鏅傞枔锛�2025/4/27 18:18:03
闁辫畝锛�36
LT3798EMSE 鏄竴娆剧敱 Analog Devices 鍏徃鐢熺敘(ch菐n)鐨� LED 椹呭嫊鍣ㄦ帶鍒跺櫒锛屽皥鐐洪珮浜害 LED 鎳夌敤鑰岃ō瑷�銆傝┎鑺墖鑳藉閫氶亷鍗囧銆侀檷澹撴垨鍗囬檷澹撴嫇鎾查﹨鍕曞ぇ鍔熺巼 LED 鐕堜覆锛岄仼鐢ㄤ簬姹借粖鐓ф槑銆佸缓绛戠収鏄庝互鍙婇’绀哄睆鑳屽厜绛夊牬鏅�銆�
銆�銆�瀹冨叿鏈夋亽瀹氶牷鐜囬浕娴佹ā寮忔灦妲�锛屽彲瀵︾従(xi脿n)绮剧⒑鐨� LED 闆绘祦瑾跨瘈(ji茅)锛屽苟鏀寔澶栭儴 MOSFET 闁嬮棞浠ユ彁楂樻晥鐜囥�傛澶�锛屽叾 PWM 瑾垮厜鍔熻兘鍙互鎻愪緵楂橀仈 3000:1 鐨勮鍏夋瘮锛岄仼鍚堝皪浜害鎺у埗瑕佹眰杓冮珮鐨勬噳鐢ㄣ��
杓稿叆闆诲鑼冨湇锛�4.5V 鑷� 60V
銆�銆�杓稿嚭闆绘祦绮惧害锛毬�3%
銆�銆�宸ヤ綔闋荤巼鑼冨湇锛�100kHz 鑷� 1MHz
銆�銆�PWM 瑾垮厜姣旓細3000:1
銆�銆�鏈�澶ф煹妤甸﹨鍕曢浕澹擄細8V
銆�銆�灏佽椤炲瀷锛歁SOP-16E
LT3798EMSE 鎻愪緵浜嗗绋棞閸电壒鎬у拰淇濊姗熷埗锛屼娇鍏跺湪寰╅洔鐠�(hu谩n)澧冧腑渚濈劧鍙潬閬嬭銆傚叾涓寘鎷簿婧栫殑 LED 闆绘祦瑾跨瘈(ji茅)鑳藉姏锛岄�欎娇寰楀嵆浣垮湪瀵几鍏ラ浕澹撹寖鍦嶅収(n猫i)涔熻兘淇濇寔浜害涓�鑷�銆�
銆�銆�姝ゅ锛屽畠閭勫叿鍌欑啽闂滄柗淇濊銆佺煭璺繚璀峰拰閬庡淇濊绛夊姛鑳�锛屽緸鑰屾彁楂樹簡绯荤当(t菕ng)鐨勬暣楂斿畨鍏ㄦ�с�傝姱鐗囨敮鎸佹ā鎿鍏夊拰PWM瑾垮厜锛屽厑瑷辩敤鎴舵牴鎿�(j霉)鍏烽珨闇�姹傞伕鎿囧悎閬╃殑瑾垮厜鏂瑰紡銆�
銆�銆�LED 闁嬭矾鏁呴殰妾㈡脯鍔熻兘閫蹭竴姝ュ寮蜂簡绯荤当(t菕ng)鐩�(ji膩n)鎺ц兘鍔�锛屼究浜庡鏅傝ê鏂锋經鍦ㄥ晱椤�銆傚皪浜庨渶瑕佹洿楂樻晥鐜囩殑鎳夌敤锛岃┎鑺墖鍙�氶亷澶栨帴浣� RDS(ON) MOSFET 渚嗗劒(y艒u)鍖栨�ц兘銆�
LT3798EMSE 涓昏鎳夌敤浜庨珮浜害 LED 鐓ф槑闋樺煙锛屼緥濡傛苯杌婂墠鐓х噲銆侀湩鐕堝拰鏃ラ枔琛岃粖鐕堢瓑杌婅級鐠�(hu谩n)澧冧腑鐨� LED 椹呭嫊銆�
銆�銆�鍚屾檪锛屽湪宸ユキ(y猫)绱� LED 鐓ф槑濡傚唬鍛婄墝銆佷俊铏熺噲鍙婃埗澶栫収鏄庝腑涔熸湁寤ｆ硾鎳夌敤銆傛澶栵紝鐢变簬鍏堕潏娲荤殑宸ヤ綔妯″紡锛堝寘鎷崌澹�銆侀檷澹撳拰鍗囬檷澹擄級锛岃┎鑺墖鍚屾ǎ閬╁悎鐢ㄤ簬绛嗚鏈浕鑵﹀拰骞虫澘椤ず鍣ㄧ殑鑳屽厜瑙ｆ焙鏂规锛岀⒑淇濆睆骞曚寒搴﹀潎鍕讳笖楂樻晥绡�(ji茅)鑳姐��
LT3798IMSE, LT3798EMS
