【成功案例】圣邦微电压监测及看门狗芯片SGM706-SYS8GTR在工业级网关中的应用
科技不断进步，我们身边的电子设备越来越多。这些电子设备中，有很多都集成了硬件看门狗电路。特别是一些工业级应用，硬件看门狗电路就显得格外重要了。这是保证系统稳定工作的重要电路。
笔者经手一个工业级网关项目，在另一篇文章（介绍理光RP402N501E-TR-FE升压DC/DC转换器）中有提到过。这里简单分享一下笔者的设计与心得。该网关的设计框图如图1所示。图中的电源监视及硬件看门狗部分，采用了圣邦微（SGMICRO）SGM706-SYS8G/TR方案。
图1 工业级网关框图
该项目中，CPU主要供电电源是3.3V，因为笔者对电源监视这一块不是很关心，主要需求是硬件看门狗这个功能，故而选型时没有选取3.08V的SGM706-T系列，而采用了监视电压为2.93V的SGM706-S系列。考虑该方案的主要因素还是工作温度范围，因为该项目要求所有器件必须达到工业级温度，而SGM706-SYS8G/TR的-40℃-+85℃超宽工作温度范围，完全符合项目需求。图3为该项目中SGM706-SYS8G/TR的设计原理图。
图2 SGM706-SYS8G/TR实物图
图3 SGM706-SYS8G/TR原理图
图3中，VD33为系统工作电源，K1为手动复位触发信号按键，nRst连接到ARM9 CPU的复位引脚。在上电后，ARM9 CPU在boot时就产生了一定频率PWM波形（笔者为50Hz），输入到WDI引脚。这一点至关重要。因为SGM706-SYS8G/TR在WDI引脚1.6S内没有接收到切换电平，将会在RESET引脚产生一个200ms的复位信号。所以利用这个功能，在CPU故障后，将会准确的触发系统复位信号，完成系统重启工作。另外前面提到，笔者不关心电源监视功能，故而在设计上，并未使用电源故障检测功能，所以将PFI引脚接至GND（VD33亦可），读者如果有相同需求，一定要记得该引脚的处理，VD33和GND必接一个。图4为WDI波形图。
图4 CPU产生的WDI引脚输入PWM波形图
SGM706-SYS8G/TR的工作电压还是比较宽的，1.0V到5.5V都能正常运行，其低能耗的特点也非常适合在各电子设备中使用。此外，SGM706还有众多的兄弟型号，能够满足不同电压的监视需求。比如SGM706-L系列为4.65V，SGM706-M系列为4.4V，SGM706-J系列为4.0V，SGM706-T系列为3.08V，SGM706-S系列（本文使用的型号）为2.93V，还有SGM706-R系列的监视电压为2.63V。读者朋友可以根据自己的需求，选择合适的产品。图5为SGM706-SYS8G/TR局部电路图。
图5 SGM706-SYS8G/TR局部电路图
经过验证，SGM706-SYS8G/TR在该网关中运行非常稳定，能够非常好的完成系统监视功能。另外笔者这里分享一个小心得。因为看门狗WDI引脚需要1.6S内有转换电平输入。本来这点是很好的功能，但是在生产时有个小问题，产品刚生产时，CPU内部并没有固件信息，无法产生PWM波形，完成“喂狗”操作。这样在烧写固件时，CPU将会被SGM706-SYS8G/TR的复位信号复位。所以在设计时，一定要记得将复位信号（即图3的nRst）与SGM706-SYS8G/TR的RESET引脚（第7脚）的连接方式改为跳线（或者其他类似）的方式。
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描述- SGMICRO specializes in high-performance and high-quality analog and mixed-signal integrated circuits, and is committed to building a comprehensive portfolio of the highest quality analog and mixed-signal integrated circuits to address all customer needs.
