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LP8872-Q1

ACTIVO

Controlador de retroiluminación LED para pantallas de automóviles con seis canales de 150 mA

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) 0 Vout (max) (V) 48 Iout (max) (A) 0.9 Iq (typ) (mA) 7 Switching frequency (max) (kHz) 2200 Features Adjustable Switch Frequency, Boost Sync, Current Derating, Enable/Shutdown, Fault Detection, Fault Diagnostic, Global dimming, Hybrid Dimming/Phase Shift, I2C control, LED Open Detection, LED Short to Ground Detection, LED Shorted Detection, Load Disconnect During Shutdown, Power-Line FET, Soft Start, Spread Spectrum, Synchronization Pin, Thermal 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) 0 Vout (max) (V) 48 Iout (max) (A) 0.9 Iq (typ) (mA) 7 Switching frequency (max) (kHz) 2200 Features Adjustable Switch Frequency, Boost Sync, Current Derating, Enable/Shutdown, Fault Detection, Fault Diagnostic, Global dimming, Hybrid Dimming/Phase Shift, I2C control, LED Open Detection, LED Short to Ground Detection, LED Shorted Detection, Load Disconnect During Shutdown, Power-Line FET, Soft Start, Spread Spectrum, Synchronization Pin, Thermal shutdown
HTSSOP (PWP) 28 62.08 mm² 9.7 x 6.4 VQFN-HR (RBB) 24 16 mm² 4 x 4
  • AEC-Q100 qualified for automotive applications:
    • Device temperature grade 1: –40°C to +125°C, TA
  • Input voltage operating range 3V to 48V
  • Six high-precision current sinks
    • Up to 150mA DC current for each channel
    • Current matching 1% (typical)
    • High dimming ratio 32 000:1 using 152Hz LED output PWM frequency
    • Up to 16-bit LED PWM dimming resolution with I2C, or PWM input
    • Support independent PWM dimming control for each channel
  • Auto-phase shift PWM dimming and direct PWM dimming
  • Hybrid dimming and 12-bit analog dimming
  • Up to 48V VOUT boost or SEPIC DC/DC converter
    • Integrated 5.4A switching FET
    • Support boost/sepic operation
    • Higher efficiency with 60mΩ RDSON and fast switching
    • Boost selectable dual random spread spectrum for reduced EMI
    • Adjustable soft start of converter
    • Boost sync input to set boost switching frequency from an external clock
    • Output voltage automatically discharged when boost is disabled
  • Extensive fault detection and protection
    • Up to 1MHz I2C control interface with CRC check
    • Bit-integrity (CRC) error detection on internal configuration registers and non-volatile memory (NVM)
    • Input voltage OVP, UVLO and OCP
    • Boost overcurrent and overvoltage protection
    • LED open, short and short to ground fault detection
    • Thermal warning and thermal shutdown
  • Small solution size and low cost
    • Dynamically programmable wide switching frequency from 100kHz to 2.2MHz
    • Available in 4mm × 4mm HotRod™ QFN package with wettable flank
  • AEC-Q100 qualified for automotive applications:
    • Device temperature grade 1: –40°C to +125°C, TA
  • Input voltage operating range 3V to 48V
  • Six high-precision current sinks
    • Up to 150mA DC current for each channel
    • Current matching 1% (typical)
    • High dimming ratio 32 000:1 using 152Hz LED output PWM frequency
    • Up to 16-bit LED PWM dimming resolution with I2C, or PWM input
    • Support independent PWM dimming control for each channel
  • Auto-phase shift PWM dimming and direct PWM dimming
  • Hybrid dimming and 12-bit analog dimming
  • Up to 48V VOUT boost or SEPIC DC/DC converter
    • Integrated 5.4A switching FET
    • Support boost/sepic operation
    • Higher efficiency with 60mΩ RDSON and fast switching
    • Boost selectable dual random spread spectrum for reduced EMI
    • Adjustable soft start of converter
    • Boost sync input to set boost switching frequency from an external clock
    • Output voltage automatically discharged when boost is disabled
  • Extensive fault detection and protection
    • Up to 1MHz I2C control interface with CRC check
    • Bit-integrity (CRC) error detection on internal configuration registers and non-volatile memory (NVM)
    • Input voltage OVP, UVLO and OCP
    • Boost overcurrent and overvoltage protection
    • LED open, short and short to ground fault detection
    • Thermal warning and thermal shutdown
  • Small solution size and low cost
    • Dynamically programmable wide switching frequency from 100kHz to 2.2MHz
    • Available in 4mm × 4mm HotRod™ QFN package with wettable flank

The LP8872-Q1 is an automotive high-efficiency, low-EMI and easy-to-use LED driver with integrated DC-DC power switch. The DC-DC converter supports both boost and SEPIC topology configuration. The six high-precision current sinks support PWM phase shifting that is automatically adjusted based on the number of channels in use. LED brightness can be controlled globally through the I²C interface or PWM input.

The boost converter has adaptive output voltage control based on the headroom voltages of the LED current sinks. This feature minimizes the power consumption by adjusting the boost voltage to the lowest sufficient level in all conditions.

The LP8872-Q1 supports built-in hybrid PWM dimming and analog current dimming, which reduces EMI, extends the LED lifetime, and increases the total optical efficiency.

The LP8872-Q1 is an automotive high-efficiency, low-EMI and easy-to-use LED driver with integrated DC-DC power switch. The DC-DC converter supports both boost and SEPIC topology configuration. The six high-precision current sinks support PWM phase shifting that is automatically adjusted based on the number of channels in use. LED brightness can be controlled globally through the I²C interface or PWM input.

The boost converter has adaptive output voltage control based on the headroom voltages of the LED current sinks. This feature minimizes the power consumption by adjusting the boost voltage to the lowest sufficient level in all conditions.

The LP8872-Q1 supports built-in hybrid PWM dimming and analog 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 LP8872-Q1 Automotive Display LED-Backlight Driver with Six 150 mA Channels datasheet PDF | HTML 21 jul 2025

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

LP8870Q1EVM — Módulo de evaluación LP8870-Q1

El módulo de evaluación (EVM) LP8870-Q1 de Texas Instruments ayuda a los diseñadores a evaluar el funcionamiento y el rendimiento del dispositivo LP8870-Q1. Este documento incluye instrucciones de configuración de hardware, instrucciones de software, un diagrama esquemático completo, un diseño de (...)

Guía del usuario: PDF | HTML
Herramienta de diseño

LP887X-LP889X-DESIGN Design resources for LP887x/LP889x family

Design resources for LP887x/LP889x family
Productos y hardware compatibles

Productos y hardware compatibles

Productos
Controladores para LED en automóviles
LP8872-Q1 Controlador de retroiluminación LED para pantallas de automóviles con seis canales de 150 mA LP8873-Q1 Controlador de retroiluminación LED para pantallas automotrices con cuatro canales de 150 mA
Desarrollo de hardware
Placa de evaluación
LP8870Q1EVM Módulo de evaluación LP8870-Q1
Herramienta de simulación

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

PSpice® para TI es un entorno de diseño y simulación que ayuda a evaluar la funcionalidad de los circuitos analógicos. Esta completa suite de diseño y simulación utiliza un motor de análisis analógico de Cadence®. Disponible sin ningún costo, PSpice para TI incluye una de las bibliotecas de modelos (...)
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
HTSSOP (PWP) 28 Ultra Librarian
VQFN-HR (RBB) 24 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

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