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LP5811

ACTIVO

Controlador LED RGBW de 4 canales con impulso síncrono, I2C y control automático de animación

Detalles del producto

Number of channels 4 LED current per channel (mA) 50 LED configuration Parallel Program memory Yes Topology Boost Programmable ramp control Yes Vin (min) (V) 0.5 Vin (max) (V) 5.5 Iout (max) (A) 0.2 Features Analog/PWM mixed dimming, Constant current, I2C control, LED Open Detection, LED Short Detection, Programmable lighting engines, Thermal shutdown Iq (typ) (mA) 0.4 Shutdown current (ISD) (typ) (µA) 0.1 Operating temperature range (°C) -40 to 85 Rating Catalog
Number of channels 4 LED current per channel (mA) 50 LED configuration Parallel Program memory Yes Topology Boost Programmable ramp control Yes Vin (min) (V) 0.5 Vin (max) (V) 5.5 Iout (max) (A) 0.2 Features Analog/PWM mixed dimming, Constant current, I2C control, LED Open Detection, LED Short Detection, Programmable lighting engines, Thermal shutdown Iq (typ) (mA) 0.4 Shutdown current (ISD) (typ) (µA) 0.1 Operating temperature range (°C) -40 to 85 Rating Catalog
DSBGA (YBH) 12 2.5116 mm² 1.82 x 1.38 WSON (DRR) 12 9 mm² 3 x 3
  • Operating voltage range:
    • Input voltage (VIN) range: 0.5V to 5.5V
    • 1.8V minimum input voltage for start-up
    • Logic pins compatible with 1.8V, 3.3V, and 5V
  • High efficiency synchronous boost converter
    • Output voltage (VOUT) range: 3V to 5.5V
    • 140mΩ (HS) / 60mΩ (LS) MOSFETs
    • 1.6A valley switching current limit
    • 95% efficiency at VIN = 4.2V, VOUT = 5.0V, IOUT = 300mA
    • Pass-through mode when VIN > VOUT setting
    • True disconnection between input and output during shutdown

  • 4 constant current sinks with high precision:
    • 0.1mA to 51mA per current sink
    • Device-to-device error: max ±5%
    • Channel-to-channel error: max ±5%
    • Ultra-low headroom voltage: 110mV (typ.) at 25.5mA; 210mV (typ.) at 51mA
    • PWM phase shift configurable for each LED
  • Ultra-low power consumption:
    • Shutdown: ISD = 0.1µA (typical) when EN = Low
    • Standby: ISTB = 26µA (typical) when EN = High and CHIP_EN = 0 (data retained)
    • Active: INOR = 0.45mA (typical) when LED current = 25.5mA
  • Analog dimming (current gain control)
    • Global 1-bit Maximum Current (MC): 25.5mA or 51mA
    • Individual 8-bit Dot Current (DC) setting
  • PWM dimming up to audible-noise-free 24kHz
    • Individual 8-bit PWM dimming resolution
    • Linear or exponential dimming curves
  • Autonomous animation engine control
  • Individual LED dot open/short detection
  • Integrated de-ghosting function
  • 1MHz (max.) I2C interface
  • –40°C to 85°C operating temperature range
  • Operating voltage range:
    • Input voltage (VIN) range: 0.5V to 5.5V
    • 1.8V minimum input voltage for start-up
    • Logic pins compatible with 1.8V, 3.3V, and 5V
  • High efficiency synchronous boost converter
    • Output voltage (VOUT) range: 3V to 5.5V
    • 140mΩ (HS) / 60mΩ (LS) MOSFETs
    • 1.6A valley switching current limit
    • 95% efficiency at VIN = 4.2V, VOUT = 5.0V, IOUT = 300mA
    • Pass-through mode when VIN > VOUT setting
    • True disconnection between input and output during shutdown

  • 4 constant current sinks with high precision:
    • 0.1mA to 51mA per current sink
    • Device-to-device error: max ±5%
    • Channel-to-channel error: max ±5%
    • Ultra-low headroom voltage: 110mV (typ.) at 25.5mA; 210mV (typ.) at 51mA
    • PWM phase shift configurable for each LED
  • Ultra-low power consumption:
    • Shutdown: ISD = 0.1µA (typical) when EN = Low
    • Standby: ISTB = 26µA (typical) when EN = High and CHIP_EN = 0 (data retained)
    • Active: INOR = 0.45mA (typical) when LED current = 25.5mA
  • Analog dimming (current gain control)
    • Global 1-bit Maximum Current (MC): 25.5mA or 51mA
    • Individual 8-bit Dot Current (DC) setting
  • PWM dimming up to audible-noise-free 24kHz
    • Individual 8-bit PWM dimming resolution
    • Linear or exponential dimming curves
  • Autonomous animation engine control
  • Individual LED dot open/short detection
  • Integrated de-ghosting function
  • 1MHz (max.) I2C interface
  • –40°C to 85°C operating temperature range

The LP5811 is a synchronous boost 4-channel RGBW LED driver with autonomous animation engine control. The device is ideal to support battery-powered applications with 0.5V to 5.5V input voltage range, and it has ultra-low normal operation current with 0.4mA (typical) when illuminate LEDs.

The integrated synchronous boost converter maintains excellent efficiency and keeps the brightness of LEDs stable over a wide operating voltage range. Output voltage can be selected for different LED forward voltage from 3V to 5.5V with 0.1V step. The boost converter can power not only the LEDs driven by the device itself, but also other loads in the system. If the boost converter need to be bypassed, VOUT is used as the power supply input for the LED driver blocks.

