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鎮ㄥソ锛屾杩庝締鍒扮董搴�(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)

FP5139
闁辫畝锛�40819鏅�(sh铆)闁擄細2014-09-12 10:32:24

銆�銆�FP5139鏄竴鍊�(g猫)鍗囧鎷�?f霉)娴(ji茅)妲�(g貌u)闁嬮棞(gu膩n)绌�(w臎n)澹撳櫒鎺у埗IC,閬╃敤浜�闆绘睜渚涢浕鐨勬噳(y墨ng)鐢�銆傝┎FP5139鍖呮嫭鍦栭ò鏌卞柈杓稿嚭绱�(j铆)锛岀敤浜庨﹨(q奴)鍕�(d貌ng)鐨凬PN鏅堕珨绠℃垨N鍨婱OS,楂樼簿搴﹀弮鑰冮浕澹擄紙0.5V锛夊埌杓稿嚭闆诲鑸囧弽楗嬫斁澶у櫒锛岀敤浜庢帶鍒舵墍杩扮殑鏈�灏忓崰绌烘瘮锛屽彲绶ㄧ▼杌熷暉鍕�(d貌ng)涓�鍊�(g猫)鍏�(n猫i)閮ㄧ殑宸ヤ綔鍛ㄦ湡鎺у埗姣旇純鍏锋湁鐭矾淇濊(h霉)鍔熻兘鍜岀敤浜庨伕鎿囨搷浣滄ā寮忔垨寰呮(j墨)妯″紡鐨勯倧杓浕骞虫帶鍒�銆�

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銆�銆�瀵浕婧愰浕澹撳伐浣滆寖鍦嶏細1.8~15V
銆�銆�绮惧瘑鍩烘簴(zh菙n)闆诲锛�0.5V卤2%
銆�銆�浣庨浕娴佹秷鑰楋細5.5姣畨鐨勬搷浣滄ā寮�
銆�銆�瓒呬綆娑堣�楅浕娴侊細1渭A寰呮(j墨)妯″紡
銆�銆�楂橀牷鎸暕鍣ㄩ牷鐜囷細1MHz銆�
銆�銆�鍦栭ò鏌辫几鍑哄彲瑾�(di脿o)鐨勯枊/闂�(gu膩n)闆绘祦锛堝皪(du矛)浜嶯PN鏅堕珨绠℃垨N婧濋亾MOSFET锛�
銆�銆�閭忚集闆诲钩鎺у埗寰呮(j墨)妯″紡鍔熻兘
銆�銆�鍙法绋嬭粺鍟熷嫊(d貌ng)鍔熻兘锛圫S锛�
銆�銆�鐭矾淇濊(h霉)鍔熻兘锛圫CP锛�
銆�銆�灏佽锛歋OP-8L,TSSOP-8L鍜孧SOP-8L

鎳�(y墨ng)鐢�

銆�銆�鏁�(sh霉)纰肩浉姗�(j墨)銆丳DA銆佷究鏀滃紡瑷�(sh猫)鍌�

鍔熻兘妗嗗湒

寮曡叧瑾槑

妯�(bi膩o)璀�(sh铆)淇℃伅

鍏�(n猫i)閮ㄦ柟濉婂湒

銆�銆�1. 鏂瑰鍔熻兘锛�
銆�銆�FP5139 鐢变笉鍚岀壒鎬т箣闆绘櫠楂斿厓浠舵墍妲�(g貌u)鎴�锛岀啊(ji菐n)鍠垎鐐轰笅闈㈡暩(sh霉)鍊�(g猫)閮ㄥ垎锛�
銆�銆�i. 杓稿嚭椹�(q奴)鍕�(d貌ng)绱�(j铆)
銆�銆�ii. 鍙冭�冮浕澹撴簮鐢�(ch菐n)鐢�
銆�銆�iii. 杌熷暉鍕�(d貌ng)鍙婄煭璺繚璀�(h霉)绶氳矾
銆�銆�iv. 瑾ゅ樊鏀惧ぇ鍣�
銆�銆�v. 鎸暕鐢�(ch菐n)鐢熼浕璺強 PWM 姣旇純鍣�

