电动车充电器中UC3842B各脚电压是多少？ 电动车充电器中UC3842B各脚电压是多少
\u7535\u52a8\u8f66\u5145\u7535\u5668\u4e2dUC3842B\u5404\u811a\u7535\u538b\u662f\u591a\u5c11\uff1f\u4e00\u822c\u4e3a10-30V\u4e4b\u95f4\u3002
7\u4e3a\u7535\u6e90\u811a\uff0c20v\u5c5e\u6b63\u5e38\u503c\u3002\u4e00\u822c\u60c5\u51b5\uff0c\u76f4\u63a5\u6362\u4e00\u4e2a3842\uff0c\u786e\u4fddmos\u6ca1\u6709\u51fb\u7a7f\uff0c\u65ad\u5f00\u6805\u6781\uff0c\u901a\u7535\uff0c\u4e07\u7528\u8868\u6d4b\u8bd53842\u76846\u811a\u6709\u6446\u52a8\u7684\u7535\u538b\u57fa\u672c\u5c31\u53ef\u4ee5\u4e86\u3002UC3842B\u5404\u811a\u5de5\u4f5c\u7535\u538b\u5982\u4e0b:
1\u811aCOMP-OUT\uff1a3.5V\uff1b2\u811a FB(-)IN\uff1a2.5V\uff1b3\u811a LSNS-IN\uff1a0.5mV\uff1b4\u811a RT/CT\uff1a2.4V\uff1b5\u811a GND\uff1a0V\uff1b6\u811a V-OUT\uff1a1.2V\uff1b7\u811a Vcc-IN\uff1a14V\uff1b8\u811a VREF-OUT\uff1a5V\u3002
\u6269\u5c55\u8d44\u6599\uff1a\u8bbe\u8ba1\u5f00\u5173\u7535\u6e90\u6216\u7ef4\u4fee\u5f00\u5173\u7535\u6e90\u7684\u80af\u5b9a\u77e5\u9053\uff0cUC3842\u662f\u7535\u6d41\u63a7\u5236\u578b\u8109\u5bbd\u8c03\u5236\u82af\u7247\uff0c\u5355\u7aef\u8f93\u51fa\uff0c\u53ef\u4ee5\u76f4\u63a5\u9a71\u52a8\u53cc\u6781\u578b\u7684\u529f\u7387\u7ba1\u6216\u573a\u6548\u5e94\u7ba1\u3002\u8be5\u82af\u7247\u53ea\u67098\u4e2a\u5f15\u811a\uff0c\u5916\u56f4\u8bbe\u8ba1\u4e0d\u590d\u6742\uff0c\u4e13\u95e8\u4e3a\u5f00\u5173\u7535\u6e90\u8bbe\u8ba1\u7684\u4e00\u6b3e\u82af\u7247\uff0c\u5728\u8ba1\u7b97\u673a\u3001\u663e\u793a\u5668\u3001\u7535\u74f6\u5145\u7535\u5668\u7b49\u5f00\u5173\u7535\u6e90\u4e2d\u5341\u5206\u5e38\u89c1\uff0c\u4e3b\u8981\u4f5c\u4e3a\u5f00\u5173\u7535\u6e90\u7684\u9a71\u52a8\u5668\u3002
UC3842B\u82af\u7247\u5404\u5f15\u811a\u7684\u5b9a\u4e49:
1\u811a\uff1a\u662f\u8865\u507f\u811a\uff0c\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
2\u811a\uff1a\u662f\u7535\u538b\u7248\u9988\u8f93\u5165\u7aef,\u6b64\u811a\u7535\u538b\u4e0e\u8bef\u5dee\u653e\u5927\u5668\u540c\u76f8\u7aef\u76842.5V\u57fa\u51c6\u7535\u538b\u8fdb\u884c\u6bd4\u8f83,\u4ea7\u751f\u8bef\u5dee\u7535\u538b,\u4ece\u800c\u63a7\u5236\u8109\u51b2\u5bbd\u5ea6\uff1b
3\u811a\uff1a\u7535\u6d41\u53d6\u6837\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
4\u811a\uff1a\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/(RTxCT)\uff1b
