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Controladores LED
Drivers LED RGB

LP5030

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Controlador LED RGB de corriente constante I2C de 30 canales

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LP5030

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Detalles del producto

Number of channels 30 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) 1.05 Features Constant current, Current control, I2C control, Power-save mode Iq (typ) (mA) 0.01 Shutdown current (ISD) (typ) (µA) 1 Operating temperature range (°C) -40 to 125 Rating Catalog
Number of channels 30 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) 1.05 Features Constant current, Current control, I2C control, Power-save mode Iq (typ) (mA) 0.01 Shutdown current (ISD) (typ) (µA) 1 Operating temperature range (°C) -40 to 125 Rating Catalog
VQFN (RJV) 46 30 mm² (6 mm × 5 mm)
  • Operating Voltage Range:
    • VCC 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
  • 36 Constant-Current Sinks With High Precision
    • 25.5 mA Maximum per Channel When VCC in Full Range
    • 35 mA Maximum per Channel When VCC ≥ 3.3 V
    • Device-to-Device Error ±5%; Channel-to-Channel Error ±5%
  • Ultralow Quiescent Current:
    • Shutdown Mode: 1 µA (Maximum) When EN Low
    • Power Saving Mode: 12 µA (Maximum) When 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-Shifting PWM 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 I2C Speed
  • Operating Voltage Range:
    • VCC 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
  • 36 Constant-Current Sinks With High Precision
    • 25.5 mA Maximum per Channel When VCC in Full Range
    • 35 mA Maximum per Channel When VCC ≥ 3.3 V
    • Device-to-Device Error ±5%; Channel-to-Channel Error ±5%
  • Ultralow Quiescent Current:
    • Shutdown Mode: 1 µA (Maximum) When EN Low
    • Power Saving Mode: 12 µA (Maximum) When 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-Shifting PWM 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 I2C Speed

Efficient and high-performance LED response effects, such as blinking, breathing, and chasing, are critical to improving end-user experience in many human machine interface (HMI) applications.

The LP503x device is a 30- or 36-channel constant-current-sink LED driver. The LP503x has a 29 kHz, 12-Bit PWM generator for each channel, as well as channel/module independent color mixing and intensity control, formerly called brightness control registers to enable vivid LED effects with zero audible noise. Users can benefit from the device’s ultra-low shutdown Iq Power Saving Mode, while designers will appreciate the incredibly straightforward software coding of the LP503x’s three programmable R G B banks.

The LP503x device controls each LED output with a 12-bit PWM resolution at 29-kHz switching frequency. This control helps get an intensity that decreases smoothly and stops audible noise. Having different color-mixing and intensity-control registers makes writing the software code straightforward. When targeting fade-in, fade-out type breathing effects, the global R, G, B bank control reduces the microcontroller loading significantly. The LP503x device also implements a PWM phase-shifting function to help reduce the input power budget when LEDs turn on simultaneously.

The LP503x device has an automatic power-saving mode to get the ultra-low quiescent current. When channels are all off for 30 ms, the device total power consumption is down to 10 µA, making the LP503x device a possible alternative for battery-powered end equipment.

Efficient and high-performance LED response effects, such as blinking, breathing, and chasing, are critical to improving end-user experience in many human machine interface (HMI) applications.

The LP503x device is a 30- or 36-channel constant-current-sink LED driver. The LP503x has a 29 kHz, 12-Bit PWM generator for each channel, as well as channel/module independent color mixing and intensity control, formerly called brightness control registers to enable vivid LED effects with zero audible noise. Users can benefit from the device’s ultra-low shutdown Iq Power Saving Mode, while designers will appreciate the incredibly straightforward software coding of the LP503x’s three programmable R G B banks.

The LP503x device controls each LED output with a 12-bit PWM resolution at 29-kHz switching frequency. This control helps get an intensity that decreases smoothly and stops audible noise. Having different color-mixing and intensity-control registers makes writing the software code straightforward. When targeting fade-in, fade-out type breathing effects, the global R, G, B bank control reduces the microcontroller loading significantly. The LP503x device also implements a PWM phase-shifting function to help reduce the input power budget when LEDs turn on simultaneously.

The LP503x device has an automatic power-saving mode to get the ultra-low quiescent current. When channels are all off for 30 ms, the device total power consumption is down to 10 µA, making the LP503x device a possible alternative for battery-powered end equipment.
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Documentación técnica

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Documentación principal Tipo Título Opciones de formato Descargar la versión más reciente en inglés Fecha
* Hoja de datos LP503x 36-, 30-Channel 12-Bit PWM Ultra-low Quiescent Current I2C RGB LED Drivers datasheet (Rev. B) PDF | HTML 21/01/2019
Informe Common LED Functions and LED Driver Design Considerations 21/09/2020
Nota sobre la aplicación System Design Guidelines for Full-Color RGB LED Matrix Based on LP50xx Device 8/04/2020
Nota sobre la aplicación How to Select a RGB LED Driver 8/08/2019
Informe Smart speaker fundamentals: Weighing the many design trade-offs 25/02/2019
Artículo técnico Using an RGBW LED driver to elevate LED human-machine interface designs PDF | HTML 27/11/2018

Diseño y desarrollo

Para conocer los términos adicionales o los recursos necesarios, haga clic en cualquier título de abajo para ver la página de detalles cuando esté disponible.

Placa de evaluación

LP5036EVM — LP5036EVM, módulo de evaluación de controlador de LED RGB con corriente quiescente ultrabaja y PWM d

Lo que necesita para empezar: 

Paso 1: Solicite el hardware 

Paso 2: Descargue e instale la interfaz gráfica de usuario de LP50EVM y consulte la guía del usuario de EVM
  • Nuestra interfaz gráfica de usuario LP50EVM se utiliza con el LP50EVM para evaluar las características del dispositivo LP50xx.

Paso (...)
Guía del usuario: PDF | HTML
Productos y hardware compatibles
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No disponible
GUI para el módulo de evaluación (EVM)

SLVC713 — LP50EVM GUI

Productos y hardware compatibles
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
VQFN (RJV) 46 Ultra Librarian
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Pedidos y calidad

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Soporte y capacitación

Foros de TI E2E™ con asistencia técnica de los ingenieros de TI

Ver todos los temas del foro en inglés

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