Both analog dimming and PWM dimming methods are adopted to achieve powerful dimming performance. The output current of each LED can be adjusted with 256 steps from 0.1mA to 25.5mA or 0.2mA to 51mA. The 8-bit PWM generator enables smooth and audible-noise-free dimming control for LED brightness.

The autonomous animation engine can significantly reduce the real-time loading of controller. Each LED can be configured through the related registers to realize vivid and fancy lighting effects. The device can generate 6MHz clock signal and use it for synchronizing the lighting effects among multiple devices.

The LP5811 is a synchronous boost 4-channel RGBW LED driver with autonomous animation engine control. The device is ideal to support battery-powered applications with 0.5V to 5.5V input voltage range, and it has ultra-low normal operation current with 0.4mA (typical) when illuminate LEDs.

The integrated synchronous boost converter maintains excellent efficiency and keeps the brightness of LEDs stable over a wide operating voltage range. Output voltage can be selected for different LED forward voltage from 3V to 5.5V with 0.1V step. The boost converter can power not only the LEDs driven by the device itself, but also other loads in the system. If the boost converter need to be bypassed, VOUT is used as the power supply input for the LED driver blocks.

Both analog dimming and PWM dimming methods are adopted to achieve powerful dimming performance. The output current of each LED can be adjusted with 256 steps from 0.1mA to 25.5mA or 0.2mA to 51mA. The 8-bit PWM generator enables smooth and audible-noise-free dimming control for LED brightness.

The autonomous animation engine can significantly reduce the real-time loading of controller. Each LED can be configured through the related registers to realize vivid and fancy lighting effects. The device can generate 6MHz clock signal and use it for synchronizing the lighting effects among multiple devices.

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Documentación técnica

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* Data sheet LP5811 Synchronous Boost 4-Channel RGBW LED Driver with Autonomous Control datasheet (Rev. B) PDF | HTML 02 dic 2024
User guide LP5811 Synchronous Boost 4-Channel RGBW LED Driver Register Map PDF | HTML 24 sep 2024

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

LP5811-10EVM — Módulo de evaluación LP5811 y LP5810

Los módulos de evaluación (EVM) LP5811 y LP5810 muestran todas las características de los controladores LED LP5811 y LP5810. LP581XEVM-GUI se utiliza para conectarse con USB2ANY al EVM. El EVM tiene entradas I²C a través del adaptador de interfaz USB2ANY.

Guía del usuario: PDF | HTML
Placa de evaluación

LP5813-12WCSPEVM — Módulo de evaluación LP5813/LP5812 para controlador LED de matriz 4 × 3 con control de animación aut

El módulo de evaluación LP5813/12 muestra todas las características de los controladores LED RGB LP5813 y LP5812 de matriz 4 × 3. La diferencia entre los dos dispositivos es con o sin función de elevador síncrono. La interfaz gráfica de usuario (GUI) LP581x se utiliza para conectarse con USB2ANY al (...)

Guía del usuario: PDF | HTML
Placa de evaluación

LP5813-12WSONEVM — Módulos de evaluación LP5812 y LP5813 para encapsulado WSON

Los módulos de evaluación (EVM) LP5813 y LP5812 muestran todas las características de los controladores LED RGB LP5813 y LP5812 de matriz 4 × 3 con control autónomo. La diferencia entre los dos dispositivos es con o sin función de elevador síncrono. Tanto LP5813 como LP5812 se colocan en una placa. (...)

Guía del usuario: PDF | HTML
GUI para el módulo de evaluación (EVM)

LP581XEVM-GUI GUI for LP581x Family LED Drivers

The LP581x-GUI is a evaluation tool for LP581x family devices, it can be used to evaluate the LP581xEVM or customized board through USB2ANY interface adapter and showcases all the features of the LP581x family devices.
Productos y hardware compatibles

Productos y hardware compatibles

Productos
Drivers LED RGB
LP5813 Controlador LED RGB de matriz 4 × 3 con funcionamiento de boost síncrono, I2C y control automático d LP5812 Controlador LED RGB de matriz 4 × 3 con I2C y control automático de animación LP5811 Controlador LED RGBW de 4 canales con impulso síncrono, I2C y control automático de animación LP5810 Controlador LED RGBW de 4 canales con I2C y control automático de animación
Desarrollo de hardware
Placa de evaluación
LP5813-12WCSPEVM Módulo de evaluación LP5813/LP5812 para controlador LED de matriz 4 × 3 con control de animación aut LP5813-12WSONEVM Módulos de evaluación LP5812 y LP5813 para encapsulado WSON LP5811-10EVM Módulo de evaluación LP5811 y LP5810
Iniciar Opciones de descarga
Herramienta de simulación

PSPICE-FOR-TI — PSpice® para herramienta de diseño y simulación de TI

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
DSBGA (YBH) 12 Ultra Librarian
WSON (DRR) 12 Ultra Librarian

Pedidos y calidad

Información incluida:
  • RoHS
  • REACH
  • Marcado del dispositivo
  • Acabado de plomo/material de la bola
  • Clasificación de nivel de sensibilidad a la humedad (MSL) / reflujo máximo
  • Estimaciones de tiempo medio entre fallas (MTBF)/fallas en el tiempo (FIT)
  • Contenido del material
  • Resumen de calificaciones
  • Monitoreo continuo de confiabilidad
Información incluida:
  • Lugar de fabricación
  • Lugar de ensamblaje

Los productos recomendados pueden tener parámetros, módulos de evaluación o diseños de referencia relacionados con este producto de TI.

Soporte y capacitación

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

El contenido lo proporcionan “tal como está” TI y los colaboradores de la comunidad y no constituye especificaciones de TI. Consulte los términos de uso.

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