【经验】如何使用通用的Buck芯片直接生成负压的解决方案?
在产品设计、电子电路应用中,会经常使用到负电压电源。
图1 负压电源应用于GaN射频功率管
如常见的PC电源中,通常会用到负压电源为串口提供逻辑判断电平;在单板设计中如运放、IGBT驱动、传感器等应用中也可能使用到负压电源;在音响设备中,震荡和反馈电路都需要负压电源,以此增加它的动态范围;常闭型氮化镓场效应晶体管(GaN射频功率管)也需要采用单独的负电源。
一、如何产生负压
常见的正电压输入负电压输出的方法有三种:
使用charge pump方式
此应用所需外围器件少,但负载能力较弱,输出功率极小,电压精度低。
使用Buck-Boost电路
此方式成本较高。
使用反激电路
需要采用变压器隔离绕组反接输出,因此设计较为复杂,但可以同时输出多路正负电源,在同时需要多种正负压电源时此方案较为适用。
本文将介绍一种使用通用的Buck芯片直接生成负压的解决方案,简单易用,且目前通用的Buck芯片负载能力可达几十安培、输入电压范围已覆盖几伏至上百伏,应用覆盖范围广。
二、Buck芯片负压使用
芯洲科技SCT24xx(40V耐压、0.6A-6A负载能力)、SCT26xx(60V耐压、0.6A-5A负载能力)等一系列40V、60V等芯片均可实现正压转负压输出。
图3 SCT2430电路图
如图3所示,负压输出和正压输出,外围器件数量和框架基本一样,所有的元器件保持原位,电感的输出端接至大地,形成一个新的电位,原本的大地作为输出,设计简单。
图4 负压输出工作状态
如图4所示,假设Q1导通压降为VQ1,Q2导通压降为VQ2,在Q1开通(ton)期间和关断(toff)期间,电感L1上的电压如下:
Von = Vin - VQ1
Vof = -Vout + VQ2
根据伏秒平衡原则:
Von × ton = Voff × toff,同时因Q1、Q2导通压降远远小于Vin、Vout,因此VQ1、VQ2可忽略,由此得出:
根据以上公式可得出工作占空比D为:
如图5,24V输入转-12V输出,占空比约33%,实测与理论计算基本匹配。
因此:Vo=- Vin×D/(1-D)
由上可知,输出电压的绝对值即可以大于输入电压也可以小于输入电压,结合其工作状态示意图可以看出,其本质已不再工作在buck状态,而是buck-boost状态,因此实际应用时外围器件选型、负载能力不可再按照buck电路来进行选型和设计。
三、设计中的注意事项
1.负压输出时芯片可支持的最高工作电压不再是芯片规格书标称的最大值,可按照公式Vin = Vin_max - | Vout |评估。
以SCT2630为例,正压输出应用中芯片可支持的最高输入工作电压为60V,而当输出电压为-5V时,则芯片可支持的最高输入工作电压Vin= 60V - |-5V| = 55V
2. 输入电容的耐压选择、若使用非同步整流芯片(如SCT2630)时的续流二极管耐压选择也需参考如上第一条留足降额;
3. 由于在Q1导通期间,输入没有向输出提供能量,此时主要是输出电容给负载供电;只有在Q1关断Q2导通期间,由电感提供能量给负载同时给输出电容充电,输入输出均不连续,因此输入输出纹波电压比正压输出时略大;
4. 因为电感电流是叠加的,所以负压输出应用时芯片最大输出电流≤标称值的一半;
5. 底部带散热焊盘的芯片,PCB布局时建议底部散热焊盘接Vout,不建议接单板GND。
如下图为SCT2630:输入24V,负载2A,输出+12V、-12V实测数据对比:
图7 24V输入,+12V输出
图8 24V输入,-12V输出
方案总结
采用通用的buck降压转换器实现负压输出,设计简单易用,综合成本、性能、体积在负压应用场景中的性价比较高。
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本文由ll转载自芯洲科技 微信公众号,原文标题为:技术分享 | 第七篇:常见Buck电源芯片负压输出应用,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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Nisshinbo(日清纺)车载用芯片选型指南(中文)
目录- 公司简介 品质等级及长期供货计划 车载应用框图 车载用芯片推荐产品 产品封装一览 产品索引
