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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 > LM3549

LM3549 鐧�(f膩)甯冩檪(sh铆)闁� 鏅�(sh铆)闁擄細2025/5/26 12:00:10 鏌ョ湅 闁辫畝锛�17

LM3549鏄竴娆剧敱寰峰窞鍎�鍣紙TI锛夋帹鍑虹殑楂樻晥鐜嘗ED椹�(q奴)鍕�(d貌ng)鍣�锛屽皥(zhu膩n)鐐洪﹨(q奴)鍕�(d貌ng)鍠覆鎴栧涓茬櫧鍏塋ED鑰岃ō(sh猫)瑷�(j矛)銆傝┎鍣ㄤ欢闆嗘垚浜嗕竴鍊�(g猫)楂樻晥鐨勯檷澹撹綁(zhu菐n)鎻涘櫒鍜屾亽娴佹帶鍒堕浕璺�锛岄仼鐢ㄤ簬渚挎敎寮忚ō(sh猫)鍌欑殑鑳屽厜鐓ф槑鎳�(y墨ng)鐢�銆傚畠鍏锋湁杓冨皬鐨勫皝瑁濆昂瀵稿拰杓冨皯鐨勫閮ㄥ厓浠堕渶姹�锛屽緸鑰岀啊(ji菐n)鍖栦簡绯荤当(t菕ng)瑷�(sh猫)瑷�(j矛)骞堕檷浣庝簡鏁撮珨鎴愭湰銆�
銆�銆�LM3549鏀寔楂橀仈(d谩)1A鐨勮几鍑洪浕娴�锛屽苟鑳藉閫氶亷(gu貌)PWM淇¤櫉(h脿o)瀵�(sh铆)鐝�(xi脿n)绮剧⒑鐨勪寒搴﹁(di脿o)绡�(ji茅)銆傚叾宸ヤ綔闆诲鑼冨湇鐐�2.7V鑷�5.5V锛岄潪甯搁仼鍚堢敱鍠瘈(ji茅)閶伴洟瀛愰浕姹犳垨USB闆绘簮渚涢浕鐨勬噳(y墨ng)鐢ㄥ牬(ch菐ng)鏅��

鍙冩暩(sh霉)

杓稿叆闆诲鑼冨湇锛�2.7V - 5.5V
銆�銆�鏈�澶ц几鍑洪浕娴侊細1A
銆�銆�闁�(k膩i)闂�(gu膩n)闋荤巼锛�1.2MHz
銆�銆�宸ヤ綔鏁堢巼锛氶珮閬�(d谩)90%
銆�銆�PWM瑾�(di脿o)鍏夐牷鐜囷細楂橀仈(d谩)20kHz
銆�銆�灏佽褰㈠紡锛歁SOP-8

鐗规��

LM3549鐨勪富瑕佺壒鎬у寘鎷細
銆�銆�1. 楂樻晥鐨勫悓姝ユ暣娴侀檷澹撹綁(zhu菐n)鎻涘櫒锛屾笡灏戜簡鍔熺巼鎼嶈�椼��
銆�銆�2. 鍏�(n猫i)缃(b菙)鍎熺恫(w菐ng)绲�(lu貌)锛岀劇(w煤)闇�澶栭儴瑁�(b菙)鍎熼浕瀹�锛岀啊(ji菐n)鍖栦簡瑷�(sh猫)瑷�(j矛)閬�(gu貌)绋嬨��
銆�銆�3. 鏀寔PWM瑾�(di脿o)鍏夊姛鑳�锛屽厑瑷辩敤鎴�(h霉)瀵�(sh铆)鐝�(xi脿n)绮剧⒑鐨勪寒搴︽帶鍒�銆�
銆�銆�4. 鐭矾淇濊(h霉)鍜岀啽闂�(gu膩n)鏂峰姛鑳�锛屾彁楂樹簡绯荤当(t菕ng)鐨勫彲闈犳�у拰瀹夊叏鎬�銆�
銆�銆�5. 瓒呭皬鐨勫皝瑁濆昂瀵革紙MSOP-8锛夛紝閬╁悎绌洪枔鍙楅檺鐨勬噳(y墨ng)鐢ㄧ挵(hu谩n)澧�銆�
銆�銆�6. 鍙(di脿o)绡�(ji茅)鐨勯枊(k膩i)闂�(gu膩n)闋荤巼锛屼究浜庡劒(y艒u)鍖朎MI鎬ц兘銆�

鎳�(y墨ng)鐢�

LM3549寤ｆ硾鎳�(y墨ng)鐢ㄤ簬浠ヤ笅闋�(l菒ng)鍩燂細
銆�銆�1. 鏅鸿兘鎵嬫(j墨)鍜屽钩鏉块浕鑵︾殑椤ず灞忚儗鍏�銆�
銆�銆�2. 鏁�(sh霉)纰肩浉姗�(j墨)鍜屽叾浠栦究鏀滃紡闆诲瓙瑷�(sh猫)鍌欑殑闁冨厜鐕堛��
銆�銆�3. 灏忓瀷LED鐓ф槑绯荤当(t菕ng)銆�
銆�銆�4. USB渚涢浕鐨凩ED鐕堝叿銆�
銆�銆�5. 鍏朵粬闇�瑕侀珮鏁堛�佺穵婀婂瀷LED椹�(q奴)鍕�(d貌ng)瑙ｆ焙鏂规鐨勬噳(y墨ng)鐢ㄥ牬(ch菐ng)鏅�銆�

鏇夸唬鍨嬭櫉(h脿o)

LM3548, LM3547

lm3549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)

lm3549璩囨枡 鏇村>

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