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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 > LM2940-N

LM2940-N 鐧�(f膩)甯冩檪(sh铆)闁� 鏅�(sh铆)闁擄細2025/5/6 13:17:01 鏌ョ湅 闁辫畝锛�33

LM2940-N 鏄竴娆炬闆诲杓稿嚭鐨勪綆澹撳樊 (LDO) 绌�(w臎n)澹撳櫒锛屽爆浜庡痉宸炲剙鍣� (TI) 鐨� LM2940 绯诲垪銆傚畠鍏锋湁楂橀浕娴佽兘鍔涖�佷綆鍔熻�椾互鍙婂嚭鑹茬殑鐬厠(t脿i)闊挎噳(y墨ng)鎬ц兘锛岃兘澶犲湪杓稿叆闆诲鑼冨湇杓冨鐨勬儏娉佷笅鎻愪緵绌�(w臎n)瀹氱殑杓稿嚭闆诲銆傝┎鑺墖寤ｆ硾鎳�(y墨ng)鐢ㄤ簬姹借粖闆诲瓙銆佸伐妤�(y猫)瑷�(sh猫)鍌欏拰娑堣不(f猫i)椤為浕瀛愮敘(ch菐n)鍝佷腑锛屽挨鍏堕仼鍚堥渶瑕侀珮鍙潬鎬ч浕婧愮鐞嗙殑鍫�(ch菐ng)鏅��
銆�銆�LM2940-N 鎻愪緵澶氱ó鍥哄畾杓稿嚭闆诲鐗堟湰锛堝 5V 鍜� 12V锛�锛屽悓鏅�(sh铆)涔熸敮鎸佸彲瑾�(di脿o)杓稿嚭鐗堟湰銆傚叾灏佽褰㈠紡鍖呮嫭 TO-220 鍜� DPAK锛岃兘澶犳豢瓒充笉鍚屾噳(y墨ng)鐢ㄥ皪(du矛)鏁ｇ啽鎬ц兘鐨勮姹�銆�

鍙冩暩(sh霉)

杓稿叆闆诲鑼冨湇锛�7.5V 鑷� 30V
銆�銆�杓稿嚭闆诲鑼冨湇锛氬浐瀹氱増鏈偤 5V 鎴� 12V锛涘彲瑾�(di脿o)鐗堟湰鍙�氶亷澶栭儴闆婚樆鍒嗗鍣ㄨō(sh猫)缃�
銆�銆�鏈�澶ц几鍑洪浕娴侊細1A
銆�銆�澹撳樊闆诲锛氬吀鍨嬪�肩偤 1.3V
銆�銆�宸ヤ綔婧害鑼冨湇锛�-40掳C 鑷� 125掳C
銆�銆�灏佽椤炲瀷锛歍O-220, DPAK
銆�銆�闈滄厠(t脿i)闆绘祦锛氬吀鍨嬪�肩偤 8mA

鐗规��

LM2940-N 鍏锋湁浠ヤ笅涓昏鐗规�э細
銆�銆�1. 浣庡宸�ц兘锛屼娇鍏惰兘澶犲湪杓稿叆鑸囪几鍑洪浕澹撴帴杩戞檪(sh铆)浠嶄繚鎸佺┅(w臎n)瀹氳几鍑�銆�
銆�銆�2. 鍏�(n猫i)缃亷娴佷繚璀�(h霉)鍜岀啽闂�(gu膩n)鏂峰姛鑳�锛岀⒑淇濊姱鐗囧湪鐣板父鎯呮硜涓嬩笉鏈�(hu矛)鎼嶅銆�
銆�銆�3. 楂樼磱娉㈡姂鍒舵瘮 (PSRR)锛岃兘澶犳湁鏁堥檷浣庤几鍑洪浕澹撶殑鍣伈銆�
銆�銆�4. 鍟熷嫊(d貌ng)鏅�(sh铆)闁撶煭锛岄仼鐢ㄤ簬蹇�熷暉鍕�(d貌ng)鐨勬噳(y墨ng)鐢ㄥ牬(ch菐ng)鍚堛��
銆�銆�5. 杓稿嚭绔収(n猫i)缃(b菙)鍎熼浕瀹�锛岀啊(ji菐n)鍖栦簡闆昏矾瑷�(sh猫)瑷�(j矛)銆�
銆�銆�6. 瀵几鍏ラ浕澹撹寖鍦嶅拰楂樿几鍑洪浕娴佽兘鍔�锛岄仼鍚堝悇绋京(f霉)闆滈浕婧愮挵(hu谩n)澧冦��
銆�銆�7. 鑹ソ鐨勮矤(f霉)杓夊拰绶氳矾瑾�(di脿o)绡�(ji茅)鎬ц兘锛屼繚璀夌郴绲�(t菕ng)绌�(w臎n)瀹氭��銆�

鎳�(y墨ng)鐢�

LM2940-N 鍙敤浜庝互涓嬫噳(y墨ng)鐢ㄥ牬(ch菐ng)鏅細
銆�銆�1. 姹借粖闆诲瓙瑷�(sh猫)鍌欎腑鐨勫倷鐢ㄩ浕姹犱緵闆荤郴绲�(t菕ng)銆�
銆�銆�2. 宸ユキ(y猫)鎺у埗瑷�(sh猫)鍌欎腑鐨勫偝鎰熷櫒渚涢浕妯″銆�
銆�銆�3. 娑堣不(f猫i)椤為浕瀛愮敘(ch菐n)鍝佸渚挎敎寮忛煶闊挎垨鎵嬫寔瑷�(sh猫)鍌欑殑闆绘簮绠＄悊銆�
銆�銆�4. 閱�(y墨)鐧傝ō(sh猫)鍌欎腑鐨勪綆鍣伈闆绘簮闆昏矾銆�
銆�銆�5. 閫氫俊瑷�(sh猫)鍌欎腑鐨勮紨鍔╅浕婧愪緵鎳�(y墨ng)銆�
銆�銆�6. LED 椹�(q奴)鍕�(d貌ng)闆昏矾浠ュ強鍏朵粬闇�瑕佺┅(w臎n)瀹氱洿娴侀浕婧愮殑鍫�(ch菐ng)鍚堛��

鏇夸唬鍨嬭櫉(h脿o)

LM2940CT-5.0, LM2940T-12.0, LM2940CZ-5.0

lm2940-n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�
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  • 寤犲晢
  • 灏佽/鎵硅櫉(h脿o)
  • 瑭㈠児(ji脿)