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SGM11108M,SGM8306-2,SGM8306-1,SGM61450,SGM3733B,SGM11108E,SGM852,SGM853,SGM851,SGM5347-12,SGM2558A,SGM2558B,SGM8261-5,SGM2564,SGM8261-1,SGM5347-10,SGM8261-2,SGM2549,SGM48017C,SGM72110,SGM8094,SGM836,SGM8091,SGM837,SGM61220,SGM8092,SGM8093,SGM835,SGM72108,SGM2553,SGM72106,SGM2555,SGM809B,SGM4519,SGM4517,SGM4518,SGM48010,SGM11106C,SGM63600,SGM41611,SGM4520,SGM4521,SGM48005,SGM8417-4,SGM8417-2,SGM4051C,SGM48000,SGM48001,SGM48002,SGM3843A,SGM61433,SGM621,SGM84782,74HC574,SGM58031,SGM620,SGM862,SGM41600,SGM2572,SGM41603,SGM860,SGM2571,SGM51622H,SGM4995,SGM4511,SGM2574,SGM4996,SGM4512,SGM4510,SGM2575,SGM51622D,SGM4515,SGM8T245S,SGM4516,SGM8250-1,SGM8250-2,SGM4514,SGM3209,SGM809,SGM8557-3,SGM8557-1,SGM8557-2,SGM803,SGM61012,SGM804,SGM802,SGM61013,SGM810,SGM811,SGM61007,SGM61006,SGM4782,SGM7237B,SGM8902,SGM8903,SGM8904,SGM4542,SGM8905,SGM4548,SGM4549,SGM3699,SGM4546,SGM4547,SGM48013C,SGM62110,SGM61020,SGM62112,AAP6153A,SGM61022,SGM62111,SGM800,SGM2596,SGM3200,SGM3206,SGM8270-2,SGM3207,SGM4535,SGM3204,SGM8270-4,SGM8T245,SGM829,SGM61230,SGM42512,SGM41664,SGM825,SGM61232,SGM823,SGM61234,SGM824,SGM891B,SGM42507,SGM42506,SGM40567,SGM4560,SGM42505,SGM4561,SGM6503,SGM4566,SGM8925,SGM6502,SGM8926,SGM6501,SGM4564,SGM8927,SGM5349-16,SGM4565,SGM6505,SGM4568,SGM6504,SGM8909,SGM818,SGM890B,SGM816,SGM42501,SGM40565,SGM42500,SGM814,SGM815,SGM812,SGM40560,SGM40561,SGM821,SGM822,SGM61235,SGM820,SGM4551,SGM4552,SGM4550,SGM4555,SGM4556,SGM4553,SGM4554,SGM51652S8,SGM8910,SGM5347-8,SGM4558,SGM11124E,SGM37863A,SGM11124F,74LVC2T45,SGM893B,SGM4581,SGM8941,SGM4582,SGM4583,SGM48521Q,SGM8704,SGM4588,SGMNQ59430,SGM8705,SGM4589,SGM8706,SGM8707,SGM8942,SGM8701,SGM8702,SGM8703,SGM12213A,SGM11210A,SGM61060,SGM2050C,SGM12UB1D2,SGM892B,SGM8276-4,SGM6510,SGM4573,SGM3001,SGM4574,SGM42513,SGM6514,SGM3005,SGM6513,SGM4578,SGM8276-2,SGM3002,SGM6512,SGM42622B,SGM8276-1,SGM3003,SGM6511,SGM4576,SGM8931,SGMOP17C,SGM8932,SGM8933,SGM6516,SGM12214A,SGM8934,SGM6515,SGM11210M,SGMNE20220,74AVC8T245,SGM3141B,SGM61030,SGM42403Q,SGM42553,SGM61032,SGM61031,74HC165,SGM62116,SGM8953-1,SGM62118,SGM8953-2,SGM62117,SGM8708,SGM8709,SGM4075-2,SGM3140B,SGM61040,SGM4075-1,SGM42544,SGM7300A,SGM7300B,SGM42541,SGM42540,SGM8951,SGM8952,SGM8710,SGM4590,SGM5200,SGM38045,SGM38042,SGM6533,SGM8711,SGM8712,SGM8955,SGM38046,SGM8956,SGM2053S,SGM8199L2,LM2904,SGM8199L1,SGM41002,SGM8968-4,SGM8968-2,LM2902,SGM8968-1,SGM8740,SGM8741,SGM8742,SGM2077A,SGM8743,SGM2077B,SGM8263-1,SGM8748,SGM8263-2,SGM8417-1,SGM8749,SGM12CB1A5,SGM8744,SGM40666B,SGM8745,SGM11104S,