UC3842AN在7脚供给多少v直流电压最合适？谢谢！
\u4f60\u597d\u8bf7\u95ee\uff0cUC3842\u76847\u811a\u4e32\u7684\u7535\u963b\u591a\u5c11\u6b27\uff1f7\u811a\u5bf9\u5730\u7535\u538b\u51e0\u4f0f\uff1f\u5176\u5b83\u811a\u5206\u522b\u51e0\u4f0f\uff1f\u8c22\u8c22\u5982\u679c\u76f4\u63a5\u4ece\u76f4\u6d41\u6bcd\u7ebf\u4e0a\u53d6\u7535\uff0c\u53ef\u4ee5\u4e32\u805456K/1W\u7535\u963b\u3002
\u5bf9\u5730\u7535\u538b\u5927\u7ea6\u572834V\u3002\u5176\u4ed6\u5f15\u811a\u770b\u5177\u4f53\u7535\u8def\u3002
\u3000\u3000\u5927\u4e8e17V\u8d77\u632f\uff0c\u5185\u90e8\u7a33\u538b\u7ba1\u4f1a\u628a\u7535\u538b\u9650\u5236\u572834V\uff0c\u4e0d\u53ef\u80fd\u518d\u9ad8\u4e86\uff0c\u8981\u4e0d\u5c31\u662f\u82af\u7247\u70e7\u4e86\uff1b
\u3000\u3000UC3842 \u91c7\u7528\u56fa\u5b9a\u5de5\u4f5c\u9891\u7387\u8109\u51b2\u5bbd\u5ea6\u53ef\u63a7\u8c03\u5236\u65b9\u5f0f\uff0c\u5171\u67098 \u4e2a\u5f15\u811a\uff0c\u5404\u811a\u529f\u80fd\u5982\u4e0b\uff1a
\u3000\u3000\u2460\u811a\u662f\u8bef\u5dee\u653e\u5927\u5668\u7684\u8f93\u51fa\u7aef\uff0c\u5916\u63a5\u963b\u5bb9\u5143\u4ef6\u7528\u4e8e\u6539\u5584\u8bef\u5dee\u653e\u5927\u5668\u7684\u589e\u76ca\u548c\u9891\u7387\u7279\u6027\uff1b
\u3000\u3000\u2461\u811a\u662f\u53cd\u9988\u7535\u538b\u8f93\u5165\u7aef\uff0c\u6b64\u811a\u7535\u538b\u4e0e\u8bef\u5dee\u653e\u5927\u5668\u540c\u76f8\u7aef\u76842.5V \u57fa\u51c6\u7535\u538b\u8fdb\u884c\u6bd4\u8f83\uff0c\u4ea7\u751f\u8bef\u5dee\u7535\u538b\uff0c\u4ece\u800c\u63a7\u5236\u8109\u51b2\u5bbd\u5ea6\uff1b
\u3000\u3000\u2462\u811a\u4e3a\u7535\u6d41\u68c0\u6d4b\u8f93\u5165\u7aef\uff0c \u5f53\u68c0\u6d4b\u7535\u538b\u8d85\u8fc71V\u65f6\u7f29\u5c0f\u8109\u51b2\u5bbd\u5ea6\u4f7f\u7535\u6e90\u5904\u4e8e\u95f4\u6b47\u5de5\u4f5c\u72b6\u6001\uff1b