型号- R1515,R1516,R1513,R1514,NJW4182-T1,R1517,NJU7089,R1518,RP115-A,R1513-K,RP130-A,R3134,R1511,R5109-J,R1510,R1191,NR4250-P,NJG1187KG1,NJW2369,R1513-A,R5109-A,R1190,NSNJ9205,R3120XXXXA-A,R1526,R3151XXXXE-A,R1524,R1525,R3119XXXXA-J,NV3601-P,NJU7077,NJU7870,R1524-K,NA1150,NSNJ9208,NC2905-P,R3500-A,R8156,R1524-A,R8153,R8152,R1273-A,R3500-K,R8155,R8154,RN5T569,R3150XXXXB-J,R8151,RP550,NV3601-Q,R8150,NJG1814MD7,R1245-J,NJG1175KG1,NJU77701,NJG1159PHH-A,RP108,R3154,R3152,NJW4760,R3151,R1260-A,R8160,NJG1801AKGC-A,NJG1182UX2,R1260-K,R1245-A,NJW4106-T1,R3120XXXXE,R3151XXXXF-A,NV3600-P,NJU7890,NSNJ9200A,NV3600-Q,R3120XXXXA,R1540,R5106,R5107,R1525-K,NJG1804K64,R5108,R5109,NJG1150UA2,R5104,R5105,R1540-K,NJG1815AK75-A,R3160,NJU72015,R1525-A,R1272-A,R5114-K,NJW4171-T1,R1540-A,R1272-K,NL6012,R5114-A,R8315XXXXA,NJW4105-T1,RP550-A,NV3601,R8315XXXXB,R8315XXXXE,R1560-A,R8315XXXXF,NV3600,NJG1681MD7,R1276,NJG1669MD7,R1511-K,NJG1155UX2,R1278,R1560-K,NJW4107,NJW1871,NJW4106,NR1640,NJW4105,NR4252-P,NJW4104,R1272,NJM2369,R1511-A,R1273,R8300XXXXA,ND1433,R1270,R1150,R1271,MUSES8920A,R8300XXXXE,R8300XXXXG,NR1640-Q,NR1640-P,NJM41001,NJM41005,R5524,R5115-K,R8359,R8358,NJG1684ME2,R5523,R8355,RN5T5611-K,NJW4116,R8357,R8356,R1163,R1271-A,NJW4110,NR1700-P,NJG1818K75,NJM2815,NJM2816,R1271-K,RP510,R5115-A,NP8700-P,PR550,R1561-A,R3118,R3117,R3116,NJM2904B,R1561-K,NJG1144KA1,NJM8208,R1290,R3152-A,R1170,NJW4203,NR4254,R1294,R1171,R1172,NJM2903,R8360,R3152-K,RN5T569-A,RP108-A,R1278-K,NJU72060,NJU71091,NR4250,R5116-K,NJG1801BKGC-A,NJU71094,NR4252,R3121XXXXE-A,NJM11100-T1,R1500,R1501,R1180,NT1192FAAE1S,R3121,R3121XXXXE-K,R1270-A,NJM2119,R1270-K,R5116-A,R1278-A,NJW4750-T1,R3150XXXXA-J,NP4271,R1517-K,NJM2879-H,R3117-A,R5105-J,RN5C750,RP111-A,R1517-A,RP510-A,R1114,RP510-K,NR4254-P,R3120XXXXE-A,NJW4142,NJW4140,RP111-J,R5105-A,NC2905,NJU77572,NJG1187AKGC-A,R3151XXXXA-A,NC2780-P,NJU8759A,NC2780-Q,NJU7907A,R5117-K,R1245,R3119XXXXE-J,NJG1186PJL,R5117-A,NJW4830,R3150XXXXF-J,RP506-A,NJM11100,NJG1809ME7,NJW4154,RP154,RP506-K,NJU72090,NJM8080,RP171-J,R1518-K,R3154-R,R3116-A,NJU72097,