Inicio Administración de potencia Controladores LED Controladores para LED en automóviles

TPS92638-Q1

ACTIVO

Controlador LED lineal de 8 canales con atenuación PWM para automoción

Se encuentra disponible una versión más nueva de este producto

open-in-new Comparar alternativas
Funcionalidad similar a la del dispositivo comparado
TPS92624-Q1 ACTIVO Controlador LED de cuatro canales de lado alto con uso compartido térmico para automoción Contains 4 channels instead of 8, but features thermal sharing to distribute heat with external resistor.

Detalles del producto

Number of channels 8 Topology Current Source Rating Automotive TI functional safety category Functional Safety-Capable 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) 0.56 Iq (typ) (mA) 0.6 Features Enable/Shutdown, Fault Detection, Fault Diagnostic, LED Open Detection, LED Short to Ground Detection, Thermal Foldback, Thermal shutdown
Number of channels 8 Topology Current Source Rating Automotive TI functional safety category Functional Safety-Capable 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) 0.56 Iq (typ) (mA) 0.6 Features Enable/Shutdown, Fault Detection, Fault Diagnostic, LED Open Detection, LED Short to Ground Detection, Thermal Foldback, Thermal shutdown
HTSSOP (PWP) 20 41.6 mm² (6.5 mm × 6.4 mm)
  • Qualified for Automotive Applications
    • Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature Range
    • Device HBM ESD Classification Level H2
    • Device CDM ESD Classification Level C3B
  • Functional safety capable
    • Documentation available to aid functional safety system design
  • 8-Channel LED Driver With Analog and PWM Dimming
  • Wide Input-Voltage Range: 5 V–40 V
  • Adjustable Constant Output Current Set by Reference Resistor
    • Maximum Current: 70 mA per Channel
    • Maximum Current: 560 mA in Parallel Operation Mode
    • Accuracy: ±3% per Channel
    • Accuracy: ±4% per Device
  • PWM Dimming Input (PWM)
    • Turn ON/OFF Delay Time: 25 µs (typ.), 45 µs (max.)
  • 4-Bank PWM Dimming to Control 8 Channels
  • Open- and Shorted-LED Detection With Deglitch
  • Fault Pin for Open, Short, and Thermal-Shutdown Failure Reporting, Allowing Parallel Bus Connection of up to 15 Devices
  • Temperature-Current Foldback to Prevent Thermal Shutdown, With Programmable Threshold
  • Single Resistor for Stop-Current Set Point
  • Single Resistor for Tail-Current Set Point
  • Operating Junction Temperature Range –40°C to 150°C
  • Package: 20-Pin Thermally Enhanced PWP Package (PDSO)
  • Qualified for Automotive Applications
    • Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature Range
    • Device HBM ESD Classification Level H2
    • Device CDM ESD Classification Level C3B
  • Functional safety capable
    • Documentation available to aid functional safety system design
  • 8-Channel LED Driver With Analog and PWM Dimming
  • Wide Input-Voltage Range: 5 V–40 V
  • Adjustable Constant Output Current Set by Reference Resistor
    • Maximum Current: 70 mA per Channel
    • Maximum Current: 560 mA in Parallel Operation Mode
    • Accuracy: ±3% per Channel
    • Accuracy: ±4% per Device
  • PWM Dimming Input (PWM)
    • Turn ON/OFF Delay Time: 25 µs (typ.), 45 µs (max.)
  • 4-Bank PWM Dimming to Control 8 Channels
  • Open- and Shorted-LED Detection With Deglitch
  • Fault Pin for Open, Short, and Thermal-Shutdown Failure Reporting, Allowing Parallel Bus Connection of up to 15 Devices
  • Temperature-Current Foldback to Prevent Thermal Shutdown, With Programmable Threshold
  • Single Resistor for Stop-Current Set Point
  • Single Resistor for Tail-Current Set Point
  • Operating Junction Temperature Range –40°C to 150°C
  • Package: 20-Pin Thermally Enhanced PWP Package (PDSO)

The TPS92638-Q1 is an eight-channel linear LED driver with PWM dimming control. Its design is ideal for driving multiple strings of LEDs up to a medium power range.

This device can drive up to eight strings with one to three LEDs in each string, at a total current up to 70 mA per channel. Outputs can be in parallel to provide higher-current drive up to 560 mA.

In multiple-string applications, the device offers the advantage of having common-cathode connection of the LED stings. So, there is only a single return wire needed instead of one per LED string that a system with low-side current sense would need.

The device has the capability for switching LED current between high current and low current for stop and tail applications. Two reference resistors set the two LED current levels from each output.

The included temperature monitor reduces the LED drive current if the IC junction temperature exceeds a thermal threshold. The temperature threshold is programmable through an external resistor. One can disable the thermal current-monitor feature by connecting the TEMP pin to ground. Output of the junction temperature as an analog voltage is available as a factory program option.

The TPS92638-Q1 is an eight-channel linear LED driver with PWM dimming control. Its design is ideal for driving multiple strings of LEDs up to a medium power range.

This device can drive up to eight strings with one to three LEDs in each string, at a total current up to 70 mA per channel. Outputs can be in parallel to provide higher-current drive up to 560 mA.

In multiple-string applications, the device offers the advantage of having common-cathode connection of the LED stings. So, there is only a single return wire needed instead of one per LED string that a system with low-side current sense would need.

The device has the capability for switching LED current between high current and low current for stop and tail applications. Two reference resistors set the two LED current levels from each output.

