【应用】基于超小型包覆成型干簧管59170和宽电压比较器LM339的液位检测方案，用于多种液体液位连续检测

时间： 2020-06-16 来源：世强

用于液位检测的方法有很多种，如机械浮球式、超声波、电容型传感器、干簧管型等等，各种检测方法也各有优缺点，如纯机械浮球式检测：结构体积较大，但是比较可靠，技术比较落后；超声波传感器检测：检测精度较高，但是对于未知液体或者会产生泡沫的液体会有较大的检测偏差；电容传感器检测：检测精度较高，对于未知液体会有较大的检测偏差，检测数据后续处理较为复杂；干簧管式检测：常用来做定点液位检测，较为可靠；其它的液位检测不再做进一步的说明，本文介绍一种使用干簧管及电压比较器设计的用于多种液体液位连续检测的液位检测方案。

本设计中采用常规的干簧管方案的液位检测方案，即常规的“非磁性材料套管+带磁性浮球+干簧管/磁簧管”三部分的构成方式（如下图1），非磁性套管的内径一般在5~12mm之间，本设计采用的是8mm内直径的套管，在本设计中需要将多组干簧管以及电路对应的电阻内置到非磁性套管内，因此贴片小体积的干簧管就成为方案首选，综合各种干簧管的尺寸参数，本设计中选用LITTELFUSE的59170系列的超小型包覆成型磁簧管作为传感器的核心部件（59170-1-S-00-D型，见下图2），该型磁簧管尺寸为11.43mm x 2.29mm x 2.29mm (0.450" x 0.090" x 0.090")，有直线形和鸥翼状引线供选择，具有以下的功能特点：

功能与特色:

· 两个部件组成的磁力驱动距离传感器

· 有鸥翼状和直线形引线供选择

· 提供方便清洗电路板的模制支座

· 客户可自定灵敏度

· 适用于回流焊接

· 适合在高湿度的受污染环境中使用

· 在微控制器电压和电流逻辑电平负载下，簧片触点的工作周期可达数百万次

· 适合拾放式装配

图1 常规的干簧管浮球式传感器实物图2 59170型贴片磁簧管实物

本方案采用多个干簧管连续排布的方式来实现对浮球位置的连续采集，从而实现液位的连续采集，采用59170超小型包覆成型干簧管，配合多路电压比较器实现传感器液位的连续采集；本方案设计的原理框图如下图3所示：

图3 液位采集显示设备原理框图

如下图4所示，采用多组59170超小型包覆成型干簧管来实现多点位的液位位置判断，本设计中需要显示出0、12.5%、25%、37.5%、50%、67.5%、75%、87.5%、100%共计9个档位的液位信号，因此传感器需要按照预制对应的9个单位里输出液位检测信号，这里采用不同点位标定信号与不同的电压值输出对应的方式完成传感器检测信号输出，简单来说就是采用多电阻分压的方式，不同点位的干簧管闭合/断开实现传感器中不同电阻值得接入，从而在输出接口上实现不同点位对应不同电压值的输出，传感器电路原理如下图2所示，传感器采用这种方式仅需三根线即可实现信号检测及输出（接口信号定义为VCC、GND、OUT，其中VCC和GND是电路的供电电源，OUT为传感器的输出信号，输出信号可视为间断性的模拟电压输出），同时电路也最为简单可靠。

图4 多点位检测传感器原理图

至此，传感器已经实现不同点位的信号检测及输出，接下来就需要液位显示板上将对应的液位信号显示出来，传感器输出9个档位的模拟电压信号，对于这种类型信号处理，可以采用单片机ADC转换的方式（需要与之对应的应用程序），也可以采用纯硬件电路的方式（直接硬件电路实现功能），本设计中只需将传感器输出的9个档位信号与对应的LED显示灯进行一一对应以实现液位信号的显示，因此在本设计中直接采用多路比较器电路的方式完成传感器信号与液位显示之间的转换对应，设计电路如下图5所示，采用三片ROHM的LM339F型接地检测比较器完成传感器的9个液位档位显示对应，LM339F型芯片含4个电路的接地检测比较器，工作电源电压范围较大（3V～32V，可以使得液位显示面板适应更宽的供电电压范围），且消耗电流较小，电路中在每路比较器的反相输入端通过不同电阻构成串联分压电路之后用于传感器输入档位电压信号的参考比较点电压，在比较器的输出端对应的连接上拉电阻，然后将输出信号给到用于液位显示的LED驱动电路中，为便于电路布线及减少元器件数量，这里采用2片7路输出的ULN2003型达林顿管完成LED驱动，因用于显示的LED的尺寸较大，对应的电流也较大，常规的串联电阻对LED进行限流保护的方案会因电阻发热量较大而变得不适用，因此这里采用安森美的NSI45030A型恒流二极管设计电路实现液位显示LED的恒流供电，这种方案既能解决串联电阻发热的问题，也能解决不同的电压下LED的供电电流不同导致发光亮度不一致的问题，同时该系列恒流二极管还提供多种不同的电流恒流限制参数（其它型号诸如NSI50010YT1G等），非常便于液位显示面板采用不同显示颜色的LED的供电电流限制。

