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Gestión de la energía
Controladores LED
Controladores para LED en automóviles

LP8863-Q1

ACTIVO

Controlador de luz de fondo LED LP8863-Q1 automotriz con seis canales de 150 mA

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LP8863-Q1

ACTIVO
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Detalles del producto

Number of channels 6 Topology Boost with Current Sink, SEPIC Controller Rating Automotive Operating temperature range (°C) -40 to 125 Vin (min) (V) 3 Vin (max) (V) 48 Vout (min) (V) 7 Vout (max) (V) 48 Iout (max) (A) 0.9 Iq (typ) (mA) 15 Switching frequency (max) (kHz) 2200 Features Adjustable Switch Frequency, Boost Sync, Enable/Shutdown, Fault Detection, Fault Diagnostic, Global dimming, Hybrid Dimming/Phase Shift, I2C control, LED Open Detection, LED Shorted Detection, Load Disconnect During Shutdown, Power-Line FET, Soft Start, Spread Spectrum, Synchronization Pin, Thermal Prewarning and Shutdown
Number of channels 6 Topology Boost with Current Sink, SEPIC Controller Rating Automotive Operating temperature range (°C) -40 to 125 Vin (min) (V) 3 Vin (max) (V) 48 Vout (min) (V) 7 Vout (max) (V) 48 Iout (max) (A) 0.9 Iq (typ) (mA) 15 Switching frequency (max) (kHz) 2200 Features Adjustable Switch Frequency, Boost Sync, Enable/Shutdown, Fault Detection, Fault Diagnostic, Global dimming, Hybrid Dimming/Phase Shift, I2C control, LED Open Detection, LED Shorted Detection, Load Disconnect During Shutdown, Power-Line FET, Soft Start, Spread Spectrum, Synchronization Pin, Thermal Prewarning and Shutdown
HTSSOP (DCP) 38 62.08 mm² 9.7 x 6.4
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature
  • Input Voltage Operating Range 3 V to 48 V
  • Six High-Precision Current Sinks
    • Current Matching 1% (typical)
    • Dimming Ratio 32 000:1 Using 152-Hz LED Output PWM Frequency
    • Up to 16-bit LED Dimming Resolution With SPI, I2C, or PWM Input
    • Automatically Detects Used LED Strings and Adjusts LED-Channel Phase Shift
    • Independent Current Control for Each Channel
  • Hybrid PWM and Current Dimming Function
  • Up to 47-V VOUT Boost or SEPIC DC/DC Controller
    • Switching Frequency 300 kHz to 2.2 MHz
    • Boost Spread Spectrum for Reduced EMI
    • Boost Sync Input to Set Boost Switching Frequency From an External Clock
    • Integrated Charge Pump Supports Low VIN Conditions Such as Cold Crank
    • Output Voltage Automatically Discharged When Boost is Disabled
  • Extensive Fault Diagnostics
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature
  • Input Voltage Operating Range 3 V to 48 V
  • Six High-Precision Current Sinks
    • Current Matching 1% (typical)
    • Dimming Ratio 32 000:1 Using 152-Hz LED Output PWM Frequency
    • Up to 16-bit LED Dimming Resolution With SPI, I2C, or PWM Input
    • Automatically Detects Used LED Strings and Adjusts LED-Channel Phase Shift
    • Independent Current Control for Each Channel
  • Hybrid PWM and Current Dimming Function
  • Up to 47-V VOUT Boost or SEPIC DC/DC Controller
    • Switching Frequency 300 kHz to 2.2 MHz
    • Boost Spread Spectrum for Reduced EMI
    • Boost Sync Input to Set Boost Switching Frequency From an External Clock
    • Integrated Charge Pump Supports Low VIN Conditions Such as Cold Crank
    • Output Voltage Automatically Discharged When Boost is Disabled
  • Extensive Fault Diagnostics

The LP8863-Q1 is an automotive high-efficiency LED driver with boost controller. The six high-precision current sinks support phase shifting that is automatically adjusted based on the number of channels in use. Current sink brightness can be controlled individually and globally through the SPI or I2C interface; brightness can also be globally controlled with PWM input.