SGM40666A,SGM8746,SGM8747,SGM41513D,SGM41513A,SGM42561,SGM42560,SGM8957-1,SGM8957-2,SGM42562,SGM5208-14,SGM5223,SGM48018C,SGM11102F,SGM11102G,SGM41512A,SGM37603A,SGM8521,SGM8522,SGM11102S,SGM33685A,SGM5018,SGM33685B,SGM33685C,SGM8524,SGM8604-1,SGM11103E,SGM8604-5,SGM8193A3,SGM11103F,SGM8604-2,SGM8193A2,SGM48019C,SGM8604-3,SGM8193A1,SGM8193A0,SGM37604A,SGM8751,SGM11103S,SGM41007,SGM41008,SGM6332,SGM8750,FT2830P,SGM11212M,SGM41280,SGM41281,SGM41283,SGM5353-16,SGM37891A,SGM41285,SGM41286,SGM7SZ244S,SGM8542,SGM51652H8,SGM8543,SGM8301,SGM8544,SGM8302,SGM8545,SGM51652H4,SGM8541,SGM8429C-4,SGM8304,SGM8607-2,SGM37892A,SGM13003A,SGM8531,SGM8773,SGM8532,SGM8534,SGM8770,SGM8771,SGM8772,SGM8535,SGM8536,SGM8537,SGM12024A,SGM8538,SGM65230,SGM37893A,SGM65231,SGM65232,SGM8969-2,SGM8969-1,SGM13002A,SGM2035C,SGM7232,SGM9128YP,SGM41291,SGM2036S,74LVC1G32Q,SGM13001C,SGM13001B,74LVC138,SGM2581E,SGM8958-2,SGM41295,SGM13001A,SGM8958-1,SGM7222,SGM6132,SGM8554,SGM7223,SGM8555,SGM7224,SGM6130,SGM8556,SGM2581C,SGM8551,SGM7220,SGM2581A,SGM8552,SGM7226,SGM7227,SGM7228,SGM7229,SGM44599,SGM8581,SGM8713A-1,SGM8582,SGM6613A,SGM8584,SGM832B,SGM41282C,SGM832A,SGM8714B-1,SGM8924A,SGM811C,SGM5355-16,SGM7SZ19,74LVC1G125,SGM48535B,SGM89000,SGM7SZ14,SGM811B,SGM48535A,SGM48752X,SGM431VB,SGM2560A,SGM37603,SGM2560B,SGM6611C,SGM15CB1A4,SGM810B,SGM41280A,SGM8591,SGM8592,SGM48753X,SGM9203,SGM6612A,SGM8594,SGM8922A,SGM4T245,SGM48753,SGM48754,SGM48755,SGM48756,SGM51242R8,SGM48757,SCM40668,SGM813B,SGM48759,74AVC4T245,SGM8140,SGM8141,SGM48751,SGM449,SGM48752,SGMNQ07430,SGMPM21330,SGM48510,SGM458,SGM3785S,SGM37864,SGM61720,SGM459,SGM37863,SGM457,SGM8142,SGM452,SGM450,SGM451,SGM05UB1B3,SGM37862,SGM37861,SGM05CB1A8,SGM05CB1A7,SGM812B,SGM05CB1A4,74GTL2005,SGM25881,SGM447,SGM448,SGM446,SGM7SZ244,SGM8478-1C,SGM51242R4,SGM8139,SGM51242R2,SGM3705,SGM48536,SGM48537,SGM48538,SGM48539,SGM5351-16,SGM2588G,SGM2588E,SGM2588K,SGM3712,SGM3713,SGM2588C,SGM3710,SGM3711,SGM2588A,SGM48522,SGM48523,SGM48525,SGM48526,SGM48760,SGMNQ07440,SGM48520,SGM48521,SGM8557-5,SGM71XX,SGM706B,SGM460,SGM3701,SGM3700,SGM3727,SGM3741B,SGM3725,SGM3726,SGMOP07,SGM898,SGM899,SGM896,SGM897,SGM895,SGM4823,SGM2566B,SGM3735,SGM3732,SGM4822,SGM2566A,SGM3716,SGM3740B,SGM48544,SGM4806,SGM3717,SGM48545,SGM3714,SGM3715,SGM4809,SGM4807,SGM3718,SGM4808,SGM3719,74LVC157,SGM48780,SGM48540,SGM48541,SGM48542,SGM48543,SGM37898,SGM51652H,SGM51652D,SGM3720,SGM37891,SGM4812,SGM37892,SGM4810,SGM37895,SGM3749,SGM3747,SGM3748,SGM72204A,SGMNQ40430,SGM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目录- 耐高压LDO IC和LDO IC 带使能LDO IC 可调输出LDO IC 三端稳压IC DC-DC 升压/反压IC DC-DC降压/变换IC 低电压检测IC(复位IC) 看门狗电源监测IC 单节锂电线性充电IC/太阳能供电的单节充电IC 电池充电IC 锂电保护IC 电压基准源IC 运放/比较器IC 恒压恒流控制IC 逻辑电路IC 模拟开关IC PWM控制IC I2C实时时钟/日历IC RS232接口IC LED驱动IC 单通道直流有刷马达正反转驱动IC 7/8路达林顿驱动IC 全极性/单极性低功耗霍尔IC