R5106-J,NJG1802K51,NJM8087,NJW4119,R1518-A,RP171-A,R5106-A,R3154-A,R1130,RP506,NJM12884,NJG1173UX2,RP170,RP171,R1276-K,R3151XXXXB-A,NJU77552,R3121XXXXG-A,NJG1801K75,NJM8532,R1276-A,R5110-K,NT1189GDAE3S,R3121XXXXG-K,NJW4133,R1260,NJW4132,R5110-A,NJU7046,NJU7047,NJU77242,RP132-J,NJG1170UX2,R3119XXXXA,NJW4152-BA,R3119XXXXE,R5117,R5107-J,NJG1806K75,RP132-A,NJG1817ME4,R5114,NJW1871A,R5115,R5116,R3160-A,R5110,R5107-A,R5111,R3121XXXXG,R5112,RN5T5611,R3121XXXXA,NP8700,NT1191GEAE3S,NJG1815K75,R3121XXXXE,NJW4182,NJG1169UX2,NJU7367B,R3151XXXXE,R1526-K,R3151XXXXF,R3151XXXXA,R1560,R1561,R3151XXXXB,NJW4868,R3500,R1526-A,NJW1241,NJW1240,R5111-K,NJG1812AMET-A,NJW4750,R3160-K,RP111,R5111-A,RP115,NJU77582,R3118-A,NJW4107-T1,RP154-A,R1211,R5108-J,NJG1161PCD,R5108-A,NC2780,NJW4841,NJG1682MD7,NJU7907B,R3118-K,NR1700,NJU7057,NJW4175-T1,R3121XXXXA-A,NM12884-H,R3121XXXXA-K,R3150XXXXE,R3150XXXXF,R1580,R5112-K,NJU77903,NJM2879,RP130,NJW4175,NP4271-P,RP132,R5112-A,R3150XXXXE-J,NJW4171,R3150XXXXA,R3150XXXXB
纳芯微汽车电子解决方案 助力汽车电动化和智能化发展
型号- NSL23916-Q1,NSI1311,NSI6601,NSI7258,NPC060N065A,NCA8244,NSM2017,NSM2019,NSM2013,NSI22C11,NSM2015,NSM2011,NSR33XXX,NSC9262,NSI1300,NSC9264,NSREF31XX,NSI1306,NSR2240X,NPS0X0N065A,NSP1830,NCA1169,NCA1044,NCA1043,NSR7808,NSOPA240X,NSE11409,NSP1831,NSC9260X,NSP1832,NSM2020,NSL2161X-Q1,NSD8306,NSOPA8XXX,NSD731X,NSD8308,NSI67XX,NSD1026V,NSE34050,NSL31682-Q1,NSCSA24X,NSL21912-Q1,NSI6622V,NSPDC1,NSR31XXX,NCA1021S,NSD8310,NSD8312,NSD1624,NPI030N065A,NSR104XX,NSI6651,NSD11416,NSI22C12,NCA1051A,NSUC1602,NCA1462,NSD8381,NSD56008,NSM3011,NSIP2266-Q1,NSPADX,NSM3013,NSM3012,NSI6801,NST60-Q1,NSUC1610,NSI824X,NCA9539,NST175-Q1,NSR7850,NST175,NSM203X,NSIP605X,NSOPA9XXX,NSI6911,NST86-Q1,NSP1631,NSD12409,NSP1632,NSPASX,NSP1630,NSE425X,NSM1013,NPI040N120A,NSL23924-Q1,NCA9555,NSI822X,NSA9264,NCA1042B,NSD12416,NSA9260X,NSPGM2,NSM2117,NSPGM1,NSI6602V,NSD3608,NSM2113,NSM2115,NSD3604,NSL31520-Q1,NSL2163X-Q1,NSR35XXX,NST20,NSREF30XX,NPC0X0N120A,NSI1200,NSI6611,NSPAS1,NSPAS3,NST235-Q1,NCA1145,NSCSA21X,NCA1043B,NSE5702,NSI6601M,NSE5701,NSR114XX,NSR1048,NSL23716X-Q1,NSM1030
