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TPS929120-Q1

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Controlador LED de lado alto de 40 V y 12 canales con interfaz FlexWire para automoción

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TPS929120-Q1

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Detalles del producto

Number of channels 12 Topology Current Source Rating Automotive TI functional safety category Functional Safety-Capable Operating temperature range (°C) -40 to 125 Vin (min) (V) 4.5 Vin (max) (V) 40 Iout (max) (A) 0.075 Iq (typ) (mA) 10 Features Enable/Shutdown, Fault Detection, Fault Diagnostic, LED Open Detection, LED Shorted Detection, Precision Dimming Control, Thermal shutdown
Number of channels 12 Topology Current Source Rating Automotive TI functional safety category Functional Safety-Capable Operating temperature range (°C) -40 to 125 Vin (min) (V) 4.5 Vin (max) (V) 40 Iout (max) (A) 0.075 Iq (typ) (mA) 10 Features Enable/Shutdown, Fault Detection, Fault Diagnostic, LED Open Detection, LED Shorted Detection, Precision Dimming Control, Thermal shutdown
HTSSOP (PWP) 24 49.92 mm² 7.8 x 6.4
  • AEC-Q100-qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
  • Functional Safety-Capable
  • 12-Channel precision high-side current output:
    • Supply voltage 4.5 V to 40 V
    • Up to 75 mA channel current set by resistor
    • 2-Bit global, 6-bit independent current setting
    • High current accuracy < ±5% at 5 mA to 75 mA
    • High current accuracy < ±10% at 1 mA
    • Low voltage drop 500 mV at 50 mA
    • 12-Bit independent PWM dimming
    • Programmable PWM frequency up to 20 kHz
    • Linear and exponential dimming method
  • FlexWire control interface
    • Up to 1-MHz clock frequency
    • Maximum 16 devices on one FlexWire bus
    • Up to 8 bytes data transaction in one frame
    • 5-V LDO output to supply CAN transceiver
  • Diagnostic and protection:
    • Programmable fail-safe state
    • LED open-circuit detection
    • LED short-circuit detection
    • Single-LED short-circuit diagnostic
    • Programmable low-supply detection
    • Open-drain ERR for fault indication
    • Watchdog and CRC for FlexWire interface
    • 8-Bit ADC for pin voltage measurement
    • Overtemperature protection
  • AEC-Q100-qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, TA
  • Functional Safety-Capable
  • 12-Channel precision high-side current output:
    • Supply voltage 4.5 V to 40 V
    • Up to 75 mA channel current set by resistor
    • 2-Bit global, 6-bit independent current setting
    • High current accuracy < ±5% at 5 mA to 75 mA
    • High current accuracy < ±10% at 1 mA
    • Low voltage drop 500 mV at 50 mA
    • 12-Bit independent PWM dimming
    • Programmable PWM frequency up to 20 kHz
    • Linear and exponential dimming method
  • FlexWire control interface
    • Up to 1-MHz clock frequency
    • Maximum 16 devices on one FlexWire bus
    • Up to 8 bytes data transaction in one frame
    • 5-V LDO output to supply CAN transceiver
  • Diagnostic and protection:
    • Programmable fail-safe state
    • LED open-circuit detection
    • LED short-circuit detection
    • Single-LED short-circuit diagnostic
    • Programmable low-supply detection
    • Open-drain ERR for fault indication
    • Watchdog and CRC for FlexWire interface
    • 8-Bit ADC for pin voltage measurement
    • Overtemperature protection

With increasing demand for animation in automotive lighting, LEDs must be controlled independently. Therefore, LED drivers with digital interfaces are essential to effectively drive pixel-controlled lighting applications. In exterior lighting, multiple lamp functions are typically located on different PCB boards with off-board wires connected to each other. It is difficult for a traditional single-ended interface to meet the strict EMC requirements. By using an industrial-standard CAN physical layer, the UART-based FlexWire interface of the TPS929120-Q1 easily accomplishes long distance off-board communication without impacting EMC.

The TPS929120-Q1 is a 12-channel, 40-V high-side LED driver that controls the 8-bit output current and 12-bit PWM duty cycles. The device meets multiple regulation requirements with LED open-circuit, short-to-ground, and single LED short-circuit diagnostics. A configurable watchdog also automatically sets fail-safe states when the MCU connection is lost, and, with programmable EEPROM, TPS929120-Q1 can flexibly be set for different application scenarios.