型号- HM7533HMR,HM5450BPR,HM5054B,HM1509HV-3.3,HM5208系列,HM5633BPR,HM7818M5,HM74HC 系列,HM117系列,HM4115MR,HM5501,TL494,HM6216A25PR,HM6234B09M5,HM7345HBPR,HM61N11MR,HM6226P50MR,HM1084T50/TO-252,HM7850PR,HM7818MR,DW03系列,HM2676系列,HM7328HBM5,HM74HC,HM5501DR,HM61C50MR,HM5501系列,HM1156B28DR,HM61N22MR,HM61N45MR,HM5054B系列,HM116A,HM6214系列,HM7328HBMR,HM56XXB系列,HM4057系列,HM432系列,HM7345HBMR,HM73XXN,HM7530HBMR,HM1156B15DR,HM5055DR,HM2940T50,HM4310,HM118系列,HM4115B/ESOP8,HM4313,HM6382P50PR,HM5056R,HM7533MR,HM1235B33PR,HM6235P28MR,HM61N33MR,HM4057D8,HM7336HBM5,HM61N10MR,HM4051A,HM61C09MR,LM393系列,HM6226系列,HM6214P18MR,HM8563S,HM6214P50PR,HM6234B09MR,HM5450BMR,LM2596HVT-12V,HM7828M5,HM6206P18PR,HM7330HBPR,HM6206P28MR,HM1156,HM5511,HM61N44MR,HM61N21MR,HM73XXHB系列,HM6226P30PR,HM4057DR,HM8563M,HM7336HBMR,HM1084T50/TO-220,HM431系列,HM4056系列,HM75XXH,HM62783A,LMV321,HM6234B09PR,HM1558系列,HM61C40MR,HM7850M5,HM1234B28MR,HM5511系列,HM6226P18MR,HM2676HV-12V,HM7542HPR,HM61N36MR,HM75XXHB,HM1235B30DR,HM78LXX,HM117D,HM6206系列,HM317K/1.5A/TO-252,HM7328HBPR,HM4275系列,LM358,HM7530HBPR,HM5430BM5,HM5056ES,HM7518HPR,HM5055系列,HM3232,LM358-18V,HM7840PR,HM6226P50PR,HM7850MR,HM62784A,HM4054E,HM8805,HM61N24MR,LM321,HM6216系列,LM324,HM6214P28MR,HM6214P18PR,HM6234B18MR,HM7660系列,HM7530HPR,HM5418BMR,HM9921,HM1084,HM5633BMR,HM9922,HM9923,HM7550T,LM2596HVS-12V,HM4115,HM6206P18MR,HM5208,HM61N12MR,HM4055H,HM61N35MR,HM78MXX,HM465系列,HM6206P50PR,HM992X系列,HM1235B33M5,HM1156B25DR,HM6234B18M5,HM7333N,HM61C30MR,LM339,HM73XX系列,HM6382B36M5,HM1156B18MR,HM5056系列,AMS1117,HM5431,HM9910,HM5418BM5,HM5430,HM5633BM5,HM6216A25MR,HM5056D8,HM74HC595D,AMS1117T18PR,HM4056E,ULN2004A系列,HM1235B25M5,HM7315HBMR,HM4054系列,HM6219系列,HM6219B28MR,HM809,HM2676HV-5.0,HM2675HV,HM6235P30PR,HM75XX系列,HM5056R系列,HM7320HBPR,LMV358,HM61C42MR,HM4056HA,HM78MXX系列,HM4056HA系列,HM74HC245T,HM1232系列,HM61N30MR,JRC4558,HM5155系列,HM317D/1.0A,HM7315HBM5,HM7340HBPR,HM6208系列,HM6214P15MR,HM6214P28PR,HM7350NPR,HM6206P15PR,HM6206P25MR,HM5056RD8,HM2940系列,HM7840M5,HM6226P28MR,HM6382P27PR,HM6226P18PR,LM393,LM2576HVS-12V,HM61C20MR,L9110系列,HM6206P25PR,HM6206P12MR,HM5501MR,HM74HC138D,HM1156系列,HM1156B30MR,HM7830PR,AMS1117T18B,HM7840MR,LM2596系列,LM2576系列,HM61N40MR,HM1235B12M5,LM258,HM6234B10PR,HM5636BPR,HM6245P30PR,HM6216A30MR,HM1509HV-12V,HM1084TA/TO-263,HM1558,HM6382P28PR,LM339系列,HM7340HBMR,HM809R,HM809S,HM6234B30MR,HM78LXX系列,HM2676HV-3.3