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銆�銆�2. 瑷�(sh猫)瑷�(j矛)闄愬埗锛�
銆�銆�瑷�(sh猫)瑷�(j矛)闄愬埗鍦ㄦ柤鏍规摎(j霉) IC 瑕�(gu墨)鏍兼浉鍙婄壒鎬х郸浜堜娇鐢ㄤ笂鐨勮(gu墨)鏍奸檺鍒讹紝鍏剁洰鐨勫湪鍛婅ù瑷�(sh猫)瑷�(j矛)鑰呭浣曡兘瑷�(sh猫)瑷�(j矛)鍦� IC 浣跨敤涓婂畨鍏ㄧ殑鑼冨湇鍏�(n猫i)锛屼竴鑸ō(sh猫)瑷�(j矛)鑰呭皪(du矛)鏂艰(gu墨)鏍间笂鐨勭洸榛�(di菐n)鍙湪姝ゅ緱鍒板垵姝ユ緞娓�銆�
銆�銆�i. 宸ヤ綔闆诲锛欼C 鏈韩鏈夐檺鍒跺強宸ヤ綔闆诲锛屼緷瑕�(gu墨)鏍兼浉鎻忚堪 UVLO 鐨勮嚚鐣岄浕澹撶偤 1.3V 闄勮繎锛屾鏅�(sh铆)鍏�(n猫i)閮ㄥ弮鑰冮浕婧愶紙1.25V锛夊皻鏈┅(w臎n)瀹�锛岃ō(sh猫)瑷�(j矛)涓� VCC宸ヤ綔闆诲鑷冲皯鐐� 1.8V 浠ヤ笂鐐哄畨鍏ㄥ�硷紱楂橀浕澹撳伐浣滀笅锛孖CC 闆绘祦鏈�(hu矛)涓婂崌浣縄C 鏈韩鍔熺巼鎼嶈�楀鍔狅紝灏囦笉鍒╂柤楂樼挵(hu谩n)澧冩韩搴︿娇鐢�銆�
銆�銆�ii. 宸ヤ綔闋荤巼锛欼C 鏈韩鏈夊伐浣滈牷鐜囦笂闄�锛屼害鍗� IC 鎸暕闆昏矾鏍规摎(j霉)瑷�(sh猫)瑷�(j矛)鑰呬娇鐢ㄧ殑闆婚樆闆诲鍊奸洊鍙互瀹屾垚鎸暕姊濅欢锛屼絾鐢辨柤杓稿嚭绱�(j铆)鍒囨彌鍙嶆噳(y墨ng)涓嶅強鏈�(hu矛)閫犳垚娉㈠舰澶辩湡锛屽瓨鍦ㄥ(sh铆)闅涜兘琚娇鐢ㄧ殑闋荤巼涓嶅疁瓒呴亷 1MHz,鑰岄牷鐜囩偤澶栨帴 RC 瑾�(di脿o)鏁达紝闋荤巼瑾ゅ樊鍊煎強婧害璁婂嫊(d貌ng)鍊艰垏 RC 鏈韩鐗规�т篃鏈夐棞(gu膩n)绯�銆�
銆�銆�iii. 鍥犲収(n猫i)閮ㄥ浐瀹� PWM 灏�(d菐o)閫氬懆鏈熺殑姣斾緥绱勭偤宸ヤ綔闋荤巼鐨� 85%,鎵�浠ユ牴鎿�(j霉)鐞嗚珫鍦ㄩ�ｇ簩(x霉)灏�(d菐o)閫氭ā寮忥紙CCM锛変笅鍙綁(zhu菐n)鎻涚殑杓稿嚭闆诲绱勭偤杓稿叆鐨� 6.6 鍊嶏紝瓒呴亷鍓囧彲鑳介�犳垚 SCP 鍕�(d貌ng)浣滀娇 IC 鐢�(ch菐n)鐢熸爴閹�锛岃ō(sh猫)瑷�(j矛)鏅�(sh铆)蹇呴爤娉ㄦ剰 PWM 鐨勪娇鐢ㄥ皫(d菐o)閫氬懆鏈燂紙Duty cycle锛夋瘮渚�銆�
銆�銆�iv. BR/CTL 鎺ヨ叧鍙噳(y墨ng)鐢ㄥ仛 IC 闁嬮棞(gu膩n)浣跨敤锛岃�屽緸姝よ叧娴佸嚭涔嬮浕娴�锛屽湪瑕�(gu墨)鏍煎畾缇╀笂鑸囨帶鍒惰几鍑虹椹�(q奴)鍕�(d貌ng)绱�(j铆)涔嬮浕娴侀﹨(q奴)鍕�(d貌ng)鑳藉姏鏈夋瘮渚嬮棞(gu膩n)绯�锛屾牴鎿�(j霉)瑕�(gu墨)鏍艰鏄庡湪瑷�(sh猫)瑷�(j矛)涓婃铏曞皪(du矛)鍦伴浕闃婚樆鍊间笉瀹滃皬鏂� 270惟锛堢壒鍒ユ槸楂樿几鍏ラ浕澹撲娇鐢ㄤ笅锛夈��
銆�銆�v. 鐭矾淇濊(h霉)鎺ヨ叧鍦ㄧ煭璺嫊(d貌ng)浣滃緦鏈�(hu矛)閲嶇疆鍒颁綆闆讳綅骞舵爴閹栦綇锛屽繀闋堥噸缃浕婧� VCC閬� UVLO 榛�(di菐n)鎵嶈兘鍐嶅暉鍕�(d貌ng)锛屼害鍙埄鐢� BR/CTL 浣滈枊闂�(gu膩n)閲嬫斁閹栦綇鐙�鎱�(t脿i)銆備互涓婏紝 鐐烘寫閬� FP5139 鍋氱偤 PWM 鎺у埗闆绘簮瑷�(sh猫)瑷�(j矛)鍓嶉渶瑕佸厛鍋氱殑瑭�(p铆ng)浼拌垏鑰冮噺銆�

缍韩(k霉)闆诲瓙閫氾紝闆诲瓙鐭ヨ瓨(sh铆)锛屼竴鏌ョ櫨閫�锛�

宸叉敹閷勮姊�162111鍊�(g猫)