MPQ18831
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详情
MPQ18831 是一款隔离式半桥栅极驱动器解决方案。该器件具有高达 4A 的拉电流和 8A 灌电流峰值电流容量,适用于驱动功率开关器件,同时具备短传播延迟和低脉宽失真。
利用 MPS 专有的容性隔离技术,该驱动器可在宽体 SOIC 封装中提供高达 5kVRMS 的隔离电压(符合UL 1577标准)。该器件输入侧和输出驱动器之间的共模瞬态抗扰度 (CMTI) 亦超过 150kV/μs。凭借这些先进的功能,MPQ18831可适用于各种汽车电源应用,同时具备高效率、高功率密度和高稳健性。
MPQ18831 将双通道栅极驱动器集成在单个封装中。每路输出都可以分别接地或连接到正/负参考电压。其副边拓扑可配置为半桥上管 (HS) 或下管 (LS) 驱动器,并由两个独立的输入信号控制。MPQ18831 还提供由外部电阻设置的可调死区时间 (DT),以防止半桥驱动器产生击穿。
该驱动器具备宽原边 VDDI 电源范围,非常适合与 3.3V 或 5V 数字控制器连接。其副边驱动器可接受高达 30V 的电源,而且所有电源电压引脚均具备多种欠压锁定 (UVLO) 保护功能。
MP18831 采用窄体或宽体 SOIC-16 封装(分别为 SOIC-16 NB 或 SOIC-16 WB)、SOIC16-14(3mm 爬电距离)或 LGA-13(5mmx5mm)封装 .
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产品特性和优势
- 双输入半桥驱动器
- 高达 5kVRMS的输入到输出增强隔离(SOIC-16 WB 封装)
- 两个副边驱动器之间具备1850VDC功能隔离(SOIC16-14 WB 封装)
- 两个副边驱动器之间具备1500VDC功能隔离(SOIC-16 NB/WB 封装)
- 两个副边驱动器之间具备700VDC功能隔离(LGA-13 封装)
- 共模瞬态抗扰度 (CMTI) >150kV/μs
- 2.8V 至 5.5V 的输入 VDDI 范围,可与TTL和 CMOS 兼容输入接口
- 高达 30V 的输出驱动电源,且具备多种欠压锁定 (UVLO) 保护选项
- 4A 拉电流/8A 灌电流峰值输出
- 50ns 典型传播延迟,部件之间具备±5ns 短延迟分布
- 重叠保护和可调死区时间 (DT) 控制
- -40°C 至 +150°C 工作结温范围
- 符合 AEC-Q100 等级1认证
- UL 1577 认证:
- SOIC-16 NB 封装:3kVRMS隔离达 60 秒
- SOIC-16 WB 封装:5kVRMS隔离达 60 秒
- LGA-13 (5mmx5mm) 封装: 2.5kVRMS隔离达 60s
- DIN EN IEC 60747-17 (VDE 0884-17):2021-10 认证(待定)
- GB4943.1-2011 CQC 认证(待定)
正在供货产品型号
MPQ18831-8CGY-Z MPQ18831-8CGY-P MPQ18831-8EGY-Z MPQ18831-8EGY-P MPQ18831-A8BGY-Z MPQ18831-A8BGY-P MPQ18831-A8CGY-Z MPQ18831-A8CGY-P MPQ18831-A8EGY-Z MPQ18831-A8EGY-P MPQ18831-8EGYE-Z MPQ18831-8EGYE-P MPQ18831-8CGSE-Z MPQ18831-8CGSE-P MPQ18831-A8BGLU-Z MPQ18831-A8BGLU-P
以 P 和 Z 结尾的零件编号是相同的零件。P 和 Z 仅表示卷筒尺寸
P&Z的含义
MPQ18831 Resources
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ARTICLE
设计高性能、高功率密度车载充电器技术文章电动汽车 (EV) 日益普及,全球性和国家级的各种激励措施层出不穷,更是提高了其性价比(见图 1)。2023 年,电动汽车销量已超过 1300 万辆,其中,纯电动汽车 (BEV) 和插电式混合动力汽车 (PHEV) 的销量较 2022 年增长了 30% 以上。 随着碳中和成为全球宏伟目标,汽车制造商也继续加大电动汽车的研发力度。电动汽车300 英里的续航里程基准不断被超越,达到 400 英里、甚至500 英里。与此同时,大多数插电式混合动力汽车提供的动力系统仅靠电池即可行驶 25 至 50 英里,而且还可以用内燃机作为电池的补充。 电动汽车最受关注的一个方面就是汽车的充电速度,而影响电动汽车在家充电的一个系统则是车载充电器 (OBC)。OBC 可以将用户家中的交流电网电压转换为可以为 EV 或 PHEV 电池充电的直流电压。这些电池通常使用 L1 或 L2 交流充电器充...