,HM4057D系列,HM61C21MR,HM5450BM5,HM6214P25MR,HM809T,HM6214P15PR,HM4051AD,HM2675HV系列,HM61N系列,HM6206P15MR,HM7820MR,HM6206P28PR,HM7833PR,HM1156B18DR,HM6216A33MR,HM7350N,HM61C44MR,HM2676,HM6382P27MR,HM6234B30M5,HM7340HBM5,HM1235B15M5,HM7315HBPR,HM61C33MR,HM61C10MR,HM7320HBMR,HM78L05,HM4115B系列,HM7320HBM5,HM6245P33PR,HM5431系列,HM317D/1.5A,HM61N20MR,HM4056HA/SOT-,HM3232系列,HM61C22MR,L9110,HM6382系列,HM6216A33PR,HM1509E-5.0,HM1509-ADJ,HM5636BMR,HM5636BM5,HM116系列,HM61N,LM2576HVT-12V,HM7830M5,HM6234B30PR,HM61C45MR,HM61C,HM6226P15MR,HM6226P28PR,HM7336HBPR,HM6382P28MR,LM2596S-12V,DW03/SOT-25,JRC4558系列,HM61C11MR,HM78M05,HM6214P12MR,HM1235B33DR,HM6235P30MR,HM4056HA（单灯闪烁）,HM7533HPR,HM75XXH系列,HM7830MR,HM1232,HM5430系列,HM1234,DW03,JRC4580,MC34063系列,HM809系列,HM1235,HM61N42MR,HM1509E-ADJ,HM7820PR,HM29151,HM29152,LM2596S-ADJ,HM4115B,HM5430D4,HM1235B25DR,HM6234B36MR,HM7822MR,HM7845MR,HM7833M5,HM7333HBMR,AMS1117T12B,HM7330PR,LMV321系列,LM258系列,HM7325HBMR,HM6226P12MR,HM6234B15PR,LM2576HVS-3.3,HM61C35MR,HM61C12MR,HM4313系列,HM54XXB系列,HM6234B36M5,HM4056HA/SOT-25,HM29151系列,HM6234B25MR,HM7333HBM5,HM5055,HM5056,AMS1117T25B,HM56XXB,HM7833MR,HM6382P33MR,HM61C系列,LM2596S-5.0,HM3232T,HM1509-5.0,ULN2803A系列,HM6234B12MR,HM5433BM5,HM1156B30DR,HM6234B25PR,HM317/1.5A/SOT-223,HM1084T33/TO-263,HM61C24MR,HM7318HBPR,HM7550HMR,HM1234B30MR,HM1235B28M5,HM8541系列,HM6235P33PR,AMS1117TAB,HM6214P12PR,HM6214P33MR,HM73XX,HM61N18MR,DW03/SOT23-3L,HM1235系列,ULN2804A系列,HM9910系列,HM1084T33/TO-252,HM61C36MR,HM5433BMR,HM1156B12MR,HM5650BPR,HM6206P33PR,HM1235B12DR,HM317,HM6206P20MR,HM7822PR,ULN2803A,HM432,HM7845PR,HM6382B30M5,HM7820M5,HM431,HM6219B40MR,LM321系列,HM6226P25MR,HM7325HBM5,HM6226P15PR,HM6226P33MR,HM1509,HM61C25MR,LM358系列,HM7550HBPR,LM2596HVT-5.0,HM4051AD系列,HM6216A30PR,HM8563系列,HM5650BMR,HM7350NMR,ULN2804A,HM1084TA/TO-252,HM6382P36PR,HM1234系列,HM78XX系列,AMS1117系列,HM5052MR,HM6226P12PR,HM6234B36PR,HM1084系列,LM324系列,HM7350PR,HM7350HBMR,HM1235B15DR,HM7825PR,HM29152S,HM29151S-5.0V,HM6235P25PR,LM2576HVT-3.3,HM5511B,HM61N09MR,HM116MR,HM2940,LM2596S-3.3,HM1509-3.3,HM4070D8,HM74HC04D,HM6234B33MR,HM6234B10MR,HM3171.0A/SOT-223,HM61N50MR,HM5433BPR,HM29151T-3.3V,DW03D,HM2675HVT,HM4070系列,HM2675HVS,HM7350HBPR,JRC4580系列,HM4115系列,HM1084TA/TO-220,HM6206P33MR,HM7333HBPR,HM462,HM7333HMR,HM29151S-3.3V,HM465,HM7836PR,HM2676HV-ADJ,HM8805系列,HM7533HBMR,HM6234B10M5,HM7550HBMR,HM5650BM5,HM61C15MR,HM6234B12PR,LM2596HVS-ADJ,HM4070DR,HM1156B33MR,HM117,HM118,HM6206P15VR,HM6206P45MR,HM317系列,HM116,HM1235B18M5,HM1509系列,LMV358系列,HM6206P12PR,HM6234B33M5,HM7845M5,HM7822M5,HM232,HM7350MR,HM4057HDR,AMS1117T15B,HM4057H系列,HM6382P36MR,HM7533HBPR,HM1156B28MR,HM61C27MR,HM4275S,HM6234B28M5,HM7518HMR,HM5630BPR,HM6214P30MR,HM11
