鍨嬭櫉锛歎C3845BD1
銆�銆�灏佽�濆舰寮忥細DIP-8/SOIC-8
銆�銆�宸ヤ綔闆诲�撹寖鍦嶏��4.5V 鑷� 28V
銆�銆�闁嬮棞(gu膩n)闋荤巼鑼冨湇锛�100kHz 鑷� 500kHz
銆�銆�鏈�澶у崰绌烘瘮锛�99%
銆�銆�鍟熷嫊闆绘祦锛氬皬浜�3mA
銆�銆�闈滄厠(t脿i)宸ヤ綔闆绘祦锛氱磩10mA
銆�銆�婧�搴﹁寖鍦嶏��-40鈩� 鑷� +125鈩�
銆�銆�杓稿嚭椹�(q奴)鍕曡兘鍔涳細宄板�奸浕娴佸彲閬�(d谩)400mA

UC3845BD1鍏锋湁浠ヤ笅鐗归粸锛�
銆�銆�1. 鍥哄畾闋荤巼闆绘祦妯″紡鎺у埗鏋舵��(g貌u)锛屾彁渚涘揩閫熺灛鎱�(t脿i)闊挎噳(y墨ng)鍜岃壇濂界殑绌�(w臎n)瀹氭�с��
銆�銆�2. 鍏�(n猫i)缃�鍙�瑾�(di脿o)鎸�钑╁��锛屼究浜庣敤鎴舵牴鎿�(j霉)瀵﹂殯闇�姹傝ō(sh猫)瀹氬悎閬╃殑闁嬮棞(gu膩n)闋荤巼銆�
銆�銆�3. 闆嗘垚浜嗙簿瀵嗙殑鍙冭�冮浕澹撴簮锛�2.5V锛�锛屼繚璀夌郴绲�(t菕ng)鐨勯珮绮惧害鎬ц兘銆�
銆�銆�4. 鎻愪緵閫愬懆鏈熼浕娴侀檺鍒跺姛鑳斤紝鏈夋晥闃叉�㈤亷杓夋儏娉佸皪闆昏矾閫犳垚鎼嶅��銆�
銆�銆�5. 鏀�鎸佹瑺澹撻帠瀹氾紙UVLO锛夊姛鑳�锛屽湪杓稿叆闆诲�撲綆浜庨柧鍊兼檪鑷�鍕曢��(gu膩n)闁夎几鍑�銆�
銆�銆�6. 鍏峰倷鐔遍棞(gu膩n)鏂蜂繚璀�(h霉)鍔熻兘锛岄伩鍏嶈姱鐗囧洜閬庣啽鑰屽彈鎼�銆�
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銆�銆�閫欎簺鐗规�т娇UC3845BD1鎴愮偤涓�娆炬�ц兘鍎�(y艒u)瓒婁笖鍙�闈犳�у挤鐨凱WM鎺у埗鍣�锛岄仼鍚堝悇绋�鍔熺巼璁婃彌鍫存��銆�

UC3845BD1涓昏�佺敤浜庝互涓嬪咕鍊嬮牁(l菒ng)鍩燂細
銆�銆�1. 闆㈢窔寮忛枊闂�(gu膩n)闆绘簮锛圫MPS锛�锛屼緥濡傞仼閰嶅櫒銆佸厖闆诲櫒绛�銆�
銆�銆�2. DC-DC杞�(zhu菐n)鎻涘櫒锛岀敤浜庡皣鐩存祦闆诲�撳緸涓�鍊嬮浕骞宠綁(zhu菐n)鎻涘埌鍙︿竴鍊嬮浕骞炽��
銆�銆�3. LED椹�(q奴)鍕曢浕婧�锛岀偤LED鐓ф槑瑷�(sh猫)鍌欐彁渚涚┅(w臎n)瀹氱殑闆绘祦鎴栭浕澹撹几鍑�銆�
銆�銆�4. 宸ユキ(y猫)鑷�鍕曞寲瑷�(sh猫)鍌欎腑鐨勮紨鍔╅浕婧愰儴鍒�銆�
銆�銆�5. 灏忓瀷瀹堕浕鍜屾秷璨婚�為浕瀛愮��(ch菐n)鍝佷腑鐨勯浕婧愮�＄悊妯″��銆�
銆�銆�6. 閫氫俊瑷�(sh猫)鍌欎腑鐨勫倷鐢ㄩ浕婧愬柈鍏�銆�
銆�銆�鐢变簬鍏堕珮闆嗘垚搴﹀拰鍙�闈犳��锛孶C3845BD1鍦ㄤ笂杩版噳(y墨ng)鐢ㄥ牬鏅�涓�琛ㄧ従(xi脿n)鍑鸿壊锛岃兘澶犳豢瓒冲�氭ǎ鍖栫殑闆绘簮瑷�(sh猫)瑷堥渶姹傘��

UC3845B, UC3845C, SG3845