Inicio Gestión de la energía Controladores LED Controladores para LED en automóviles

TPS92642-Q1

ACTIVO

Controlador LED infrarrojo reductor síncrono para automoción

Detalles del producto

Number of channels 1 Topology Buck Rating Automotive TI functional safety category Functional Safety-Capable Operating temperature range (°C) -40 to 125 Vin (min) (V) 5 Vin (max) (V) 36 Iout (max) (A) 5 Switching frequency (max) (kHz) 2200
Number of channels 1 Topology Buck Rating Automotive TI functional safety category Functional Safety-Capable Operating temperature range (°C) -40 to 125 Vin (min) (V) 5 Vin (max) (V) 36 Iout (max) (A) 5 Switching frequency (max) (kHz) 2200
HTSSOP (PWP) 16 32 mm² 5 x 6.4
  • AEC-Q100 qualified for automotive applications
    • Grade 1: –40°C to 125°C ambient operating temperature
    • Device HBM classification level H1C
    • Device CDM classification level C5
  • Functional Safety-Capable
    • Documentation available to aid functional safety system design
  • Input voltage range: 5.5 V to 36 V
    • Operation down to 5.15 V after start-up
  • Up to 5-A pulsed output current with 4% accuracy
  • Adaptive on-time current control
    • Low offset high-side current sense amplifier
    • Stable with any combination of ceramic, and aluminum capacitors
  • Programmable switching frequency from 100 kHz to 2.2 MHz
  • Advanced dimming operation
    • 1000:1 precision PWM dimming
    • 15:1 precision analog dimming
  • Internal maximum duty cycle limit
  • Cycle-by-cycle switch overcurrent protection
  • Open-drain fault indicator output
    • LED short circuit, open circuit and cable harness fault indication
  • Thermal shutdown protection
  • AEC-Q100 qualified for automotive applications
    • Grade 1: –40°C to 125°C ambient operating temperature
    • Device HBM classification level H1C
    • Device CDM classification level C5
  • Functional Safety-Capable
    • Documentation available to aid functional safety system design
  • Input voltage range: 5.5 V to 36 V
    • Operation down to 5.15 V after start-up
  • Up to 5-A pulsed output current with 4% accuracy
  • Adaptive on-time current control
    • Low offset high-side current sense amplifier
    • Stable with any combination of ceramic, and aluminum capacitors
  • Programmable switching frequency from 100 kHz to 2.2 MHz
  • Advanced dimming operation
    • 1000:1 precision PWM dimming
    • 15:1 precision analog dimming
  • Internal maximum duty cycle limit
  • Cycle-by-cycle switch overcurrent protection
  • Open-drain fault indicator output
    • LED short circuit, open circuit and cable harness fault indication
  • Thermal shutdown protection

The TPS92642-Q1 is a monolithic, synchronous Buck LED driver with a wide 5.5-V to 36-V operating input voltage range and 40-V tolerance that supports load dump for duration of 400 ms. The TPS92642-Q1 implements an adaptive on-time average current mode control based on inductor valley current detection. The adaptive on-time control provides near constant switching frequency that can be set between 100 kHz and 2.2 MHz. Inductor current sensing and closed-loop feedback enables better than ±4% accuracy over wide input, output and ambient temperature.

The high-performance infrared LED driver can independently modulate LED current using both analog or PWM dimming techniques. Linear analog dimming range with over 15:1 range is obtained by setting the IADJ voltage. PWM dimming of LED current is achieved by directly modulating the UDIM input pin with desired duty cycle. The device incorporates an internal pulse monitoring circuit that limits the maximum pulse duty cycle.

The TPS92642-Q1 incorporates advanced diagnostic and fault protection featuring: cycle-by-cycle switch current limit, bootstrap undervoltage, LED open, LED short and thermal shutdown.

The TPS92642-Q1 is available in a 6.6-mm × 5.1-mm thermally-enhanced 16-pin HTSSOP package with 0.65-mm lead pitch.

The TPS92642-Q1 is a monolithic, synchronous Buck LED driver with a wide 5.5-V to 36-V operating input voltage range and 40-V tolerance that supports load dump for duration of 400 ms. The TPS92642-Q1 implements an adaptive on-time average current mode control based on inductor valley current detection. The adaptive on-time control provides near constant switching frequency that can be set between 100 kHz and 2.2 MHz. Inductor current sensing and closed-loop feedback enables better than ±4% accuracy over wide input, output and ambient temperature.

The high-performance infrared LED driver can independently modulate LED current using both analog or PWM dimming techniques. Linear analog dimming range with over 15:1 range is obtained by setting the IADJ voltage. PWM dimming of LED current is achieved by directly modulating the UDIM input pin with desired duty cycle. The device incorporates an internal pulse monitoring circuit that limits the maximum pulse duty cycle.

The TPS92642-Q1 incorporates advanced diagnostic and fault protection featuring: cycle-by-cycle switch current limit, bootstrap undervoltage, LED open, LED short and thermal shutdown.

The TPS92642-Q1 is available in a 6.6-mm × 5.1-mm thermally-enhanced 16-pin HTSSOP package with 0.65-mm lead pitch.

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Documentación técnica

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Tipo Título Fecha
* Data sheet TPS92642-Q1Automotive Synchronous BuckInfraredLED Driver datasheet PDF | HTML 03 nov 2023
Application note Reducing Cabling Effort in Camera-Based Driver Monitoring Systems (DMS) PDF | HTML 18 dic 2023
User guide TPS92642-Q1 Evaluation Module User's Guide PDF | HTML 28 nov 2023
Certificate TPS92642EVM-203 EU RoHS Declaration of Conformity (DoC) 28 jul 2022

Diseño y desarrollo

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Placa de evaluación

TPS92642EVM-203 — Módulo de evaluación TPS92642-Q1

El módulo de evaluación (EVM) TPS92642EVM-203 ayuda a los diseñadores a evaluar el funcionamiento y el rendimiento del regulador de conmutación reductor de 5.0 A TPS92642-Q1, diseñado para aplicaciones de accionamiento de LED infrarrojo (IR) de alta corriente. El TPS92642-Q1 está diseñado para (...)
Guía del usuario: PDF | HTML
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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HTSSOP (PWP) 16 Ver opciones

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
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  • Lugar de fabricación
  • Lugar de ensamblaje

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