LED/光电探测器隔离器的基础知识分享

时间： 2023-12-08 来源：先进光半导体知乎

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就性能和保护而言，光耦合器隔离电源通常是最安全、最实用的方法。以下是先进光半导体总结的当今LED/光电探测器隔离器的基础知识，以及将其应用于系统所需了解的内容。

初级系统设计人员经常将系统的电源要求放在列表的末尾，因此忽略了隔离式与非隔离式AC/AC、AC/DC、DC/AC或DC/DC转换器的重要性。真正的隔离（输入端的变压器，电源反馈控制环路中的光隔离器）几乎消除了电源输入级与其输出端子/负载之间的任何直接导电路径。这在高功率密度应用中尤其重要，这些应用越来越普遍，而不是例外，以及通常将电源置于爆炸性或其他危险环境中的更苛刻的系统要求。

使用光耦合器还可以断开接地环路，此功能对于消除共模噪声很有价值，特别是对于在较高工作电压下工作的系统。当系统中的不同电源连接在一起时，由于接地电位的微小差异，往往会感应出接地环路电流。此外，在各种电源状态之间切换的设备中，电源往往会看到瞬态噪声（当今的光耦合器能够承受高达40kV/微秒的瞬态共模电压）。

用于执行这种所谓的电流隔离功能的典型光耦合器（实质上是将本质安全电路连接到存在安全风险的电路）包括LED、光电检测器和电源输出至输入反馈环路中的适当连接电路（图1）。

在一般电路操作中，由电源PWM驱动的光耦合器充当维持电源所需输出电压的链路。当输出电压因线路和/或负载变化而偏离时，电源的误差放大器会尝试进行补偿。它将输入与基准电压进行比较，误差信号因此控制PWM的输出。反过来，PWM通过光耦合器引导初级侧功率MOSFET。

美国UL、欧洲CENELEC、加拿大CSA和日本TIIS等监管机构的标准设定了使电路本质安全所需的功率水平。从本质上讲，这些标准设定了“安全”电路与外界之间的电流隔离栅的要求。为获得最佳效果，请按照IEC EN-60747-5-2的建议选择具有额外增强绝缘的光耦合器。加强绝缘确保防触电，并提供故障安全模式。故障安全技术可终止系统操作，并在发生故障时使系统进程和组件处于安全状态。

替代方案

光耦合器有替代品。这些包括磁性和电容耦合器，它们可能适合您的应用。但请注意权衡取舍。光耦合器具有工作在低至直流的优势，而变压器等磁隔离器通常指定在某些交流带宽下。磁隔离器需要内置的数据刷新功能来检测稳态信号。此外，开关电源瞬变产生的短脉冲高频能量可能是EMI的来源，RFI可能会影响磁隔离器的功能。

在这种情况下，光耦合器通常更鲁棒，因为电磁信号不会干扰光信号，而不是穿过磁耦合器中的磁隔离栅传输的磁信号。光耦合器还具有增强型绝缘认证。

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本文由玉鹤甘茗转载自先进光半导体知乎，原文标题为:如何选择合适的光继电器，本站所有转载文章系出于传递更多信息之目的，且明确注明来源，不希望被转载的媒体或个人可与我们联系，我们将立即进行删除处理。

