【应用】国产GaN驱动器SGM48520助力激光雷达设计,传播延迟低至2.5ns
随着工业的快速发展,人类迎来智能化、自动化时代,例如汽车上面也出现了很多智能化的辅助功能,如自动泊车,L3 L4自动无人驾驶的发展趋势,激光雷达的高精度、响应快成为领域焦点。而激光雷达的组成由激光发射器、接收器、扫描光学、信号处理器构成。
图1 激光雷达工作原理示意图
如上图所示,激光雷达(LiDAR)属于一种遥感技术,工作原理是通过GaN的高频开关来激发激光二极管,更高的脉冲电流峰值可探测更远的距离,较窄的脉冲宽度相当于具有更高分辨率,脉冲光发射出去通过测量反射回来的时间确定物体的位置和距离,激光作为光源,即使在距离远的地方,也能测量出小光斑的距离,因此GaN用于激光雷达具有非常大的优势。氮化镓功率场效应晶体管和GaN驱动IC的出现,使得激光雷达的性能变得更为容易实现,与过去的硅基MOSFET技术相比,GaN FET的性能有了大幅提高。在相同的峰值电流水平,GaN FET后者的转换速度更快,因此GaN的超高性能,电感极低的芯片级封装使eGaN FET成为脉冲激光驱动器的理想开关。
本文重点介绍国产圣邦微(SGMICRO)的GaN驱动器SGM48520助力激光雷达发射链路中GaN的驱动设计,它是一款单通道、高速、栅极驱动器,5V电源电压,应用于包括激光雷达、飞行时间(TOF)、面部识别和任何涉及低侧驱动器的功率转换器。 TDFN封装的SGM48520提供4A拉电流和灌电流输出能力。 另外WLCSP封装的输出电流能力也较好。 带有最小寄生电感的封装和引脚将上升和下降时间减少到400ps, 2.5 纳秒的极快传播延迟与最小的容差和变化允许在开关频率高达60Mhz下高效运行。
图2 激光雷达功率发射链路框图
对于GaN器件栅极驱动器选型,需要注意以下几点:
1、有足够的驱动电流能力,ns级的传播延迟,高达MHZ的开关频率,带有欠压、过热保护、电路设计简单;
2、GaN的Vgs电压比较窄,一般是在±6V,设计驱动电压是要留有足够的余量,避免栅栅极出现过压的情况;
3、栅极驱动器的设计应尽量减小VDD电源电容与漏极和源极器件之间的栅极功率环路电感。这将栅极驱动器的上升时间减至最少,并使得驱动器的di / dt可以最大化;
图3 SGM48520封装以及引脚定义图
综上所述,国产SGMICRO的GaN驱动器SGM48520助力激光雷达设计具有以下几点优势:
1、驱动电流大,单通道大电流,4A的拉电流和灌电流输出能力,保证GaN FET可靠开通和关断;
2、2.5ns 的传播延迟与最小的容差和变化允许在高频率下高效运行,开关频率高达60MHZ;
3、带有最小寄生电感的封装和引脚将上升和下降时间减少到400ps,并限制其振铃避免误导通;
4、0.8mm × 1.2mm WCSP 封装可最大限度地降低栅极回路电感并最大限度地提高高频功率密度要求;
5、在过载或故障情况下,该驱动器集成了欠压锁定(UVLO)和过温保护(OTP),提供系统可靠性;
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SGMICRO(圣邦微)信号链和电源管理芯片选型指南
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.
型号- 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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思瑞浦(3PEAK)车规芯片选型指南(英文)
描述- Established in 2012, 3PEAK was listed on the Shanghai Science and Technolog y Innovation Board on September 21, 2020. The company is committed to the research and de velopment of high-performance, high-quality, and highly reliable integrated circuit products, including signal chains, power analog chips, mixed-signal front-ends, and embedded processors to provide customers with all-around solutions
型号- LM2904A-VS1R-S,TPL8032ADQ,TP1562AL1-SO1R-S,TPM27524Q-SO1R-S,TPA2031Q,TPT1042V-SO1R-S,TPL803133Q-DF6R-S,TPT7742-SOBR-S,TPH2861-DF4R-S,TPR6040F30-S3TR-S,TPM2025Q-FC1R-S,TPT1042Q-SO1R-S,TPA1881Q-S5TR-S,TPR6040F33-S3TR-S,LM2902A-TS2R-S,TPR33XX,TPA8001-SOAR-S,TPA8003-SOAR-S,TP1564AL1-SO2R-S,TPL905236-S5TR-S,TP2262L1-SO1R-S,TPT1043Q-SO2R-S,TPT1051VQ-DF6R-S,TPR6040FXX,TPT1051Q-SO1R-S,TPT774X,TPL803133Q-EV1R-S,LM2903DQ-SO1R-S,TPT1051Q-DF6R-S,TPL8652FQ-ES1R-S,LM2903A-SO1R-S,TPT1051VQ-SO1R-S,TPR3330-S3TR-S