SP1N28 3.8V-36V Vin, 5A, High Efficiency Synchronous Step-down DCDC Converter with Programmable Frequency
型号- SP1N28STE,SP1N28,SP1N28STER
宝砾微(powlicon)电源管理芯片选型指南
描述- PowIicon Inc.(宝砾微电子有限公司)2015年创立于深圳,专注于为用户提供具有创新性、高性价比、高集成度的电源管理芯片。产品广泛应用在机顶盒、路由器、电视机、电子烟、电表、车载电子、电动交通工具、HUB、Type-C PD等领域。深度的系统和应用知识、强大的电源管理芯片设计及创新能力、以及受专利保护的定制工艺是宝砾微的核心竞争力。
型号- PL84051,LYF95101X,LYF8F30832,PL8316,PL8105X,PL9406,PL9405,LYF91133,PL3301X,PL5002,PL8312,LYF95101C,PL5601,LYF95101A,PL1201,PL59011,LYF91131A,PL9001,PL8310,LYF91131B,PL89032,PL8805X,PL5802B,LYF98103,PL1402,PL1401,PL3305,LYF8F2021,LYF9603X,LYF40011N65,LYF92122,LYF93011,PL6301,LM324H,LYF9602X,PL8323,LYF4401-XX,PL8403,PL83251,PL8322,LYF65GN04,PL8332G,LYF65GN02,LM4580,LYF9021,LYF1020N10,LYF9604X,PL8810X,LYF91750,LYF32F764,PL56001,LM321H,PL83222,PL5701,PL5700,PL5501,PL5500,PL6830,LM4558,PL89052,LYF78LXX,LYF92021,LYF98001,LYF8F2041,LYF91132,LYF91131,PL8205X,PL6200,PL30502,LM358H,PL8106
纳芯微公司介绍
型号- NCA8244-DTSTR,NCA8245-DSWTR,NSI6602,NCA1051,NSI1312,NCA9617,NSI8308X,NCA8244,NSM2017,NSI6611X,NSM2018,NSM2019,NSM2013,NIRS485,NSI6801X,NCA8T245-DTSXR,NSM2015,NSM2016,NSD1624-Q1,NSI6601B,NSM2011,NSI6601C,NSM2012,NSI6651X,NSI6631ASC-DWSR,NSI36XX,NSI6601MB,NSI6801L,NSI6601MC,NSI1306,NSI824X,NSI812X,NSI8308XE,NCA1042,NSI6801T,NSI6801,NSI1305,NCA1043,NSI6622X,NSR35XXX Q1,NSM201X,NSE11409,NSM2020,NSL2163X,NSD8306,NCA8244-Q1TSTR,NSD8308,NCA3491,NSD1025X,NSI8308A,NSI86XX,NSI6651ASC-DWSR,NSI68010,NSI68011,NSI1303X,NSI6851X,NSI66X1X-Q1,NSM2035,NSM2031,NSM2032,NSI6801C,NSM2033,NSIP8308X,NCA8245-DTSTR,NSD1624,NSR31XXX Q1,NSI6801B,NCA8245L-DTSTR,NSI6811,NSD731X,NSIP88XX,NSI1400,NSI6931,NSI82XXC,NSD11416,NSI826X,NCA3485,NCA8541-DTSTR,NSD56008,NSI82XX,NCA8244L-DSWTR,NSM2041,NSI6651ALC-DWSR,NSL2161X,NSI319X,NCA9539,NSI6601X-Q1,NSI6611ASC-DWSR,NSR33XXX