Мікросхема SI3402-B-GMR PoE
Мікросхема SI3402-B-GMR PoE
Умови повернення та обміну
Умови гарантії
83,83 ₴
Мін. сума замовлення у продавця 50 ₴
В наявності
Доставка
Самовивіз в м. Київ
Безкоштовно
Нова Пошта
70 - 90 ₴
Оплата
Оплата на картку «Приватбанк»
Оплата на картку «Monobank»
Оплата за реквізитами на розрахунковий рахунок
Оплата під час самовивезення по м. офіс компанії
Опис
SI3402-B-GMR
Applications Description The Si3402 integrates all power management and control functions required in a Power-over-Ethernet (PoE) powered device (PD) application. The Si3402 converts the high voltage supplied over the 10/100/1000BASE-T Ethernet connection into a regulated, low-voltage output supply. The optimized architecture of the Si3402 minimizes the solution footprint, reduces external BOM cost, and enables the use of low-cost external components while maintaining high performance. The Si3402 integrates the required diode bridges and transient surge suppressor, thus enabling direct connection of the IC to the Ethernet RJ-45 connector. The switching power FET and all associated functions are also integrated. The integrated switching regulator supports isolated (flyback) and nonisolated (buck) converter topologies. The Si3402 supports IEEE 802.3 Type 1 (Class 3 and below) Powered Device applications. Standard external resistors connected to the Si3402 provide the proper IEEE 802.3 signatures for the detection function and programming of the requested power class. Startup circuits ensure well-controlled initial operation of both the hotswap switch and the voltage regulator. The Si3402 is available in a low-profile, 20-pin, 5 x 5 mm QFN package. The Si3402-B is a pin-compatible replacement of the obsolete Si3402-A. PCB layouts designed for Si3402-A can be reused with Si3402-B, but some component value changes are required.
Pin-compatible replacement for the obsolete Si3402-A
IEEE 802.3 standard-compliant solution, including pre-standard (legacy) PoE support
Highly-integrated IC enables compact solution footprints Minimal external components
Integrated diode bridges and transient surge suppressor
Integrated switching regulator controller with on-chip power FET
Integrated dual current-limited hotswap switch
Programmable classification circuit
Incorporates switcher EMIreduction techniques.
Supports non-isolated and isolated switching topologies
Comprehensive protection circuitry
Transient overvoltage protection
Undervoltage lockout
Early power-loss indicator
Thermal shutdown protection
Foldback current limiting
Low-profile 5 x 5 mm 20-pin QFN
RoHS-compliant
Voice over IP telephones and adapters
Wireless access points
Security cameras
Point-of-sale terminals
Internet appliances
Network devices
High power applications
Характеристики
Код товару
СК-15(10)
Виробник
Power