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TPS92074

ACTIVO

Controlador LED PFC reductor no aislado con control de referencia digital

Detalles del producto

Input voltage type AC/DC Topology Buck, Buck-Boost Vin (min) (V) 11 Vin (max) (V) 18 Vout (max) (V) 120 Vout (min) (V) 9 Iout (max) (A) 2 Iq (typ) (mA) 1.3 Features Adjustable Switch Frequency, Soft Start, Thermal shutdown Operating temperature range (°C) -40 to 125 Dimming method Analog, PWM Number of channels 1 Rating Catalog
Input voltage type AC/DC Topology Buck, Buck-Boost Vin (min) (V) 11 Vin (max) (V) 18 Vout (max) (V) 120 Vout (min) (V) 9 Iout (max) (A) 2 Iq (typ) (mA) 1.3 Features Adjustable Switch Frequency, Soft Start, Thermal shutdown 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 SOT-23-THN (DDC) 6 8.12 mm² 2.9 x 2.8
  • Controlled Reference Derived PFC
  • Digital 50/60 Hz Synchronization
  • Constant LED current operation
  • Single Winding Magnetic Configurations
  • Low Typical Operating Current
  • Fast Start-up
  • Overvoltage Protection
  • Feedback Short-Circuit Protection
  • Wide Temperature Operation Range
  • Low BOM Cost and Small PCB Footprint
  • Patent Pending Digital Architecture
  • 8-Pin SOIC and 6-Pin TSOT Available
  • Controlled Reference Derived PFC
  • Digital 50/60 Hz Synchronization
  • Constant LED current operation
  • Single Winding Magnetic Configurations
  • Low Typical Operating Current
  • Fast Start-up
  • Overvoltage Protection
  • Feedback Short-Circuit Protection
  • Wide Temperature Operation Range
  • Low BOM Cost and Small PCB Footprint
  • Patent Pending Digital Architecture
  • 8-Pin SOIC and 6-Pin TSOT Available

The TPS92074 is a hybrid power factor controller (PFC) optimized for driving LED lighting solutions. The device monitors the converter rectified AC waveform using an internal, low-power, digital controller. The controller and DAC generate a synchronized triangular reference to regulate the output current. By allowing for some variation in the LED current over a line cycle and maintaining a regulated overall average current, high power factor solutions can be achieved.

Using a constant off-time control, the solution achieves low component count, high efficiency and inherently provides variation in the switching frequency. This variation creates an emulated spread spectrum effect easing the converters EMI signature and allowing a smaller input filter.

The TPS92074 also includes standard features: current limit, overvoltage protection, thermal shut-down, and VCC undervoltage lockout, all in packages

The TPS92074 is a hybrid power factor controller (PFC) optimized for driving LED lighting solutions. The device monitors the converter rectified AC waveform using an internal, low-power, digital controller. The controller and DAC generate a synchronized triangular reference to regulate the output current. By allowing for some variation in the LED current over a line cycle and maintaining a regulated overall average current, high power factor solutions can be achieved.

Using a constant off-time control, the solution achieves low component count, high efficiency and inherently provides variation in the switching frequency. This variation creates an emulated spread spectrum effect easing the converters EMI signature and allowing a smaller input filter.

The TPS92074 also includes standard features: current limit, overvoltage protection, thermal shut-down, and VCC undervoltage lockout, all in packages

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Documentación técnica

star =Principal documentación para este producto seleccionada por TI
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Tipo Título Fecha
* Data sheet Non-Isolated, Buck PFC LED Driver with Digital Reference Control datasheet 26 jul 2013
White paper Common LED Functions and LED Driver Design Considerations 21 sep 2020

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.

Esquema

TPS92074 Design Tool (Rev. A)

SLVC518A.ZIP (367 KB)
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 (...)
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
SOIC (D) 8 Ultra Librarian
SOT-23-THN (DDC) 6 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

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.

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