\u3000\u3000\u2463\u811a\u4e3a\u5b9a\u65f6\u7aef\uff0c\u5185\u90e8\u632f\u8361\u5668\u7684\u5de5\u4f5c\u9891\u7387\u7531\u5916\u63a5\u7684\u963b\u5bb9\u65f6\u95f4\u5e38\u6570\u51b3\u5b9a\uff0cf=1.72/(RT\u00d7CT)\uff1b
\u3000\u3000\u2464\u811a\u4e3a\u516c\u5171\u5730\u7aef\uff1b
\u3000\u3000\u2465\u811a\u4e3a\u63a8\u633d\u8f93\u51fa\u7aef\uff0c\u5185\u90e8\u4e3a\u56fe\u817e\u67f1\u5f0f\uff0c\u4e0a\u5347\u3001\u4e0b\u964d\u65f6\u95f4\u4ec5\u4e3a50ns \u9a71\u52a8\u80fd\u529b\u4e3a\u00b11A \uff1b
\u3000\u3000\u2466\u811a\u662f\u76f4\u6d41\u7535\u6e90\u4f9b\u7535\u7aef\uff0c\u5177\u6709\u6b20\u3001\u8fc7\u538b\u9501\u5b9a\u529f\u80fd\uff0c\u82af\u7247\u529f\u8017\u4e3a15mW\uff1b
\u3000\u3000\u2467\u811a\u4e3a5V \u57fa\u51c6\u7535\u538b\u8f93\u51fa\u7aef\uff0c\u670950mA \u7684\u8d1f\u8f7d\u80fd\u529b\u3002
大于17V起振,内部稳压管会把电压限制在34V。
绛旓細璺冲姩鐨勮繖涓數鍘嬩笉濂界‘瀹氾紝鍙鏈夌數鍘嬭緭鍑猴紝灏辫瘉鏄3842宸ヤ綔浜嗐傚畠鑳介┍鍔∕OS绠″氨琛屼簡鍛椼
绛旓細鐢靛姩杞﹀厖鐢靛櫒UC3842涓嶅彲浠ョ敤UC3844浠ｆ浛銆俇C3842涓嶶C3844閮芥槸楂樻ц兘鍥哄畾棰戠巼鐢垫祦妯″紡鎺у埗鍣紝鍣ㄤ欢灏佽涓庤剼鎺掑垪涔熷畬鍏ㄤ竴鏍枫傚彧鏄疷C3842鑺墖鍙互寰皟鎸崱鍣ㄦ斁鐢电數娴侊紝鍙簿纭帶鍒跺崰绌烘瘮锛岃孶C3844鍗存病鏈夎繖绉嶅姛鑳斤紝鎵浠ヤ笉鑳戒娇鐢║C3844浠ｆ崲UC3842銆俇C3842鍙互浣跨敤UC2842銆乁C2843銆乁C3843浠ｆ崲锛屽畠浠殑鍙傛暟瀹屽叏涓鏍枫
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绛旓細鐩存帴浠ｆ崲娌￠棶棰
绛旓細渚濇垜鐪嬫潵鎴戞劅瑙夎繕鏄嚜鐢ㄧ殑鎵嬫満qq娴忚鍣ㄦ瘮杈冮傜敤锛屽畠鐨勫唴瀛樺皬锛屽鎵嬫満绯荤粺涔熸病鏈夊澶ц姹傦紝鍗犵敤鍐呭瓨灏忥紝閫傚悎浠讳綍绯荤粺浣跨敤锛屽苟涓斿畠寰堝鏍煎紡鍜屾ā寮忛兘鏀寔锛屼粠娌℃湁閬囧埌杩囦粈涔堥棶棰橈紝涓婚〉璁捐鏇村姞娓呮柊锛屾搷浣滆捣鏉ユ洿鍔犵畝鍗曪紝鏂逛究锛屾敮鎸佺殑鎻掍欢澶氾紝瀵规垜浠棩甯告兂鎼滅殑瀹冨熀鏈兘鑳芥弧瓒筹紝杩愪綔绋冲畾锛屽揩閫燂紝瀹夊叏鎸囨暟楂橈紝鍙互...
绛旓細7鑴Vcc鏄數婧愩傚綋渚涚數鐢靛帇浣庝簬 锛16V鏃讹紝UC3842涓嶅伐浣滐紝姝ゆ椂鑰楃數鍦1mA浠ヤ笅銆傝緭鍏ョ數鍘嬪彲浠ラ氳繃涓涓ぇ闃诲肩數闃讳粠楂樺帇闄嶅帇鑾峰緱銆傝姱鐗囧伐浣滃悗锛岃緭鍏ョ數鍘嬪彲鍦+10锝+30V涔嬮棿娉㈠姩锛屼綆浜+10V鍋滄宸ヤ綔銆傚伐浣滄椂鑰楃數绾︿负15mA锛屾鐢垫祦鍙氳繃鍙嶉鐢甸樆鎻愪緵銆UC3842AN鍏锋湁16V/10V-UVLO 鍜 100% 鍗犵┖姣斻佹俯搴﹁寖鍥翠负 0掳C...
