Inicio Administración de potencia Controladores LED Controladores para LED en automóviles

TPS92830-Q1

ACTIVO

Controlador LED lineal de corriente constante, alta potencia, lado alto y de 3 canales para automoci

Detalles del producto

Number of channels 3 Topology Current Source Rating Automotive Operating temperature range (°C) -40 to 125 Vin (min) (V) 5 Vin (max) (V) 40 Vout (min) (V) 0 Vout (max) (V) 40 Iout (max) (A) 1.2 Iq (typ) (mA) 3.5 Features Enable/Shutdown, Fault Detection, Fault Diagnostic, LED Open Detection, LED Short to Ground Detection, Power good, Precision Dimming Control, Thermal Foldback, Thermal shutdown
Number of channels 3 Topology Current Source Rating Automotive Operating temperature range (°C) -40 to 125 Vin (min) (V) 5 Vin (max) (V) 40 Vout (min) (V) 0 Vout (max) (V) 40 Iout (max) (A) 1.2 Iq (typ) (mA) 3.5 Features Enable/Shutdown, Fault Detection, Fault Diagnostic, LED Open Detection, LED Short to Ground Detection, Power good, Precision Dimming Control, Thermal Foldback, Thermal shutdown
TSSOP (PW) 28 62.08 mm² (9.7 mm × 6.4 mm)
  • AEC-Q100 Qualified
    • Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature Range
    • Device HBM ESD Classification Level H2
    • Device CDM ESD Classification Level C4B
  • Wide Voltage Input Range From 4.5 V to 40 V
  • 3-Channel High-Side Current Driving and Sensing
    • Channel-Independent Current Setting
    • Channel-Independent PWM Inputs
    • PWM Dimming via Both PWM Inputs and Power Supply
    • Optimized Slew Rate for EMC
  • High-Precision LED Driving
    • Precision Current Regulation With External N-Channel MOSFET (2.5% Tolerance)
    • 20:1 Analog Dimming Profile With Off-Board Bin Resistor Support
    • Precision PWM Generator With Full Duty-Cycle Mask (2% Tolerance)
    • Open-Drain PWM Output for Synchronization
  • Protection and Diagnostics
    • Adjustable Output Current Derating for External MOSFET Thermal Protection
    • Diagnostics for LED-String Open Circuit or Short Circuit With Auto Recovery
    • Diagnostic-Enable With Adjustable Threshold for Low-Voltage Operation
    • Fault Bus up to 15 Devices, Configurable As Either One-Fails–All-Fail or Only-Failed-Channel-Off
    • Low Quiescent Current in Fault Mode (<0.75 mA per Device)
  • Operating Junction Temperature Range: –40°C to 150°C
  • TSSOP 28 Package (PW)
  • AEC-Q100 Qualified
    • Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature Range
    • Device HBM ESD Classification Level H2
    • Device CDM ESD Classification Level C4B
  • Wide Voltage Input Range From 4.5 V to 40 V
  • 3-Channel High-Side Current Driving and Sensing
    • Channel-Independent Current Setting
    • Channel-Independent PWM Inputs
    • PWM Dimming via Both PWM Inputs and Power Supply
    • Optimized Slew Rate for EMC
  • High-Precision LED Driving
    • Precision Current Regulation With External N-Channel MOSFET (2.5% Tolerance)
    • 20:1 Analog Dimming Profile With Off-Board Bin Resistor Support
    • Precision PWM Generator With Full Duty-Cycle Mask (2% Tolerance)
    • Open-Drain PWM Output for Synchronization
  • Protection and Diagnostics
    • Adjustable Output Current Derating for External MOSFET Thermal Protection
    • Diagnostics for LED-String Open Circuit or Short Circuit With Auto Recovery
    • Diagnostic-Enable With Adjustable Threshold for Low-Voltage Operation
    • Fault Bus up to 15 Devices, Configurable As Either One-Fails–All-Fail or Only-Failed-Channel-Off
    • Low Quiescent Current in Fault Mode (<0.75 mA per Device)
  • Operating Junction Temperature Range: –40°C to 150°C
  • TSSOP 28 Package (PW)

With the trend of better lighting homogeneity, high-current LEDs are often used in automotive front and rear lamps with lighting diffusers and light-guides. Meanwhile, in order to meet strict EMC and reliability requirements, linear LED drivers are popular in automotive applications. However, it is a challenge to deliver high current for linear LED drivers with integrated power transistors. The TPS92830-Q1 device is an advanced automotive-grade high-side constant-current linear LED controller for delivering high current using external N-channel MOSFETs. The device has a full set of features for automotive applications and is compatible with a wide selection of N-channel MOSFETs.

