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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 > LM3421

LM3421 鐧�(f膩)甯冩檪(sh铆)闁� 鏅�(sh铆)闁擄細2025/5/6 12:23:42 鏌ョ湅 闁辫畝锛�34

LM3421鏄竴娆剧敱寰峰窞鍎�鍣紙TI锛夌敓鐢�(ch菐n)鐨勯珮鏁圠ED椹�(q奴)鍕�(d貌ng)鍣ㄦ帶鍒跺櫒锛岄仼鐢ㄤ簬闄嶅妯″紡鐨勯珮鍔熺巼LED鐓ф槑鎳�(y墨ng)鐢�銆傝┎鍣ㄤ欢鑳藉閫氶亷(gu貌)澶栭儴MOSFET鎻愪緵绮剧⒑鐨勬亽瀹氶浕娴佽几鍑�锛屽緸鑰岀⒑淇滾ED浜害鐨勪竴鑷存��銆侺M3421鏀寔妯℃摤瑾�(di脿o)鍏夊拰PWM瑾�(di脿o)鍏�锛屽苟鍏锋湁閬�(gu貌)婧繚璀�(h霉)銆佺煭璺繚璀�(h霉)绛夊姛鑳斤紝浠ユ彁楂樼郴绲�(t菕ng)鐨勫彲闈犳�у拰绌�(w臎n)瀹氭��銆�
銆�銆�鍏朵富瑕佺壒榛�(di菐n)鏄泦鎴愪簡璞愬瘜鐨勪繚璀�(h霉)姗�(j墨)鍒跺拰澶氱ó瑾�(di脿o)鍏夊姛鑳斤紝浣垮叾闈炲父閬╁悎浜庢苯杌婄収鏄�銆佸伐妤�(y猫)鐓ф槑浠ュ強鍏朵粬闇�瑕侀珮绮惧害鎭掓祦鎺у埗鐨勬噳(y墨ng)鐢ㄥ牬(ch菐ng)鏅�銆�

鍙冩暩(sh霉)

宸ヤ綔闆诲锛�6V鑷�60V
銆�銆�鏈�澶ц矤(f霉)杓夐浕娴侊細5A
銆�銆�瑾�(di脿o)鍏夐牷鐜囪寖鍦嶏細楂橀仈(d谩)1kHz
銆�銆�瑾�(di脿o)鍏夊崰绌烘瘮鑼冨湇锛�0%鑷�100%
銆�銆�闈滄厠(t脿i)闆绘祦锛氬吀鍨嬪�肩偤3.5mA
銆�銆�闂�(gu膩n)鏂烽浕娴侊細鍏稿瀷鍊煎皬浜�1渭A
銆�銆�宸ヤ綔婧害鑼冨湇锛�-40鈩冭嚦+125鈩�

鐗规��

LM3421閲囩敤浜嗗皥鏈夌殑鏋舵(g貌u)瑷�(sh猫)瑷�(j矛)锛岃兘澶�?q奴)宕縁(xi脿n)楂樻晥鐜囩殑鎭掓祦椹�(q奴)鍕�(d貌ng)銆傚畠鍏峰倷浠ヤ笅闂�(gu膩n)閸电壒鎬э細
銆�銆�1. 瀵几鍏ラ浕澹撹寖鍦�锛屾敮鎸佸緸6V鍒�60V鐨勮几鍏ワ紝閬╂噳(y墨ng)涓嶅悓闆绘簮鐠�(hu谩n)澧�銆�
銆�銆�2. 鍏�(n猫i)缃�愬懆鏈熼檺娴佸姛鑳斤紝闃叉閬�(gu貌)杓夋垨鐭矾灏�(du矛)绯荤当(t菕ng)閫犳垚鎼嶅銆�
銆�銆�3. 鏀寔妯℃摤瑾�(di脿o)鍏夊拰PWM瑾�(di脿o)鍏�锛屽彲闈堟椿瑾�(di脿o)绡�(ji茅)LED浜害銆�
銆�銆�4. 楂橀枊(k膩i)闂�(gu膩n)闋荤巼鎿嶄綔锛堝彲閬�(d谩)1MHz锛�锛屾湁鍔╀簬娓涘皬澶栭儴鍏冧欢灏哄銆�
銆�銆�5. 鍏锋湁閬�(gu貌)婧繚璀�(h霉)鍜屾瑺澹撻帠瀹氬姛鑳�锛屽寮�(qi谩ng)浜嗘暣楂旂郴绲�(t菕ng)鐨勫畨鍏ㄦ��銆�
銆�銆�6. 閲囩敤8寮曡叧SOIC灏佽锛屾柟渚縋CB甯冨眬鑸囨暎鐔辩鐞�銆�

鎳�(y墨ng)鐢�

LM3421寤ｆ硾鎳�(y墨ng)鐢ㄤ簬鍚勭ó楂樺姛鐜嘗ED鐓ф槑闋�(l菒ng)鍩燂紝鍖呮嫭浣嗕笉闄愪簬锛�
銆�銆�1. 姹借粖鍓嶅ぇ鐕�銆佸熬鐕堝強鍏�(n猫i)閮ㄦ皼鍦嶇噲绛夎粖杓夌収鏄�銆�
銆�銆�2. 宸ユキ(y猫)瑷�(sh猫)鍌欎腑鐨勬寚绀虹噲鍜岃儗鍏夌収鏄�銆�
銆�銆�3. 鎴跺LED寤ｅ憡鐗屽拰澶у瀷椤ず灞�銆�
銆�銆�4. LED璺噲鍙婂叾浠栭珮浜害鐓ф槑瑙ｆ焙鏂规銆�
銆�銆�鍏堕珮鏁堢殑鎭掓祦椹�(q奴)鍕�(d貌ng)鑳藉姏鍜屽绋(di脿o)鍏夐伕闋�(xi脿ng)锛屼娇鍏舵垚鐐虹溇澶氶珮鍔熺巼LED鎳�(y墨ng)鐢ㄧ殑鐞嗘兂閬告搰銆�

鏇夸唬鍨嬭櫉(h脿o)

LM3422, LM3423

lm3421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㈠児(ji脿)

lm3421璩囨枡 鏇村>

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