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SERIES,862-1694,2734-102/031-000,862-1693,279-409,750-466/025-000,280-301,280-302,280-303,279-415,280-306,769-176/000-012,231-876/001-000,280-308,280-309,750-421,750-425,281-613/281-417,750-428,750-427,750-408,281-613/281-418,750-407,750-409,739-3212,750-636/000-800,2004-4XX,750-508/040-000,787-878/000-2500,279-422,280-312,2110-12XX,769-176/000-006,2200-12XX,280-315,280-319,750-412,750-415,750-414,765 SERIES,2004-1311/1000-410,285-117X,727 SERIES,855-9150/2000-1251,2004-1311/1000-411,232-324/026-000,787 SERIES,279-432,279-433,2091-1352,734-442/001-000,2759-207/271-1000,285-118X,734-362/008-000,750-427/040-000,2091-1362,750-431,750-430,750-432,279-440,750-439,231-2116/026-000,816-XXX,734-332/018-000,862-1652,2202-1711/1000-867,250-2XX,810 SERIES,233-4XX,20066,211-500,284-341,2006-12XX,750-461/000-200,769-251/000-006,260-XXX,284-339,284-330,794-XXXX,2022-2234/999-953,2204-13XX,279-470,279-471,2606-3352,284-328,2065-XXX,2202-1711/1000-836,284-325,862-1662,734-520/037-000,770-7XX,2616-1102/020-000,279-483,279-482,2606-3362,2231-1XX,2616-1352,231-102/031-000,2616-1358,706-2500,750-484/000-001,255-5XX,2004-1411/1000-411,2004-1411/1000-410,862-1603,862-1605,862-1604,279-490,832 SERIES,279-492,2022-106/999-953,870 SERIES,750-491,2002-1911/1000-836,750-493,750-502/000-800,750-492,750-495,750-494,750-497,750-496,206,231-346/108-000,750-494/025-000,207,750-498,281-512,209,281-511,793-4XXX,750-494/025-001,859-4XX,231-742/001-000,862-1632,862-9594,862-1634,862-1633,210,211,750-1491,862-1625,215,862-9593,218,2002-171,750-508/000-800,750-665/000-001,2002-172,750-624/020-001,750-624/020-002,2787-2448,857-7XX,221,222,236-2XX,862-1615,2002-160,2002-161,2202-1981/1000-435,2202-1981/1000-434,769-221,792 SERIES,769-222,2624-1512,862-1525/999-950,231,769-217,2002-2647,232,233,234,756-8XXX,231-102/008-000,235,236,2020-12XX,769-214,731-132,284-9XX,2202-1981/1000-449,769-231,769-232,221-941/000-006,769-233,2624-1502,769-227,231-125,243,279-1XX,2002-1308,769-223,2002-1301,247,248,249,2857 SERIES,231-128,231-129,781 SERIES,232-376,231-562/001-000,2002-2662,2002-2661,250,793-472,252,787-1014,254,255-4XX,255,256,257,258,787-1017,2002-2667,2002-1411/1000-410,2002-1411/1000-411,2091-1638/024-000,787-1012,787-1011,2734-220,750-457/025-000,857-982,769-211,260,262,857-986,787-1002,231-100,769-207,769-201,787-1007,769-202,769-203,2002-2657,2010-5XX,2002-1211/1000-411,2002-1211/1000-410,787-1001,750-1505,750-1506,857-979,862-9615,750-1501,750-1502,231-216/026-000,2606 SERIES,750-1504,750-517/040-000,2002-2604,279,857-980,2202-1911,750-1516/040-000,857-981,787-2861/050-000,739-232,2002-2601,2002-2608,281-623/281-541,2002-2607,750-1516,862-9603,862-9605,741-2XX,862-9604,284-308,232-262/031-000,232-362,750-1515,745-582,280,281,282,283,284-301,284,284-302,285,745-585,2202-1904,288,2202-1902,289,2202-1901,2022-105/000-039/999-953,281-622/281-418,2759-204/261-1000,281-622/281-417,722-8XX,750-455/040-000,787-1021,787-1020,2202-1907,787-1022,232-332,2716-108,210-331/762-202,294,2716-102,862-9634,862-9633,2604-1102,812-XXX,855 SERIES,233-3XX,862-9625,750-626/040-000,2734-202/031-000,232-346,2604-1112,2002-2611,739-242,2002-2612,235-8XX,2002-1391,231-193,2002-24XX,2002-1394,2091-1372,231-195,2202-1611/1000-836,210-254,210-251,733-3XX,210-250,221-500/000-053,852-1816/010-000,2000-14XX,765-1XXX,2061-XXX,2091-1382,2004-1211/1000-410,2004-1211/1000-411,281-485,281-482,281-483,2006-1611/1000-542,2006-1611/1000-541,243-7XX,231-832/001-000,2002-8XX,739-212,2721-120/037-000,750-400,2002-1981/1000-429,750-402,750-401,216-5XX,231-632/018-000,750-404,750-403,750-406,750-405,750-636/000-700,281-492,281-490,2002-2611/1000-867,2716-158,739-202,750-637/000-002,750-637/000-001,750-637/000-004,2716-152,750-637/000-003,750-1500,2787-2346/000-070,750-473/005-000,2002-1981/1000-414,2002-1981/1000-413,757-0XX,770 SERIES,773-108/995-010,750-483/040-000,734-372/008-000,231-155,769-257,2003 SERIES,210-297,2616-3102/020-000,759-302/000-923,231-159,2734-202,231-160,231-161,2002-2672,745-655/006-000,750-494/000-001,2202-1981,282-687/999-950,750-494/000-005,2002-2671,221-500/000-006,231-602/019-000,2002-2678,2060-4

