【应用】GaN驱动器SGM48017助力激光雷达设计，传播延迟低于30ns，灌电流输出高达7.6A

时间： 2022-06-18 来源：世强

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随着工业的快速发展，人类迎来智能化、自动化时代，例如激光雷达的应用它是一种对目标物件照射激光脉冲来测量物件的距离的方法。

图1 激光雷达工作原理示意图

如上图1所示，其工作原理是通过GaN的高频开关来激发激光二极管，Gan器件具有更高的脉冲幅度，可以实现更远的距离，较窄的脉冲宽度相当于具有更高分辨率，在激光雷达的应用上硅基GaN FET相比MOSFET的性能有了大幅提高，使得激光雷达的性能变得更为容易实现，针对GAN器件的驱动需要选择一款传输延迟比较低的器件，才能满足GAN高频窄脉冲的应用。

本文重点介绍国产圣邦微（SGMICRO）的GaN驱动器 SGM48017助力激光雷达发射链路中GaN的驱动设计，SGM48017是一款高速功率MOSFET/GaN栅极驱动器，具有保护功能，如过电压、热关机保护（TSD）、欠电压闭锁和短路保护。超小型SOT-23-5封装，较宽的工作温度范围-40℃到+125℃。

图2 激光雷达功率发射链路框图

如上图2所示，SGM48017用于充电回路的MOS驱动，另外就是放电回路的GAN驱动，两个驱动复用一颗，减少BOM的多个型号，且能降低BOM成本，对于GaN器件栅极驱动器选型，需要注意驱动芯片的驱动电流能力，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；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；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 SGM48017封装以及引脚定义图

综上所述，国产SGMICRO的GaN驱动器SGM48017助力激光雷达设计具有以下几点优势：

1、驱动电流大，6.4A的拉电流和7.6A灌电流输出能力，保证GaN FET可靠开通和关断；

2、低于30ns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，满足高频应用；

3、具有更多的保护功能，如过电压、热关机保护（TSD）、欠电压闭锁和短路保护等，提高系统可靠性；

4、超小的SOT-23-5封装，可最大限度地降低栅极回路电感，并最大限度提升高频功率密度要求。

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【IC】圣邦微氮化镓驱动用于激光雷达，开关频率高达60MHz，传播延迟2.5ns ｜视频

圣邦微新推GaN驱动SGM48520XG/TR用于激光雷达，开关频率高达60MHz，传播延时2.5ns。

2023-03-10 - 新产品代理服务技术支持采购服务

无锡明芯微电子

描述- 无锡明芯微电子有限公司提供多种类型的电子产品，包括保护产品、高速驱动芯片、工业和汽车用芯片。其产品涵盖了电子保险丝、反激电源芯片、隔离电源芯片、清洁电器和消费电子等领域。产品选型表中详细列出了各种型号的产品特性，如封装类型、工作电压、电流限制、静态功耗等关键参数。此外，还介绍了GaN驱动芯片、ACDC转换SSR产品、同步整流产品、RS485/RTC时钟芯片、MOSFET等多种产品及其规格和应用场景。

型号- MX1313AS,MXPP8-30-1250,MX25924,MX8563EMA,MX8015,MX8653,MX74610SS,MX10T03AHT,MX1217E6,MX51712YB,MX1110T,MX25947ES,MX44273,MX3485,MX6875,MX6605Q,MX5014S,MX5069MS,MX27524ES,MX74700T,MX26631S,MX7219T,MX8015DC,MX523L18BTE-A,MX5052SL,MX10010,MX6288T,MX51728YB,MX16171T100,MX5134T,MX5015D22,MX1025D22,MX74610T,MX1210H,MX523L50BTE-A,MXPP6-3K6110,MX3485E,MX523LXX系列,MX1210E,MX523L18BTE-B,MX1112S,MX8563ESA,MX22917,MX3502,MX3501,MX5050TL10R25,MX1118AS,MX51718YB,MX16171D,MX25924D33,MX3502S,MX6505,MX5052S,MX1111S,MX2660,MX27524S,MX6501,MX4007ALR,MX51725YB,MX1210,MX74610,MX51710YB,MX51733YB,MX3019C,MX5069,MX5050L,MX517LXX,MX1323AS,MX517LXX系列,MX27517,MX1217AS,MX1210P,MX5050T,MXPP8-30-1103,MX1313,MX1020W,MX1210S,MX1210T,MX3501T23,MX1312AS,MX523L18BTE,MX51708YB,MX2734,MX5114T,MX22917T,MX25947,MX1025DFN,MX7N65F,MX523L33BTE,MX51730YB,MX7N65D,MX1020CSP,MX10010S,MX1112AS,MX51711YB,MX1310T,MX51715YB,MX5014D22,MX26631DL,MX523LXX,MX523L50BTE,MX75176,MX3085E,MX5069D,MX1218AS,MX523L33BTE-A,MX8563,MX523L33BTE-B,MX6501T,MX10T01AHTL,MX5114D,MX5114E

2024/8/6 - 明芯微 - 选型指南代理服务技术支持采购服务

SC8901 5V 7A/5A 低侧 GaN 和 MOSFET 驱动器

描述- SC8901是一款低侧GaN和MOSFET驱动器，具有超快传播延迟和最小脉冲宽度，适用于激光雷达、飞行时间激光驱动器、面部识别等应用。产品采用WLCSP-6B封装，提供UVLO和OTP保护功能。

型号- SC8901KFLUMY,SC8901

2023/11/03 - 芯炽科技 - 数据手册 - V1.2 代理服务技术支持采购服务查看更多版本

SGM DFAE训练负荷开关-OVP-Supervisor

描述- 本文详细介绍了高性能模拟负载开关及其在电源管理、监控、复位等系统中的应用。内容涵盖负载开关的定义、工作原理、数据手册参数、应用场景、保护特性、功耗和热管理等方面。同时，文章还列举了多种负载开关产品及其特性，如SGM25062、SGM2575A、SGM2566C等。