图5 液位显示面板电路原理图

图6 液位显示面板电路板图

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全部评论（2）

智能硬件 Lv5. 技术专家 2021-11-04

很好的方案，收藏使用
ACE Lv8. 研究员 2020-06-16

学习了

没有更多评论了

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(C),BD30GA3MEFJ-LB,RBR5L30B,RBR5L30A,RSX501LAM20,BU2506FV,RB228T150,RCX300N20,KD2003-F0FW00A,BH76363FV,BU91797MUF-M,RQ1E075XN,TFZV,RD3L01BAT,BD25GA5MEFJ-LB,LA-401VD/VN,BD37034FV-M,BD8311NUV,BD63251MUV,RF4G060AT,BD83A04EFV-M,BU18SA4WGWL,VS12VUA1VWM,RQ3E100AT,SMF5V0,BD3539FVM,BV1LC085EFJ-C,RQ3E100BN,BU2394KN,SML-A12MT (J),BAXXBC0,KR2002-D06B71A,DTA123JUB,ML86V76580,RD3S100CN,DTC114YEB,2SAR372P,RQ5E020SP,SCS215KG,BD63573NUV,DTA015TEB,BA90BC0,RTR020P02,DTA123JU3,DTC114YE3,RB058LAM-40,SML813BNT,BH1730FVC,DAN222WM,BD68888MUV,DTB114GK,BM2P241W-Z,PML100,BU34DV7NUX,DTC143TKA,RGTV60TK65D,RSX201L-30,SCS220AJ,BD9104FVM,SCS220AG,BD50GC0MEFJ-LB,DTA124EKAT146,BD5469GUL,R6511ENX,2SAR375P,SMLK18WBNCW,R6511ENJ,CSL0901UT (C),DTA014YUB,RB058LAM-30,CSL0903DT,RX3L07BBG,SCT4036KE,RUQ050N02,BD4XXM2FP3-C,QS8J2,RF305BM6S,RLD94SEQP,BD2812GU,SML-011VT 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型号- BD7673AG,SMLEN3BC8T,BA4560RFVM,RBQ20NS65A,RFN20NS6S,BM2LB300FJ-C,BA4560RFVT,RASMID,BD7602GUL,RFUH20NS3S,BD82001FVJ-LB,SMF26V,MD56V72161C-XXTAP,RB058LAM150,SDR,BD50FA1MG-M,BD9109FVM-LB,RB088LAM-60,RB238NS150,SML-D12Y8W,BR25H128,SML-P11DT,VS17VUA1LAM,GMR50/5025,RFUH20NS4S,RGTH40TK65,STM 431J,SCT2280KE,BA82904YFVM-C,CSL1301R2T,ECO 200,BA2902YF-LB,BA4560YFV-M,RB298T100,BD46EXX1G-M,SMF24V,BU7250G,SML-D12U1W,BD71L4LG-1,BR25H160,SFR,BR25A512,RGCL80TK60,RGPR20BM36HR,BD12732FVM,BD12732FVJ,PTM 330,BU7251SG,BA2901YFV-M,BU21181FS,BU7251G,BD87A34FVM,BU7462FVM,BD12732FVT,BD52XXG-2C,LM2903F,RBR30NS30A,BU7291G,MD56V62161M-XXTAL42X,GSSSMR320,LM339F,MD56V72161C-XXTAL42X,BA2901YFV-C,BR93AXX-WM,BA2902SF,SMF22V,SML-D12Y3W,ML610400,BD2066FJ-LB,SCT2160KE,BAXXDD0T,SCM-013RT,LM2904F,BAXXDD0W,BU9829GUL-W,PTM 210J,SML-H12V8T,RFN20NS4S,RFVS8TG6S,ML630Q464,BU7262NUX,SMLD12EN1W,ML630Q466,LMR342FJ,TLR342FJ,RF501BM2S,MMBZ16VAL,UCR006,SMF20V,SML-D13MW,BU7294SFV,BU7294F,RB168LAM150,RB238NS-30,LMR342FV,RFN6T2D,BD7220FV-LA,BD9E303EFJ-LB,LMR982FVM,SCS215AJ,RFN20NS3S,BV1LB300FJ-C,SCS215AM,BUXXSD2MG-M,SCS215AG,BR25A1M,SML-S13RT,BD37210AMUV,BD4271HFP-C,SCS215AE,BD45XX1G,BD52XXG-2M,RBR2LAM30A,BA4560F,BM2P0161,PTM 430J,RB238NS-40,RBR5L30B,RBR5L30A,RSX501LAM20,RBR2MM30B,BU7486SFV,RB228T150,RBR2MM30A,BM1050AF,LMR934FJ,BU7252SFVM,VS9V0UA1LAM,RBQ15BM100A,BU7486SF,BDXXIA5WEFJ,BU7233SF,PV4220,BA2902FV,LMR934FV,SMF5V0,BU9897GUL-W,BD3539FVM,SML-D12U8W,LMR824F,RGPR50NS45HR,BAXXBC0,KX220,LM2903FJ,LM339FV,BU4223G,RBS3MM40B,SML-P11MT,RBR10BM30A,RBS3MM40A,SCS215KG,BD45EXX2G-M,SML-P15UT,SMR,RB058LAM-40,BA3404FVM,LM2903FV,BU7244YFV-C,BU7442FVM,MMBZ12VAL,BA82902YFJ-C,SCS220AM,SML-H12M8T,PML100,RGTV60TK65D,RSX201L-30,BD42530EFJ-C,SCS220AJ,LBP-602DK2,SCS220AE,BU7464SF,SCS220AG,SML-D12D8W,TLR344F,RB058LAM-30,RF305BM6S,LMR822F,BD14000EFV-EVK-001,RFUH30TS6D,RBQ10NS100A,RBR3LAM60B,RBR3LAM60A,BD7F100HFN-LB,PV4210,BD48XXFVE,BA2903SFVM,BD7XXL2FP3-C,LMR821G,BM2P051F,ML610Q400,