With increasing demand for animation in automotive lighting, LEDs must be controlled independently. Therefore, LED drivers with digital interfaces are essential to effectively drive pixel-controlled lighting applications. In exterior lighting, multiple lamp functions are typically located on different PCB boards with off-board wires connected to each other. It is difficult for a traditional single-ended interface to meet the strict EMC requirements. By using an industrial-standard CAN physical layer, the UART-based FlexWire interface of the TPS929120-Q1 easily accomplishes long distance off-board communication without impacting EMC.

The TPS929120-Q1 is a 12-channel, 40-V high-side LED driver that controls the 8-bit output current and 12-bit PWM duty cycles. The device meets multiple regulation requirements with LED open-circuit, short-to-ground, and single LED short-circuit diagnostics. A configurable watchdog also automatically sets fail-safe states when the MCU connection is lost, and, with programmable EEPROM, TPS929120-Q1 can flexibly be set for different application scenarios.
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TPS929121-Q1 ACTIVO Controlador LED de lado alto de 40 V y 12 canales con interfaz FlexWire para automoción Upgraded ADC range to 40 V.

Documentación técnica

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* Data sheet TPS929120-Q1 12-Channel Automotive 40-V High-Side LED Driver with FlexWire datasheet (Rev. B) PDF | HTML 03 feb 2021
User guide TPS929xxx-Q1 Sample Code User's Guide PDF | HTML 10 abr 2023
Functional safety information Streamlining Functional Safety Certification in Automotive and Industrial 09 jun 2020
Application note TPS929120-Q1 Fault Handling Routing 17 abr 2020
Application note TPS929120-Q1 Pin Failure Modes and Effects Analysis (FMEA) 19 feb 2020
Functional safety information TPS929120-Q1 Functional Safety FIT Rate and Failure Mode Distribution 06 ene 2020
EVM User's guide TPS929120EVM User's Guide (Rev. B) 03 dic 2019
Technical article New LED drivers enhance your automotive lighting solutions PDF | HTML 28 oct 2019
Technical article How semiconductor technologies are changing automotive lighting roadmaps PDF | HTML 24 oct 2019
Application note LED Temperature Protection by Vf Monitoring 29 may 2019

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

TPS929120EVM — Módulo de evaluación TPS929120-Q1 para controlador LED automotriz de 12 canales

El módulo de evaluación (EVM) TPS929120-Q1 ayuda a los diseñadores a evaluar el funcionamiento y el rendimiento del TPS929120-Q1, un controlador LED de lado alto de 12 canales de 40 V con interfaz FlexLED para controlar individualmente la corriente de salida y el ciclo de conducción PWM para (...)
Guía del usuario: PDF
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Software de aplicación y estructura

TPS92912XQ1-SW-F5529 — Reference code for TPS92912x-Q1 based on MSP430F5529 (MSP-EXP430F5529LP)

This reference code showcases the ability of the MSP430F5529 device to communicate with the TPS929120-Q1 and TPS929121-Q1 LED driver. The code configures the MCU using UART to drive 12 LEDs which is available on the TPS929120EVM.
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Productos y hardware compatibles

Productos y hardware compatibles

Productos
Controladores para LED en automóviles
TPS929120-Q1 — Controlador LED de lado alto de 40 V y 12 canales con interfaz FlexWire para automoción TPS929121-Q1 — Controlador LED de lado alto de 40 V y 12 canales con interfaz FlexWire para automoción
Opciones de descarga
Herramienta de cálculo

SLVRBF8 — TPS92912x-Q1 EEPROM Configuration Tool

Productos y hardware compatibles

Productos y hardware compatibles

Productos
Controladores para LED en automóviles
TPS929120-Q1 — Controlador LED de lado alto de 40 V y 12 canales con interfaz FlexWire para automoción TPS929121-Q1 — Controlador LED de lado alto de 40 V y 12 canales con interfaz FlexWire para automoción
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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-020029 — Diseño de referencia del módulo de accionamiento LED de interfaz digital para luz trasera automotriz

This reference design offers a cost-effective solution for automotive rear-light applications such as interactive tail-light clusters that can be used for vehicle-to-vehicle notifications and vehicle design personalization. This reference design incorporates two linear LED drivers. By using a (...)
Design guide: PDF
Esquema: PDF
Paquete Pasadores Descargar
HTSSOP (PWP) 24 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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