非隔離AC-DC

MT7819BD是一款工作于零電流導(dǎo)通，峰值電流關(guān)斷的臨界導(dǎo)通模式（CRM，Critical Conduction Mode）高精度LED恒流控制芯片，主要應(yīng)用于非隔離降壓型LED電源系統(tǒng)。\n臨界導(dǎo)通模式確保了MT7819BD可以控制功率開關(guān)在電感電流為零時(shí)刻開啟，減小了功率管的開關(guān)損耗，確保了系統(tǒng)具有95%以上的峰值效率。電感電流谷值為零的臨界導(dǎo)通模式結(jié)合經(jīng)過輸入母線電壓補(bǔ)償后的峰值電感電流，確保了輸出LED電流的高精度，并且具有良好的線性調(diào)整率和負(fù)載調(diào)整率。對(duì)電感量變化不敏感，可以使用工字電感。\n芯片內(nèi)置高壓功率MOS管,外圍電路簡(jiǎn)單，系統(tǒng)成本低。\nMT7819BD工作電壓寬 ? 臨界導(dǎo)通模式，對(duì)電感不敏感\(zhòng)n? 峰值效率高達(dá)95%以上?\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(hù)\n? LED開路保護(hù)\n? 前沿消隱控制\n? 欠壓鎖定保護(hù)(UVLO)\n? 過溫保護(hù)\n? DIP7封裝;

Maxic

美芯晟

High Efficiency High Precision Buck Constant Current Driver

文件：168.91 Kbytes 頁數(shù)：1 Pages

MAXIC

美芯晟

QUICK-FIT TERMINALS

[KEYSTONE] AVAILABLE IN BRASS OR STEEL TABS ? Ideal for rugged multi-insertion applications ? Pre-assembled header reduces PC assembly costs ? Increases PC board retention strength ? Keeps terminals perpendicular ? Maintains position for wave soldering

文件：515.97 Kbytes 頁數(shù)：1 Pages

ETCList of Unclassifed Manufacturers

未分類制造商

2.7 V to 5.5 V, 200 kSPS 8-Bit Sampling ADC

GENERAL DESCRIPTION The AD7819 is a high speed, microprocessor-compatible, 8-bit analog-to-digital converter with a maximum throughput of 200 kSPS. The converter operates off a single 2.7 V to 5.5 V supply and contains a 4.5 μs successive approximation A/D converter, track/hold circuitry, on-chip

文件：146.19 Kbytes 頁數(shù)：11 Pages

AD

亞德諾

2.7 V to 5.5 V, 200 kSPS 8-Bit Sampling ADC

GENERAL DESCRIPTION The AD7819 is a high speed, microprocessor-compatible, 8-bit analog-to-digital converter with a maximum throughput of 200 kSPS. The converter operates off a single 2.7 V to 5.5 V supply and contains a 4.5 μs successive approximation A/D converter, track/hold circuitry, on-chip

文件：146.11 Kbytes 頁數(shù)：11 Pages

AD

亞德諾