鏅傞枔锛�2025/5/7 12:19:17
闁辫畝锛�31
RT9742EGJ5 鏄竴娆剧敱 Richtek锛堢珛閷＄鎶�锛夎ō瑷堢殑鍚屾鏁存祦闄嶅鍨� DC-DC 杞�(zhu菐n)鎻涘櫒銆傝┎鑺墖鍏锋湁楂樻晥鐜�銆佸皬灏哄鍜屾槗浜庝娇鐢ㄧ殑鐗归粸锛岄仼鐢ㄤ簬澶氱ó渚挎敎寮忚ō鍌欏拰娑堣不椤為浕瀛愮敘(ch菐n)鍝佷腑鐨勯浕婧愮鐞嗘噳鐢�銆�
銆�銆�RT9742EGJ5 鏀寔瀵几鍏ラ浕澹撹寖鍦�锛屽苟鍏�(n猫i)缃簡楂樻�ц兘鍔熺巼 MOSFET 浠ユ彁楂樿綁(zhu菐n)鎻涙晥鐜�銆傚叾閲囩敤鎭掑畾灏庨�氭檪闁� (COT) 鎺у埗妯″紡锛岃兘澶犲湪璨犺級鐬厠(t脿i)闊挎噳涓彁渚涘揩閫熻(di脿o)鏁�锛屽苟涓旀敮鎸佷綆杓稿嚭闆诲瑷疆锛屾豢瓒崇従(xi脿n)浠ｉ浕瀛愯ō鍌欏皪闆绘簮鏁堢巼鍜岀┅(w臎n)瀹氭�х殑瑕佹眰銆�
杓稿叆闆诲鑼冨湇锛�3V 鑷� 18V
銆�銆�杓稿嚭闆诲鑼冨湇锛�0.8V 鑷� 12V
銆�銆�闁嬮棞闋荤巼锛�500kHz
銆�銆�鏈�澶ц几鍑洪浕娴侊細2A
銆�銆�灏佽椤炲瀷锛歈FN-16L (3x3)
銆�銆�宸ヤ綔婧害鑼冨湇锛�-40掳C 鑷� +125掳C
銆�銆�闈滄厠(t脿i)闆绘祦锛�15uA
RT9742EGJ5 鍏锋湁浠ヤ笅椤憲鐗规�э細
銆�銆�1. 鍏�(n猫i)缃珮鏁堢殑涓婁笅姗嬪悓姝ユ暣娴� MOSFET锛屽彲瀵︾従(xi脿n)楂橀仈 95% 鐨勮綁(zhu菐n)鎻涙晥鐜囥��
銆�銆�2. 鎭掑畾灏庨�氭檪闁撴帶鍒舵灦妲嬩娇鍏跺湪鍚勭ó璨犺級姊濅欢涓嬮兘鑳戒繚鎸佺┅(w臎n)瀹氱殑杓稿嚭鎬ц兘銆�
銆�銆�3. 鏀寔鑴堟矕璺宠簫妯″紡 (PFM)锛屽緸鑰屽湪杓曡級鏅傛彁鍗囨晥鐜�銆�
銆�銆�4. 鎻愪緵鐭矾淇濊銆侀亷婧繚璀蜂互鍙婇亷娴佷繚璀峰姛鑳�锛岀⒑淇濈郴绲�(t菕ng)閬嬭鐨勫畨鍏ㄦ�с��
銆�銆�5. 杓稿嚭闆诲閫氶亷澶栭儴闆婚樆鍒嗗鍣ㄩ潏娲昏ō瀹�锛岄仼鍚堝绋噳鐢ㄩ渶姹�銆�
銆�銆�6. 闆嗘垚浜嗚粺鍟熷嫊鍔熻兘锛岄伩鍏嶅暉鍕曟檪鐨勬氮娑岄浕娴佸晱椤�銆�
銆�銆�7. 灏忓阀鐨� QFN-16L 灏佽浣垮緱瀹冮潪甯搁仼鍚堢┖闁撳彈闄愮殑瑷▓鐠�(hu谩n)澧�銆�
RT9742EGJ5 寤ｆ硾鎳夌敤浜庨渶瑕侀珮鏁堣兘鍜屽皬鍨嬪寲闆绘簮瑙ｆ焙鏂规鐨勫牬鏅紝鍖呮嫭浣嗕笉闄愪簬锛�
銆�銆�1. 渚挎敎寮忛浕瀛愯ō鍌�锛屼緥濡傛櫤鑳芥墜姗熴�佸钩鏉块浕鑵﹀強鍙┛鎴磋ō鍌�銆�
銆�銆�2. 宸ユキ(y猫)鑷嫊鍖栭牁鍩熺殑灏忓瀷鎺у埗鍣ㄥ拰鍌虫劅鍣ㄤ緵闆汇��
銆�銆�3. 娑堣不椤為浕瀛愮敘(ch菐n)鍝佷腑鐨勯浕姹犲厖闆荤鐞�銆�
銆�銆�4. 缍�(w菐ng)绲￠�氫俊瑷倷鐨勮紨鍔╅浕婧愭ā濉�銆�
銆�銆�5. 閱�(y墨)鐧傝ō鍌欎腑鐨勪綆澹撲緵闆诲柈鍏�銆�
銆�銆�鐢变簬鍏堕珮鏁堢巼鍜岀穵婀婅ō瑷�锛孯T9742EGJ5 鎴愮偤鐪惧宸ョ▼甯湪閬告搰 DC-DC 杞�(zhu菐n)鎻涘櫒鏅傜殑鐞嗘兂鏂规銆�
RT9741, RT9743