BD3508MUV,BU46KXX2G,RB238NS100,BU7486FVM,ML630Q400,SML-D12D1W,BD1HC500FVM-C,BU7242SF,LM4559F,BD42500G-C,TLR342F,RB228T100,RB168LAM-30,ML610Q411PA,RFUH25TB3S,BM2P052F,LM324FVJ,MMBZ24VAL,RGS00TS65EHR,ML62Q1366,ML62Q1367,BQ10BM100A,VS22VUA1LAM,ML62Q1365,BD37A41FVM,BA4580RFJ,BD87A29FVM,BD42540FJ-C,RGT8TM65D,RFNL5TJ6S,BU7462SNUX,VS28VUA1LAM,BM63763S-VC,RB168LAM-40,BM63763S-VA,BA4560FJ,BM2P053F,SML-D13FW,BU46KXX4G,ML62Q1335,ML62Q1333,ML62Q1334,BU7264SF,BM63563S-VC,RFNL20TJ6S,BRCG016GWZ-3,RBR3L30B,BM63563S-VA,RBR3L30A,LBP-602MA2,BA3259HFP,BD00FA1WEFJ,LM339FJ,RBQ30NS45B,BM2P054F,BD7691FJ,RBQ30NS45A,ML610482P,SCS308AHG,ML62Q1346,ML62Q1347,TLR341G,ML62Q1345,BRCB008GWZ-3,BA2115FVM,BD48LXXG,BU1S12S1AG-LB,RBR40NS60A,SCT3105KL,MR45V064B,RB058LAM-60,RFUH20NS6S,RB168LAM-60,SML-D13DW,LMR324FJ,RESD1CAN,ML62Q1432,ML62Q1430,BD35395FJ-M,ML62Q1431,SCS308AJ,BU7421SG,SCS308AM,BHXXRB1WGUT,BA4558RFV,BA4558RFJ,LMR324FV,BM6101FV-C,MMBZ20VAL,RBS1LAM40A,BD7690FJ,BD7684FJ-LB,MD60Y1G160A-XXLAP7AL,RFN10BM6S,BU97931FV-LB,ML62Q1441,ML62Q1442,SCT3060AL,VS11VUA1LAM,RGTH60TS65D,ML62Q1440,RBQ10NS45A,SML-E12DW,BA4510FVM,RFN10T2D,SCS312AHG,RB088T-60,SML-D14DW,RB168L100,RGW80TS65,BD1HC500HFN-C,BD95601MUV-LB,RF2001NS3D,BU21077MUV,BA3474RFV,BM1P067FJ,BD71L3SHFV,BU6652NUX,RF2001NS2D,LM2904FVJ,RGS80TSX2DHR,SML-D12P8W,ML610Q360,RB088BM150,LM2904FVM,RB088LAM100,SCS210KG,RGPZ10BM40FH,ML610Q422P,BM2P091F,BUXXSA5WGWZ,RB088T-40,LM2904FVT,BD37A19FVM,SML-D15U2W,RFNL15TJ6S,SCT2450KE,LM4559FVM,RSX201LAM30,BD7562SFVM,LM4559FVJ,LMR341G,BA33D15HFP,BM60056FV-C,LM4559FVT,RB088T-30,BM2P092F,RB160LAM-90,BA2904YFM-M,RB168MM-60,RF1001T2D,ML62Q1225A,BV1LC105FJ-C,ML62Q1225E,BA2902YF-C,RB168L150,BU7266SFV,BD9G341AEFJ-LB,BR25G640,BA2902YF-M,BM2P093F,RBR1L30A,RF301BM2S,RGS50TSX2DHR,LMR342F,RFNL5BGE6S,RGTV00TS65D,BD47XXG,RBR15BM30A,RB168MM-30,LM393FVT,BU42XXF,ML62Q1224A,SCS208AGHR,BD48E23G-M,BU42XXG,LM393FVM,RGPR30BM40HR,BR25HXXX-2C,CSL1001YT,BD7562FVM,ML62Q1224E,MSM56V16160NP,BD99A41F,BU7262FVM,LBP-602VK2,LM393FVJ,BA4558YF-M,BM2P094F,MD56V62161M-XXTAP,RGTH40TS65D,BD49KXXG,PV2105,BDXXHC0WEFJ,BD6538G-LB,RB168MM-40,ML62Q1223A,BAXXCC0,SMLEN3WBC8W,ML62Q1223E,LM4559FV,LM4559FJ,RBR10BM40A,BDXXHA5MEFJ-M,BA3474YFV-C,BU7232SFVM,BD7561SG,SMLP13WBC9W,BA4560YFVM-M,BM2P095F,BU7421G,RBR1MM40A,LMR822FVJ,BDXXGA5MEFJ-LB,SCS206AJ,LMR822FVM,LBP-602MK2,RB078BM30S,BA8391G,SCS206AG,BU45LXX2G,SCS304AM,BD45XX2G,SCT2H12NY,SCT2H12NZ,BD48EXXG,LMR822FVT,RB088LAM150,BD4XXM5W,BU7462F,BU7244F,BU7465HFV,SML-P15DT,MD56V82161A-XXTALQ2X,BU7487FV,SCT2080KE,RB168LAM100,SCS215AJHR,RB238NS-60,RBR5LAM30A,BD4XXM2W,LM2901F,RBS3LAM40B,MMBZ9V1AL,RBR20BM60A,RBS3LAM40C,BU45LXX4G,RBS3LAM40A,RGW00TK65D,RB088T150,BU7464F,SML-D12Y1W,BD45XX5G,MD56V82161A-XXTAP,RBQ15BM45A,SCS304AHG,LM2902F,RGT40NS65D,ML62Q1267A,RBQ30T65A,RBS1MM40A,ML62Q1267E,BU49XXG,BU49XXF,BU5255SHFV,BHXXPB1WHFV,SCS304AJ,RBR30T40A,RBR5LAM30B,SCS206AM,LMR344F,BD49EXXG-M,SCS215KGHR,SML-D13WW,ML62Q1266A,RB168MM150,MD60Y1G160A-XXLALQ3L,ML62Q1266E,BS2130F-G,BD3551HFN,BR25G256,BA2903YFV-M,SCS230KE2,RBR2VWM40A,BD4723G,RBR1VWM60A,BA12004DF-Z,BU7242NUX,BU43XXFVE,M

