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LM3560

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Controlador de flash de impulso síncrono con fuentes de corriente de lado alto de 1 A dobles (corrie

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LM3560

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Detalles del producto

Input voltage type DC/DC Topology Boost, current mode Vin (min) (V) 2.5 Vin (max) (V) 5.5 Vout (max) (V) 5.5 Vout (min) (V) 2.5 Iout (max) (A) 2 Iq (typ) (mA) 0.9 Features I2C control, Input/Output Isolation, LED Thermal Monitor, Load Disconnect During Shutdown, OVP, Over Current Protection, Synchronous Rectification Operating temperature range (°C) -40 to 85 Dimming method Analog, PWM Number of channels 2 Rating Catalog
Input voltage type DC/DC Topology Boost, current mode Vin (min) (V) 2.5 Vin (max) (V) 5.5 Vout (max) (V) 5.5 Vout (min) (V) 2.5 Iout (max) (A) 2 Iq (typ) (mA) 0.9 Features I2C control, Input/Output Isolation, LED Thermal Monitor, Load Disconnect During Shutdown, OVP, Over Current Protection, Synchronous Rectification Operating temperature range (°C) -40 to 85 Dimming method Analog, PWM Number of channels 2 Rating Catalog
DSBGA (YZR) 16 5.0625 mm² (— mm × — mm)
  • Dual High-Side Current Sources Allow for Grounded Cathode LED Operation
  • Accurate and Programmable LED Current from 31.25 mA to 2 A
  • Independent LED Current Source Programmability
  • Up to 90% Efficient
  • Ultra-Small Solution Size: < 26 mm2
  • Four Operating Modes: Torch, Flash, Privacy Indicate, and Message Indicator
  • 4-Bit ADC for VLED Monitoring
  • LED Thermal Sensing and Current Scale-Back
  • Hardware Flash and Torch Enable
  • Dual Synchronization Inputs for RF Power Amplifier Pulse Events
  • LED and Output Disconnect During Shutdown
  • Open and Short LED Detection
  • 400-kHz I2C-Compatible Interface
  • Active Low Hardware Reset
  • −40°C to +85°C Ambient Temperature Range
  • Dual High-Side Current Sources Allow for Grounded Cathode LED Operation
  • Accurate and Programmable LED Current from 31.25 mA to 2 A
  • Independent LED Current Source Programmability
  • Up to 90% Efficient
  • Ultra-Small Solution Size: < 26 mm2
  • Four Operating Modes: Torch, Flash, Privacy Indicate, and Message Indicator
  • 4-Bit ADC for VLED Monitoring
  • LED Thermal Sensing and Current Scale-Back
  • Hardware Flash and Torch Enable
  • Dual Synchronization Inputs for RF Power Amplifier Pulse Events
  • LED and Output Disconnect During Shutdown
  • Open and Short LED Detection
  • 400-kHz I2C-Compatible Interface
  • Active Low Hardware Reset
  • −40°C to +85°C Ambient Temperature Range

The LM3560 is a 2-MHz fixed frequency synchronous boost converter with two 1000-mA constant current drivers for high-current white LEDs. The dual high-side current sources allow for grounded cathode LED operation and can be tied together for providing flash currents at up to 2 A through a single LED. An adaptive regulation method ensures the current for each LED remains in regulation and maximizes efficiency.

The LM3560 is controlled via an I2C-compatible interface. Features include an internal 4-bit ADC to monitor the LED voltage, independent LED current control, a hardware flash enable allowing a logic input to trigger the flash pulse, dual TX inputs which force the flash pulse into a low-current torch mode allowing for synchronization to RF power amplifier events or other high-current conditions, and an integrated comparator designed to monitor an NTC thermistor and provide an interrupt to the LED current. Additionally, an active high HWEN input provides a hardware shutdown during system software failures.

The device is available in an ultra-small 16-pin DSBGA package. The 2-MHz switching frequency, overvoltage protection and adjustable current limit allow for the use of tiny, low-profile (1-µH and 2.2-µH) inductors and ceramic (10-µF) capacitors.

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

The LM3560 is a 2-MHz fixed frequency synchronous boost converter with two 1000-mA constant current drivers for high-current white LEDs. The dual high-side current sources allow for grounded cathode LED operation and can be tied together for providing flash currents at up to 2 A through a single LED. An adaptive regulation method ensures the current for each LED remains in regulation and maximizes efficiency.

The LM3560 is controlled via an I2C-compatible interface. Features include an internal 4-bit ADC to monitor the LED voltage, independent LED current control, a hardware flash enable allowing a logic input to trigger the flash pulse, dual TX inputs which force the flash pulse into a low-current torch mode allowing for synchronization to RF power amplifier events or other high-current conditions, and an integrated comparator designed to monitor an NTC thermistor and provide an interrupt to the LED current. Additionally, an active high HWEN input provides a hardware shutdown during system software failures.

The device is available in an ultra-small 16-pin DSBGA package. The 2-MHz switching frequency, overvoltage protection and adjustable current limit allow for the use of tiny, low-profile (1-µH and 2.2-µH) inductors and ceramic (10-µF) capacitors.

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

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Documentación principal Tipo Título Opciones de formato Descargar la versión más reciente en inglés Fecha
* Hoja de datos LM3560 Synchronous Boost Flash Driver With Dual 1-A High-Side Current Sources (2-A Total Flash Current) datasheet (Rev. C) PDF | HTML 22/11/2016
Informe Common LED Functions and LED Driver Design Considerations 21/09/2020
Guía de selección Power Management Guide 2018 (Rev. R) 25/06/2018

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

LM3559EVAL — Placa de evaluación para LM3559

The LM3559/LM3560 Evaluation Board is designed to fully evaluate the LM3559 and LM3560 Synchronous Boost Converter with dual 900mA High Side Flash LED Drivers (LM3559) or dual 1000mA High Side Flash Drivers (LM3560) and I2C-Compatible Interface.

Guía del usuario: PDF
Productos y hardware compatibles
En inventario
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Controlador o biblioteca

LM3560SW-LINUX — Controlador Linux para LM3560

The Linux driver supports the LM3560 Flash Driver. The Linux driver supports communication through the I2C bus and interfaces with the V4L2 sub-system.

 

Linux Mainline Status

Available in Linux Main line: Yes
Available through git.ti.com: N/A

Supported Devices:

  • lm3560

 

Linux Source Files

The files (...)

Productos y hardware compatibles
GUI para el módulo de evaluación (EVM)

SNVC049 — LM3560 Graphical User Interface

Productos y hardware compatibles
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
DSBGA (YZR) 16 Ultra Librarian
Se aplican los Términos y condiciones estándar de TI para los elementos de evaluación.

Pedidos y calidad

Soporte y capacitación

Foros de TI E2E™ con asistencia técnica de los ingenieros de TI

Ver todos los temas del foro en inglés

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