鏅傞枔锛�2025/5/6 16:03:14
闁辫畝锛�42
LM3509鏄竴娆鹃珮鎬ц兘鐨勫崌澹揕ED椹呭嫊鑺墖锛屽皥鐐洪﹨鍕曢珮浜害LED鑰岃ō瑷�銆傝┎鑺墖鍏ч儴闆嗘垚浜嗕竴鍊嬪姛鐜囬枊闂滃拰涓�鍊嬪崌澹撹綁鎻涘櫒锛岃兘澶犳彁渚涢珮閬�1A鐨勮几鍑洪浕娴�銆傚叾鐗归粸鏄珮鏁堢巼銆佷綆鍔熻�楀拰鑹ソ鐨勭┅(w臎n)瀹氭�э紝閬╃敤浜庡悇绋究鏀滃紡瑷倷鍜岀収鏄庢噳鐢�銆侺M3509鏀寔PWM瑾垮厜鍔熻兘锛屽彲浠ュ鐝�(xi脿n)灏峀ED浜害鐨勭簿纰烘帶鍒�銆�
銆�銆�瑭茶姱鐗囩殑宸ヤ綔闆诲鑼冨湇瀵紝杓稿叆闆诲鍙互寰�2.7V鍒�5.5V锛岄潪甯搁仼鍚堝柈绡�(ji茅)閶伴洟瀛愰浕姹犱緵闆荤殑鎳夌敤鍫存櫙銆傛澶�锛孡M3509閭勫叿鏈夐亷婧繚璀�銆佺煭璺繚璀风瓑澶氶噸瀹夊叏姗熷埗锛屼繚璀変簡绯荤当(t菕ng)鍦ㄧ暟甯告儏娉佷笅鐨勫彲闈犳�с��
杓稿叆闆诲鑼冨湇锛�2.7V~5.5V
銆�銆�鏈�澶ц几鍑洪浕娴侊細1A
銆�銆�宸ヤ綔闋荤巼锛�1.2MHz
銆�銆�鏁堢巼锛氶珮閬�90%
銆�銆�PWM瑾垮厜闋荤巼鑼冨湇锛�200Hz~50kHz
銆�銆�灏佽褰㈠紡锛歋OT-23
LM3509閲囩敤鎭掓祦椹呭嫊妯″紡锛岀⒑淇滾ED浜害鐨勪竴鑷存�э紝閬垮厤浜嗗洜闆诲娉㈠嫊寮曡捣鐨勪寒搴﹁畩鍖栧晱椤�銆�
銆�銆�鍏х疆鐨勫姛鐜囬枊闂滃拰瑁滃劅闆昏矾娓涘皯浜嗗閮ㄥ厓浠舵暩(sh霉)閲忥紝寰炶�岀啊鍖栦簡瑷▓骞堕檷浣庝簡鏁撮珨鏂规鐨勬垚鏈�銆�
銆�銆�1.2MHz鐨勯珮闋诲伐浣滀娇寰楀彲浠ヤ娇鐢ㄦ洿灏忓昂瀵哥殑闆绘劅鍜岄浕瀹�锛屾湁鍔╀簬娓涘皯PCB闈㈢⿳銆�
銆�銆�PWM瑾垮厜鍔熻兘鍏佽ū鐢ㄦ埗閫氶亷瑾跨瘈(ji茅)鍗犵┖姣斾締鏀硅畩LED鐨勪寒搴�锛岄仼鍚堥渶瑕佸嫊鎱�(t脿i)椤ず鏁堟灉鐨勬噳鐢ㄥ牬鏅�銆�
銆�銆�鑺墖鍏峰倷瀹屽杽鐨勪繚璀锋鍒�锛屽寘鎷亷婧棞鏂�銆佺煭璺繚璀蜂互鍙婇亷澹撲繚璀凤紝澧炲挤浜嗙郴绲�(t菕ng)鐨勫彲闈犳�у拰瀹夊叏鎬�銆�
LM3509寤ｆ硾鎳夌敤浜庢墜鎸佽ō鍌欒儗鍏夈�佹苯杌婂収閮ㄧ収鏄�銆佷究鏀滃紡鐕堝叿浠ュ強鍏朵粬闇�瑕侀珮鏁堥﹨鍕曢珮浜害LED鐨勫牬鍚�銆備緥濡�锛屽湪鏅鸿兘鎵嬫銆佸钩鏉块浕鑵︾瓑绉诲嫊瑷倷涓�锛屽彲鐢ㄤ簬灞忓箷鑳屽厜椹呭嫊锛涘湪鎴跺閬嬪嫊瑁濆倷濡傞牠鐕堟垨鎵嬮浕绛掍腑锛屽彲鎻愪緵绌�(w臎n)瀹氫笖楂樻晥鐨勫厜婧愭敮鎸�銆�
銆�銆�姝ゅ锛岀敱浜庡叾鏀寔PWM瑾垮厜鍔熻兘锛岄倓鍙互鐢ㄤ簬寤ｅ憡鐗�銆佽垶鑷虹噲鍏夌瓑闇�瑕佸嫊鎱�(t脿i)瑾跨瘈(ji茅)浜害鐨勫牬鏅��
AP6210B
銆�銆�LT3486
銆�銆�MAX16819
