전원 관리 LED 드라이버 RGB LED 드라이버

LP5024

활성

24채널 I2C 정전류 RGB LED 드라이버

제품 상세 정보

Number of channels 24 LED current per channel (mA) 35 LED configuration Parallel Program memory No Topology Current Sink Programmable ramp control No Vin (min) (V) 2.7 Vin (max) (V) 5.5 Iout (max) (A) 0.84 Features Constant current, Current control, I2C control, Power-save mode Iq (typ) (mA) 0.01 Shutdown current (ISD) (typ) (µA) 0.2 Operating temperature range (°C) -40 to 85 Rating Catalog
Number of channels 24 LED current per channel (mA) 35 LED configuration Parallel Program memory No Topology Current Sink Programmable ramp control No Vin (min) (V) 2.7 Vin (max) (V) 5.5 Iout (max) (A) 0.84 Features Constant current, Current control, I2C control, Power-save mode Iq (typ) (mA) 0.01 Shutdown current (ISD) (typ) (µA) 0.2 Operating temperature range (°C) -40 to 85 Rating Catalog
VQFN (RSM) 32 16 mm² 4 x 4
  • Operating voltage range:
    • VCC range: 2.7V to 5.5V
    • EN, SDA, and SCL pins compatible with 1.8V, 3.3V, and 5V power rails
    • Output maximum voltage: 6V
  • 24 constant-current sinks with high precision
    • 25.5mA maximum per channel with VCC in full range
    • 35mA maximum per channel when VCC ≥ 3.3V
    • Device-to-device error: ±7%; channel-to-channel error: ±7%
  • Ultralow quiescent current:
    • Shutdown mode: 1µA (maximum) with EN low
    • Power saving mode: 10µA (typical) with EN high and all LEDs off for > 30ms
  • Integrated 12-bit, 29kHz 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 400kHz fast-mode I2C speed
  • Operating voltage range:
    • VCC range: 2.7V to 5.5V
    • EN, SDA, and SCL pins compatible with 1.8V, 3.3V, and 5V power rails
    • Output maximum voltage: 6V
  • 24 constant-current sinks with high precision
    • 25.5mA maximum per channel with VCC in full range
    • 35mA maximum per channel when VCC ≥ 3.3V
    • Device-to-device error: ±7%; channel-to-channel error: ±7%
  • Ultralow quiescent current:
    • Shutdown mode: 1µA (maximum) with EN low
    • Power saving mode: 10µA (typical) with EN high and all LEDs off for > 30ms
  • Integrated 12-bit, 29kHz 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 400kHz fast-mode I2C speed

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 greatly improve user experience, and minimal system noise is essential.

The LP50xx device is an 18- or 24-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, 29kHz PWM generators for each channel enable smooth, vivid color for LEDs, and eliminate audible noise.

The LP50xx device controls each LED output with a 12-bit PWM resolution at 29kHz switching frequency, which helps achieve a smooth dimming effect and eliminates audible noise. The independent color mixing and intensity control registers make the software coding straightforward. When targeting a fade-in, fade-out type breathing effect, the global R, G, B bank control reduces the microcontroller loading significantly. The LP50xx device also implements a PWM phase-shifting function to help reduce the input power budget when LEDs turn on simultaneously.

The LP50xx device implements an automatic power-saving mode to achieve ultralow quiescent current. When channels are all off for 30ms, the device total power consumption is down to 10µA, which makes the LP50xx device a potential choice for battery-powered end equipment.

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 greatly improve user experience, and minimal system noise is essential.

The LP50xx device is an 18- or 24-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, 29kHz PWM generators for each channel enable smooth, vivid color for LEDs, and eliminate audible noise.

The LP50xx device controls each LED output with a 12-bit PWM resolution at 29kHz switching frequency, which helps achieve a smooth dimming effect and eliminates audible noise. The independent color mixing and intensity control registers make the software coding straightforward. When targeting a fade-in, fade-out type breathing effect, the global R, G, B bank control reduces the microcontroller loading significantly. The LP50xx device also implements a PWM phase-shifting function to help reduce the input power budget when LEDs turn on simultaneously.

The LP50xx device implements an automatic power-saving mode to achieve ultralow quiescent current. When channels are all off for 30ms, the device total power consumption is down to 10µA, which makes the LP50xx device a potential choice for battery-powered end equipment.