2019年03月 - ROHM - 选型指南 - Ver.2.0 代理服务技术支持采购服务

Littelfuse磁簧开关选择指南为电子应用选择磁簧开关的快速参考指南

描述- 本指南为选择合适继电器开关提供了快速参考。涵盖了多种型号的继电器开关，包括MITI-7系列、MATE-12B、MDSR-10、MDSR-7、FLEX-14、MDCG-4、MACD-14等，并介绍了它们的特点和应用场景。此外，还提到了市场应用领域，如家用电器、安全与监控设备等，并提供定制化服务和技术支持。 **主要内容包括：** - 继电器开关的类型及其特点； - 不同型号的应用场景； - 市场应用领域； - 定制化服务和技术支持。

型号- MACD-14,MASM-14,MDSM-4R,MASM-14B,MDSM-10,HA15-2,MLSM-4B,59166,59045,59165,DRS-DTH,MDSR-7 SERIES,MATE-12B,MDSM-4,MDSM-DT,MDSM-4B,MASM-14R,MDSR-10,MLSM-4R,59045-1,MVSR-20,MLSM-4,MRPR-20,MDCG-4,59050-1,MDSM-10R,MITI-7L,59170,MLSM-3,MLSM-3B,59050-2,MITI-7,MDSR-7,FLEX-14,MISM-7,MDSM-10B,MDRR-DT,MLSM-3R,MLRR-4,MLRR-3