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PRODUCT CATEGORY
隔离式栅极驱动器产品类目 -
APPLICATION
车载充电模块(OBCM)应用电动汽车 (EV) 日益普及,其应用已呈指数级增长。车载充电 (OBC) 模块作为电动汽车的一个重要组成部分,决定了车辆连接交流充电器时的最大可能充电速率。全电动汽车的最大充电能力通常在 6.6kW 至 22kW 之间,插电式混动汽车的最大充电能力通常在 3.3kW 至 7.2kW 之间。 MPS 的大型汽车级隔离解决方案中包括了隔离式栅极驱动器、隔离式栅极驱动器电源、数字隔离器、霍尔效应电流传感器和非隔离式 DC/DC 变换器。这些解决方案通过容性隔离来实现高 CMTI 和磁噪声抗扰度,能够满足最严格的高功率规范。 MPS 强大的隔离解决方案可以为下一代车载充电器供电提供所需的一切。
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APPLICATION
直流快速充电站应用随着电动汽车的普及,直流快速充电站也越来越常见。充电站作为主要高速公路沿线和人口稠密郊区基础设施的重要组成部分,可确保电动汽车在长途旅行和日常驾驶期间及时充电。充电站系统通常由多个25kW至75kW的模块组成,可以创建快速充电系统,提供150kW至400kW的功率,并可在最快20分钟内将电动汽车的电池电量从10%充至90%。 MPS 的大型隔离解决方案组合包括了隔离栅极驱动器、隔离栅极驱动器电源、数字隔离器、霍尔效应电流传感器和非隔离 DC/DC 变换器。这些组件可用于偏置和驱动 SiC/IGBT,并通过将变压器集成到芯片级封装中来提供高功率密度。MPS解决方案通过容性隔离来实现高 CMTI 和磁噪声抗扰度,能够满足最严格的高功率规范。 MPS 强大的隔离解决方案能够为下一代直流快速充电站供电提供所需的一切。
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PRODUCT CATEGORY
隔离栅极驱动器产品类目 -
PRODUCT
MPQ18833-AEC1产品具有5.84mm通道间距的隔离式半桥栅极驱动器,符合 AEC-Q100 认证
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MPSCHOLAR
APPLICATIONS & USE CASES OF ISOLATED POWER SUPPLIES IN GATE DRIVINGMPSCHOLARIn a wide variety of applications, ranging from electric automobiles to industrial machinery, variable-speed AC/DC drives play a crucial role in managing the speed and torque of electric motors. Functionality: The speed of an electric motor can be adjusted by these drives by adjusting the power that is provided to them. This is accomplished by modulation techniques such as pulse width modulation ...
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MPSCHOLAR
CHALLENGES AND SOLUTIONS IN DESIGNING ISOLATED POWER SUPPLIES FOR GATE DRIVINGMPSCHOLARThe process of designing an isolated power supply for gate driving involves a unique set of challenges, particularly when it comes to resolving electrical requirements. These issues, which include power output and stability in addition to electromagnetic interference (EMI), call for the development of creative solutions in order to guarantee the effective and dependable operation of gate drivers i...
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MPSCHOLAR
TYPES OF ISOLATED POWER SUPPLIES FOR GATE DRIVERSMPSCHOLARFlyback converters are an essential type of isolated power supply commonly found in gate driver circuits. They are particularly well-suited for applications that prioritize compact size, efficiency, and reliable isolation at lower to moderate power levels. Known for their simplicity and versatility, flyback converters operate by storing energy in a magnetic field during one phase and transferring ...
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MPSCHOLAR
ISOLATED POWER SUPPLY ARCHITECTURESMPSCHOLARCentralized isolated power supply architectures play a crucial role in gate driver applications, offering a streamlined approach to power distribution and isolation that is specifically designed to meet the needs of gate driving requirements. This architecture type centralizes the power supply into a single unit, which then distributes power to different components of the system, ensuring electric...
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MPSCHOLAR
NEED FOR ISOLATED GATE DRIVING POWER SUPPLIESMPSCHOLARFundamental Safety Concerns: Ensuring safety is of utmost importance when it comes to gate-driving power supplies, especially in high-power applications. Isolation is essential for ensuring users' safety and preventing damage to sensitive electronic components caused by high voltage levels or electric shock. Protection Against Direct Contact: Isolation guarantees that there is no direct elec...
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MPSCHOLAR
ISOLATED POWER SUPPLIES FOR GATE DRIVINGMPSCHOLAR -
MPSCHOLAR
CASE STUDY: AN IN-DEPTH LOOK AT A SPECIFIC APPLICATIONMPSCHOLARWithin the context of an advanced electric vehicle (EV) powertrain system, the development of isolated gate drivers is the primary emphasis of this individual case study. Power economy, dependability, and safety are of the utmost importance in the electric vehicle industry, which is a sector that is quickly evolving. The purpose of this in-depth investigation is to demonstrate the significant role...