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기술 자료

star =TI에서 선정한 이 제품의 인기 문서
검색된 결과가 없습니다. 검색어를 지우고 다시 시도하십시오.
7개 모두 보기
유형 직함 날짜
* Data sheet LP50xx 18-, 24-Channel, 12-Bit, PWM Ultralow-Quiescent-Current, I2 C RGB LED Drivers datasheet (Rev. C) PDF | HTML 2024/07/08
White paper Common LED Functions and LED Driver Design Considerations 2020/09/21
Application note System Design Guidelines for Full-Color RGB LED Matrix Based on LP50xx Device 2020/04/08
Application note How to Select a RGB LED Driver 2019/08/08
White paper 스마트 스피커 기본 사항: 설계 장단점 따져 보기 2019/02/08
Technical article Using an RGBW LED driver to elevate LED human-machine interface designs PDF | HTML 2018/11/27
EVM User's guide LP5024EVM User's Guide 2018/03/14

설계 및 개발

추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.

평가 보드

LP5024EVM — LP5024 12비트 PWM 초저 정동작 전류 I2C RGB LED 드라이버 평가 모듈

This board evaluates the LP5024 I2C bus-controlled, 24-channel, constant-current LED driver. The user's guide includes set-up instructions, a schematic diagram, a bill of materials, printed-circuit board layout drawings, and software instructions.

사용 설명서: PDF
TI.com에서 구매 불가
평가 모듈(EVM)용 GUI

SLVC713 LP50EVM GUI

지원되는 제품 및 하드웨어

지원되는 제품 및 하드웨어

제품
RGB LED 드라이버
LP5009 9채널 I2C 정전류 RGB LED 드라이버 LP5012 12채널 I2C 정전류 RGB LED 드라이버 LP5018 18채널 I2C 정전류 RGB LED 드라이버 LP5024 24채널 I2C 정전류 RGB LED 드라이버 LP5030 30채널 I2C 정전류 RGB LED 드라이버 LP5036 36채널 I2C 정전류 RGB LED 드라이버
하드웨어 개발
평가 보드
LP5012EVM LP5009 및 LP5012에 적합한 LP5012EVM, 12비트 PWM 초저 정동작 전류 I2C RGB LED 드라이버 평가 모듈 LP5024EVM LP5024 12비트 PWM 초저 정동작 전류 I2C RGB LED 드라이버 평가 모듈 LP5036EVM LP5030 및 LP5036에 적합한 LP5036EVM, 12비트 PWM 초저 정동작 전류 I2C RGB LED 드라이버 평가 모듈
시뮬레이션 모델

LP5024 & LP5018 PSpice Transient Model

SLVMCI4.ZIP (116 KB) - PSpice Model
시뮬레이션 모델

LP5024 & LP5018 Unencrypted PSpice Transient Model

SLVMCI3.ZIP (10 KB) - PSpice Model
시뮬레이션 툴

PSPICE-FOR-TI — TI 설계 및 시뮬레이션 툴용 PSpice®

TI용 PSpice®는 아날로그 회로의 기능을 평가하는 데 사용되는 설계 및 시뮬레이션 환경입니다. 완전한 기능을 갖춘 이 설계 및 시뮬레이션 제품군은 Cadence®의 아날로그 분석 엔진을 사용합니다. 무료로 제공되는 TI용 PSpice에는 아날로그 및 전력 포트폴리오뿐 아니라 아날로그 행동 모델에 이르기까지 업계에서 가장 방대한 모델 라이브러리 중 하나가 포함되어 있습니다.

TI 설계 및 시뮬레이션 환경용 PSpice는 기본 제공 라이브러리를 이용해 복잡한 혼합 신호 설계를 시뮬레이션할 수 있습니다. 레이아웃 및 제작에 (...)
레퍼런스 디자인

TIDA-050011 — 다양한 LED 링 조명 패턴 레퍼런스 설계

This reference design enables human-machine interface scenarios with an LED ring that utilizes two LP5024 LED drivers to create vivid lighting patterns. Design helps to resolve common challenges for end equipment with complicated lighting patterns and constant voltage supply. This design can also (...)
Design guide: PDF
회로도: PDF
패키지 CAD 기호, 풋프린트 및 3D 모델
VQFN (RSM) 32 Ultra Librarian

주문 및 품질

포함된 정보:
  • RoHS
  • REACH
  • 디바이스 마킹
  • 납 마감/볼 재질
  • MSL 등급/피크 리플로우
  • MTBF/FIT 예측
  • 물질 성분
  • 인증 요약
  • 지속적인 신뢰성 모니터링
포함된 정보:
  • 팹 위치
  • 조립 위치

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지원 및 교육

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