05/24/24 - LITTELFUSE - 选型指南代理服务技术支持采购服务

【选型】ROHM（罗姆）通用IC选型指南（中文）

目录- 串行 EEPROM 运算放大器&比较器电压检测器线性稳压器开关稳压器电源管理开关智能功率器件 AD/DA转换器电压参考IC 车载用标准逻辑IC/晶体管阵列/计时器IC 封装一览

型号- BM2LB300FJ-C,BD9B304,BD9B305,BD63536,BR25HXXX-2AC,BD9B300,BD9B301,BR25H16NUX-5AC,BU46LXX2G,BR24H256FVT-5AC,BR24H08F-5AC,BR25H1MFJ-5AC,BR25H512FJ-5AC,BR24G32NUX-3,BU5265SHFV,BD50FA1MG-M,BR24G32NUX-5,BV1LC150,BR25G256FJ-3,BD48EXXG-M,BR25H256F-5AC,BR24H64FVM-5AC,BR25H020FVM-2C,BD9V101,BD9C301FJ,BD9V100,BU34DV7,BDXXGA5MEFJ-M,BR25G128FVT-3,BR25A512F-3M,BD9P135MUF-C,BU46LXX4G,BD46EXX1G-M,BV1LB028,BD226XXG-M,BD46XX1G,BU7250G,BD71L4LG-1,BR24G64FVM-5,BR24G64FVM-3,BA4580R,BR24H08FVT-5AC,BD8158FVM,BU7251SG,BD9C401,BV1LB045,BR93G46F-3A,BR93G46F-3B,BD50C0A,BD750L2,BU7251G,BR93H56RF-2C,BR25H32FVT-5AC,BD87A34FVM,BR24H04FVM-5AC,BD52XXG-2C,BU7291G,BAXXBC0(W),BD9A100MUV,BD9B500,BR24HXXX-5AC,BR93G46FVM-3,BU48XXG,BR25A256FVT-3M,BUS1DJC0GWZ,BA2902YXXX-M,BR93AXX-WM,BR24A08FJ-WM,BD49EXXG,BD95602MUV,BR25G320FVM-3,LMR1801HFV-LB,BR24G32FVM-5,BV1HB045EFJ-C,BR93G66FVT-3A,BR93G66FVT-3B,BR24G1MF-3A,BAXXCC0(W),BU9829GUL-W,BD9A400,BA4584YFV-M,BD9E302EFJ,BR24G02F-3A,BD22621G-M,BD46XX2G,BR24G32FVM-3,BR25H02FJ-5AC,BU5265HFV,BR24G01FVT-3,BD2201GUL,BR25A1MF-3M,BR24H2MFJ-5AC,BD6529GUL,BR93A66RF-WM,BD750L5FP-C,BD82039FVJ,BD9D322QWZ,BR93HXX-WC,BR25H2MF-5AC,BD46XX5G,BD70522GUL,BD9S200MUF-C,BR93G56NUX-3,BD9E151NUX,BR24G128F-3,LMR982FVM,BD52XXG,BD9D320EFJ,BD9E303EFJ-LB,BH2226FV,BA4560R,BV1LB300FJ-C,BUXXSD2MG-M,BR24G128F-5,BA2902YXXX-C,BA4560YXXX-M,BV1LB085,BD4271HFP-C,BD9C601,BA4584R,BD45XX1G,BU7294S,BR24G08FVT-3,BD90640EFJ-C,BD52XXG-2M,BDXXIC0MEFJ-M,BR24G02FJ-3A,BU7271G,BU2506FV,BD9D323,BD1HD500HFN-C,BR93H66RFVT-2C,BD9D322,BD7LS08G-C,BD9D321,BD9D320,BR24A64F-WM,BR93G46FVM-3B,BR93G46FVM-3A,BR25H1MFVT-5AC,BD9F500,BV1LC300,BD8311NUV,BU7233SF,BHXXSA3,BR25H640FVM-2AC,BR24A02FJ-WM,BR93G46NUX-3A,BU9897GUL-W,LMR931G,BR25G320F-3,BR93G46NUX-3B,BM2LB110,BV1LC085EFJ-C,BR24G01F-3A,BD9B301MUV-LB,BAXXBC0,BD7562,BR24G01FVM-3A,BA9741F,BR93A56RFVT-WM,BD45EXX2G-M,BR24G08FJ-3,BD82040FVJ,BR24G64NUX-5,BR24G64NUX-3,BD9B100MUV,BR24H128F-5AC,BR93G56FVT-3,BU7244YFV-C,BR93G76FJ-3,BU34DV7NUX,BR24TXX-3AM,BU7464SF,BA1117,BD33C0AW,BU7232YFVM-C,BUXXJA2,BR93G46F-3,BR24G16NUX-3,BV2HC045EFU-C,BD2222G*,BU7275SHFV,BU33DV7NUX,BR25G320NUX-3,BD90302,BA9743A,BD9S000NUX-C,BR24G16FVT-3,BD7542,BR24G16FJ-3,BD4271,BR93A86RFVM-WM,TLR344,BD4269,BR24H128FVM-5AC,BD9P233MUF-C,BR25H160FVM-2C,BU1S12S1BG-LB,BD49LXXG,TLR342,BD8317GWL,BD9035AEFV-C,LMR821G,BD95602MUV-LB,BD9P255EFV-C,BU46KXX2G,BD9B100,BR25H020FJ-2C,BR25H02FVT-5AC,BR24G512FJ-3A,LM2904,BD1HC500FVM-C,BV1LB010,LM2901,LM2902,BA4584FV,LM2903,BR24H16F-5AC,BU7231SG,BA9743AFV,BD9C401EFJ,BR93G66FVT-3,BR25H010FVT-2C,BU9889GUL-W,BD22641G-M,BD9B600MUV,BU7205SHFV,BD2242G*,BR24G128NUX-5,BR24G512FVT-3A,BD3021HFP,BR24G128NUX-3,BD9611MUV,BU7205HFV,BD37A41FVM,BD87A29FVM,BD9B333,BD3570Y,BR25H256NUX-5AC,BV1LC105,BA178MXX,BM2LB300,BR24G04FVT-3A,BD9D300,BU46KXX4G,BV1LB010FPJ-C,BD9555FVM-C,BR24G512FJ-5A,BRCG016GWZ-3,BR93A56RFJ-WM,BD1LB500,BR24G08NUX-3,BR93H76RFVT-2C,BUXXSD5W,TLR341G,BRCB008GWZ-3,BR24G512FVT-5A,BD48LXXG,BU7253SF,BR24T512F-3AM,BR25H320FVM-2C,BR93H76RFJ-2C,LMR822,BR24G1MFJ-3A,BR25H128FJ-5AC,BR24H02FVT-5AC,BR24G01NUX-3A,LMR824,BR25G640FVT-3,BD12730G,BD82042FVJ,BR93G76FVM-3A,BD9152MUV,BR93G76FVM-3B,BA14741,BD80C0A,BR25G128FVM-3,BU7421SG,BR25H128F-5AC,BA2901YXXX-C,BD2266G-M,BD9S400,BD9P135,BR24G01NUX-3,BR25H16FJ-5AC,BDXXKA5(W),BD7541SG,BV1HB045,BD9S100NUX-C,BR24H512FJ-5AC,BR25G512F-3,BR93A76RFVM-WM,BDXXIA5,BM2LB110FJ-C,BR25H64FVT-5AC,BR24G1MFJ-5A,BR24G04FVM-3A,BR25H080FVM-2C,BR24G08FVM-3,BD12734,BU45KXX4G,BD12732,BD9E100FJ-LB,BDXXHA3MEFJ-M,BD1HC500HFN-C,BR25H640FJ-2AC,BD87A28FVM,BV1LC150EFJ-C,BA3474RFV,BR24H32FJ-5AC,BR93A46RFJ-WM,BR93H66RF-2C,BD9P155,BR25H08FJ-5AC,BV2HC045EFU－C,BD71L3SHFV,BDXXHA3MEFJ-C,BD90302NUF-C,BU9832GUL-W,BD6528HFV,BR24G04FVM-3,BDXXIC0,BR25H320F-2C,BD9G401EFJ-M,BR93GXX-3,BD00D0A,BA82904YXXX-C,BD9E104FJ,BR93A66RFVT-WM,BD9E151,BD33C0A,BU45KXX2G,BD37A19FVM,BR24G08FVT-3A,BD90C0A,BR93H46RF-2C,BU7475SHFV,BD99011,BD9150,BD9151,BD99010,BR25H32NUX-5AC,LMR341G,BA9744,BA9741,BRF0520A,BU9891GUL-W,BD2233G,BD9A101MUV-LB,BR25G256FVT-3,BR25H080FJ-2C,BDXXGA3,BD90C0AW,BU7442S,BUXXTA2W,BR24G04NUX-3,BR24H04NUX-5AC,BR25A256F-M,BV1LC105FJ-C,BAXXJC5(W),BR93G46FVT-3A,BR93G46FVT-3B,BDXXGA5,BR93G86NUX-3,BD9A302QWZ,BV2HX045EFU-C,BD9A300MUV,BD82044FVJ,BUXXJA2DG-C,BD9G341AEFJ-LB,BD2232G,BDXXLA5MEFJ-M,BR25H08FVM-5AC,BD47XXG,BA2107G,BR25A512FVT-3M,BR25H160FVT-2C,BA2903YXXX-C,BR24H32FVM-5AC,BR25HXXX-2C,BR25H02NUX-5AC,BU7444F,BD99A41F,BR25H1MF-5AC,BM2LC105,BD7LS97G-C,BR25H020F-2C,BD2264G-M,BU7495HFV,BD49KXXG,BR93G66F-3A,BR93G66F-3B,BD8306MUV,BV1LB085FJ-C,BR24G128FVM-5,BR24G128FVM-3,BDXXGC0,BA2901YXXX-M,BAXXCC0,BD9E100,BD9E101,BU33UV7NUX,BD9E104,BD9P105,BR93H56RFVM-2C,BDXXHA5MEFJ-M,BR24G02FVM-3A,BA3474YFV-C,BD7561SG,BR93G66NUX-3,BR25G320FJ-3,BR25H32FJ-5AC,BA4564WFV,BU7421G,BR93G46NUX-3,BA3474F,BA8391G,BR24A16FJ-WM,BU45LXX2G,BD95830MUV,BD45XX2G,BD48EXXG,BR93G66NUX-3A,BR93G56FJ-3,BD9PXX5EFV,BRXXXXXX-5,BD9S012NUX-C,BR25H640F-2AC,BD9S000,BR93G86NUX-3A,LMR321G,BU7244F,BA2904YXXX-C,BR93G66NUX-3B,BR93G86NUX-3B,BR24H16FJ-5AC,BU7244S,BD9P205EFV-C,BU7462S,BU7486S,BH2227FV,

