【经验】拓尔微电子降压DCDC芯片TMI3343的外围电路设计经验
TMI3343是一个宽压同步高效率的降压DCDC芯片,最大输出电流可达3A并且软启动事件可调,它集成了低导通电阻的开关:120mΩ的高侧开关与80mΩ的低侧功率MOS。关断电流低于3μA,固定340KHz的开关频率,另外还具有很多先进功能,可使用在机器人、打印机、总线等应用场合上。本文主要介绍了拓尔微电子的降压DCDC芯片TMI3343在设计中的一些外围电路设计的经验,给大家在设计中一些参考。以下为芯片的引脚示意图:
BS引脚为高侧门驱动引脚,一般在BS引脚与SW间通过一个100nf的电容连接,此电容为自举电容,内部的高端MOS需要得到比IC的VCC更高的电压,通过自举电容即可得到,否则高端MOS无法驱动。
SW是开关引脚,连接至外部的电感器,电感器的感量与电流可通过规格书中的公式计算。
EN引脚为使能引脚,VEN大于1.5V时设备开启,低于0.4V时设备关闭,注意此脚不要悬空。如果不需要用逻辑信号控制此脚可通过电阻上拉至CC,但是要注意电阻的阻值,此脚的输入电流不要超过1mA。
FB引脚为电压反馈引脚,可通过输出电压下拉两个电阻通过分压输入给FB,FB引脚内部含有一个0.8V的基准源,通过比较器改变占空比从而稳定想要的输出电压,在电阻上可并联一个电容使得环路更稳定,如图所示:
SS引脚为缓启动时间设置引脚,时间Tss可参考规格书中的计算公式计算得到。
希望以上经验对大家设计有所帮助。
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拓尔微电子(TOLL)电源管理/马达驱动/电池管理/接口控制/信号处理/汽车应用芯片选型指南
描述- 拓尔微电子股份有限公司成立于2007年4月,是一家专注于高性能模拟及数模混合芯片研发、设计与销售的集成电路设计企业,致力于向个人消费电子、智能家居、网络通信、工业控制、汽车电子等下游领域提供高性能芯片及模组产品。历经十余年的研发积累与市场拓展,公司规模快速增长,先后在杭州、深圳、厦门、广州、无锡、成都和台湾等地建立分支机构及研发中心。
型号- TMI4056,TMIS23601,TMI7321,TMI7320,TMI4054,TMU003,TMI86881HAX,TMI7431Q,TMI85120S,TMI7206,TMI8423,TMI8421,TMI9743A,TMI8420,TMI6240,TMI6241,TMI86880HCX,TMI86880HDX,TMS8020XX,TMI31601,TMI4054H,TMI8549,TMI8548,TMI9404,TMI6013,TMI6011,TMI6262AL,TMI86881HCX,TMI5122D8,TMI6038D,TMI3255TF,TMI6038C,TMI6263CH,TMI9408,TMI9405,TMI82H05D-Q1,TMI8118S,TMI9410,IM5200,TMIS7701C,TMI86881HBX,TMI7431E,TMI4056D,TMI3255SF,TMI3244TF,TMI8140-Q1,TMI4056H,TMI8208,TMI9416,TMI4056E,TMI3113H2D,TMI36010,TMI6038,TMI6263AL,TMI4101AN,TMI6036,TMI7003,TMI6263AH,TMI8420Q,TMI33431E,TMI87301-Q1,TMI6030,TMI85303,TMS8010,TMI6036D,TMI6036A,TMIS7702,TMIS7701,TMI36021,TMI8720PD,TMI8100,TMI9431,TMI36020,TMI8340,TMI86881HDX,TMS8010N,TMI85303-Q1,TMI6263BH,TMIS1296,TMI8260SP,TMI3181A,STI8070C,STI8070D,STI8070A,TMIS23501,STI8070B,TMIS23502,STI8070G,TMI8113,TMI6056,STI8070E,TMI3252SH2,TMI36030,TMI3181D,STI8070F,TMI36031,TMI8110,TMI8230,TMI6050,TMI5130A,TMI3408D,TMI3408C,TMI3408F,TMIS1025,STI3453,TMI8118,TMI8123,TMI6240I,TMI7003C,TMI8122,TMI7003B,TMI9640A,TMI8120,TMI8722-Q1,TMI6240S,TMI3252SHF,TMI8116-Q1,TMI85121S,TMI6241A,TMI6241D,TMI86881MCX,TMI86880LDX,TMI97051,TMS8609D,TMS8609B,TMI3252TH,TMS8609F,TMS8609E,TMI6411-XXDA,TMI7608,STI3470,TMI3125,STI3472,TMI32520,TMI5302,TMI3253,TMI8180A,TMI3131,TMI3252,TMI3494,TMI6401,TMI3255,TMI2286,TMI9703E,TMI3493,TMI2282,TMI8180G,TMI3492,TMI3252TF,TMI2284Q,TMI86880LCX,IM2406A,TMI3252T,TMI86881MAX,TMI86880LBX,TMI86881MBX,STI3408B,TMI3252SH,TMI32530,TMI3252S,TMI3256,TMI8723N,TMI3259,TMI6402,TMI3258,TMI3278H,TMI2294,TMI86881LCX,TMI97151,TMI3253SHF,TMI8940D,IM2405A,TMI86620LXS,TMI86620LXT,TMI2286D,TMI36010S,TMI8837,TMI3253S,TMIS7722,TMI3267,TMI3253T,TMI9713A,TMI8722,TMI8721,TMI9713C,TMI4101DN,TMI9713E,TMI5330,TMS8007,TMI3273,TMS8008,TMI3388C,TMI3255B,TMI3388B,TMS8003,TMI3388A,TMI86881LBX,TMM8726-Q1,TMI86881MDX,TMI3352A,TMI86881LAX,TMIS1196,TMI3278,TMI3254S,TMI8723,TMI3286,TMI5102,TMI7303B,TMI4012DD,TMI6267AH,TMI7303A,TMI8876Q,TMI4012DC,TMI86820LXS,TMI7327B,TMI4012DF,TMI5101,TMI7327A,TMI4012DE,TMI3281,TMI7303D,TMI4012DB,TMI7303C,TMI4012DA,TMI3280,TMI9290A,TMI4011C,TMI4012DT,TMI4011B,TMI4012DS,TMI4011A,STI3452HFI,TMI7205B-Q1,TMI4012DP,TMI4012DR,STI3508C,TMI4012DQ,TMI4012DL,TMI4012DK,TMI4012DN,TMI4012DM,TMI4012DH,IM2403A,TMI4011E,TMI4012DJ,TMI4011D,TMI4012DI,TMI62033,TMI9713,TMI5111,IM2413N,TMI3171,TMI4021,IM2413P,TMI86881LDX,TMI4022C,TMI4010A,TMI4022B,TMI4022A,TMI2605S,TMI3254SF,IM6001,TMI36031R,TMI86820LXT,TMI4022D,TMI7325B,TMI8876,TMI85120,TMI85121,TMI7301,TMI4156,TMI5120,TMI9608,TMI8870,TMI3181,TMI2293Q,TMI3286B,TMI86880HBX,TMI3273T,TMI36030R,TMI3253TH,TMI8460SP,TMI9723,TMI7302A,TMI7326B,TMI7326A,TMI6220,TMI7302D,TMI3253TF,IM2423P,TMI2282L,TMI86880HAX,STI3452HF,TMI3253SH,TMI8262Q,IM2406,IM2404,IM2405,IM2403,STI3508CB,TMI3408,TMI31601F,TMI32120,TMI5700,STI3411A,TMI4056DH,TMI86630LXT,TMI86630LXS,TMI8512-Q1,TMI6809,TMI6411-XXDA-Q1,TMI6803,TMI3411,TMI3410,TMI3412,TMI4056EH,TMI7604R,TMIP3120,IM7002X,TMI8420-Q1,TMI3421,TMI6810,TMS8525,TMI9130I,TMI9130E,TMI9130F,TMI31602F,STI8036B,TMI31602H,TMI3113H2,STI3453FI,TMI2283QE,TMI86820HXT,TMI86820HXS,TMI3256B,TMI6411-XXTB-Q1,IM2605,TMI3341C,IM2603,IM2600,TMI8260DP,TMI9130C,TMI9130D,TMI86880MAX,TMI9130A,TMI9130B,TMI32560,TMI32561,TMI8D100,TMI8837S,TMI3255S,TMI8150B,TMI3255T,TMI3451,TMI3257I,TMI3112H,TMI3331,TMI2243,TMI3452,TMIP3130,TMI3273TF,TMI3112F,TMI3342B,TMIS1857,TMI86810S,TMI86810T,TMI3459,TMI3256S,TMI33421,TMI3455,TMI2245,TMI3244T,TMI3341,TMI3101,TMI3343,TMI3342,TMI86810D,TMI3113B,TMI3343B,TMI3331A,TMI3101C,TMI3113D,TMI3343C,TMI3101D,TMI3125F,TMI3343D,TMI8260FP,TMI86880LAX,TMI8122-Q1,TMI86880MCX,TMI33431,TMI2242D,TMI3108,TMI2242E,TMI8913,TMI3344,TMI8920,TMI3351,TMI6402T,TMI3112,TMS8601,TMI88225,TMI4151AN,TMI86880MDX,TMI86880MBX,TMI3359,TMI2243D,TMI3113,TMI8921,TMI8135,TMI6411-XXTA,TMI6411-XXTB,TMI8130,TMI6411-XXTD,TMI6411-XXTE,TMI6411-XXTF,TMI6056D,TMI39610,TMI6250I,TMI8264,TMI8263,TMI8262,TMI8261,TMI8140,STI9287C,STI9287B,TMI8038,TMI8037,TMI6283H,STI3452I,TMI8152,TMI8151,TMI8270,TMI8721-Q1,TMI4151DN,TMI6260C,TMI6260D,TMI6030D,TMI6030C,TMI6260A,TMS8203E,TMI8160,STI8036,TMI6261C,TMI6261B,TMS8201E,TMIS7702C,TMI8230S,TMI86600XT,TMI8720-Q1,TMI86600XS,TMI97153A,TMI97153B,TMI97153C,TMI3411P,TMI3411B,TMI3108K,TMI71301,TMI34595,IM2423,TMF82124-Q1,TMI7608S,TMI7608R,TMI4012SC,TMI4012SB,TMI4012SE,TMI4012SD,TMID23513,TMI4012SA,TMI5700A,TMI6050B,TMI32080,STI9287CA,STI3508,TMI8085,TMI6201A-XX,IM2415,TMI4012SF,TMI9290,STI9287,TMI5810,TMI2283QED
拓尔微电子股份有限公司简介
描述- 拓尔微电子股份有限公司,成立于2007年,是一家专注于模拟和数模混合IC设计的公司。公司拥有500多款产品,涵盖电源管理、马达驱动、锂电管理、模拟芯片、模组等多个领域。公司业务布局广泛,包括个人消费、智能家居、新能源汽车、通信与安防、工业控制等。拓尔微电子致力于提供一流的芯片解决方案和服务,持续为客户创造最大价值。
型号- TMI4056,TMI8XXX,TMI75823B,TMI75823A,TMI7321,TMI4054,TMI8262Q,IM2406,IM2405,IM2403,TMI4031A,TMI75894,STI3508CB,TMI3408,TMI31601F,TMI4302A,TMI32120,TMI5700,TMI3368X,TMI8423,TMI8421,TMI7332,TMI8420,TMI6240,TMI6241,TMI86620XXX,TMI6263XX系列,TMI4042A,TMI4151A,TMI4151D,TMI6809,TMI3411,TMI3410,TMI8549,TMI8548,TMI4056EH,TMI9404,TMI6011,TMI6030C系列,TMI5122D8,TMI6038D,TMI3255TF,TMI86881,TMI8118S,IM5200,TMI31602H,TMI3113H2,TMI86600XX,TMI4056E,TMI36010,TMI3113H2D,TMI