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鎮ㄥソ锛屾杩庝締(l谩i)鍒扮董搴�(k霉)闆诲瓙甯傚牬(ch菐ng)缍�(w菐ng) 鐧婚寗 | 鍏嶈不(f猫i)娉ㄥ唺(c猫)

鎮ㄦ墍鍦ㄧ殑浣嶇疆锛�闆诲瓙鍏冨櫒浠堕噰璩�(g貌u)缍�(w菐ng) > IC鐧剧 > LM3281

LM3281 鐧�(f膩)甯冩檪(sh铆)闁� 鏅�(sh铆)闁擄細2025/5/6 16:04:25 鏌ョ湅 闁辫畝锛�29

LM3281鏄竴娆惧柈閫氶亾銆佷綆鍣伈銆佷綆澹撳樊绶氭�х┅(w臎n)澹撳櫒锛圠DO锛夛紝鍏锋湁楂橀浕婧愭姂鍒舵瘮锛圥SRR锛夊拰鍑鸿壊鐨勭灛鎱�(t脿i)闊挎噳(y墨ng)鎬ц兘銆傝┎鍣ㄤ欢閬╃敤浜庡皪(du矛)鍣伈鏁忔劅鐨勬噳(y墨ng)鐢ㄥ牬(ch菐ng)鏅�锛屽灏勯牷锛圧F锛夐浕璺�侀煶闋昏ō(sh猫)鍌欏拰绮惧瘑妯℃摤闆昏矾绛�銆傚叾瑷�(sh猫)瑷�(j矛)鐩(bi膩o)鏄彁渚涚┅(w臎n)瀹氱殑杓稿嚭闆诲锛屽悓鏅�(sh铆)鏈�澶ч檺搴﹀湴娓涘皯杓稿叆闆绘簮鍣伈灏�(du矛)绯荤当(t菕ng)鐨勫奖闊�銆�
銆�銆�LM3281鏀寔杓冨鐨勮几鍏ラ浕澹撹寖鍦�锛屽苟鍏峰倷閬�(gu貌)娴佷繚璀�(h霉)銆侀亷(gu貌)婧繚璀�(h霉)绛夊姛鑳�锛岀⒑淇濆湪鍚勭ó宸ヤ綔姊濅欢涓嬬殑鍙潬鎬у拰绌�(w臎n)瀹氭�с��

鍙冩暩(sh霉)

杓稿叆闆诲鑼冨湇锛�2.7V 鑷� 5.5V
銆�銆�杓稿嚭闆诲鑼冨湇锛�0.8V 鑷� 3.3V锛堟閫�(j矛n)鐐�50mV锛�
銆�銆�杓稿嚭闆绘祦锛氭渶楂�300mA
銆�銆� dropout闆诲锛氬吀鍨嬪�肩偤350mV锛堝湪Iout=300mA鏅�(sh铆)锛�
銆�銆�闆绘簮鎶戝埗姣旓紙PSRR锛夛細鍦�1kHz鏅�(sh铆)鐐�75dB
銆�銆�宸ヤ綔婧害鑼冨湇锛�-40鈩� 鑷� +125鈩�
銆�銆�灏佽褰㈠紡锛歋OT-23, X2SON

鐗规��

LM3281閲囩敤浜嗗厛閫�(j矛n)鐨勫伐钘濊ō(sh猫)瑷�(j矛)锛屼互瀵�(sh铆)鐝�(xi脿n)浣庡櫔鑱插拰楂楶SRR鐗规�с�傚叾鍏�(n猫i)閮ㄩ泦鎴愮殑瑾ゅ樊鏀惧ぇ鍣ㄥ拰甯堕殭鍩烘簴(zh菙n)婧愮⒑淇濅簡杓稿嚭闆诲鐨勭簿纰哄害鍜岀┅(w臎n)瀹氭��銆�
銆�銆�瑭插櫒浠跺叿鏈夊揩閫熺殑璨�(f霉)杓夌灛鎱�(t脿i)闊挎噳(y墨ng)鑳藉姏锛岃兘澶犳湁鏁堟噳(y墨ng)灏�(du矛)璨�(f霉)杓夐浕娴佺殑绐佺劧璁婂寲锛屽緸鑰岄伩鍏嶈几鍑洪浕澹撴尝鍕�(d貌ng)銆傛澶�锛孡M3281閭勯泦鎴愪簡澶氱ó淇濊(h霉)鍔熻兘锛屼緥濡傞亷(gu貌)娴佷繚璀�(h霉)銆佺煭璺繚璀�(h霉)鍜岄亷(gu貌)婧棞(gu膩n)鏂�锛屼互澧炲挤(qi谩ng)绯荤当(t菕ng)鐨勯妫掓��銆�
銆�銆�鐢变簬鍏剁穵婀婄殑灏佽灏哄鍜岃純灏戠殑澶栭儴鍏冧欢闇�姹�锛孡M3281闈炲父閬╁悎鐢ㄤ簬绌洪枔鍙楅檺鐨勮ō(sh猫)瑷�(j矛)鐠�(hu谩n)澧冦�傚畠寤ｆ硾鎳�(y墨ng)鐢ㄤ簬渚挎敎寮忛浕瀛愯ō(sh猫)鍌�銆佺劇(w煤)绶氶�氫俊妯″鍜屽叾浠栭渶瑕侀珮璩�(zh矛)閲忛浕婧愪緵鎳�(y墨ng)鐨勫牬(ch菐ng)鍚�銆�

鎳�(y墨ng)鐢�

LM3281涓昏鎳�(y墨ng)鐢ㄤ簬浠ヤ笅闋�(l菒ng)鍩燂細
銆�銆�1. 灏勯牷锛圧F锛夋敹鐧�(f膩)鍣ㄤ緵闆�
銆�銆�2. 闊抽牷鏀惧ぇ鍣ㄩ浕婧�
銆�銆�3. 绮惧瘑妯℃暩(sh霉)杞�(zhu菐n)鎻涘櫒锛圓DC锛夊拰鏁�(sh霉)妯¤綁(zhu菐n)鎻涘櫒锛圖AC锛変緵闆�
銆�銆�4. 渚挎敎寮忔秷璨�(f猫i)椤�(l猫i)闆诲瓙鐢�(ch菐n)鍝�
銆�銆�5. 宸ユキ(y猫)鎺у埗瑷�(sh猫)鍌�
銆�銆�6. 閱�(y墨)鐧傞浕瀛愯ō(sh猫)鍌�
銆�銆�鍏朵綆鍣伈鐗规�у拰楂楶SRR浣垮叾鎴愮偤灏�(du矛)闆绘簮璩�(zh矛)閲忚姹傝純楂樼殑鎳�(y墨ng)鐢ㄧ殑鐞嗘兂閬告搰銆�

鏇夸唬鍨嬭櫉(h脿o)

LM3280, LM3282

lm3281鎺ㄨ枽渚涙噳(y墨ng)鍟� 鏇村>

  • 鐢�(ch菐n)鍝佸瀷铏�(h脿o)
  • 渚涙噳(y墨ng)鍟�
  • 鏁�(sh霉)閲�
  • 寤犲晢
  • 灏佽/鎵硅櫉(h脿o)
  • 瑭�(x煤n)鍍�(ji脿)

lm3281璩囨枡 鏇村>

  • 鍨嬭櫉(h脿o)
  • 鎻忚堪
  • 鍝佺墝
  • 闁辫涓嬭級