The boost controller has adaptive output voltage control based on the headroom voltages of the LED current sinks. This feature minimizes the power consumption by adjusting the voltage to the lowest sufficient level in all conditions. A wide-range adjustable frequency allows the LP8863-Q1 to avoid disturbance for AM radio band.

The LP8863-Q1 supports built-in hybrid PWM and current dimming, which reduces EMI, extends the LED lifetime, and increases the total optical efficiency.

The LP8863-Q1 is an automotive high-efficiency LED driver with boost controller. The six high-precision current sinks support phase shifting that is automatically adjusted based on the number of channels in use. Current sink brightness can be controlled individually and globally through the SPI or I2C interface; brightness can also be globally controlled with PWM input.

The boost controller has adaptive output voltage control based on the headroom voltages of the LED current sinks. This feature minimizes the power consumption by adjusting the voltage to the lowest sufficient level in all conditions. A wide-range adjustable frequency allows the LP8863-Q1 to avoid disturbance for AM radio band.

The LP8863-Q1 supports built-in hybrid PWM and current dimming, which reduces EMI, extends the LED lifetime, and increases the total optical efficiency.

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Documentación técnica

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* Data sheet LP8863-Q1 Automotive Display LED-Backlight Driver With Six 150-mA Channels datasheet (Rev. B) PDF | HTML 02 jul 2018
Application note LP886x-Q1 Feedback Resistor Design Considerations PDF | HTML 12 may 2021
Functional safety information LP8863-Q1 Functional Safety, FIT Rate, and Failure Mode Distribution 27 abr 2020
Application note LP8863-Q1 Automatic String Detection Deep Dive PDF | HTML 06 abr 2020
Application note Some Guidelines and Tips for the LED Driver Application 14 ago 2019
White paper Powering automotive displays to create interactive driving experiences 21 dic 2017
Application note LP8863-Q1 External Component Selection Guide (Rev. A) 24 jul 2017
Application note PCB Layout Guideline for Automotive LED Drivers 07 abr 2017
EVM User's guide LP8863-Q1 Boost Evaluation Board (LP8863BOOSTEVM) 15 mar 2017

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

LP8863EVM — Módulo de evaluación de controlador LED para aplicaciones automotrices

Guía del usuario: PDF
No disponible en TI.com
GUI para el módulo de evaluación (EVM)

SNVC209 — LP8863EVM GUI

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Productos y hardware compatibles

Productos y hardware compatibles

Productos
Controladores para LED en automóviles
LP8863-Q1 — Controlador de luz de fondo LED LP8863-Q1 automotriz con seis canales de 150 mA
Desarrollo de hardware
Placa de evaluación
LP8863EVM — Módulo de evaluación de controlador LED para aplicaciones automotrices
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Modelo de simulación

LP8863-Q1 PSpice Transient Model

SNVMB63.ZIP (283 KB) - PSpice Model
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Herramienta de cálculo

SNVR495 — LP8863-Q1 External Components Calculation Tools

Productos y hardware compatibles

Productos y hardware compatibles

Productos
Controladores para LED en automóviles
LP8863-Q1 — Controlador de luz de fondo LED LP8863-Q1 automotriz con seis canales de 150 mA
Descargar
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 (...)
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Diseños de referencia

TIDA-01008 — Diseño de referencia de retroiluminación de detección óptica con detección de temperatura

This reference design conserves power and extends life of LCD and backlight by adjusting the backlight brightness relative to the ambient light level. The capTIvate touch slider allows the brightness to be finetuned per the user's brightness preference. The sensitive thermal requirements of the (...)
Design guide: PDF
Esquema: PDF
Paquete Pasadores Descargar
HTSSOP (DCP) 38 Ver opciones
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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

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