【应用】带看门狗功能的国产电源监控芯片SGM706B-SXS8G/TR助力电力设备板卡设计，电流功耗仅1μA
在电力设备板卡上，要求带硬件看门狗功能，当看门狗不在规定时间喂狗，使主系统彻底复位，防止程序跑飞。本文推荐使用圣邦微的SGM706B-SXS8G/TR作为电源监控方案，用于实现电力控制，是一款带有看门狗复位功能的方案。
应用方案 发布时间 : 2022-12-10
SGM819S Watchdog Timer Circuit
型号- SGM819S,SGM819S-BB,SGM819S-BA,SGM819S-M,SGM819S-BAXN5G/TR,SGM819S-BBXN5G/TR,SGM819S-EA,SGM819S-CA,SGM819S-EB,SGM819S-DAXN5G/TR,SGM819S-CBXN5G/TR,SGM819S-AXN5G/TR,SGM819S-CAXN5G/TR,SGM819S-A,SGM819S-FAXN5G/TR,SGM819S-FBXN5G/TR,SGM819S-EBXN5G/TR,SGM819S-DBXN5G/TR,SGM819S-CB,SGM819S-MN,SGM819S-EAXN5G/TR,SGM819S-FB,SGM819S-FA,SGM819S-DB,SGM819S-DA
【产品】具备看门狗和电源监测的国产复位芯片SGM706B，保证CAN通讯板卡能稳定工作
CAN总线的每个CAN节点有相同的软硬件结构，CAN节点通常包含MCU、CAN控制器、CAN收发器，为防止程序跑飞，在设计的时候需要外加看门狗复位芯片，保证CAN通讯板卡能稳定工作，本文推荐圣邦微电子（SGMICRO）SGM706B-LXS8G/TR。
应用方案 发布时间 : 2022-08-30
【应用】圣邦微复位芯片SGM706应用于机器视觉，兼具看门狗和掉电检测功能
有客户在之前设计的产品中是使用看门狗芯片和电压检测芯片，组合在一起共同实现复位功能，对体积和功耗有着较高要求。推荐圣邦微（SGMICRO）SGM706复位芯片，具备看门狗功能和掉电检测功能，体积仅5*6mm，且静态功耗电流低至50μA。
应用方案 发布时间 : 2021-12-21
请问电压检测器IC能够使用负电源吗？
电压检测器IC绝对不能使用负电源。如果使用了负电源令其工作的话，当电源接入时，IC就有被损坏的危险。使用电压检测IC时，请一定用正电源。
技术问答 发布时间 : 2024-05-31
ROHM（罗姆）电源管理IC选型指南（英文）
目录- Linear Regulators Switching Regulators System Power Supply ICs Non-isolated type ACDC Controller ICs Isolated and Non-isolated Type ACDC Converter Isolated Type ACDC Converter ICs Gate Drivers Temperature Monitor Power Management Switch Wireless Power Battery Management IC Voltage Detectors (Reset ICs)
型号- BD7673AG,BU90006GWZ,BAJ0CC0FP,BD81026MUV,BA18JC5T,BD52XXFVE SERIES,BD18KA5W,BD1CIC0WHFV,BD1CIC0W,BU43XXG SERIES,BH25RB1WGUT,BD18HA3WEFJ,BD7602GUL,BU27TA2WHFV,BD82001FVJ-LB,BAJ2CC0WT,BD12IC0MEFJ-LB,BD50FA1MG-M,BD9109FVM-LB,BD15HA5WEFJ,BD50HC5MEFJ-C,BA70BC0FP,BD50FD0WHFP,BD70GA5MEFJ-LB,BD50HC5MEFJ-M,BM61M41RFV-C,BD9C301FJ,BU48XXF SERIES,BD15KA5WFP,BU1BTD2,BD30GA5MEFJ-M,BD15GC0MEFJ-LB,BD00GA5MEFJ-LB,BM2SC123FP2-LBZ,BD80C0AWFP2-C,BD50GA3WNUX,BD9P135MUF-C,BD18HC0MEFJ-M,BD46EXX1G-M,BU30TA2WNVX,BD71L4LG-1,BD30IC0W,BD95821MUV,BA50JC5T,BD70HC0WEFJ,BD00GC0MEFJ-M,BD8158FVM,BD49XXFVE SERIES,BA25BC0WFP,BD12IC0WEFJ,BD18HA3MEFJ-LB,BD53XXG-2M SERIES,BU32TD3WG,BM6112FV-C,BD87A34FVM,BM2P26CK-Z,BD30GA3W,BD90FD0W,BD52XXG-2C,BD6046GUL,BD47XXG