2019年11月 - ROHM - 选型指南 - Ver.4.0 代理服务技术支持采购服务

ROHM（罗姆）通用IC选型指南（英文）

目录- Best Selection of Genera-purpose Ics Serial EEPROMs Operational Amplifiers/Comparators Voltage Detectors (Reset ICs) Linear Regulators Switching Regulators Power Management Switch ICs IPD (Intelligent Power Device) AD/DA Converters Voltage Reference ICs Automotive Standard Logic ICs Package List

型号- BM2LB300FJ-C,BD9B304,BD9B305,BD63536,BR25HXXX-2AC,BD9B300,BD9B301,BD9PXX5EFV-C,BR25H16NUX-5AC,BU46LXX2G,BR24H256FVT-5AC,BR24H08F-5AC,BR25H1MFJ-5AC,BR25H512FJ-5AC,BR24G32NUX-3,BU5265SHFV,BD50FA1MG-M,BR24G32NUX-5,BV1LC150,BR25G256FJ-3,BD48EXXG-M,BR24AXX-WM SERIES,BR24H64FVM-5AC,BR25H020FVM-2C,BD9V101,BD9C301FJ,BU34DV7,BDXXGA5MEFJ-M,BR25G128FVT-3,BD46EXX1G-M SERIES,BR25A512F-3M,BD9P135MUF-C,BU46LXX4G,BD46EXX1G-M,BV1LB028,BD226XXG-M,BD46XX1G,BU7250G,BD71L4LG-1,BR24G64FVM-5,BR24G64FVM-3,BA4580R,BR24H08FVT-5AC,BD8158FVM,BU7251SG,BD9C401,BV1LB045,BR93G46F-3A,BR93G46F-3B,BD50C0A,BD750L2,BU7251G,BD53XXG-2M SERIES,BR93H56RF-2C,BR25H32FVT-5AC,BD87A34FVM,BR24H04FVM-5AC,BD52XXG-2C,BR24GXXX-3A SERIES,BU7291G,BD47XXG SERIES,BAXXBC0(W),BD9A100MUV,BD9B500,BR24HXXX-5AC,BR93G46FVM-3,BU48XXG,BR25A256FVT-3M,BUS1DJC0GWZ,BA2902YXXX-M,BR93AXX-WM,BR24A08FJ-WM,BD49EXXG,BD95602MUV,BR25G320FVM-3,LMR1801HFV-LB,BR24G32FVM-5,BV1HB045EFJ-C,BR93G66FVT-3A,BR93G66FVT-3B,BR24G1MF-3A,BAXXCC0(W),BU9829GUL-W,BD9A400,BA4584YFV-M,BD9E302EFJ,BR24G02F-3A,BD22621G-M,BD46XX2G,BR24G32FVM-3,BR25H02FJ-5AC,BU5265HFV,BR24G01FVT-3,BD2201GUL,BR25A1MF-3M,BR24H2MFJ-5AC,BD6529GUL,BR93A66RF-WM,BD750L5FP-C,BD82039FVJ,BD9D322QWZ,BD52XXG-1 SERIES,BD45EXX1G-M SERIES,BR93HXX-WC,BD46XX5G,BD70522GUL,BD9S200MUF-C,BR93G56NUX-3,BD9E151NUX,BR24G128F-3,LMR982FVM,BD9E303EFJ-LB,BD9D320EFJ,BH2226FV,BA4560R,BV1LB300FJ-C,BUXXSD2MG-M,BR24G128F-5,BD52XXG-2M SERIES,BA4560YXXX-M,BV1LB085,BD4271HFP-C,BD9C601,BA4584R,BD45XX1G,BU7294S,BR24G08FVT-3,BD90640EFJ-C,BD52XXG-2M,BDXXIC0MEFJ-M,BR24G02FJ-3A,BU7271G,BU2506FV,BD9D323,BD1HD500HFN-C,BR93H66RFVT-2C,BD9D322,BD7LS08G-C,BD9D321,BD9D320,BR24A64F-WM,BR93G46FVM-3B,BR93G46FVM-3A,BR25H1MFVT-5AC,BD9F500,BV1LC300,BD8311NUV,BU7233SF,BHXXSA3,BR25H640FVM-2AC,BR93G46NUX-3A,BU9897GUL-W,LMR931G,BR24A02FJ-WM,BR25G320F-3,BR93G46NUX-3B,BM2LB110,BV1LC085EFJ-C,BR24G01F-3A,BD9B301MUV-LB,BAXXBC0,BD7562,BR24G01FVM-3A,BA9741F,BD9PXX5MUF-C,BR93A56RFVT-WM,BD45EXX2G-M,BR24G08FJ-3,BD82040FVJ,BR24G64NUX-5,BR24G64NUX-3,BD9B100MUV,BR24H128F-5AC,BR93G56FVT-3,BU7244YFV-C,BD52XXG-2C SERIES,BR93G76FJ-3,BU34DV7NUX,BR24TXX-3AM,BU7464SF,BA1117,BD33C0AW,BU7232YFVM-C,BUXXJA2,BR93G46F-3,BR24G16NUX-3,BV2HC045EFU-C,BU7275SHFV,BU33DV7NUX,BU46KXX2G SERIES,BR25G320NUX-3,BD90302,BA9743A,BD9S000NUX-C,BR24G16FVT-3,BD7542,BR24G16FJ-3,BD4271,BR93A86RFVM-WM,TLR344,BD4269,BR24H128FVM-5AC,BD9P233MUF-C,BR25H160FVM-2C,BU1S12S1BG-LB,BD49LXXG,TLR342,BD8317GWL,BD9035AEFV-C,LMR821G,BD95602MUV-LB,BD9P255EFV-C,BU46KXX2G,BD9B100,BR25H020FJ-2C,BR25H02FVT-5AC,BR24G512FJ-3A,LM2904,BD1HC500FVM-C,BV1LB010,LM2901,LM2902,BA4584FV,LM2903,BR24H16F-5AC,BU7231SG,BA9743AFV,BD9C401EFJ,BR93G66FVT-3,BR25H010FVT-2C,BU9889GUL-W,BD22641G-M,BD9B600MUV,BU7205SHFV,BR24G512FVT-3A,BR24G128NUX-5,BD3021HFP,BR24G128NUX-3,BD9611MUV,BU7205HFV,BD37A41FVM,BD87A29FVM,BD9B333,BHXXRB1WGUT,BD3570Y,BV1LC105,BR25H256NUX-5AC,BA178MXX,BM2LB300,BR24G04FVT-3A,BD9D300,BU46KXX4G,BD9555FVM-C,BV1LB010FPJ-C,BD49EXXG SERIES,BD53XXG-1 SERIES,BD45EXX5G-M SERIES,BR24G512FJ-5A,BRCG016GWZ-3,BR93A56RFJ-WM,BD1LB500,BR24G08NUX-3,BR24HXXX-5AC SERIES,BD46EXX5G-M SERIES,BR93H76RFVT-2C,BUXXSD5W,TLR341G,BRCB008GWZ-3,BR24G512FVT-5A,BD48LXXG,BU7253SF,BR25H320FVM-2C,BR24T512F-3AM,BR93H76RFJ-2C,LMR822,BR24G1MFJ-3A,BR25H128FJ-5AC,BR24H02FVT-5AC,BR24G01NUX-3A,LMR824,BR25G640FVT-3,BD12730G,BD82042FVJ,BR93G76FVM-3A,BD9152MUV,BR93G76FVM-3B,BA14741,BR93GXX-3 SERIES,BD820XXFVJ SERIES,BD80C0A,BR25G128FVM-3,BU7421SG,BD46XX2G SERIES,BD2266G-M,BD9S400,BD9P135,BR24G01NUX-3,BR25H16FJ-5AC,BDXXKA5(W),BD7541SG,BV1HB045,BD9S100NUX-C,BR24H512FJ-5AC,BR25G512F-3,BR93A76RFVM-WM,BDXXIA5,BM2LB110FJ-C,BR25H64FVT-5AC,BR24G1MFJ-5A,BR25H080FVM-2C,BR24G04FVM-3A,BD48EXXG SERIES,BR24G08FVM-3,BD12734,BU45KXX4G,BD12732,BD9E100FJ-LB,BDXXHA3MEFJ-M,BD1HC500HFN-C,BR25H640FJ-2AC,BD87A28FVM,BV1LC150EFJ-C,BA3474RFV,BR24H32FJ-5AC,BR93H66RF-2C,BR93A46RFJ-WM,BD9P155,BR25H08FJ-5AC,BD71L3SHFV,BDXXHA3MEFJ-C,BD90302NUF-C,BU9832GUL-W,BD6528HFV,BR24G04FVM-3,BDXXIC0,BR25H320F-2C,BD9G401EFJ-M,BR93GXX-3,BD00D0A,BA82904YXXX-C,BD9E104FJ,BR93A66RFVT-WM,BD9E151,BR24GXXX-3 SERIES,BD46XX5G SERIES,BD33C0A,BU45KXX2G,BD37A19FVM,BR24G08FVT-3A,BD49EXXG-M SERIES,BD90C0A,BR93H46RF-2C,BU7475SHFV,BD52WXXG SERIES,BD99011,BD9150,BD9151,BD9152,BD99010,LMR341G,BR25H32NUX-5AC,BA9744,BA9741,BRF0520A,BU9891GUL-W,BD2233G,BD9A101MUV-LB,BR25G256FVT-3,BR25H080FJ-2C,BDXXGA3,BD90C0AW,BU7442S,BUXXTA2W,BR24H04NUX-5AC,BR24G04NUX-3,BD45XX1G SERIES,BV1LC105FJ-C,BAXXJC5(W),BR93G46FVT-3A,BR93G46FVT-3B,BDXXGA5,BR93G86NUX-3,BV2HX045EFU-C,BD9A302QWZ,BD9A300MUV,BD82044FVJ,BUXXJA2DG-C,BD9G341AEFJ-LB,BD2232G,BR25H08FVM-5AC,BD47XXG,BA2107G,BR25A512FVT-3M,BR25H160FVT-2C,BR24H32FVM-5AC,BR25HXXX-2C,BR25H02NUX-5AC,BU7444F,BD99A41F,BD45EXX2G-M SERIES,BM2LC105,BD7LS97G-C,BR25H020F-2C,BD2264G-M,BU7495HFV,BD49KXXG,BR93G66F-3A,BR93G66F-3B,BD8306MUV,BV1LB085FJ-C,BR24G128FVM-5,BR24G128FVM-3,BDXXGC0,BA2901YXXX-M,BAXXCC0,BD9E100,BD9E101,BU33UV7NUX,BD9E104,BD9P105,BR93H56RFVM-2C,BD52WXXG-C SERIES,BDXXHA5MEFJ-M,BR24G02FVM-3A,BA3474YFV-C,BD7561SG,BR93G66NUX-3,BR25G

