可控硅調光

MT7890是一款工作于零電流導通，峰值電流關斷的臨界導通模式（CRM， Critical Conduction Mode）高精度LED恒流控制芯片，主要應用于BUCK，Fly-back LED電源系統(tǒng)。MT7890支持高功率因數的應用，PF可達到0.8以上。\n臨界導通模式確保了MT7890可以控制功率開關在電感電流為零時刻開啟，減小了功率管的開關損耗。電感電流臨界導通控制模式結合母線電壓補償，確保了輸出LED電流的高精度，并且具有良好的線性調整率和負載調整率。對電感量變化不敏感，可以使用工字電感。MT7890芯片外置高壓功率MOS管,可根據輸出需求進行選擇。外圍電路簡單，系統(tǒng)成本低。\nM ? 兼容可控硅調光\n? 支持高PF應用\n? 寬范圍的調光兼容性\n? 調光深度可低于1%\n? 調光曲線符合NEMA SSL6標準\n? 高精度LED恒流電流\n? 逐周期峰值電流控制\n? LED短路保護\n? LED可調開路保護\n? 欠壓鎖定保護(UVLO)\n? 過熱自動調節(jié)\n? SOP8封裝;

Maxic

美芯晟

TRIAC Dimmable Constant Current LED Driver

文件：140.68 Kbytes 頁數：1 Pages

MAXIC

美芯晟

1000V High Voltage Monitor IC

■ FEATURES ● AEC-Q100 Grade 1 Qualified ● Operation Voltage Range 2.2V to 5.5V ● Common Mode Input Voltage Range 1000V ● Differential Input Voltage ±1000V ● High Precision Attenuation Rate ±1 (Ta = ?40°C to 125°C) ● High Input Resistance 30MΩ min. ● Integrated EMI filter ● Operating Tempe

文件：2.63415 Mbytes 頁數：19 Pages

NJRC

日本無線

1000V High Voltage Monitor IC

■ FEATURES ● AEC-Q100 Grade 1 Qualified ● Operation Voltage Range 2.2V to 5.5V ● Common Mode Input Voltage Range 1000V ● Differential Input Voltage ±1000V ● High Precision Attenuation Rate ±1 (Ta = ?40°C to 125°C) ● High Input Resistance 30MΩ min. ● Integrated EMI filter ● Operating Tempe

文件：2.63415 Mbytes 頁數：19 Pages

NJRC

日本無線

1000V High Voltage Monitor IC

■ FEATURES ● AEC-Q100 Grade 1 Qualified ● Operation Voltage Range 2.2V to 5.5V ● Common Mode Input Voltage Range 1000V ● Differential Input Voltage ±1000V ● High Precision Attenuation Rate ±1 (Ta = ?40°C to 125°C) ● High Input Resistance 30MΩ min. ● Integrated EMI filter ● Operating Tempe

文件：2.63415 Mbytes 頁數：19 Pages

NJRC

日本無線