Easy

Software Control of Each Color

•

2 External Hardware Address Pins Allow

Connecting up to 4 Devices

•

Broadcast Slave Address Allows Configuring

Multiple Devices Simultaneously

•

Auto-Increment Allows Writing or Reading

Consecutive Registers Within One Transmission

•

2 Applications

LED Lighting, Indicator Lights, and Fun Lights for:

•

Smart Speaker

•

Smart Home Appliance

•

Doorbell

•

Electric Lock

•

Smoke Detector

•

Set-Top Box

•

Smart Router

•

Handheld Device

3 Description

In smart homes and other human-machine-interaction

LED-driver applications, the performance demand for

multi-channel RGB LED drivers is increasing to

achieve

great

user

experiences

like

blinking,

breathing, and chasing LED-animation effects.

The LP50xx device is an 18- or 24-channel constant-

current-sink LED driver. The LP50xx device improves

the user experience in color mixing and brightness

control, from both live effects and coding efforts. The

optimized performance for RGB LEDs makes it a

potential

choice

for

human-machine-interaction

applications.

Device Information(1)

PART NUMBER

PACKAGE

BODY SIZE (NOM)

LP5018

VQFN (32)

4 mm × 4 mm

LP5024

(1) For all available packages, see the orderable addendum at

the end of the data sheet.

Simplified Schematic