Inicio Gestión de la energía Controladores LED Controladores LED de iluminación

LM2758

ACTIVO

Controlador LED de flash de capacitor conmutado en encapsulado DSBGA

Detalles del producto

Input voltage type DC/DC Topology Charge pump, current mode Vin (min) (V) 2.7 Vin (max) (V) 5.5 Vout (max) (V) 5.5 Vout (min) (V) 2.7 Iout (max) (A) 0.7 Iq (typ) (mA) 4 Features Enable, True Shutdown Operating temperature range (°C) -40 to 85 Dimming method PWM Number of channels 1 Rating Catalog
Input voltage type DC/DC Topology Charge pump, current mode Vin (min) (V) 2.7 Vin (max) (V) 5.5 Vout (max) (V) 5.5 Vout (min) (V) 2.7 Iout (max) (A) 0.7 Iq (typ) (mA) 4 Features Enable, True Shutdown Operating temperature range (°C) -40 to 85 Dimming method PWM Number of channels 1 Rating Catalog
DSBGA (YZR) 12 3.9375 mm² 2.25 x 1.75
  • Up to 700-mA Output Current
  • 90% Peak Efficiency
  • Indicator, Torch, and Flash Modes
  • Time-out Circuitry Limits Flash Duration to 814 Milliseconds (Typical)
  • Adaptive 1× and 1.5× Gains for Maximum Efficiency
  • True Shutdown
  • Internal Soft-Start Eliminates Inrush Current
  • Ultra-Small Solution Size
    • No Inductor, Only 4 Capacitors and a Resistor Required
    • 2.022 mm × 1.527 mm × 0.6 mm Thin DSBGA package
  • Up to 700-mA Output Current
  • 90% Peak Efficiency
  • Indicator, Torch, and Flash Modes
  • Time-out Circuitry Limits Flash Duration to 814 Milliseconds (Typical)
  • Adaptive 1× and 1.5× Gains for Maximum Efficiency
  • True Shutdown
  • Internal Soft-Start Eliminates Inrush Current
  • Ultra-Small Solution Size
    • No Inductor, Only 4 Capacitors and a Resistor Required
    • 2.022 mm × 1.527 mm × 0.6 mm Thin DSBGA package

The LM2758 device is an integrated low-noise, high-current switched capacitor DC-DC converter with a regulated current sink. The device is capable of driving loads up to 700 mA from a single-cell Li-Ion battery. Maximum efficiency is achieved over the input voltage range by actively selecting the proper gain based on the LED forward voltage and current requirements.

One external low-power resistor sets the desired current for indicator, torch, and flash modes. To protect the devices and the flash LED, internal time-out circuitry turns off the LM2758 in case of a faulty prolonged flash mode. Internal soft-start circuitry limits the amount of inrush current during start-up.

For all available packages, see the orderable addendum at the end of the data sheet.

The LM2758 device is an integrated low-noise, high-current switched capacitor DC-DC converter with a regulated current sink. The device is capable of driving loads up to 700 mA from a single-cell Li-Ion battery. Maximum efficiency is achieved over the input voltage range by actively selecting the proper gain based on the LED forward voltage and current requirements.

One external low-power resistor sets the desired current for indicator, torch, and flash modes. To protect the devices and the flash LED, internal time-out circuitry turns off the LM2758 in case of a faulty prolonged flash mode. Internal soft-start circuitry limits the amount of inrush current during start-up.

For all available packages, see the orderable addendum at the end of the data sheet.

Descargar Ver vídeo con transcripción Video

Documentación técnica

star =Principal documentación para este producto seleccionada por TI
No se encontraron resultados. Borre su búsqueda y vuelva a intentarlo.
Ver todo 3
Tipo Título Fecha
* Data sheet LM2758 Switched Capacitor Flash LED Driver in DSBGA Package datasheet (Rev. E) PDF | HTML 03 may 2016
White paper Common LED Functions and LED Driver Design Considerations 21 sep 2020
EVM User's guide AN-1695 LM2758 Flash LED Driver Evaluation Board (Rev. A) 30 abr 2013

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.

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
DSBGA (YZR) 12 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

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 preguntas sobre la calidad, el paquete o el pedido de productos de TI, consulte el soporte de TI. ​​​​​​​​​​​​​​

Videos