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AC-DC Преобразователи, Off-Line коммутаторы

LNK616DG-TL, SO-7 AC-DC Controllers & Regulators

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LNK616DG-TL, SO-7 AC-DC Controllers & Regulators

LinkSwitch™-II dramatically simplifies low power CV/CC charger designs by eliminating an optocoupler and secondary control circuitry. The device introduces a revolutionary control technique to provide very tight output voltage and current regulation, compensating for transformer and internal parameter tolerances along with input voltage variations. The device incorporates a 700V power MOSFET, a novel ON/OFF control state machine, a high-voltage switched current source for self-biasing, frequency jittering, cycle-by-cycle current limit and hysteretic thermal shutdown circuitry onto a monolithic IC. It compensates for transformer inductance tolerances, input line voltage variations and external component temperature variations. Auto-restart protection reduces power delivered by >95% for output short-circuit and control loop faults (open and shorted components). Applications includes chargers for cell/cordless phones, PDAs, MP3/portable audio devices, adapters and LED drivers. • Output power of 5.5W (adapter), 6.1W (open frame) at 85-265VAC • Energy efficient, accurate CV/CC switcher for adapters and chargers • Dramatically simplifies CV/CC converters, EcoSmart™ energy efficient • Eliminates optocoupler, all secondary CV/CC control and all control loop compensation circuitry • Very tight IC parameter tolerances using proprietary trimming technology • Frequency jittering greatly reduces EMI filter cost, meets all global energy efficiency regulations • Meets high-voltage creepage requirements between DRAIN and all other pins both on PCB and at package • No-load consumption below 30mW at 230VAC with optional external bias winding • ON/OFF control provides constant efficiency down to very light loads • No current sense resistors, maximizes efficiency, hysteretic thermal shutdown

Класс Мощности	5.5Вт
Количество Выводов	8вывод(-ов)
Линейка Продукции	LinkSwitch-II Series
Максимальная Рабочая Температура	150°C
Максимальное Входное Напряжение AC	265В
Минимальная Рабочая Температура	-40°C
Минимальное Входное Напряжение AC	85В
Стиль Корпуса Преобразователя AC / DC	SOIC
Топология (Общая Схема Соединений)	Обратноходовой
Уровень Чувствительности к Влажности (MSL)	MSL 1-Безлимитный
Вес, г	0.24