型号- SGM2594CD,SGM48757,SGM48111,SGM8544,SGM853,SGM452,SGM450,SGM2564,SGM2522A,SGM2594BD,SGM812C,SGM2040-3.3,SGM48220,SGM836,SGM61220,SGM8773,SGM2591B,SGM8252,SGM2591C,SGM8770,SGM2591A,SGM4578,SGM2553,SGM2036,SGM2575A,SGM809B,SGM48017,SGM2592AD,SGM803B,SGM2580F,SGM259X 系列,SGM2580G,SGM2580D,SGM2580E,SGM61430,SGM2580K,SGM2580I,SGM2592C,SGM2580B,SGM2580,SGM2580C,SGM2592A,SGM8713A,SGM2592B,SGM2580A,SGM8713B,SGM3157,SGM2576B,SGM2588,SGM66051,SGM2207,SGM802B,SGM25701,SGM61280,SGM40642,SGM25661,SGM2572,SGM7220,SGM2571,SGM485211,SGM4995,SGM2574,SGM2210,SGM8958,SGM2576,SGM706B,SGM2212,SGM25701B,SGM8558,SGM72204,SGM7227,SGM8955,SGM25701A,SGM7229,SGM8956,SGM809,LM2904,SGM2591AD,SGM803,SGM804,SGM2592CD,SGM61135,SGM801,SGM802,SGM40666S,SGM2594A,SGM810,SGM2594B,SGM811,SGM41518,SGM41512,SGM2594C,SGM6602,SGM4027,SGM2521,SGM259X,SGM7200X,SGM2523,SGM2566B,SGM2522,SGM2566C,SGM3699,SGM2525,SGM2578A,SGM2566A,SGM2528A,SGM41511,SGM61020,SGM2592BD,SGM48541,SGM2590,SGM2592,SGM2591,SGM2594,SGM2593,SGM2596,SGM3206,SGM37892,SGM4535,SGM2567A,SGM811C,SGM2594AD,SGM851A,SGM851B,SGM2539,SGM708,SGM829,SGM41542,SGM41543,SGM42633,SGM827,SGM706,SGM828,SGM851C,SGM825,SGM61232,SGM826,SGM48211,SGM2591CD,SGM823,SGM824,SGM2572A,SGM40666AS,SGM2572B,SGM2584A,SGM2572C,SGM431,SGM460141,SGM2528B,SGM2528C,SGM2028,SGM3756,SGM810B,SGM2527,SGM2526,SGM48524D,SGM818,SGM816,SGM25062,SGM814,SGM2591BD,SGM815,SGM812,SGM8270N,SGM821,SGM8967-1,SGM40666BS,SGM8477,SGM41528,SGM8631,SGM708-S,SGM820,SGM708-T,SGM8197,SGM708-R,SGM8750,SGM4066X,SGM708-M,SGM6610,SGM708-L,SGM2531,SGM2521A,SGM2534,SGM708-J,SGM2533

2023/3/25 - SGMICRO - 商品及供应商介绍代理服务技术支持采购服务

明芯微（maxinmicro）芯片/理想二极管/高侧开关/比较器/控制器/电子保险丝选型指南

描述- 无锡明芯微电子有限公司是江苏省“双创”创新创业领军人才企业，是“滨湖之光“创业领军团队企业，无锡市雏鹰企业和无锡市专精特新企业，在无锡和上海有研发中心，是有专业的投资机构和多名有20多年经验的研发团队共同成立创建，研发团队成员来自德州仪器，前国家半导体，美信，昂宝等，专注于AC-DC 副边反激，原边反激，驱动芯片和保护器件的研发和销售。

型号- MX1313AS,MXPP8-30-1250,MX25924,MX8563EMA,MX8015,MX3085,MX8653,MX74610SS,MX1217E6,MX51712YB,MX1110T,MX25947ES,MX44273,MX3485,MX6875,MX6605Q,MX5014S,MX5069MS,MX27524ES,MX74700,MX7219T,MX8015DC,MX523L18BTE-A,MX10010,MX6288T,MX51728YB,MX16171T100,MX5134T,MX5015D22,MX1025D22,MX74610T,MX1210H,MX523L50BTE-A,MXPP6-3K6110,MX3485E,MX523LXX系列,MX1210E,MX523L18BTE-B,MX1112S,MX8563ESA,MX22917,MX3502,MX3501,MX1118AS,MX51718YB,MX16171D,MX25924D33,MX3502S,MX6505,MX5052S,MX1111S,MX2660,MX27524S,MX6501,MX51725YB,MX74610,MX51710YB,MX51733YB,MX3019C,MX5069,MX517LXX,MX1323AS,MX517LXX系列,MX27517,MX1217AS,MX1210P,MX5050T,MXPP8-30-1103,MX1020W,MX1210S,MX1210T,MX3501T23,MX1312AS,MX523L18BTE,MX51708YB,MX2734,MX5114T,MX22917T,MX25947,MX1025DFN,MX7N65F,MX523L33BTE,MX51730YB,MX7N65D,MX1020CSP,MX10010S,MX1112AS,MX51711YB,MX1310T,MX51715YB,MX5014D22,MX26631DL,MX523LXX,MX523L50BTE,MX75176,MX3085E,MX5069D,MX1218AS,MX523L33BTE-A,MX8563,MX523L33BTE-B,MX6501T,MX5114D,MX5114E

2024/5/9 - 明芯微 - 选型指南代理服务技术支持采购服务

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

2023/9/22 - 思瑞浦 - 选型指南 - Rev.2 代理服务技术支持采购服务