UC3845 鏅�(sh铆)闁擄細2023/7/28 11:47:29 闁辫畝锛�1431

UC3845鏄珮鎬ц兘鍥哄畾闋荤巼闆绘祦妯″紡鎺у埗鍣ㄥ皥鐐洪洟绶氬拰鐩存祦鑷崇洿娴佽畩鎻涘櫒鎳�(y墨ng)鐢ㄨ€岃ō(sh猫)瑷�(j矛)锛岀偤瑷�(sh猫)瑷�(j矛)浜哄摗鎻愪緵鍙渶鏈€灏戝閮ㄥ厓浠跺氨鑳界嵅寰楁垚鏈晥鐩婇珮鐨勮В姹烘柟妗�銆�

鎻忚堪

UC3845鏄珮鎬ц兘鍥哄畾闋荤巼闆绘祦妯″紡鎺у埗鍣ㄥ皥鐐洪洟绶氬拰鐩存祦鑷崇洿娴佽畩鎻涘櫒鎳�(y墨ng)鐢ㄨ€岃ō(sh猫)瑷�(j矛)锛岀偤瑷�(sh猫)瑷�(j矛)浜哄摗鎻愪緵鍙渶鏈€灏戝閮ㄥ厓浠跺氨鑳界嵅寰楁垚鏈晥鐩婇珮鐨勮В姹烘柟妗�銆傞€欎簺闆嗘垚闆昏矾鍏锋湁鍙井瑾�(di脿o)鐨勬尟钑╁櫒銆佽兘閫�(j矛n)琛岀簿纰虹殑鍗犵┖姣旀帶鍒躲€佹韩搴﹁(b菙)鍎�?sh霉)鑶挅?銆侀珮澧炵泭瑾ゅ樊鏀惧ぇ鍣ㄣ€傞浕娴佸彇妯ｆ瘮杓冨櫒鍜屽ぇ闆绘祦鍦栭ò鏌卞紡杓稿嚭锛屾槸椹�(q奴)鍕�(d貌ng)鍔熺巼MOSFET鐨勭悊鎯冲櫒浠�銆�

鐢�(ch菐n)鍝佸湒鐗�

UC3845

瑕�(gu墨)鏍煎弮鏁�(sh霉)

鐢�(ch菐n)鍝佸瀷铏�(h脿o)	UC3845
鍒堕€犲晢	寰峰窞鍎€鍣�(TI)
杓稿叆闆诲	15V
杓稿嚭闆诲	5V
杓稿嚭闆绘祦	200mA
闋荤巼	500kHz
灏佽褰㈠紡	DIP
閲濊叧鏁�(sh霉)	8
宸ヤ綔婧害鑼冨湇	0掳C to +70掳C
灏佽椤炲瀷	DIP
宸ヤ綔婧害鏈€浣�	0掳C
宸ヤ綔婧害鏈€楂�	70掳C
鍣ㄤ欢妯�(bi膩o)铏�(h脿o)	3845
鎺у埗鍣ㄩ鍨�	PWM
婧害鑼冨湇	鍟嗙敤
闆绘簮闆诲 鏈€澶�	25V
闆绘簮闆诲 鏈€灏�	12V
鑺墖妯�(bi膩o)铏�(h脿o)	3845
琛ㄩ潰瀹夎鍣ㄤ欢	閫氬瓟瀹夎
杓稿叆闆诲 鏈€澶�	25V
杓稿叆闆绘祦	11mA
杓稿嚭闆绘祦鏈€澶�	1A
杓稿嚭椤炲瀷	Totem Pole
杓稿嚭鑳介噺锛� 姣忓懆鏈�	5渭J
閭忚集鍔熻兘铏�(h脿o)	3845A
闆绘簮鑺墖椤炲瀷	PWM鎺у埗鍣�

鐗归粸(di菐n)

閲濆皪(du矛)闆㈢窔鍜孌C-DC杞�(zhu菐n)鎻涘櫒閫�(j矛n)琛屼簡鍎�(y艒u)鍖�
浣庡暉鍕�(d貌ng)闆绘祦(<1 mA)
鑷嫊(d貌ng)鍓嶉瑁�(b菙)鍎�
閫愯剤娌栭浕娴侀檺鍒�
澧炲挤(qi谩ng)鐨勮矤(f霉)杓夐熆鎳�(y墨ng)鐗规€�
閬叉化娆犲閹栧畾
闆欒剤娌栨姂鍒�
澶ч浕娴佸湒楱版煴杓稿嚭
鍏�(n猫i)閮ㄤ慨鏁寸殑甯堕殭鍩烘簴(zh菙n)
楂橀仈(d谩)500kHz鐨勫伐浣滈牷鐜�
浣庤几鍑洪浕闃昏宸斁澶у櫒

闆昏矾鍦�

寮曡叧鍦�

寮曡叧鍔熻兘瑾槑

寮曡叧	寮曡叧鍚嶇ū	鎻忚堪
1	瑁�(b菙)鍎�	瑭茬鑵崇偤瑾ゅ樊鏀惧ぇ鍣ㄨ几鍑猴紝骞跺彲鐢ㄤ簬鐠�(hu谩n)璺(b菙)鍎�銆�
2	闆诲鍙嶉	瑭茬鑵虫槸瑾ゅ樊鏀惧ぇ鍣ㄧ殑鍙嶇浉杓稿叆绔�锛岄€氬父閫氶亷涓€鍊�(g猫)闆婚樆鍒嗗鍣ㄩ€ｈ嚦闁嬮棞(gu膩n)闆绘簮杓稿嚭銆�
3	闆绘祦鍙栨ǎ	涓€鍊�(g猫)姝ｆ瘮浜庨浕鎰熷櫒闆绘祦鐨勯浕澹撴帴鑷虫杓稿叆锛岃剤瀵(di脿o)鍒跺櫒浣跨敤姝や俊鎭腑姝㈣几鍑洪枊闂�(gu膩n)鐨勫皫(d菐o)閫�銆�
4	RT/CT	閫氶亷灏囬浕闃籖T閫ｆ帴鑷砎ref浠ュ強闆诲CT閫ｆ帴鑷冲湴锛屼娇鎸暕鍣ㄩ牷鐜囧拰鏈€澶ц几鍑哄崰绌烘瘮鍙(di脿o)銆傚伐浣滈牷鐜囧彲閬�(d谩)1MHZ 銆�
5	鍦�	瑭茬鑵虫槸鎺у埗闆昏矾鍜岄浕婧愮殑鍏叡鍦�(鍍呭皪(du矛)8绠¤叧灏佽濡傛)
6	杓稿嚭	瑭茶几鍑虹洿鎺ラ﹨(q奴)鍕�(d貌ng)鍔熺巼MOSFET鐨勬煹妤碉紝楂橀仈(d谩)1.OA 鐨勫嘲鍊奸浕娴佺稉(j墨ng)姝ょ鑵虫媺鍜岀亴锛岃几鍑洪枊闂�(gu膩n)闋荤巼鐐烘尟钑╁櫒闋荤巼鐨勪竴鍗�銆�
7	VCC	瑭茬鑵虫槸鎺у埗闆嗘垚闆昏矾鐨勬闆绘簮銆�
8	Vref	瑭茬鑵崇偤鍙冭€冭几鍑�锛屽畠閫氶亷闆婚樆RT鍚戦浕瀹笴T鎻愪緵鍏呴浕闆绘祦銆