Each channel of the TPS92830-Q1 device sets the channel current independently by the sense-resistor value. An internal precision constant-current regulation loop senses the channel current by the voltage across the sense resistor and controls the gate voltage of the N-channel MOSFET accordingly. The device also integrates a two-stage charge pump for low-dropout operation. The charge-pump voltage is high enough to support a wide selection of N-channel MOSFETs. PWM dimming allows multiple

sources for flexibility—internal PWM generator, external PWM inputs, or power supply dimming. Various diagnostics and protection features specially designed for automotive applications help improve system robustness and ease of use. A one-fails–all-fail fault bus supports TPS92830-Q1 operation together with the TPS92630-Q1, TPS92638-Q1, and TPS9261x-Q1 family to fulfill various fault-handling requirements.

With the trend of better lighting homogeneity, high-current LEDs are often used in automotive front and rear lamps with lighting diffusers and light-guides. Meanwhile, in order to meet strict EMC and reliability requirements, linear LED drivers are popular in automotive applications. However, it is a challenge to deliver high current for linear LED drivers with integrated power transistors. The TPS92830-Q1 device is an advanced automotive-grade high-side constant-current linear LED controller for delivering high current using external N-channel MOSFETs. The device has a full set of features for automotive applications and is compatible with a wide selection of N-channel MOSFETs.

Each channel of the TPS92830-Q1 device sets the channel current independently by the sense-resistor value. An internal precision constant-current regulation loop senses the channel current by the voltage across the sense resistor and controls the gate voltage of the N-channel MOSFET accordingly. The device also integrates a two-stage charge pump for low-dropout operation. The charge-pump voltage is high enough to support a wide selection of N-channel MOSFETs. PWM dimming allows multiple

sources for flexibility—internal PWM generator, external PWM inputs, or power supply dimming. Various diagnostics and protection features specially designed for automotive applications help improve system robustness and ease of use. A one-fails–all-fail fault bus supports TPS92830-Q1 operation together with the TPS92630-Q1, TPS92638-Q1, and TPS9261x-Q1 family to fulfill various fault-handling requirements.

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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 TPS92830-Q1 3-Channel High-Current Linear LED Controller datasheet (Rev. B) PDF | HTML 16/01/2018
Artículo técnico TI at the Auto Lamp Exhibition 2018 in Shanghai PDF | HTML 30/03/2018
Informe LED Drivers for Automotive Exterior Applications (Rev. B) 27/03/2018
Artículo técnico A wiser choice for automotive lighting PDF | HTML 29/11/2017

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

TPS92830EVM — Módulo de evaluación (EVM) de controlador LED lineal de alta corriente de 3 canales TPS92830-Q1

El módulo de evaluación (EVM) TPS92830-Q1 le ayuda a los diseñadores a evaluar el funcionamiento y el rendimiento del TPS92830-Q1, un controlador LED lineal de alta corriente de 3 canales para aplicaciones de iluminación automotriz. Dispone de regulación de corriente de precisión con MOSFET (...)
Guía del usuario: PDF | HTML
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Modelo de simulación

TPS92830-Q1 Unencrypted PSpice Transient Model Package (Rev. B)

SLIM338B.ZIP (54 KB) - Modelo PSpice
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Diseño de referencia

TIDA-01374 — Diseño de referencia de luz de parada y luz trasera para automoción compatible con EMC

Este diseño de referencia automotriz detalla una solución para una luz de parada y una luz trasera. La batería automotriz alimenta directamente el controlador de diodo de luz (LED) lineal TPS92830-Q1 utilizado en este diseño, lo que permite al diseñador utilizar los mismos LED para ambas funciones. (...)
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Diseño de referencia

TIDA-01375 — Diseño de referencia de luz de conducción diurna y luz de posición para automoción compatible con EM

Este diseño de referencia detalla una solución para una luz de conducción diurna (DRL) y una luz de posición automotriz. El controlador LED lineal TPS92830-Q1  que se utiliza en este diseño se alimenta directamente de la batería automotriz, lo que le permite utilizar los mismos LED para ambas (...)
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Diseño de referencia

TIDA-01376 — Diseño de referencia de indicador de giro LED para automoción compatible con EMC

Este diseño de referencia automotriz detalla una solución para una aplicación de indicador de giro. La batería automotriz alimenta directamente el controlador de diodo de luz (LED) lineal TPS92830-Q1 que se utiliza en este diseño. Este diseño de referencia también cuenta con un sólido rendimiento (...)
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Encapsulado Pines Símbolos CAD, huellas y modelos 3D
TSSOP (PW) 28 Ultra Librarian

Pedidos y calidad

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