6\u811a\uff1a\u63a8\u633d\u8f93\u51fa\u7aef\uff0c\u5185\u90e8\u4e3a\u56fe\u817e\u67f1\u5f0f\uff0c\u5347\u3001\u4e0b\u964d\u65f6\u95f4\u4ec5\u4e3a50ns \u9a71\u52a8\u80fd\u529b\u4e3a+1A\uff1b
7\u811a\uff1aVCC,\u5373\u4f9b\u7535\u7535\u6e90\uff0c\u7535\u538b\u8303\u56f410V~ 30V\u4ee5\u5185\uff1b
8\u811a\uff1a5V\u57fa\u51c6\u7535\u538b\u8f93\u51fa\u7aef\uff0c\u5177\u670950mA\u7684\u5e26\u8f7d\u80fd\u529b\u3002
8\u811a\u662f5V\u57fa\u51c6\u7535\u538b\u8f93\u51fa\uff0c\u5e94\u4e3a5V\uff0c7\u811a\u662f\u7535\u6e90\u811a\uff0c\u542f\u52a8\u8981\u8fbe\u523017V\u4ee5\u4e0a\uff0c\u6b63\u5e38\u5de5\u4f5c\u572811V\u2014\u201436V\u90fd\u662f\u53ef\u4ee5\u7684\uff0c5\u811a\u63a5\u5730\u3002\u5176\u4ed6\u811a\u7684\u7535\u538b\u90fd\u662f\u6839\u636e\u5de5\u4f5c\u60c5\u51b5\u53d8\u5316\u7684\u6216\u662f\u8109\u51b2\uff0c\u91cf\u5b83\u4eec\u7684\u7535\u538b\u503c\u6ca1\u6709\u592a\u5927\u610f\u4e49\u3002
1脚：误差放大器补偿（误差输出）； 电压：2.8V 2脚：反馈输入（误差信号输入） ； 电压：2.6V 3脚：开关管电流检测（过流保护）； 电压：0.08V 4脚：外接RC定时元件； 电压：0.9V 5脚：地线； 电压：0V 6脚：开关管驱动脉冲输出； 电压：1.3V 7脚：电源； 电压：15----17V 8脚：5V基准电压； 电压：5V正常的话，8脚有+5V电压如无电压，芯片坏。
非常有用，学习了:handshake
到网上收索下，不难找到答案哦。
绛旓細鍥炵瓟锛UC3842 閲囩敤鍥哄畾宸ヤ綔棰戠巼鑴夊啿瀹藉害鍙帶璋冨埗鏂瑰紡,鍏辨湁8 涓紩鑴,鍚勮剼鍔熻兘濡備笅: 鈶 鑴氭槸璇樊鏀惧ぇ鍣ㄧ殑杈撳嚭绔,澶栨帴闃诲鍏冧欢鐢ㄤ簬鏀瑰杽璇樊鏀惧ぇ鍣ㄧ殑澧炵泭鍜岄鐜囩壒鎬; 鈶 鑴氭槸鍙嶉鐢靛帇杈撳叆绔,姝よ剼鐢靛帇涓庤宸斁澶у櫒鍚岀浉绔殑2.5V 鍩哄噯鐢靛帇杩涜姣旇緝,浜х敓璇樊鐢靛帇,浠庤屾帶鍒惰剦鍐插搴; 鈶 鑴氫负鐢垫祦妫娴嬭緭鍏ョ, 褰...
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绛旓細褰撳紑鍏崇鍙UC3842B閮芥槸鐐歌鏃,鏈濂藉湪鏇存崲鎹熷潖鐨勫厓鍣ㄤ欢涔嬪悗,鍐嶆灙鏌勫紑鍏崇G鏋(鏍呮瀬)鎵鎺ョ殑闄愭祦鐢甸樆R609鏄惁鎹熷潖,鑻ヨ繖涓數闃荤儳姣佹垨鑰呴樆鍊煎澶х殑璇,灏变細寮曡捣寮鍏崇鐨勬縺鍔变笉瓒,浠庤屽嚭鐜版洿鎹㈡柊鐨勭數婧愬紑鍏崇鍚,绠″瓙浼氬彂鐑垨鑰呯粡甯哥儳姣佺殑鏁呴殰銆傚湪鏈変簺鏈哄瀷涓,鐢垫簮寮鍏崇鐨凣鏋佸鍦颁箣闂磋繕鏈変竴涓繚鎶ょ殑绋冲帇浜屾瀬绠,鏇存崲鐢垫簮...
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绛旓細鐢靛姩杞﹀厖鐢靛櫒涓锛UC3842B鍚鑴氱數鍘嬮氬父鍦10-30V涔嬮棿锛屽叾涓7鑴歏cc-IN鏄數婧愯緭鍏ヨ剼锛屾甯稿伐浣滅數鍘嬩负20V銆傝妫娴嬭姱鐗囨槸鍚︽甯革紝鍙互鏂紑鏍呮瀬锛岀敤涓囩敤琛ㄦ祴閲6鑴歏-OUT锛屽鏋滆兘鐪嬪埌鎽嗗姩鐨勭數鍘嬶紝璇存槑鍩烘湰姝ｅ父銆俇C3842B鐨勫叿浣撳伐浣滅數鍘嬪垎甯冨涓嬶細1鑴欳OMP-OUT锛3.5V2鑴欶B(-)IN锛2.5V3鑴歀SNS-IN锛0.5mV4鑴歊T...
绛旓細涓鑸负10-30V涔嬮棿銆7涓虹數婧愯剼锛20v灞炴甯稿笺備竴鑸儏鍐碉紝鐩存帴鎹竴涓3842锛岀‘淇漨os娌℃湁鍑荤┛锛屾柇寮鏍呮瀬锛岄氱數锛屼竾鐢ㄨ〃娴嬭瘯3842鐨6鑴氭湁鎽嗗姩鐨勭數鍘嬪熀鏈氨鍙互浜嗐UC3842B鍚鑴氬伐浣滅數鍘嬪涓:1鑴欳OMP-OUT锛3.5V锛2鑴 FB(-)IN锛2.5V锛3鑴 LSNS-IN锛0.5mV锛4鑴 RT/CT锛2.4V锛5鑴 GND锛0V锛6鑴 ...
绛旓細褰撳紑鍏崇鍙UC3842B閮芥槸鐐歌鏃,鏈濂藉湪鏇存崲鎹熷潖鐨勫厓鍣ㄤ欢涔嬪悗,鍐嶆灙鏌勫紑鍏崇G鏋(鏍呮瀬)鎵鎺ョ殑闄愭祦鐢甸樆R609鏄惁鎹熷潖,鑻ヨ繖涓數闃荤儳姣佹垨鑰呴樆鍊煎澶х殑璇,灏变細寮曡捣寮鍏崇鐨勬縺鍔变笉瓒,浠庤屽嚭鐜版洿鎹㈡柊鐨勭數婧愬紑鍏崇鍚,绠″瓙浼氬彂鐑垨鑰呯粡甯哥儳姣佺殑鏁呴殰銆傚湪鏈変簺鏈哄瀷涓,鐢垫簮寮鍏崇鐨凣鏋佸鍦颁箣闂磋繕鏈変竴涓繚鎶ょ殑绋冲帇浜屾瀬绠,鏇存崲鐢垫簮...
