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Главная/Стабилизаторы и DC-DC/AC-DC LED Drivers/LM3445

LM3445

Texas InstrumentsNeeds adaptationSOP-8

Аналоги и замены (1)

OEM part number

LM3445

Texas Instruments

Стабилизаторы и DC-DC · AC-DC LED Drivers

CN part number

BP2831A

BPS

Стабилизаторы и DC-DC · AC-DC LED Drivers

Needs adaptationPartialSOP-8
TRIAC dimmable buck80-277VACCRM

Комментарии об отличиях

LM3445 ↔ BP2831A

LM3445: adaptive constant off-time AC/DC buck LED driver, TRIAC dim decoder, 80-277VAC, adjustable frequency, bleeder circuit для proper TRIAC firing, passive PFC, thermal shutdown 165°C, VSSOP-10/SOIC-14. BP2831A: non-isolated buck offline LED driver, TRIAC dimmable, CRM, 85-265VAC, 500V MOSFET, ±5% current accuracy, SOP-8. ОТЛИЧИЯ: (1) LM3445 имеет встроенный TRIAC dim decoder с ASNS/BLDR/DIM pins (7 dedicated pins), BP2831A — упрощенный TRIAC interface (1-2 pin); (2) LM3445 — SOIC-14/VSSOP-10, BP2831A — SOP-8 (разная распиновка и footprint); (3) LM3445 имеет active bleeder для TRIAC holding current, BP2831A — passive; (4) switching frequency LM3445 250kHz vs BP2831A ~65kHz. Требуется полная адаптация PCB.

Информация предоставлена в справочных целях. Перед внедрением любого аналога обязательно сверьте технические характеристики, температурные режимы и сертификаты безопасности в актуальных даташитах производителей. Ответственность за финальный выбор компонента и его применение несёт инженер.