UC3525A 鏅�(sh铆)闁擄細2025/5/6 12:21:32 闁辫畝锛�24

UC3525A鏄竴娆剧敱Unitrode鍏徃瑷�(sh猫)瑷�(j矛)鐨勯珮鎬ц兘PWM锛堣剤瀵(di脿o)鍒讹級鎺у埗鍣ㄨ姱鐗�锛屽唬娉涙噳(y墨ng)鐢ㄤ簬闁嬮棞(gu膩n)闆绘簮銆丏C-DC杞�(zhu菐n)鎻涘櫒浠ュ強鍏朵粬闇€瑕佺簿纰烘帶鍒惰几鍑洪浕澹撴垨闆绘祦鐨勯浕璺腑銆傝┎鑺墖鍏锋湁楂樼簿搴﹁宸斁澶у櫒銆佸彲瑾�(di脿o)绡€(ji茅)鐨勬鍗€(q奴)鏅�(sh铆)闁撴帶鍒朵互鍙婂叏闈㈢殑淇濊(h霉)鍔熻兘锛岄仼鐢ㄤ簬澶氱ó鍔熺巼璁婃彌鍫存櫙銆�
銆€銆€UC3525A閫氶亷鎻愪緵绌�(w臎n)瀹氱殑PWM淇¤櫉(h脿o)渚嗘帶鍒跺姛鐜囧櫒浠剁殑闁嬮棞(gu膩n)鍕�(d貌ng)浣�锛屽緸鑰屽(sh铆)鐝�(xi脿n)灏嶈几鍑洪浕澹撴垨闆绘祦鐨勭簿婧�(zh菙n)瑾�(di脿o)鎺�銆傚叾鍏稿瀷鎳�(y墨ng)鐢ㄥ寘鎷洟绶氬紡闁嬮棞(gu膩n)闆绘簮銆侀浕姹犲厖闆诲櫒銆丩ED椹�(q奴)鍕�(d貌ng)闆绘簮绛�銆�

鍙冩暩(sh霉)

鍨嬭櫉(h脿o)锛歎C3525A
銆€銆€灏佽褰㈠紡锛欴IP16/SOIC16
銆€銆€宸ヤ綔闆诲鑼冨湇锛�7V - 36V
銆€銆€鍩烘簴(zh菙n)闆诲锛�2.5V 卤 1%
銆€銆€鎸暕鍣ㄩ牷鐜囪寖鍦嶏細1kHz - 400kHz
銆€銆€鏈€澶у崰绌烘瘮锛�99%
銆€銆€鍟熷嫊(d貌ng)闆绘祦锛氬皯浜�20渭A
銆€銆€闂�(gu膩n)鏂锋ā寮忛浕娴侊細灏戜簬100渭A
銆€銆€杓稿嚭椹�(q奴)鍕�(d貌ng)鑳藉姏锛氬嘲鍊奸浕娴伮�1A
銆€銆€宸ヤ綔婧害鑼冨湇锛�-40鈩� 鑷� +125鈩�

鐗规€�

UC3525A鎿佹湁浠ヤ笅涓昏鐗规€э細
銆€銆€1. 鍏�(n猫i)缃珮绮惧害2.5V鍩烘簴(zh菙n)闆诲婧�锛岃兘澶�?y脿n)姒夌瓟浼濊妶璇藉硜鈹撯偓(w臎n)瀹氬弮鑰�銆�
銆€銆€2. 闆嗘垚瑾ゅ樊鏀惧ぇ鍣�锛岀⒑淇濋枆鐠�(hu谩n)绯荤当(t菕ng)鐨勭┅(w臎n)瀹氭€ц垏闊挎噳(y墨ng)閫熷害銆�
銆€銆€3. 鏀寔澶栭儴鍙法绋嬫尟钑╁櫒闋荤巼锛屼究浜庣敤鎴舵牴鎿�(j霉)鍏烽珨闇€姹傝(di脿o)鏁村伐浣滈牷鐜�銆�
銆€銆€4. 鎻愪緵姝诲崁(q奴)鏅�(sh铆)闁撴帶鍒跺姛鑳�锛屾笡灏戜笂涓嬫⿱鑷傜洿閫氱殑棰�(f膿ng)闅�(xi菐n)銆�
銆€銆€5. 鍏锋湁杌熷暉鍕�(d貌ng)鍔熻兘锛岄槻姝笂闆绘檪(sh铆)鐢�(ch菐n)鐢熼亷澶ф矕鎿婇浕娴�銆�
銆€銆€6. 鍏�(n猫i)閮ㄩ泦鎴愭瑺澹撻帠瀹氾紙UVLO锛変繚璀�(h霉)姗�(j墨)鍒讹紝鍦ㄨ几鍏ラ浕澹撻亷浣庢檪(sh铆)鑷嫊(d貌ng)闂�(gu膩n)闁夎姱鐗囪几鍑�銆�
銆€銆€7. 鏀寔閫愬懆鏈熼檺娴佷繚璀�(h霉)锛屾彁楂樼郴绲�(t菕ng)鍙潬鎬с€�
銆€銆€8. 杓稿嚭椹�(q奴)鍕�(d貌ng)鑳藉姏寮�(qi谩ng)锛岄仼鍚堢洿鎺ラ﹨(q奴)鍕�(d貌ng)MOSFET鎴栧叾浠栧姛鐜囧櫒浠�銆�

鎳�(y墨ng)鐢�

UC3525A琚唬娉涙噳(y墨ng)鐢ㄤ簬浠ヤ笅闋�(l菒ng)鍩燂細
銆€銆€1. 闁嬮棞(gu膩n)闆绘簮锛圫MPS锛夎ō(sh猫)瑷�(j矛)锛岀敤浜庡(sh铆)鐝�(xi脿n)楂樻晥鐨凙C-DC鎴朌C-DC杞�(zhu菐n)鎻�銆�
銆€銆€2. LED椹�(q奴)鍕�(d貌ng)闆绘簮锛屾彁渚涙亽瀹氶浕娴佷互淇濊瓑LED浜害涓€鑷存€�銆�
銆€銆€3. 闆绘睜鍏呴浕鍣�锛屾敮鎸佺簿纰虹殑闆诲鍜岄浕娴佽(di脿o)绡€(ji茅)銆�
銆€銆€4. 闆绘(j墨)椹�(q奴)鍕�(d貌ng)闆昏矾锛屼綔鐐篜WM淇¤櫉(h脿o)鐧�(f膩)鐢熷櫒浣跨敤銆�
銆€銆€5. 鍚勯宸ユキ(y猫)鎺у埗瑷�(sh猫)鍌欎腑鐨勫姛鐜囪綁(zhu菐n)鎻涙ā濉�銆�
銆€銆€鐢变簬鍏堕潏娲绘€у拰楂樺彲闈犳€�锛孶C3525A鎴愮偤瑷卞鍔熺巼闆诲瓙瑷�(sh猫)瑷�(j矛)涓殑棣栭伕PWM鎺у埗鍣�銆