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LP50xx 9-, 12-Channel, 12-Bit PWM Ultra-low Quiescent Current

I

2

C RGB LED Drivers

1 Features

•Operating voltage range:

–V

CC

range: 2.7 V to 5.5 V

–EN, SDA, and SCL pins compatible with

1.8-V, 3.3-V, and 5-V power rails

–Output maximum voltage: 6 V

•12 Constant-current sinks with high precision

–25.5 mA Maximum per channel with V

CC

in full

range

–35 mA Maximum per channel when V

CC

≥ 3.3 V

–Device-to-device error: ±5%; channel-to-

channel error: ±5%

•Ultra-low quiescent current:

–Shutdown mode: 1 µA (maximum) with EN low

–Power-saving mode: 10 µA (typical) 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

•Up to 400-kHz fast-mode I

2

C speed

2 Applications

LED lighting, indicator lights, and fun lights for:

•Smart speaker (with voice assistant)

•Smart home appliances

•Video doorbell

•Electronic smart lock

•Smoke and heat detector

•STB and DVR

•Smart router

•Handheld device

3 Description

In smart homes and other applications that use

human-machine-interaction, high-performance RGB

LED drivers are required. LED animation effects such

as flashing, breathing and chasing that greatly

improves user experience, and minimal system noise

is essential.

The LP50xx device is an 9- or 12-channel constant

current sink LED driver. The LP50xx device includes

integrated color mixing and brightness control, and

pre-configuration simplifies the software coding

process. Integrated 12-bit, 29-kHz PWM generators

for each channel enable smooth, vivid color for LEDs,

and eliminate audible noise.

Device Information

PART NUMBER

(1)

PACKAGEBODY SIZE (NOM)

LP5009

WQFN (20)3.00 mm × 3.00 mm

LP5012

LP5009

TSSOP (24)7.80 mm × 4.40 mm

LP5012

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

the end of the data sheet.

EN

SDA

SCL

OUT0

OUT1

OUT11

MCU

VCC

GND

LP5012

ADDR0

OUT2

VLED

VCC

IREF

OUT10

OUT09

VCAP

ADDR1

CVCAP

RIREF

VMCU

CVCC

Simplified Schematic

www.ti.com

LP5009, LP5012

SLVSEH2B – MAY 2019 – REVISED AUGUST 2020

Copyright ©2020 Texas Instruments Incorporated

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Product Folder Links: LP5009LP5012

LP5009, LP5012

SLVSEH2B – MAY 2019 – REVISED AUGUST 2020

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. PRODUCTION DATA.

Produktspecifikationer