选型指南 - WAGO - 05/2022 PDF 英文下载

胜金微电子（SMST）时钟芯片/漏电保护器/数字隔离器/功率器件选型指南

描述- 杭州胜金微电子是一家专业从事高端集成电路芯片研发、销售、应用及服务的高新技术企业。公司拥有芯片研发及应用人员100+，并拥有集成电路相关专利近100项。公司围绕安全环保、绿色节能的开发理念布局了高端时钟、数字隔离器、电源管理、GaN功率器件等，主要应用于新能源、5G通讯、工业控制等领域。可为客户提供定制化产品和解决方案。

型号- SMST5381＿X,SMST5341＿X系列,SMST5351B,SMST539X,SMST5351A,SMST5351C,SMST5341＿X,SMST624X,SMST5330X系列,SMST532XX,SMST52112,SMST650D350,SMST530＿X,SMST52112＿X系列,SMST510＿X系列,SMST695X,SMST784X,SMST54133,SMST683X,SMST710X,SMST754X,SMST621X,SMST69XX,SMST54123L,SMST697X,SMST786X,SMST63XX,SMST714X,SMST65XX,SMST52112＿X,SMST30C,SMST650D200,SMST530＿X系列,SMST54123,SMST650D240,SMST120C,SMST100C,SMST54123F,SMST758XX,SMST54X,SMST532XX系列,SMST696X,SMST684X,SMST650D600,SMST781X,SMST54123A,SMST650D800,SMST5147B,SMST622X,SMST755X,SMST610X,SMST654X,SMST5145,SMST626X,SMST715X,SMST5146,SMST614X,SMST658XX,SMST5147,SMST650D140,SMST510＿X,SMST650DXX,SMST5381＿X系列,SMST782X,SMST623X,SMST534X,SMST68XX,SMST655X,SMST538X,SMST64XX,SMST615X,SMST5159,SMST5152,SMST150C,SMS5901,SMST5154,SMST5330X,SMST60C,SMST650D190,SMST650D500,SMST650D100,SMST662X,SMST56X,SMST650D2K2,SMST682X

选型指南 - 胜金微电子 - 2023/8/8 PDF 中文下载

AOTE（奥特半导体）光电耦合器选型指南

描述- AOTE目前的光电耦合器产品包括:晶体管输出光耦、光电继电器、可控硅输出光耦、高速光耦、达林顿、IGBT驱动光耦等产品，产品广泛应用于智能家居、移动互联、智能仪表、智能汽车、医疗设备、工业控制、消费类及工业级产品领域等，为各行业提供完善服务。