SERIES,BD82006FVJ-M,BD10KA5WFP,BA03CC0FP,BUS1DJC0GWZ,BD433M5FP-C,BD18HC5MEFJ-M,BD90C0AFPS-LB,BU15JA2VG-C,BM2P0361K-Z,BM2P063EK-LBZ,BU30TD2,BD2066FJ-LB,BU30TD3,BAXXDD0T,BAXXDD0W,BA17805FP,BD8313HFN,BD22621G-M,BD80GA3WNUX,BDJ2FC0WFP,BH31NB1WHFV,BD2201GUL,BD6529GUL,BD750L5FP-C,BD82039FVJ,BD9D322QWZ,BD18IA5MEFJ-M,BM2P151S-Z,BD60HA5MEFJ-LB,BH29M0AWHFV,BD95514MUV,BA70BC0,BD70522GUL,BD25KA5WF,BU18JA2DG-C,BD9S200MUF-C,BD33HA5MEFJ-LB,BD3573YFP-M,BD80FD0WHFP,BD9E303EFJ-LB,BD25HA3MEFJ-M,BUXXSD2MG-M,BU29TD2,BD4271HFP-C,BD37210AMUV,BU29TD3,BD45XX1G,BD00HA5MEFJ-M,BD52XXG-2M,BD30GA3MEFJ-LB,BD9701FP,BD25GA5MEFJ-LB,BD8311NUV,BH28RB1WGUT,BU2ATD2WNVX,BU18SA4WGWL,BU32TD2WNVX,BD3539FVM,BD10IC0WHFV,BU12JA2MNVX-C,BAXXBC0,BU48XXFVE SERIES,BH18M0AWHFV,BD33C0AWFP2-C,BD9161FVM,BD18KA5WF,BD9355MWV,BD45EXX2G-M,BA17810FP,BD90C0AWFP-C,BM2P0361-Z,BD82040FVJ,BA90BC0,BD15IC0WEFJ,BD9B100MUV,BA178M07,BA178M06,BA178M09,BA178M08,BM2P241W-Z,BU34DV7NUX,BU1JTD2WNVX,BD42530EFJ-C,BD9104FVM,BD50GC0MEFJ-LB,BDJ6FD0WHFP,BA178M10,BA178M12,BA178M15,BH33RB1WGUT,BA178M10FP,BA178M18,BU46KXX2G SERIES,BD9S000NUX-C,BD90GA3MEFJ-LB,BD70FC0W,BM2P0363F,BD2069FJ-M,BU25TD3,BU25TD2,BD450M5WFP2-C,BD7F100HFN-LB,BD48XXFVE,BA178M20,BD8317GWL,BD9035AEFV-C,BA178M24,BD9P255EFV-C,BM2P051F,BD60GC0MEFJ-LB,BD3508MUV,BU46KXX2G,BD33GC0MEFJ-M,BU10TD2WNVX,BA178M10CP,BD00FC0W,BM2P101EK-LBZ,BDJ2GC0WEFJ,BU30SA4WGWL,BD81870MUF-M,BD42500G-C,BD15FD0W,BA05CC0WT,BA17810CP,BA9743AFV,BA25JC5T,BD9C401EFJ,BU25TA2WNVX,BA33DD0WT,BD30IC0MEFJ-LB,BD22641G-M,BD9B600MUV,BM2P052F,BM2P159PF,BD37A41FVM,BD50HC5WEFJ,BD87A29FVM,BD42540FJ-C,BU2JTD3WG,BD33C0AFP2-C,BM2P053F,BD33GC0MEFJ-LB,BD9874CP-V5,BU46KXX4G,BD49EXXG SERIES,BU21TD2WNVX,BD45EXX5G-M SERIES,BD25IC0W,BDJ2FC0W,BD00C0AWFP2-C,BA3259HFP,BM2P101X-Z,BA08CC0WFP,BD00FA1WEFJ,BD46EXX5G-M SERIES,BM2P054F,BDJ0GA3WNUX,BD7691FJ,BD82004FVJ-M,BD50FC0FP,BM2P060MF-Z,BD15HA5MEFJ-LB,BD50FC0W,BD60FC0WFP,BD48LXXG,BD25GA3W,BA50BC0WFP,BD18HA5WEFJ,BD9060F-C,BA15DD0WT,BA33BC0,BD2051AFJ,BU18TD2BD00HC5WEFJ,BA17809CP,BD6042GUL,BD35395FJ-M,BD80C0A,BD00FC0WFP,BD70GA3WEFJ,BHXXRB1WGUT,BD80FC0WEFJ,BD2266G-M,BM6101FV-C,BD15FD0WHFP,BD80C0AFP-C,BD82020FVJ,BD7690FJ,BD50C0AHFP-C,BDJ0GA3MEFJ-M,BD7684FJ-LB,BAJ0BC0,BA70BC0WT,BA08CC0FP,BDXXIA5,BD50C0AFP-C,BU25TD3WG,BD99950MUV,BM2P0151-Z,BD48EXXG SERIES,BM61S41RFV-C,BU32TA2WHFV,BD95601MUV-LB,BH26M0AWHFV,BD50FC0WEFJ,BU2FSA4WGWL,BM1P067FJ,BD81010MUV,BD9S201NUX-C,BD71L3SHFV,BD90302NUF-C,BD15HC5WEFJ,BD15HA3MEFJ-M,BU6652NUX,BD6528HFV,BD82032FVJ,BDXXIC0,BD00GC0WEFJ,BD9862MUV,BD52W03G-C,BD48W00G-C,BH15M0AWHFV,BU30JA2DG-C,BD91361MUV,BD33GC0WEFJ,BDJ0GA3WEFJ,BUXXSA5WGWZ,BM2P091F,BA33DD0T,BD37A19FVM,BA33DD0W,BD00IA5WEFJ,BD733L2FP-C,BD30KA5FP,BM81100MUW,BDJ2GA3W,BA33D15HFP,BA30BC0,BD2233G,BM2P092F,BD90C0AFP2-C,BU34TD3WG,BH30M0AWHFV,BD50C0AWFP-C,BD45XX1G