绛旓細7鑴Vcc鏄數婧愩傚綋渚涚數鐢靛帇浣庝簬 锛16V鏃讹紝UC3842涓嶅伐浣滐紝姝ゆ椂鑰楃數鍦1mA浠ヤ笅銆傝緭鍏ョ數鍘嬪彲浠ラ氳繃涓涓ぇ闃诲肩數闃讳粠楂樺帇闄嶅帇鑾峰緱銆傝姱鐗囧伐浣滃悗锛岃緭鍏ョ數鍘嬪彲鍦+10锝+30V涔嬮棿娉㈠姩锛屼綆浜+10V鍋滄宸ヤ綔銆傚伐浣滄椂鑰楃數绾︿负15mA锛屾鐢垫祦鍙氳繃鍙嶉鐢甸樆鎻愪緵銆UC3842AN鍏锋湁16V/10V-UVLO 鍜 100% 鍗犵┖姣斻佹俯搴﹁寖鍥翠负 0掳C...
绛旓細7鑴Vcc鏄數婧愩傚綋渚涚數鐢靛帇浣庝簬 锛16V鏃讹紝UC3842涓嶅伐浣滐紝姝ゆ椂鑰楃數鍦1mA浠ヤ笅銆傝緭鍏ョ數鍘嬪彲浠ラ氳繃涓涓ぇ闃诲肩數闃讳粠楂樺帇闄嶅帇鑾峰緱銆傝姱鐗囧伐浣滃悗锛岃緭鍏ョ數鍘嬪彲鍦+10锝+30V涔嬮棿娉㈠姩锛屼綆浜+10V鍋滄宸ヤ綔銆傚伐浣滄椂鑰楃數绾︿负15mA锛屾鐢垫祦鍙氳繃鍙嶉鐢甸樆鎻愪緵銆UC3842AN鍏锋湁16V/10V-UVLO 鍜 100% 鍗犵┖姣斻佹俯搴﹁寖鍥翠负 0掳C...
绛旓細7鑴Vcc鏄數婧愩傚綋渚涚數鐢靛帇浣庝簬 锛16V鏃讹紝UC3842涓嶅伐浣滐紝姝ゆ椂鑰楃數鍦1mA浠ヤ笅銆傝緭鍏ョ數鍘嬪彲浠ラ氳繃涓涓ぇ闃诲肩數闃讳粠楂樺帇闄嶅帇鑾峰緱銆傝姱鐗囧伐浣滃悗锛岃緭鍏ョ數鍘嬪彲鍦+10锝+30V涔嬮棿娉㈠姩锛屼綆浜+10V鍋滄宸ヤ綔銆傚伐浣滄椂鑰楃數绾︿负15mA锛屾鐢垫祦鍙氳繃鍙嶉鐢甸樆鎻愪緵銆UC3842AN鍏锋湁16V/10V-UVLO 鍜 100% 鍗犵┖姣斻佹俯搴﹁寖鍥翠负 0掳C...
绛旓細7鑴Vcc鏄數婧愩傚綋渚涚數鐢靛帇浣庝簬 锛16V鏃讹紝UC3842涓嶅伐浣滐紝姝ゆ椂鑰楃數鍦1mA浠ヤ笅銆傝緭鍏ョ數鍘嬪彲浠ラ氳繃涓涓ぇ闃诲肩數闃讳粠楂樺帇闄嶅帇鑾峰緱銆傝姱鐗囧伐浣滃悗锛岃緭鍏ョ數鍘嬪彲鍦+10锝+30V涔嬮棿娉㈠姩锛屼綆浜+10V鍋滄宸ヤ綔銆傚伐浣滄椂鑰楃數绾︿负15mA锛屾鐢垫祦鍙氳繃鍙嶉鐢甸樆鎻愪緵銆UC3842AN鍏锋湁16V/10V-UVLO 鍜 100% 鍗犵┖姣斻佹俯搴﹁寖鍥翠负 0掳C...