型号- ATW601,AT173,ATW721,AT174,ATW720,AT172,AT177,AT176,ATW723,ATC7723,AT2020,AT075L,AT2023,AT8801,AT2021,AT2022,ATC7720,ATC7721,ATN350,AT333J,ATN7720,ATN7721,ATN7723,AT2012,AT3223,AT2013,AT074L,AT2011,AT0631,AT0630,AT1722,ATN3120,AT0511,ATW501,AT17X,AT2041,AT3010,AT2042,ATM723,ATM721,ATN139,AT3011,AT2043,ATM601,AT3012,ATN261L,ATN137,AT202X,ATN138,ATM720,ATN135,ATN136,AT2601,ATH87BT,ATN3150,ATW611,ATS258,ATS259,AT3120,AT2031,AT4NXX,AT7723,AT2032,AT2154,AT2033,AT7840,ATC87AT,AT8016,AT0530,AT7720,AT7721,AT0531,AT852,AT0534,ATN3140,AT201X,AT851,ATC261L,ATV25X,ATC53X,ATC79A,AT330J,AT2222,ATM343,ATM3011,AT2223,AT58X,ATM341,AT0721,ATM3013,AT127,AT0720,ATM3012,AT0723,ATC79B,AT0601,ATX213,AT22X,AT481,ATH11L2,AT480,AT4AXX,ATH11L1,ATH11L3,AT308X,ATC790,ATM456,AT2213,AT357,AT358,ATH87AT,AT21X,AT6N136,AT6N135,AT6N138,AT6N137,AT155,AT6N139,AT332J,ATY258H,AT827,AT2122,AT825,AT826,ATM3031,ATM3033,AT3213,ATM3032,AT101X,AT0501,ATM480,ATM481,ATX223,AT331J,AT816,AT817,AT25A,AT814,AT815,ATM3020,AT3H7,ATN201,AT3H4,AT818,ATM3022,ATM3021,AT0611,ATN200,ATM3023,ATM301X,AT452,ATV21X,ATV45X,AT451,ATN6N139,ATN6N137,ATC511,ATN6N138,ATN6N135,ATN6N136,AT305X,ATM3051,AT208X,ATM3053,ATM3052,AT1213,AT54X,AT42X,ATM303X,ATC4504,ATC4506,AT562,AT563,AT252A,AT561,AT3061,AT3062,ATC501,AT3063,AT41X,ATM3042,ATC74L,ATM3041,AT304X,ATM3043,AT314,AT553,AT817X-UNY-W,ATM302X,AT53X,ATV258,AT350,ATC63X,ATV256,AT354,ATH790,AT4506,AT226,AT223,AT4504,ATM305X,AT224,ATV254,AT56X,ATV252,ATV253,6N137,6N136,AT581,AT343,AT222,6N135,ATS258H,AT340,AT582,AT341,AT3H74,AT583,AT41XS,AT3082,AT3083,AT3081,ATN4506,ATN4504,AT306X,ATM314,ATM3062,ATM3061,AT1223,ATM3063,ATC64L,AT214,AT215,ATM304X,AT212,AT213,AT216,AT55X,AT6N437,ATV41X,AT3031,AT2063,ATN827,AT3032,AT3150,ATN826,AT2061,ATN825,AT2062,ATM501,AT3033,AT301X,ATC87BT,AT204X,AT522,AT523,AT520,AT521,ATW511,ATY259,AT337J,ATS25X,AT3020,AT2052,AT3021,AT2053,AT3140,AT2051,ATM3082,ATM3081,ATM611,ATC70A,AT3022,AT3023,ATM3083,AT203X,ATM306X,AT0314,ATY258,H11L1,AT551,AT552,AT316J,AT2081,AT2082,AT3H44,AT3053,AT3051,AT2083,ATC611,AT3052,AT206X,AT52X,AT0341,AT0343,AT303X,AT0223,AT542,AT543,AT541,AT339J,AT3042,AT3043,ATC601,AT3041,AT302X,ATM511,ATM308X,AT205X,AT0213,AT533,AT531,AT2514,AT532,ATY25X,AT415

选型指南 - AOTE - 2024/6/19 PDF 中英文下载

Littelfuse（力特）集成电路选型指南

目录- Products overview Solid State Relays Introduction Gate Drivers Introduction High Voltage Isolated Analog Switches/Optocouplers/MOSFETS Introduction Non-Volatile Digitally Programmable Capacitors/High-voltage LED Drivers Introduction Multifunction Products/Voltage Monitoring & Sensing IC Introduction Solid State/Optically Isolated Power Relays Optically Isolated AC Power Switches Gate Drivers & Linear/Standard Optocouplers Depletion Mode MOSFET and Telecommunication/Multifunction Products Global Lab Capabilities

