Non-isolated APFC BUCK LED Driver

DESCRIPTION The MT7844S is a high-PF, non-isolate LED Driver IC. The floating-ground, high-side BUCK topology makes full wave detection possible. High precision output current is achieved. MT7844S works in Quasi-Resonant Mode (QRM), which improves both of efficiency and EMI performance. The

文件：263.42 Kbytes 頁數(shù)：2 Pages

MAXIC

美芯晟

Non-isolated APFC BUCK LED Driver

文件：155.18 Kbytes 頁數(shù)：1 Pages

MAXIC

美芯晟

Non-isolated APFC BUCK LED Driver

DESCRIPTION The MT7844S is a high-PF, non-isolate LED Driver IC. The floating-ground, high-side BUCK topology makes full wave detection possible. High precision output current is achieved. MT7844S works in Quasi-Resonant Mode (QRM), which improves both of efficiency and EMI performance. The

文件：263.42 Kbytes 頁數(shù)：2 Pages

MAXIC

美芯晟

APFC非隔離AC-DC

MT7844S是一款高功率因數(shù)、非隔離LED驅(qū)動芯片。 它通過采用浮地、高端檢測，降壓式開關(guān)電源的架構(gòu)實現(xiàn)了全周期檢測。通過內(nèi)部集成的高壓供電電路，MT7844S節(jié)省了啟動電阻和供電二極管，從而節(jié)省了成本。 MT7844S工作在準諧振模式，同時使效率和抗電磁干擾的性能都得到提升。\nMT7844S內(nèi)部集成了多重的保護功能，比如過壓保護、過流保護、過溫補償?shù)鹊?，提高了可靠性，并且所有保護均具體自恢復(fù)功能。內(nèi)置550V高壓MOSFET，精簡了外圍電路。 ? 單級功率因數(shù)調(diào)制（PF>0.9）\n? 高壓供電，無需啟動及供電電路\n? 高精度LED輸出電流 (±3%)?\n? 優(yōu)異的線性和負載調(diào)整度 (±2%)?\n? 準諧振工作模式?\n? 多重保護機制\n? SOP7封裝;

Maxic

美芯晟