The included temperature monitor reduces the LED drive current if the IC junction temperature exceeds a thermal threshold. The temperature threshold is programmable through an external resistor. One can disable the thermal current-monitor feature by connecting the TEMP pin to ground. Output of the junction temperature as an analog voltage is available as a factory program option.

Descargar Ver vídeo con transcripción Video

Productos similares que pueden interesarle

open-in-new Comparar alternativas
Misma funcionalidad con diferente configuración de pines que el dispositivo comparado
TPS929120-Q1 ACTIVO Controlador LED de lado alto de 40 V y 12 canales con interfaz FlexWire para automoción 12-ch with flexwire interface
TPS92633-Q1 ACTIVO Controlador LED de tres canales de lado alto con uso compartido térmico y binning fuera de placa par Upgraded power delivery capability and off-board BIN control function

Documentación técnica

No se encontraron resultados. Borre su búsqueda y vuelva a intentarlo.
Ver todo 10
Documentación principal Tipo Título Opciones de formato Descargar la versión más reciente en inglés Fecha
* Hoja de datos TPS92638-Q1 8-Channel Linear LED Driver With PWM Dimming datasheet (Rev. C) PDF | HTML 15/01/2020
Nota sobre la aplicación Typical Design Guidelines for TPS92630/8-Q1 in Automotive Rear Lamp Applications PDF | HTML 1/09/2020
Información sobre seguridad funcional Streamlining Functional Safety Certification in Automotive and Industrial 9/06/2020
Artículo técnico Always make the right turn: how to design fault circuits in automotive lighting sy PDF | HTML 16/01/2020
Información sobre seguridad funcional TPS92638-Q1 Functional Safety FIT Rate and Failure Mode Distribution 6/01/2020
Informe Trends and topologies for automotive rear lighting systems (Rev. A) 23/09/2019
Artículo técnico How to overcome size, EMI and thermal challenges of automotive LED lighting PDF | HTML 9/04/2018
Informe LED Drivers for Automotive Exterior Applications (Rev. B) 27/03/2018
Guía de diseño EMC Compatible Automotive LED Rear Lamp Sequential-Turn Animation Design Guide 2/06/2016
Nota sobre la aplicación How to Calculate TPS92630-Q1 Maximum Output Current for Automotive Exterior Ligh 22/12/2015

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

TPS92638EVM — EVM de controlador LED lineal de ocho canales TPS92638

Texas Instruments TPS92638 evaluation module contains a TPS92638 integrated circuit (IC), supporting passive components and three OSRAM LEDs in series per channel, the EVM includes 8 channels. The purpose of this EVM is to facilitate evaluation of the TPS92638 in a typical LED application.

Guía del usuario: PDF
Productos y hardware compatibles
En inventario
Límite:
??asset.out-of-stock-ti_es_MX??
No disponible
Placa de evaluación

TPS92638STAEVM — Lámpara trasera LED compatible con EMC con módulo de evaluación de animación por giro secuencial par

Este diseño es una solución analógica para luces traseras de automóviles con animaciones secuenciales de giro. Este diseño es compatible con la RI TL81000 y la prueba BCI en un laboratorio EMC de terceros. Este diseño también ilustra el diagnóstico completo del automóvil con baja corriente inactiva (...)

Guía del usuario: PDF
Productos y hardware compatibles
En inventario
Límite:
??asset.out-of-stock-ti_es_MX??
No disponible
Modelo de simulación

TPS92638-Q1 Unencrypted PSpice Transient Model Package (Rev. C)

SLVMAQ1C.ZIP (111 KB) - Modelo PSpice
Productos y hardware compatibles
Diseño de referencia

TIDA-00356 — Diseño de referencia del interruptor de control de puertas de calidad automotriz

This automotive door control switch reference design showcases a proof-of-concept solution for an automotive door control switch panel that communicates wirelessly to the door side mirror, window lift and door lock mechanisms. Using TI's automotive qualified Bluetooth® low energy + MCU CC2541-Q1 (...)

Productos y hardware compatibles
Diseño de referencia

TIDA-00846 — Diseño de referencia de luz trasera de atenuación lateral alta de calidad automotriz

This reference design is for automotive high-side dimming rear light, which uses BCM to supply the rear light. In the design, the high-side driver TPS1H100-Q1 is used to output PWM supply with different duty cycle. Linear LED drivers TPS92630-Q1 and TPS92638-Q1 are used to drive LEDs in constant (...)

Productos y hardware compatibles
Diseño de referencia

TIDA-01007 — Diseño de referencia de lámpara trasera LED compatible con EMC con animación por giro secuencial de

Este diseño es una solución analógica para luces traseras de automóviles con animaciones secuenciales de giro. Este diseño es compatible con la RI TL81000 y la prueba BCI en un laboratorio EMC de terceros. Este diseño también ilustra el diagnóstico completo del automóvil con baja corriente (...)
Productos y hardware compatibles
Diseño de referencia

TIDA-01348 — Diseño de referencia de luz trasera de 7.5 W, clasificada como clase 5 CISPR 25, para sistema de ilu

Este diseño de referencia es para aplicaciones de luz trasera automotriz. El diseño cuenta con un controlador LED lineal TPS92638-Q1 alimentado por un convertidor buck sincrónico (LM53601-Q1) que se suministra directamente desde la tensión de la batería del automóvil. Este diseño ayuda a superar (...)
Productos y hardware compatibles
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
HTSSOP (PWP) 20 Ultra Librarian

Pedidos y calidad

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.

Si tiene alguna pregunta sobre calidad, encapsulados o pedido de productos de TI, consulte el servicio de asistencia de TI. ​​​​​​​​​​​​​​

Videos