,TPT7741F-SO3R-S,TPL803133Q-ST4R-S,TPT7741F-SOBR-S,TPL803450Q,TPL803450Q-EV1R-S,TPR3312-S3TR-S,TPL803150Q-ST4R-S,TPL905218-S5TR-S,TPL905233-S5TR-S,TPT7720-SO1R-S,TPR6040F25-S3TR-S,TPT1043Q-DFKR-S,TPL905215-S5TR-S,TPR6040F20-S3TR-S,TPL8651Q-ES1R-S,LM2901A-SO2R-S,TPT1145NQ-SO2R-S,TPL9052XX,TPL8031XXQ,TPA2644-SO2R-S,LM2904A-TS1R-S,TPM650XAQ,TPL8151ADQ-ES1R-S,TPL865XQ,TPT772X,TPT1042Q-DF6R-S,TPT7721-SOBR-S,TPT1044V-SO1R-S,TPT1145Q-SO2R-S,TPR3325-S3TR-S,TPR431B-S3TR-S,TPR6040F50-S3TR-S,TPW3188Q,TPT7742F-SOBR-S,TPA1882Q-VR-S,TPR3320-S3TR-S,TPL910ADJQ,TPT7740F-SO3R-S,TPC5120Q-TS7R-S,TPL803150Q-DF6R-S,TPL910ADJQ-DF6R-S,TPV8368SAQ,TPA1882Q-SO1R-S,TP1561AL1-S5TR-S,TPA5561Q-S5TR-S,TPL905225-S5TR-S,TPL905228-S5TR-S,TPT7741-SSAR-S,TPL8151ADQ,LM2902A-SO2R-S,TP2261L1-S5TR-S,TPA2031Q-S5TR-S,TPM2025Q,TPL803150Q-EV1R-S,TPM27524Q-DF4R-S,LM2903A-TS1R-S,TPV8368SAQ-S6TR-S,TPT1145NQ,TP1562AL1-VS1R-S,TPL803133-ST4R-S,TPT104XQ,TPR3333-S3TR-S,TPT1042VQ-SO1R-S,TPL905230-S5TR-S,LM2903A-VS1R-S,TPM27524Q-EV1R-S,TPR6040F40-S3TR-S,TPM27524Q,TPT7721-SO1R-S,LM2901A-TS2R-S,TPM6501AQ-S5TR-S,TPL905212-S5TR-S,TPT7720F-SO1R-S,TPA188XQ,TPT1145NQ-DFKR-S,TPR431B,TPM6505AQ-S6TR-S,TPT7741-SOBR-S,TPA5561Q,TPT1051VQ,TPT1042VQ-DF6R-S,TPL8032ADQ-ES1R-S,LM2904A-SO1R-S,TPW3188Q-TS3R-S,TPC5120Q,LM2903DQ,TPR3340-S3TR-S
TPM2025/TPM2025Q Automotive Dual-Channel Ultra-Highspeed GaN Predriver
型号- TPM2025,TPM2025-FC1R,TPM2025Q-FC1R,TPM2025Q
【应用】圣邦微SGM48520可驱动GaN,助力3D避障相机设计,频率高达60MHz,抗干扰能力强
3D相机又名深度相机,可用于探测三维空间的距离信息,它主要应用在工业机器人(如AGV小车、机械手等)和消费(如智能门锁、扫地机等)类市场,目前主要有结构光、双目和TOF三大方案。三大类方案各有各的特点,一般是根据应用类别、产品价格选择对应的方案。
【IC】圣邦微电子最小脉冲宽度1ns的车规级低侧GaN和MOSFET驱动器SGM48521Q
圣邦微电子推出SGM48521Q,一款最小脉冲宽度为1ns的 5V、7A/6A车规级低侧GaN和MOSFET驱动器。该器件可应用于汽车应用、激光测距系统、5G 射频通信系统、无线充电系统和GaN DC/DC转换系统。
【视频】EPC发挥其GaN技术优势,将帮助实现高效能电机驱动应用和DC/DC转换器
型号- EPC9173,EPC2302,EPC2304,EPC2306,EPC2305,EPC2308,EPC2307,EPC23102
【IC】EPC新推基于GaN FET的150A电机驱动器EPC9186,适用于电动出行、叉车和大功率无人机
EPC新推EPC9186,这是一款采用EPC2302 eGaN®FET的三相BLDC电机驱动逆变器。EPC9186支持14V~80V的宽输入直流电压。大功率EPC9186支持电动滑板车、小型电动汽车、农业机械、叉车和大功率无人机等应用。
SGM48521 5V, 7A/6A Low-Side GaN and MOSFET Driver with 1ns Pulse Width
型号- SGM48521XG/TR,SGM48521XTDI6G/TR,SGM48521
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可定制风扇尺寸覆盖18x18x04mm~165x165x25mm,随散热器大小而定制;风扇转速范围:1000 RPM~16500 RPM。支持DC风扇,直流风扇轴流风机,鼓风机以及电脑笔记本风扇等产品定制。
最小起订量: 500pcs 提交需求>
可定制连接器的间距范围1.25mm~4.5mm、单列/双列列数、焊尾/表面贴装/浮动式等安装方式、镀层、针数等参数,插拔寿命达100万次以上。
最小起订量: 1 提交需求>
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