型号- LF2136BTR,LF2113BTR,IXD_614CI,CPC1225N,IAD110P,CPC1019N,IXD_609PI,ITC135P,CPC1335P,CPC3960Z,TS190PL,IAD110,LAA120,LF2113B,LAA127,PAA150,LAA125,CPC1006N,CPC1018N,LF2101N,PAA190S,CPC3720C,PBB190,LBA127P,LCA120LS,LBA127L,LAA110,CPC1114N,CPC1017N,LBA127S,PLB190S,CPC1394GR,LBB120,PAA191S,LF2104N,LBB126,LBB127,CPC2317N,IXD_602D2,IX4340N,LAA100,CPC1125N,CPC1004N,CPC1016N,PBA150S,CPC1394GV,LAA108,CPC1786J,CPC3710C,LBB110,CPC1966BX8,IXD_630MYI,LF2103N,LBA127LS,LCC120,LCA182,LF2388B,PLA192S,XAA170P,TS190LS,XAA170,LF2190NTR,LF2110B,CPC1393GR,CPC7524,PLA110LS,CPC7695Z,PLA193S,CPC1981Y,IXD_604SIA,CPC1002N,LBA120P,CPC1014N,CPC1135N,LBA120S,PAA191,LBA120L,CPC1788J,PAA190,CPC1393GV,PAA193,CPC1510G,IXD_609SI,LF2113,LF2110,LCB710S,LF2136B,TS117PL,CPC1231N,CPC1001N,CPC1025N,CPC1983B,PAA140LS,CPC1777J,LBB127P,CPC3701C,LOC110,XBB170,IXD_630YI,LOC111,LOC112,LBB127S,PLA190S,CPC1511Y,LOC117,PLA191S,LCA110LS,LBA110L,CPC1983Y,CPC1230N,CPC1963GS,CPC7695B,LBA110S,CPC1972G,TS190,LBA110P,PLB171P,LF2304NTR,LBB126P,LBB126S,CPC3714C,FDA217,XAA170S,CPC1984Y,FDA215,TS120S,LF2136,TS120P,LAA100S,LAA100P,CPC1983YE,LCB716S,LAA100L,LAA120LS,LF2304N,LOC11X,XS170,CPC1593G,CPC2125N,OAA160,IAB110P,LAA110PL,CPC1918J,MXHV9910,LCA182S,CPC1330GR,CPC5622A,LCA129,LCA127,LCA125,CPC1510,CPC1511,CPC1906Y,CPC2017N,LCA120,PAA150P,LCA712S,CPC1907B,PAA150S,LAA110S,NCD2400M,LAA110P,XAA117,LF21904N,LAA110L,ITC117L,TS117LS,PS1201,XCB170,LOC112S,ITC117P,LCA110,LF2103,PAA140L,CPC1908J,LF2110BTR,CPC1560GS,PS2401,LOC111S,CPC1596G,LOC112P,CPC1330G,CPC1560G,LCA220,LCA100,PAA140P,LCA710S,LAA120PL,CPC1560S,PAA140S,CPC1909J,LAA120P,CPC5712U,LAA120L,CPC1593GS,LF2106N,CPC1561B,LOC110S,LOC110P,PAA193S,LOC111P,CPC5603C,OAA160S,OAA160P,FDA217S,LCA715S,LCC110P,CPC3980Z,LCC110S,LCC110,LAA120S,IX4310T,CPC3982T,CPC1943GS,FDA215S,XCA170,CPC5602C,LBA120,OMA160S,LBA127,LCC120S,CPC1106N,CPC1009N,CPC1333G,CPC1563G,LCB127,LCB126,LBA110,IAA110P,ITC137P,LCB120,LCA701S,IXD_604D2,LF21814N,LCB717S,CPC1117N,CPC1008N,CPC1540G,CPC3730C,LF2388BTR,LCB111,LCB110,PLA132S,LCB110S,LAA108S,CPC1727J,CPC1945G,CPC40055ST,LAA108P,PLA160,CPC1945Y,IXD_614SI,LF2104NTR,LCA127LS,XBB170S,CPC1580,XBB170P,PAA110L,CPC1966YX8,XAA117P,CPC1966YX6,XAA117S,LBA710S,LF21064N,PLA170,CPC5712,CPC1593,PAA110P,LF2181N,LF21904NTR,CPC1596,PAA110S,CPC1590,LBA716,LAA125PL,LCB120S,LAA100LS,CPC1393G,PLA140,CPC1705Y,PLA143,LBA710,LCA717S,LF2184N,CPC3909C,PLA140LS,PLA143S,CPC1718J,LCB717,LCB716,CPC1333GR,LCB710,CPC1394G,CPC1706Y,PLA150,IXD_602SI,NCD2100,OMA160,IX4351,LBA110PL,IXD_609SIA,CPC3909Z,LCB126S,PBB190S,LF2184NTR,XS170S,LCA210,CPC1540,LF2190N,IX4427N,IXD_609D2,IX4427M,LBA120LS,LF21844N,CPC1708J,IXD_609CI,LAA127S,CPC1563GS,LAA127P,LAA110LS,CPC1540GS,LAA127L,CPC2907B,LCA110S,CPC1926Y,TS190S,TS190P,CPC2025N,PLA132,TS190L,PLA134,IX4428M,CPC1590P,LCA110L,IX4428N,LAA100PL,CPC1927J,PLA110S,CPC1709J,LAA710,IXD_630MCI,CPC1596GS,PLA134S,PLA110L,CPC5621A,LOC117S,LOC117P,CPC1560,CPC3980,CPC2014N,CPC1563,LF2106NTR,IXD_614YI,LAA125S,PS2601,LAA125P,LCB111S,LAA125L,CPC2330N,CPC1916Y,CPC5620A,LCA120S,PLA110,PAA132S,IX4426M,IX4426N,LCA120L,CPC1580P,LCA100LS,PLA160S,IAA110,PLA172P,ITC117PL,LBA110LS,IX4340UE,CPC1035N,CPC1961G,CPC1779J,CPC9909,LCA125S,PM1204S,LCA210S,LF21844NTR,CPC3703C,LCA125L,PAA110PL,LAA710S,LCA210L,CPC1973Y,LBB120S,CPC1010N,LF2101NTR,CPC1986J,CPC1998J,XCB170S,CPC1964BX6,LBB120P,PLA194S,CPC1510GS,PLA170S,CPC1130N,CPC1972GS,PM1206S,CPC1963G,CPC1390GV,LAA127LS,PLB190,LCA220S,CPC1390GR,PLB150S,IXD_604PI,CPC1976YX6,XCA170S,PD2601,LF21814NTR,CPC1020N,CPC1964B,PLA171P,CPC1961GS,IX4351NEAU,LCB127S,CPC1988J,PM1205S,LCA210LS,IBB110,LCA100S,CPC7514,CPC7512,IXD_609YI,LCA100L,LBB110S,LBB110P,CPC1976Y,PLA140S,PLA140L,CPC1965G,ITC135,ITC137,PD1201,CPC1977J,PAA110,TS120,LCA129S,PBB150S,LF21064NTR,LCA125LS,PBB150P,CPC1965Y,PAA110LS,CPC1030N,CPC3902Z,CPC3708Z,CPC1966B,CPC1978J,CPC5622-EVAL-600R,IXD_630CI,PM1206,PM1205,PM1204,PBB150,CPC1966Y,IX4351NE,LF2181NTR,CPC3708C,PLA150S,CPC1150N,PAA127P,LAA127PL,PAA127S,TS118S,PAA140,CPC1967J,TS118P,CPC1979J,CPC1943G,LAA125LS,LCA717,ITC117,LCA715,LCA712,CPC2030N,LCA710,PAA132,PLB150,LCA127L,PBA150,IXD_602PI,IX4340NE,LCA127S,IAB110,IXD_602SIA,TS117S,LBA716S,LF2103NTR,TS117P,CPC1968J,TS117L,PD2401,LCA701,PLA190,PAA127,PLA191,PLA192,PLA193,IBB110P,PLA194,IXD_614PI,CPC1390G,IXD_604SI,CPC1726Y,TS117,TS118