6038,TMI7003,TMI6263AH,TMI8420Q,TMI33431E,TMI3256B,TMI6030,TMS8010,TMI8260DP,TMI33431X,TMI3388X,TMI3252XX,TMI32560,TMI32561,TMI4051D,TMI8837S,TMI3255S,TMI4051A,TMI8150B,TMI3255T,TMI3451,TMI3450,TMI3257I,TMI8720PD,TMI3112H,TMI86620,TMI86880XXX,TMI8340,TMS8020,TMI86810X,TMI6263BH,TMI4302,TMI8260SP,TMI3244T,TMI3341,TMI3181A,TMI6401T,TMI3343,TMI6050U系列,TMI3342,TMI8113,TMI36030,TMI3181D,TMI4301XX,TMI8110,TMI3113B,TMI8230,TMI3343B,TMI6050系列,TMI6050,TMI97072,TMI3113D,TMI5130A,TMI97073,TMI3408D,TMI3408C,TMI8920D,TMI8260FP,STI8070X,TMI3408F,TMI33431,TMI3344,STI3453,TMI8118,TMI5120-XX,TMI8920,TMI6402T,TMI88222,TMI3112,TMI88221,TMI86620LBS,TMI7003C,TMI8122,TMI7003B,TMI83210,TMI8120,SIT8036,TMI86600,TMI86620LBT,TMI86881MAT,TMI6240S,TMI86881MAS,TMI97053,TMI3252SHF,TMI3359,TMI6241A,TMI3113,TMI6241D,TMI8921,TMI8113S,TMI8130,TMI97052,TMI4071D,TMI3125,TMI4071A,TMI5302,TMI32520,TMI8180A,TMI3494,TMI6401,TMI39610,TMI3255,TMI3493,TMI3492,TMI8263,TMI8262,TMI8140,TMI8261,TMI86600BT,TMI86600BS,TMI3252T,TMI6050B系列,TMI32530,STI9287C,STI9287B,TMI3256,TMI6402,TMI3258,TMI6403,TMI8037,TMI6283H,STI3452I,TMI8152,TMI8151,TMI3252XX系列,TMI86810,TMI97151,TMI3386X,TMI8940D,TMI6260C,TMI6260D,TMI2286D,TMI3253XX,TMI8837,TMI3253T,TMI6030D,TMI6030C,TMI6260A,TMI3255B,TMI3388A,TMI8160,TMI3255F,TMI4101A,TMI6XXX,TMI4101D,TMI6261B,TMI8723,TMI3286,TMI5102,TMI7303B,TMI8876Q,TMI7303A,TMI7327B,TMI5101,TMI7327A,TMI6030系列,TMI3281,TMI9708,TMI7303D,TMI7303C,TMI6030D系列,TMI6038系列,TMI8230S,TMI97153X,SIT2122,TMI97121,STI3508C,TMI9713,TMI3411P,TMI4021,TMI3411B,TMI4022C,TMI6325,TMI8876,TMI7302,TMI7301,TMI8870,TMI3181,TMI6050I系列,TMI3286B,TMI3253XX系列,TMI8460SP,TMI3191-XX,TMI6050B,TMI7205B,TMI32080,TMI6220,STI9287CA,TMI6050I,STI3508,TMI8085,TMI8263Q,TMI6201A-XX,TMI8080,TMI6201A,TMI97210,TMI6050U,TMI7325X,STI9287,TMI5810,TMI6263XX
RN5T569系列AEC-Q100 2级可编程电源管理IC,适合汽车应用
描述- RN5T569是一款适用于汽车应用的电源管理多通道集成电路(PMIC),提供高效率降压DCDC转换器、低 dropout稳压器、GPIO、中断控制器和I2C总线接口。该芯片可通过内置OTP内存定制电源电压和开关序列,支持动态电压缩放、热关断功能、过流保护和看门狗定时器。
型号- RN5T569XX-E4-#E,RN5T569 SERIES,RN5T569
