Модуль HW-613 это миниатюрный синхронный DC/DC преобразователь построен на базе микросхемы MP2315 — высокочастотный (частота преобразования 500 кГц) понижающий импульсный преобразователь с встроенными MOSFET ключами. Микросхема обеспечивает выходной ток до 3 ампера, при входных напряжениях от 6 до 24 вольт. Выходное напряжение регулируется подстрочником или задается фиксированным 1.8, 2.5, 3.3, 5, 9 или 12 В.
Микросхема имеет полный набор функций защиты OCP (англоязычная аббревиатура OCP — Over Current Protection/Защита от перегрузки по току) и по температуре. При превышении температуры выше 150 °C, срабатывает тепловая защита, которая отключается при 130 °C.
Модуль HW-613 на базе MP2315 хорошо подходит для замены распространённых стабилизаторов L78xx в корпусе TO220, может применяться в схемах плоскопанельных телевизоров и мониторов, ноутбуках, зарядки различных гаджетов и в схемах питания прочей электроники.
Технические характеристики модуля HW-613/MP2315
- Эффективность преобразования (КПД): до 96%;
- Частота переключения: 500 кГц;
- Входное напряжение: от 4.5 до 24 В;
- Выходное напряжение (регулируемое): от 0.8;
- Выходное напряжение (фиксированное): 1.8 В, 2.5 В, 3.3 В, 5 В, 9 В и 12 В;
- Выходной постоянный ток: до 3 А;
- Защита: от короткого замыкания (OCP), от перегрева;
- Рабочая температура: от -40 °C до +125 °C;
- Защита от переполюсовки: нет;
- Защита от перенапряжения: нет.
- Режим энергосбережения: есть;
- Маркировка на корпусе: AGC , AGCH, AGCD, IAGC, IAGCD, 1AGC и т.д.
- Корпус: 8-pin TSOT23.
Функциональная блок-схема MP2315
Схема включения MP2315
MP2315 требует минимального количества легкодоступных стандартных внешних компонентов и доступен в компактном 8-контактном корпусе TSOT23.
Вывод EN используется для включения и выключения модуля путем подачи логических «1» и «0» соответственно. В модуле присутствует подтягивающий резистор к выводу питания через резистор 200К.
Регулировка выходного напряжения
Выходное напряжение можно регулировать подстрочным резистором (см. ниже)
или задать фиксированным 1.8В, 2.5В, 3.3В, 5В, 9В или 12В. Для использования фиксированных напряжений нужно разрезать дорожку ADJ (см. ниже) и запаять перемычку напротив нужного напряжения.
Если установить 5В, то можно заряжать смартфоны, планшеты, mp3 плееры, навигаторы и прочие переносные, карманные устройства. От данного модуля можно заряжать даже Iphone и Ipad, поскольку обеспечивает необходимый выходной ток.
Подключение модуля HW-613
Модуль имеет четыре главных контакта, напряжение питания от 6 до 24В постоянного тока подаётся на разъём IN+ («+» от источника питания), на VO+ подключается («+») нагрузка и GND — общий контакт. EN — включение/выключение модуля (1/0).
Материалы
MP-2315 | Converters | High Efficiency 3A, 24V, 500kHz, with AAM (light load mode), Synchronous Step Down Converter in TSOT23-8 | MPS | Monolithic Power Systems
Datasheet MP2315_r1.01.pdf
Преобразователь на MP 2315, для питания и заряда устройств через USB
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