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Controlador LED reductor de alta tensión con atenuación precisa

Detalles del producto

Input voltage type DC/DC Topology Buck Vin (min) (V) 4.5 Vin (max) (V) 200 Iout (max) (A) 20 Features Controller, Cycle-by-cycle over-current protection, LED Open Detection, LED Short Detection Operating temperature range (°C) -40 to 125 Dimming method Analog, PWM Number of channels 1 Rating Catalog
Input voltage type DC/DC Topology Buck Vin (min) (V) 4.5 Vin (max) (V) 200 Iout (max) (A) 20 Features Controller, Cycle-by-cycle over-current protection, LED Open Detection, LED Short Detection Operating temperature range (°C) -40 to 125 Dimming method Analog, PWM Number of channels 1 Rating Catalog
SOIC (D) 8 29.4 mm² 4.9 x 6
  • 4.5V to 15V input voltage range
  • Wide application voltage up to 500V
  • LED common anode connection
  • Adjustable switching frequency: 50kHz ~ 1MHz
  • Adative Off-Time mode
  • Advanced dimming options:
    • Analog dimming (1000:1)
    • PWM dimming (50ns pulse width, 1000:1 @ 20kHz)
    • Flexible dimming (100,000:1)
  • Low standby current
  • Full protection features:
    • LED open and short protection
    • Cycle-by-cycle current limit
    • Sense resistor open and short protection
  • Package: SOIC-8 and SOT583
  • 4.5V to 15V input voltage range
  • Wide application voltage up to 500V
  • LED common anode connection
  • Adjustable switching frequency: 50kHz ~ 1MHz
  • Adative Off-Time mode
  • Advanced dimming options:
    • Analog dimming (1000:1)
    • PWM dimming (50ns pulse width, 1000:1 @ 20kHz)
    • Flexible dimming (100,000:1)
  • Low standby current
  • Full protection features:
    • LED open and short protection
    • Cycle-by-cycle current limit
    • Sense resistor open and short protection
  • Package: SOIC-8 and SOT583

The TPS922152 is non-synchronous Average-Current control Buck LED drivers with 4.5V to 500V wide application voltage range. The TPS922152 is capable of driving external switching FETs at adjustable switching frequency up to 1MHz with Adative Off-Time (AOT) mode. The AOT mode allows low LED current ripple and fast transient response with small output capacitor. The device also supports single layer PCB design and common anode connection.

The TPS922152 supports high-accuracy and high-ratio analog dimming by configuring analog signals through the ADIM input pins. The full-scale output current is configured by an external resistor and high analog dimming ratio is achievable by the unique corrective sensing. The device also supports high-frequency and high-ratio PWM dimming by configuring simple high and low signals through the PDIM input pins. High-accuracy and high-ratio of PWM dimming is achievable by the unique inductive fast dimming (IFD).

The TPS922152 also provides multiple systematic protections, including LED open and short, sense resistor open and short.

The TPS922152 is non-synchronous Average-Current control Buck LED drivers with 4.5V to 500V wide application voltage range. The TPS922152 is capable of driving external switching FETs at adjustable switching frequency up to 1MHz with Adative Off-Time (AOT) mode. The AOT mode allows low LED current ripple and fast transient response with small output capacitor. The device also supports single layer PCB design and common anode connection.

The TPS922152 supports high-accuracy and high-ratio analog dimming by configuring analog signals through the ADIM input pins. The full-scale output current is configured by an external resistor and high analog dimming ratio is achievable by the unique corrective sensing. The device also supports high-frequency and high-ratio PWM dimming by configuring simple high and low signals through the PDIM input pins. High-accuracy and high-ratio of PWM dimming is achievable by the unique inductive fast dimming (IFD).

The TPS922152 also provides multiple systematic protections, including LED open and short, sense resistor open and short.

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Documentación técnica

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* Data sheet TPS922152 Average-Current Buck LED Driver with Wide Range Dimming datasheet PDF | HTML 17 mar 2026
EVM User's guide TPS92215xEVM Buck LED Driver Evaluation Module PDF | HTML 11 feb 2026

Diseño y desarrollo

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Placa de evaluación

TPS922152EVM — Módulo de evaluación TPS922152

El módulo de evaluación (EVM) TPS922152EVM de Texas Instruments ayuda a los diseñadores a evaluar el funcionamiento y el rendimiento del conductor buck para LED (diodo emisor de luz) TPS922152. El TPS922152EVM opera con un rango de tensión de entrada de 4.5 V a 15 V, un tensión de bus de 60 V y (...)
Guía del usuario: PDF | HTML
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
SOIC (D) 8 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

Soporte y capacitación

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