【应用】集成电感的降压DCDC芯片IM6001助力车载DCDC设计,5V转3.3V效率高达93%
车载DCDC产品辅助电源中主控芯片供电一般采用5V转3.3V,之前不少设计会采用线性稳压器或低压DCDC设计,但以上两种方案分别存在效率低和布板面积过大问题,本文推荐拓尔微集成电感同步降压芯片IM6001。
【选型】拓尔微降压DCDC芯片TMI3253系列可兼容TPS563201,参数基本一致
由于国产化战略,越来越多的客户需要选型国产的芯片用于替代或设计,给客户推荐了拓尔微的TMI3253T系列产品,是原厂的主推型号,可与TI的TPS563201相兼容。
拓尔微电子DC/DC开关转换器选型表
拓尔微电子提供以下技术参数的DC/DC开关转换器选型,高达2.5MHz开关频率,2.5V~40V超宽输入电压范围,0.8A~10A输出电流。
产品型号
|
品类
|
VIN Range(V)
|
IOUT(A)
|
Switching Frequency(Hz)
|
VFB(V)
|
Iq(μA)
|
HSFET Rds (on) (Ω)
|
LSFET Rds(on) (Ω)
|
Control Mode
|
Functions
|
Package
|
Status
|
TMI3331
|
高压Buck转换器
|
8V~30V
|
3A
|
130kHz~500kHz Adj
|
0.8V
|
1000μA
|
0.08Ω
|
0.06Ω
|
CM
|
FPWM External COMP./Adj SS
|
ESOP8
|
MP
|
选型表 - 拓尔微电子 立即选型
【IC】超快动态响应60V高耐压,异步降压DCDC转换器TMI36010/36030,应用场景更广泛
拓尔微电子新推出电源管理芯片解决方案,发布60V 1A/3A系列的高耐压异步降压DCDC转换器——TMI36010/36030,具有高效稳定、动态响应快、低纹波三大优点,配合拓尔微PoE PD芯片,可提供完整BOM解决方案。
拓尔在智能清洁行业的BOM解决方案
描述- 拓尔微电子提供智能清洁设备BOM解决方案,涵盖扫地机和洗地机。方案包括电源管理、马达驱动、传感器和锂电池保护等关键组件。产品特点包括高集成度、低功耗、高可靠性,并提供特色物料推荐,如TMI8876/8180A/8080/8110/8122系列马达驱动IC。
型号- TMI8920系列,TMI33431E,TMI6030,TMI8130,TMI85303,TGZDR01,TMIS7702,TMI8122系列,TMIS7701,TMI8837S,TMI8920D系列,TMI4051A,TMI8180A,TMI8913系列,TMI3112H,TMI4101,TMI86620,TMI6240,TMI3493,TMI8870系列,TMI8180A系列,TMI3492,TMI8876系列,TMI8140,TMI86820,TDC7200,TMIM7303,TGZTA01,TMI4302,TMI8723N,TMI8876,TMI3181A,TMI3342,TMI6011,TMI87301,TMI8870,TMI8110,TMI8230,TMI86810,TMI3408C,TMI8920D,TMI8940D,TMIS770X,TMI3408F,TGZDM01,TMI33431,TMI8837,TMI8913,TMI8920,TMI86880,TMI86881,TMI6220,TMI8123,TMI7003C,TMI8122,TMI83210,TMI86600,SIT8997A,TMI8080,TMI8080系列,TMI6050U,TGZCM02,TGZCM01,TMI8110系列,TMI8940D系列,TMI5810,TMI8723
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可定制变压器电压最高4.5KV,高频30MHz;支持平面变压器、平板变压器、OBC变压器、DCDC变压器、PLC信号变压器、3D电源、电流变压器、反激变压器、直流直流变压器、车载充电器变压器、门极驱动变压器等产品定制。
最小起订量: 100000 提交需求>
Ignion可支持多协议、宽频段的物联网天线方案设计,协议:Wi-Fi、Bluetooth、UWB、Lora、Zigbee、2G、3G、4G、5G、CBRS、GNSS、GSM、LTE-M、NB-IoT等,频段范围:400MHz~10600MHz。
最小起订量: 2500 提交需求>
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