Q1,NSI821X,NIRSP31,NSG65N15A,NSD5604,NSD122X,NSI66X1X,NSI6911,NCA9646,NSIP89XX,NCA9645,NCA9648,NCA8244-DSWTR,NSD12409,NCA8245L-DSWTR,NSD2621,NSIP87XX,NSD1015,NSI810X,NSI6601MX,NCA8T245-Q1DTSXR,NCA1042A,NSI823X,NSI6601XM,NSI1311X,NSI6602V,NSD3608,NSI6602HC,NSI6601X,NSI6602HB,NSIP1042,TL432,TL431,NSM2111,NCA84245-DTSXR,NSD1025,NCA82DS44-Q1TSTR,NIRS31,NCA8244L-DTSTR,NSI1200,NSI1042,NSI6611,NCA9306,NCA1145,NSI6602HA,NSI822X,NSI1300X,NCA1021,NCA8244-Q1SWTR,NSI6601WC,NSD262X,NSI6602B,NSI6602C,NSI6602E,NSI1050,NSIP8XX,NSI6602A
SCT9431 3.8V-36V Vin, 3A Synchronous Step-down DCDC Converter with EMI Reduction
型号- SCT9431FSA,SCT9431
芯洲科技BUCK芯片更卓越之路——LDO模式新优化,适应更宽范围输入电压
BUCK芯片因其高转换效率成为工程师们的首选,尤其在输出较大电流时;LDO(低压差线性稳压器)可以支持更小压差的降压转换,且输出电压更稳定,但无法支持较大负载场景。芯洲科技开发第二代BUCK芯片的LDO工作模式,在实现降频工作的基础上,同时限制最低工作频率,避开人耳可听噪声频段,从芯片自身层面解决实际应用中带来的困扰。
产品 发布时间 : 2024-07-19
Company Introduction
型号- BSS169,USMS05,SD103AW,DTD113Z,P1583,P1580,LR9284,FR107G,LR9282,UR78XX,TIP102,LR9280,LV358,SXXXX,UM605A,UM605B,LR3865,2SC4467,XC61CN,XN65,UM603A,MMBT2222,UD38501,IPI90R500C3,XN60,LR1107E,U74LVX4053,F3N70,TVS4S009,LM317,UD24121,LM318,UF630,R5323,BAT54TS,UCD4066,SK-SERIES,40NM80-Q,TLVH431,BAS70AW,TIP112,UCL-SERIES,BTB312,LD1117,LD1596,BAT54TB,2SC5200,UM604A,F21NM70,LL431,UFR8060C,PCR406,UM602A,SOT05C,2SA1694,BAT54SW,BAT54ATB,UESDA6V1W5,SMDJ,UF50N20,TIP35C,LR1108E,UF601,SMCJXXX,UF600,BAS70C,BAS70A,75185,ZXMHC10A07N8,UR77XX,U74LVC2G240,UH8100X,TIP122,U74LVC2G241,BTA312,75NM70,DTC143X,LR3965,UM601A,U74AUC1G126,DTC- SERIES,USB4S012,UCD40XX,U74LVC2G132,BAS70W,40-SERIES,LR9153,UR5596,UF601Q,75NM65,78R05,UPRTR5V0U4D,XN80,SD103AWS,BAS70S,MBR20150C,75NM60,UCC SERIES,2SD1804,URCZ1284-XX,LR1118,U74CBT,LP2950,U74AUC1G86,TXXXX,SB10100,MGBR40V300C,8N150,U74AHCTXXX,78-SERIES,UR6512,UFR75120,UR57XX,UD9926,F30NM60,UIC809,LADLD10,15N20,LM78XX,LM358,LR3XXYYB,RB521S30,13NM90,LMV331,LADLD