08.2019 - ROHM - 选型指南 - Ver. 4.0 代理服务技术支持采购服务

智能锁和门禁楼宇解决方案

型号- ATS,KMR2,59170,MDSM-10,LF11115TMR,SMDJ,59166,59177,H-36,JS,MITI-7,PGB10402,PGB10603,PTS,ZMA,FDSD,LF21215TMR,SC1205-01UTG,KSC,SP1233,LS1205EVD33

2024/1/2 - LITTELFUSE - 应用及方案代理服务技术支持采购服务

ROHM（罗姆）运算放大器/比较器选型指南（中文）

描述- ROHM的运算放大器/比较器有双极(bipolar)型、CMOS型。已经为用户准备好许多适用于接地检测(单电源、双电源)、高耐压、低噪声、低饱和、低消耗电流、输入输出最大振荡等多种用途的产品。

型号- BU7421S,LM4565,BU7445S,BU7245,BU7244,BU7242,BU7295S,BU7241,LMR1803Y,BU7271S,BU7481,BA82904Y,BA83474Y,BD7282,BD7280Y,BU7475,BU7233,BU7232,BU7231,BU7230,BA4558Y,BU5265S,BD7284,BA82903Y,BD12734,BD12732,BD12730,BD7281Y,BD87524,BU7205S,BU7411S,BD87522,BU7465,BU7464,BU7462,BU7461,BU7261S,BD7541S,LM8391,BA82902Y,BA4580Y,BA8391,BA83472Y,BD87554Y,LMR1802Y,BU7262S,BU7250S,BD7542S,LMR982,LMR981,LMR1801Y,BA82901Y,LMR1801,BU7441S,LMR1803,BU7465S,LMR1802,BU7291S,LMR1701Y,TLR377,LM8391EY,BU7442S,LM358,BU7275,BU7271,BA3404,LM324,BU7266,BU7265,BU7264,BU7262,BA2901S,BU7261,BA3472W,BA3472Y,BA2901Y,BA3472R,BD7561S,LMR376Y,BA4560Y,BU7444S,BA4584Y,BU7255,LM339,BU5255S,BU7495,BU7253,BU7252,BA4584R,BU7251,BU7250,BU7294S,BD7562S,TLR4376Y,BU7485S,BU7255S,BA2904,BA2903,BU7231S,BA2902,BU7486/,BA2903S,BA2901,BA2107,BU7461S,BA3474Y,BA2903Y,BA3474W,BA3474R,LM2902EY,TLR4377Y,BU7244S,BU7462S,BU7486S,BU7232S,BU7487/,BU7232Y,BA2902S,BD7562,BD7561,BD87584Y,BU7244Y,BA2902Y,LMR321,LMR324,LM393,BU7233S,LMR1701,BU7245S,BU7487S,BU7475S,LMR341,BU7233Y,BA4510,BD1321,LM2901EY,BU7291,BA4564W,BU7464S,LMR1001Y,BA2904S,BD7542,BD7541,BU7295,BA2904Y,BU7294,BD87582Y,BA4564R,LMR344,LMR342,TLR344,TLR341,TLR342,BU7275S,BD87581Y,LM2904,BU7442,BU5265,BU7441,BU7481S,BU7251S,LM2901,LM2902,LM2903,BD77502,BD77501,BD77504,BU7205,BU7445,LMR358,TLR377Y,BU7264S,BU7264Y,BU7252S,BA4584,BU5255,BD5291,BU7495S,BU7253S,BU7265S,BU7421,BU7241Y,BU7241S,LMR932,LMR931,LM2903EY,LMR934,TLR2376Y,BU7266S,BU7242S,LM4559,BU7485/,LM2904EY,BU7242Y,BU7230S,BA3472,LMR822,LMR821,TLR376Y,BA3474,BU7411,LMR824,TLR2377Y