选型指南 - LITTELFUSE - 0422 PDF 英文下载

【产品】低至0.01%伺服线性度单通道线性光耦合器，总谐波失真为-87dB

LITTELFUSE的子公司IXYS推出的LOC110为单通道线性光耦合器，具有大于200kHz的宽带宽、高达3750Vrms的输入到输出的隔离电压、低至0.01%的出色的伺服线性度、低至3pF的输入/输出电容、低至150mW的输入功耗和较高的增益稳定性等优点，非常适用于无插入损耗的调制解调器变压器、数字电话隔离、电源电压/电流反馈、医疗传感器隔离、音频信号接口、过程控制传感器隔离等领域。

新产品发布时间 : 2018-08-10

HK2291 4-Pin SSOP Phototransistor Optocouplers

型号- HK2291 SERIES,HK2291X(Z)-GV,HK2291A,HK2291B,HK2291A(T1)-GV,HK2291B(T1)-V,HK2291C(T2)-G,HK2291C,HK2291D(T2),HK2291D,HK2291

数据手册 - 华润微电子 - 202311 PDF 英文下载

固态继电器哪个品牌好？

固态继电器，比如德国pilz，是较好的品牌。Silicon labs有可以替换固态继电器的芯片Si875x系列。Si875x系列是基于CMOS技术的突破性隔离型场效应晶体管（FET）驱动器家族产品，这使得开发人员能够使用自己选择的特定应用和高容量的FET去替代过时的机电继电器（EMR）和基于光耦合器的固态继电器（SSR）。Si875x系列产品是业内首款隔离型FET驱动器，设计旨在利用集成的CMOS隔离栅传输电源，这消除了通常所需的隔离的次级侧开关电源，减少了系统成本和复杂性。当与分立FET搭配时，Si875x驱动器提供业内一流的EMR/SSR替代解决方案，适用于电机和阀门控制器、HVAC继电器、电池监控、交流干线与通信交换机、HEV/EV汽车充电系统和其他工业和汽车应用等。更多信息请点击链接查阅：http://www.sekorm.com/news/3744.html

技术问答发布时间 : 2017-08-21