SERIES,UF830,88CXX,TMBS,F2N60,U74HCT73,CR03AM,MBR-SERIES,FDS9926A,TGBR10V200,60NM50,BAT54CTB,UM606D,LM321,BAV199W,UTRS458,SR26,LM324,SR24,RB520S30,LM317A,1NNPP10,DTC123J,LR91XX,P1484,UZ5C056,89CXX,HE8050,5N80-FCQ,UR56XX,TL431,UM607D,UD36241,LM79XXA,UM607B,78DXX,MC4580,DTC124E,LR1108,UIC813,UIC812,LR1106,UIC811,UTT220N03,UC3206,RB520S40,UR6517,LM339,U74LVC,LR1101,BU931,P1595,P1596,BAT54STB,SMDJXXX,U74LVX,MBR10100,U74HCT138,L1806,LR2128,LR2125,MJE3055T,79LXX,75323,DTA144E,LR1122D,2NM65,1SS400,BAV70S,10N70-ML,81NXX,2N7002K,BAV70W,10N70-MH,BAV70T,U74LVC1G125,MBR20100C,UD32121,UMX4215,BAT54S,US650,MMBD4148CA,MMBD4148CC,U74AUP1G74,DTB123Y,P3596,U74LVC02A,BAT54C,BAT54A,MGBR60V200C,BAT721C,LM393,SK1816,BAT721A,U74LVC373,MGBR20L300C,2SC5027,U74LVC258,UR5517,LR1012,TL072,40- SERIES,U584,SK1901,TMBS SERIES,UTRS485,ULN2803,ULN2804,UF9640,75232,2N7002Z,LMV393,SK8552,UCD4011B,BAT64A,TGBR40U100C,USG135N10,U74AHC164,BAS316,1N4148,BTA312A,BSS127,BSS123,LR6401,74-SERIES,USG80N10,U74AHCT86,U74AHC374,TDA2030A,UT4101,UH8102A-X,9N120,IRF9640,RB501-V40,ULV8542,74AUP1G04,U74AUP1G32,UCD4001B,UP1620,TGBR20U100C,UTT80N10H,UT7500,82NXX,4N65-TC3,UT10XX,RHRG75120,BYC20,TGBR40V100C,78D12,U7SB3157,TYN840,DTA114E,BAT42VS,BAT54WS,MCR100,ULC831,74LVX4051,317- SERIES,L11831,2SD965,MMBT,U74AHC595,BAT54W,UH8102B-X,USG170N10,TGBR20L100,DTA114W,U74AUP1T157,UT3232,UH8106-X,U74AHC,UMX2215,XN100,U74CBT3306,P6KE,ML1225,DTA- SERIES,UCD4015B,BAS70CW,U74AUP1G02,BSS84ZT,U74AUP1G00,U74AUP1G06,SMDJXXXX,U74AUP1G04,TGBR30S150C,UT3243,LM2940,4051,BAS70SW,U74CBTLV3125,4052,P34563,UC3816,79L05,BAS70,NTR4101P,TPD4S009,MBR10100C,SD106WS,8NM80,MGBR30V300C,BAT54DW,UD0512X,89NXX,BAT54ADW,UC3826,BSS84Z,TGBR,MN2488,U74AHC21,62783,UCR316CM,62784,AO3419,MMBT1815,4P50,C6084,BAS85,1SS133,MGBR60L100C,BAT54CW,ADLD70,USG50N12,MC34119,U74LVCXXX,CD40- SERIES,P1484A,UT3223,UT3222,UT3221,UR133,UZ18C6V8,UF3205,UTT50N06,MAC97A,2SD882,UC3916,FQP10N80C,UHS41,UCD4050B,MJE13001,MJE13003,UMR11N,MJE13005,MJE13007,MJE13009,US112,74LVC373,12P10,82CXX,U74AHC1G09,BAT54AW,U74AHCT32,1SS355,UD0525X,P1482A,BAV23S,BAW56W,SK1816M,83CXX,AP6401,USG60N10,U74AHCT,MMBT3904,BAT54SDW,BAV23C,UR72XX,BAV23A,BAT54,2SD669,BAV99,SMA5V,STD7NM64N,BAT54CDW,NCP702XX,LR1801,7NM70,LR1802,U74CBT1G384,U74LVC1G99,U74LVC2G66,1SS184,U74CBTLV,UT3419,UT232A,MMBD6100,UWD706,U74LVC1G97,UT232E,SK1816A,BAS40,4N150,UTC4013,LR1805,MMBTA06,BU4209,SK24,U74LVC573,U74LVC574,UWD817,UH8104,UH8105,S8050,79- SERIES,BAT54TDW,BAV70,UTRS3082,UTRS3080,UH8103,MMBD4148,12N80-FC,BAV20W,M2125,UTRS3088,UPC10XX,UTRS3085,UR71XX,2SA1943,UCSR3652S,78LXX,LR9500,BAS21,U74AUP1GXX,SMAJXXXX,UR76XX1,HT75XX,MGBR20V100C,SB-SERIES,X0202A,MN2510,UC3656,89N09,UM6K1N,MMBD7000,SBR SERIES,U74LVC2G32,U74LVC1G58,UD36061,MMBTA44,UC3666,UCSR3654S,LR1965,U74LVC1G57,BUXXTD,LR9203,XNM90,X0202,BT151,ULD2003,LM78XXA,2N7002,U74AUP,UC3879,U74- SERIES,ES1J,MC34074,MGBR,MC34072,U74AUPXXX,SMAJXXX,BSS84,BAW56,BTA12,UC3873,ULN2003,MAX809,ULN2004,MMBD4148SE,UD0530X,82XX,S-809,9013,LADLD70,UC38XX,XL1225,LADLD,SR-SERIES,78RXX,UC34163,UCC,CD4000,U74AUC,UCS1655S,MMBT5551,U74AUC1G08,SN74AHCT86,UT136,LM7912,N7000,LV2461,UT131,LV2460,LR2965,XNM65,CCVGA7C9,N7002,LR9113,U74AUC1G02,XNM60,CCVGA7C5,15NM70-U2,U74LVC1G19,UFR SERIES,SR2803,UR76XX,ULVH431,UZ1084,UD0520X,LM7805,LM393 SERIES,81XX,BSS139Z,UC3863,SRV05-4,U74LVC1G10,USG40N10,US5C3257,UR6223,UR6225,VGA7S019,UCD4081B,U74LVC86A,UN2488,78- SERIES,UD18203,MXXXX,UT71XX,LV324,LV321,LMH358,UPC817,81CXX,UPC816,MAX485 SP232A,XNM80,LR9101,CD4052,UR75XX,UCD4070B,RB751V40,SMBJXXX,BZA100,ULC393,UCD40106B,UD0510X,UFR,88NXX,BAV199,P6KEXXX,SBR,LM7824,TLV733XX,XN40,IRF3205,F4N60,LR9107,LR9102,IRFP22N60K,LR9103,UM603,LR18120,78L05,UM602,PUSB220,QS8M11,UCD4071B,UD4606,UM606,UM609,UM608,R1180X,LXXLD30,4N65-ML,UD38252
电子商城
品牌:芯洲科技
品类:High Efficiency Step-down DCDC Converter
价格:¥4.3392
现货: 4,000
现货市场
服务
提供电机的输出反电势波形测试、驱动芯片输入/输出波形测试服务,帮助您根据具体应用场景来选择适合的电机驱动芯片型号,确保电机驱动芯片能够与其他系统组件协同工作达到最佳效果。支持到场/视频直播测试,资深专家全程指导。
实验室地址: 成都 提交需求>
提供稳态、瞬态、热传导、对流散热、热辐射、热接触、和液冷等热仿真分析,通过FloTHERM软件帮助工程师在产品设计初期创建虚拟模型,对多种系统设计方案进行评估,识别潜在散热风险。
实验室地址: 深圳 提交需求>
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