SERIES,BA00CC0W,BD30GC0WEFJ,BM1Z103FJ,BD9060HFP-C,BD9A302QWZ,BD82044FVJ,BH2JNB1WHFV,BD9G341AEFJ-LB,BD30HC0MEFJ-LB,BM2P093F,BD00HC5MEFJ-LB,BM2P131E-Z,BD2232G,BD47XXG,BAJ0BC0W,BA30JC5T,BD18IC0WEFJ,BAJ0BC0T,BA80BC0T,BU42XXF,BA80BC0W,BU42XXG,BA178M05FP,BD800M5WFPJ-C,BD50GA3W,BD99A41F,BD12KA5WFP,BU28TD2WNVX,BD33IA5WEFJ,BM2P094F,BD49KXXG,BU13TD3,BH30RB1WGUT,BU13TD2,BA15DD0W,BD90C0AWHFP-C,BD6538G-LB,BAXXCC0,BD50HA5WEFJ,BA08CC0,BA15DD0T,BU33UV7NUX,BD733L2FP3-C,BM2P121X-Z,BM2P095F,BU45KXX4G SERIES,BA18BC0FP,BD30IA5MEFJ-LB,BU30JA2VG-C,BD8961NV,BD15HA5MEFJ-M,BD95830MUV,BU45LXX2G,BD45XX2G,BA17805CP,BA17818FP,BD9137MUV,BD70GA5WEFJ,BD48EXXG,BA25BC0,BD18GC0WEFJ,BD30FC0WFP,BD25IA5WEFJ,BD30GA3MEFJ-M,BD4XXM5W,BA00CC0WFP,BD9P205EFV-C,BD9596BMWV,BD8132FV,BD25HA5MEFJ-M,BD9536FV,BD8963EFJ,BD9326EFJ,BU28TD3WG,BD90GC0MEFJ-M,BD4XXM2W,BD50C0AW,BU45LXX4G,BD50GA3MEFJ-M,BD9B300MUV,BD80GC0MEFJ-M,BD15GA5MEFJ-LB,BD45XX5G,BU33SD2MG-M,BA178M18FP,BA25BC0FP,BA17818CP,BA178M05CP,BD18GA5MEFJ-LB,BU49XXG,BU49XXF,BDJ0GA5MEFJ-M,BHXXPB1WHFV,BU29TA2W,BD9227F,BM2P201W-Z,BD49EXXG-M,BD3575YFP-M,BDJ0GA3W,BD25KA5W,BA50BC0T,BD70GC0MEFJ-LB,BA178M18CP,BH29NB1WHFV,BU21TD3,BD30IC0MEFJ-M,BU21TD2,BU18TD3WG,BU28TA2WNVX,BD82024FVJ,BU33SA4WGWL,BD3551HFN,BD60GC0MEFJ-M,BU27TA2W,BM2P209TF,BD9B304QWZ,BU18JA2VG-C,BU33TD2,BU43XXFVE,BA05CC0FP,BDJ0GC0MEFJ-LB,BD33FD0W,BD9615MUV-LB,BM81028AMWV,BA17809FP,BDJ2GA5MEFJ-LB,BU33JA2DG-C,BM2P151X-Z,BD50FA1FP3,BU90002GWZ,BA30E00WHFP,BU33TD3,BD15GA3WNUX,BA9741FS,BA178M09FP,BD9573MUF-M,BU11TD3WG,BD81870EFV-M,BM1
同时具备看门狗功能和掉电检测功能的SGM706B-SXS8G/TR在自动化控制箱(DDC)中的应用
自动控制箱（DDC）的控制系统部分，本文推荐使用圣邦微电子的微处理器监控电路SGM706B-SXS8G/TR，带硬件看门狗功能，另外还带手动复位功能，系统软件卡死后，可以强制复位，保证系统稳定性。
应用方案 发布时间 : 2021-03-03
【产品】36V带看门狗定时器的系统电源电压检测器R5110S，电压调节器允许输出电流为500mA
Nisshinbo (日清纺)推出的R5110S是基于高压CMOS工艺技术的系统供给电源监控IC，具有高精度和超低电源电流电压。R5110S由一个芯片中的稳压器（VR），电压检测器（VD）和普通/窗口类型的看门狗定时器（WDT）组成，具有提供系统电源，电源电压监控器和监督系统的误操作三种功能。
产品 发布时间 : 2023-12-06
【应用】国产看门狗芯片SGM706-MYS8G/TR用于可视智能终端，外围电路简单使用方便
笔者设计的一款智能室内终端，为了提高系统的稳定性，在系统出现异常时能够自主恢复，需要增加外部看门狗电路。经过对比选型，最终选用圣邦微电子的看门狗芯片SGM706-MYS8G/TR，功能强大、外围电路简单、使用方便可靠等特点，可有效提高系统的可靠性和抗干扰能力。
应用方案 发布时间 : 2020-11-08
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可烧录IC封装SOP/MSOP/SSOP/TSOP/TSSOP/PLCC/QFP/QFN/MLP/MLF/BGA/CSP/SOT/DFN；IC包装Tray/Tube/Tape；IC厂商不限，交期1-3天。支持IC测试（FT/SLT），管装、托盘装、卷带装包装转换，IC打印标记加工。
最小起订量： 1pcs 提交需求>
可根据用户的MOSFET管进行参数检测出具报告，静态参数最大电压:7500V、检测最大电流6000A；动态参数最大电压:3300V、检测最大电流:4500A。该测试标准满足GB、IEC及行业标准等，具备可靠性评估及老化实验能力。
实验室地址： 西安 提交需求>
授权代理品牌：集成电路
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授权代理品牌：接插件及结构件
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授权代理品牌：电源及模块
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授权代理品牌：电工工具及材料
授权代理品牌：机械电子元件
授权代理品牌：加工与定制
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