2024/2/27 - ROHM - 选型指南代理服务技术支持采购服务

【经验】干簧管与霍尔开关的位置和方向摆放设计

本文以Littelfuse干簧管59170和芯进电子的霍尔开关CC6204为例，主要介绍了干簧管和霍尔开关设计的一个平衡点，考虑环境温度、价格，甚至是产品使用过程的特性、运输方式等，以保证设计的正确性。

2020-11-08 - 设计经验

关于接地检测比较器，请告知在BA8391G、BA2903、BA2901系列中，当电源电压(VCC)小于输入端子电压时流过输入端子的电流值。

接地检测比较器从VEE到输入端子具有静电保护二极管。在电源电压(VCC)小于输入端子电压时，只有二极管的反向漏电流流入输入端子，其参考值为在25℃下数10pA左右。

2024-07-30 - 技术问答

ROHM通用比较器选型表

ROHM的比较器有双极(bipolar)型、CMOS型。已经为用户准备好许多适用于接地检测(单电源、双电源)、高耐压、低噪声、低饱和、低消耗电流、输入输出最大振荡等多种用途的产品。

Power supply (Min.) [V]

Power supply (Max.) [V]

Circuit Current (Typ.)[mA]

Input Offset Voltage (Max.)[mV]

Input Bias Current (Typ.)[nA]

Input Voltage Range [V]

Response Time (Typ.)[µS]

Output Type

Temperature (Min.)[°C]

Temperature (Max.)[°C]

AEC-Q100 (Automotive Grade)

选型表 - ROHM 立即选型

BA12003DF-Z BA12004DF-Z 7路达林顿晶体管阵列数据表

描述- 该资料介绍了ROHM公司的两款达林顿晶体管阵列产品BA12003DF-Z和BA12004DF-Z。这些产品由7个电路组成，具有内置输入电阻以限制基极电流和内置输出浪涌吸收钳位二极管的特点。主要应用于电机驱动器、LED驱动器和电磁线圈驱动器等领域。

型号- BA12003DF-Z,BA12004DF-Z,BA12003D,BA12004D,A12003DF,BA1200XDF-ZE2,BA12003DF-ZE2,BA12004DF-ZE2,A12004DF

24 . Aug .2018 - ROHM - 数据手册 - Rev.009 代理服务技术支持采购服务

关于接地检测比较器，请告知在电源接通时序中，当电源电压(VCC)小于输入端子电压时的情况及注意点。

关于输入电压高于电源电压时的IC情况，如果一个输入端子的施加电压在同相输入范围内，则为与正常输入时相同的输出逻辑，如果两个输入端子的施加电压在同相输入范围外，则输出固定为Low。有关注意事项，由于接地检测比较器从输入端子到电源端子基本上都没有静电保护二极管，因此即使电源电压(VCC)小于输入端子电压，也不会有电流流入，只要输入电压不超过“绝对最大额定同相输入电压”，就不会发生劣化和损坏。但是，部分型号（BA10393F、BA10339F、BA10339FV）由于元件耐压方面的原因，有可能会发生劣化和损坏，因此要将“绝对最大额定同相输入电压”限制到VCC。

2024-07-30 - 技术问答

ROHM（罗姆）运算放大器和比较器选型指南（英文）

目录- Operational Amplifiers Comparators

型号- BU7421S,BA14741,BU7445S,LM4565,BU7245,BU7487,BU7244,BU7486,BU7485,BU7242,BU7241,BU7295S,BU7271S,BU7481,BA82904Y,BA83474Y,BU7475,BU7233,BU7232,BU7231,BU7230,BA4558Y,BU5265S,BA4558R,BD12734,BA82903Y,BD12732,BD12730,BU7205S,BU7411S,BU7465,BU7464,BU7462,BU7461,BU7261S,BD7541S,BA4580Y,BA82902Y,BA8391,BA83472Y,BA4580R,BU7262S,LMR1802Y,BU7250S,BD7542S,LMR982,LMR981,LMR1801Y,BA82901Y,BU7441S,LMR1801,BU7465S,LMR1803,LMR1802,BU7291S,LMR1701Y,BU7442S,LM358,BU7275,BA3404,BU7271,BA15532,LM324,BU7266,BU7265,BU7264,BU7262,BA2901S,BU7261,BA3472W,BA3472Y,BA2901Y,BA3472R,BD7561S,BA4560R,BA4560Y,BU7444S,BA4584Y,BU7255,LM339,BU5255S,BU7495,BU7253,BU7252,BA4584R,BU7251,BU7250,BU7294S,BD7562S,BU7255S,BU7485S,BA2904,BA2903,BU7231S,BA2902,BA2903S,BA2901,BA2107,BU7461S,BA3474Y,BA2903Y,BA3474W,BA3474R,BU7244S,BU7462S,BU7486S,BU7232S,BA2115,BU7232Y,BA2902S,BD7562,BD7561,BD87584Y,BU7244Y,BA2902Y,LMR321,LMR324,LM393,BU7233S,BU7245S,LMR1701,BU7487S,BU7475S,BA15218,LMR341,BU7233Y,BA4510,BD1321,LM2901EY,BU7291,BA4564W,BU7464S,BA2904S,BD7542,BD7541,BU7295,BA2904Y,BU7294,BA4564R,BD87582Y,LMR344,LMR342,TLR344,TLR341,TLR342,BU7275S,BD87581Y,LM2904,BU7442,BU5265,BU7441,BU7481S,BU7251S,LM2901,LM2902,LM2903,BD77502,BD77501,BD77504,BU7205,BU7445,LMR358,BU7444,TLR377Y,BU7264S,BU7264Y,BU7252S,BA4584,BU5255,BD5291,BU7495S,BU7253S,BU7265S,BU7421,BU7241Y,BU7241S,LMR932,LMR931,LMR934,LM2903EY,TLR2376Y,BU7266S,BU7242S,LM4559,LM2904EY,BU7242Y,BU7230S,BA4558,BA3472,LMR822,LMR821,BA3474,BA4560,TLR376Y,BU7411,LMR824,TLR2377Y

2022/8/3 - ROHM - 选型指南 - Edition 2022 代理服务技术支持采购服务