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ПроизводительLinear Technology
СерияLT3761-1

60VIN LED Controller with Internal PWM Generator

Datasheets

  • Скачать » Datasheet PDF, 593 Кб, Файл закачен: 2 окт 2017
    LT3761: 60VIN LED Controller with Internal PWM Generator Data Sheet
    Выписка из документа ↓
    LT3761/LT3761-1
    60VIN LED Controller with
    Internal PWM Generator
    Features n n n n n n n n n n n n Description 3000:1 True Color PWM™ Dimming for LEDs
    Wide VIN Range: 4.5V to 60V
    Rail-to-Rail Current Sense Range: 0V to 80V
    Programmable PWM Dimming Signal Generator
    Constant Current (±3%) and Constant-Voltage
    (±2%) Regulation
    Analog Dimming
    Drives LEDs in Boost, SEPIC, Inverting, Buck Mode,
    Buck-Boost Mode, or Flyback Configuration
    Output Short-Circuit Protected Boost
    Open LED Protection
    Adjustable Switching Frequency: 100kHz to 1MHz
    Programmable VIN UVLO with Hysteresis
    C/10 Indication for Battery Chargers
    Low Shutdown Current: 100V with Ground
    Referred Current Sense
    n Grounded Anode LEDs
    n Accurate Current Limited Voltage Regulators
    n L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and
    True Color PWM is a trademark of Analog Devices, Inc. All other trademarks are the property of ...

Цены

Цена LT3761LT3761 на РадиоЛоцман.Цены — от 1 035 до 483 руб.
Драйверы систем светодиодного освещения 60V LED Controller with Internal PWM Generator
ПоставщикПроизводительНаименованиеЦена
5 элементLinear TechnologyLT3761IMSE#PBFот 1 035 руб.
ЭлитанAnalog DevicesLT3761EMSE320 руб.
ДКО ЭлектронщикLinear TechnologyLT3761AIMSE#PBFпо запросу
КремнийLinear TechnologyLT3761IMSE TRPBFпо запросу
ЭлектроПластLinear TechnologyLT3761IMSE#PBFпо запросу
Все 16 предложений от 11 поставщиков »

Корпус / Упаковка / Маркировка

Параметры

LT3761EMSE-1#PBFLT3761EMSE-1#TRPBFLT3761IMSE-1#PBFLT3761IMSE-1#TRPBF
АрхитектураConstant Frequency Current ModeConstant Frequency Current ModeConstant Frequency Current ModeConstant Frequency Current Mode
Demo BoardsDC1772ADC1772ADC1772ADC1772A
Design ToolsLTspice FileLTspice FileLTspice FileLTspice File
Dimming3000:1 PWM3000:1 PWM3000:1 PWM3000:1 PWM
Экспортный контрольнетнетнетнет
Основные особенностиResistor Set Switching Frequency, Rail-to-Rail Current Sense, Open LED ProtectionResistor Set Switching Frequency, Rail-to-Rail Current Sense, Open LED ProtectionResistor Set Switching Frequency, Rail-to-Rail Current Sense, Open LED ProtectionResistor Set Switching Frequency, Rail-to-Rail Current Sense, Open LED Protection
Тактовая частота, kHz1000100010001000
Ishutdown, мкА0.10.10.10.1
Isupply, мА1.81.81.81.8
Max Number of LEDs25+25+25+25+
Monolithicнетнетнетнет
Количество выходов1111
Рабочий диапазон температур, °Cот 0 до 85от 0 до 85от -40 до 85от -40 до 85
Выходной ток, A10101010
Switch Current, A25252525
Synchronousнетнетнетнет
TopologyBuck, Boost, Buck-Boost, Sepic, LED DriverBuck, Boost, Buck-Boost, Sepic, LED DriverBuck, Boost, Buck-Boost, Sepic, LED DriverBuck, Boost, Buck-Boost, Sepic, LED Driver
Vin Max, В60606060
Vin Min, В4.54.54.54.5
Vout Max, В100100100100

Экологический статус

LT3761EMSE-1#PBFLT3761EMSE-1#TRPBFLT3761IMSE-1#PBFLT3761IMSE-1#TRPBF
RoHSСовместимСовместимСовместимСовместим

Другие варианты исполнения

LT3761 LT3761

Статьи

  • Скачать » Статьи - LT Journal PDF, 2.3 Мб, Файл опубликован: 18 окт 2012
    Accurate PWM LED Dimming without External Signal Generators, Clocks or µControllers
    Выписка из документа ↓
    Accurate PWM LED Dimming without External Signal
    Generators, Clocks or ВµControllers
    Keith Szolusha LEDs can be dimmed in two ways: analog and pulse-width modulation (PWM) dimming.
    Analog dimming changes LED light output by simply adjusting the DC current in the string,
    while PWM dimming acheives the same effect by varying the duty cycle of a constant
    current in the string to effectively change the average current in the string. Despite its
    attractive simplicity, analog dimming is inappropriate for many applications because it
    loses dimming accuracy by about 25%+ at only 10:1 brightness levels, and it skews the
    color of the LEDs. In contrast, PWM dimming can produce 3000:1 and higher dimming
    ratios (at 100Hz) without any significant loss of accuracy, and no change in LED color.
    The LT3761 combines the simplicity of
    analog dimming with the accuracy of
    PWM dimming by generating its own
    PWM signal. High dimming ratios are
    possible by adjusting a simple DC signal
    at its dimming input—no additional
    PWM-generating microcontrollers, oscillators or signal generators are required.
    The LT3761’s internal PWM signal
    can produce 25:1 dimming, while it
    can still deliver up to 3000:1 dimming with an external PWM signal.
    HIGH POWER LED DRIVER The LT3761 is a high power LED driver
    similar to the LT3755-2 and LT3756-2
    family. It is a 4.5V-to-60V input to ...

Модельный ряд

Серия: LT3761-1 (4)

Классификация производителя

  • Power Management > Battery Management > Battery Charger IC > Switching Battery Chargers
  • Power Management > LED Driver ICs > Step-Up (Boost) LED Drivers | Step-Down (Buck) LED Drivers | Buck-Boost LED Drivers | Multitopology LED Driver
  • Power Management > Supercapacitor Chargers
  • Space & Harsh Environment > Extended Temperature Plastic (H & MP) > Extended Temperature (H & MP) LED Drivers

На английском языке: Datasheet Linear Technology LT3761-1

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Срезы ↓
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Диапазон измеряемых температур: от 20 до +800 °C
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Осциллограф Rohde Schwarz RTB2002
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