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MPSCHOLAR
PRACTICAL APPLICATIONS AND USE CASESMPSCHOLARFigure 1: Common Applications of Isolated Drivers Isolated gate drivers, as essential interfaces between control circuits and power electronics are essential components in motor control systems. These drivers are important to the operation of these systems. The power switches, such as IGBTs or MOSFETs are responsible for controlling the speed, torque, and direction of the motor. Their contribut...
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MPSCHOLAR
CHALLENGES IN ISOLATED GATE DRIVERS DESIGNMPSCHOLARThermal management and heat dissipation are two of the most critical issues that arise during the design process of isolated gate drivers. These elements are quite important because temperature has an effect on gate drivers' dependability, performance, and longevity. Heat Generation Sources: In isolated gate drives, the primary sources of heat generation are two different sources, respectively. F...
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MPSCHOLAR
COMPONENTS AND ARCHITECTUREMPSCHOLARPulse-Width Modulation (PWM) Signals: PWM signals play a crucial role in the functioning of isolated gate drivers, particularly in the realm of power electronics. These signals adjust the length of time that power switches (such as MOSFETs or IGBTs) remain in the 'on' state by modifying the width of the pulse while maintaining a consistent frequency. PWM signals play a vital role in the regulation...
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MPSCHOLAR
WORKING PRINCIPLES OF ISOLATED GATE DRIVERSMPSCHOLAREnsuring the safety and integrity of electronic systems is of utmost importance, especially in applications involving high voltages or where electrical isolation is necessary between the control and power stages. Figure 1: Isolated Gate Driver Concept Protecting Control Circuitry: One of the main purposes of isolation in gate drivers is to safeguard the low-voltage control circuitry from the p...
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MPSCHOLAR
INTRODUCTION TO GATE DRIVERSMPSCHOLARGate drivers are essential components in modern electronics. They are specialized circuits that have the important task of controlling the operation of power switches, such as MOSFETs and IGBTs. Their main purpose is to supply the required drive voltage and current to the gate of these power devices. Figure 1: Gate Drive between Microcontroller and Power Transistor Fundamental Role: Gate drive...
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MPSCHOLAR
ISOLATED GATE DRIVERSMPSCHOLAR -
PRODUCT
MPQ18811-AEC1产品隔离式单通道栅极驱动器,符合 AEC-Q100 认证
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PRODUCT
MPQ18851产品汽车级、隔离式、独立双通道栅极驱动器
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PRODUCT
MP18811产品带分离输出的隔离式单通道栅极驱动器
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ARTICLE
安全驱动:用于大功率应用的隔离式栅极驱动器技术文章新的技术与市场趋势不断对功率能力和解决方案尺寸提出更高需求。电动汽车、可再生能源微电网、海量储能和大功率电信应用的发展也对功率密度提出了更高的要求。 以往专用于特定大功率应用的电压和功率水平现在在日常应用中也越来越普遍,这意味着曾经可原谅的性能问题现在也变得无法忍受。这类应用的主要限制传统上来自于电源开关技术,尤其是硅半导体的性能限制。但宽禁带 (WBG) 半导体的出现突破了这个瓶颈,实现了高压、高频的电源变换器设计。 然而,高功率和高速率的结合为设计人员设计变换器带来一系列新的问题。例如,电源转换模块中的高电压与控制模块中的弱小信号电路之间会产生不必要的耦合,本文将主要讨论这种情况带来的危害。 栅极驱动器是很多电源变换器中的常用元件。由于控制电路在低电压下运行,控制器无法提供足够的电力来快速安全地打开或关闭电源开关。因此,来自控制器的信号被发送到可以承受更高功率的栅极驱动器...
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ARTICLE
直流快速充电系统:通过LLC 变压器驱动最大限度提高功率密度技术文章在全世界都致力于实现碳中和的同时,电动汽车 (EV) 也在迅速抢占内燃机汽车的市场份额。 然而,电动汽车存在里程焦虑的问题,用户会担心在不充电的情况下EV能够驾驶多长时间。为了解决这个问题,世界各国的政府都在大力投资EV充电基础设施。 目前在用的EV充电站类型多样,从 1 级/2 级 (L1/L2) 充电站,到可提供高达 400kW 功率的直流快速充电 (DCFC) 站(见图 1)。 EV充电站具体描述如下: 在住宅或工作场所充电,L1/L2就足够了。但对无法长时间充电的用户来说,DCFC 和超级充电站则是必需的,例如长途旅行中的电动汽车,其电池的全部容量都将被利用。 图 2 显示了在全球范围内用于 L1/L2 交流充电站和 DCFC充电站的不同类型连接器。DCFC 很方便,且能够快速补充能量,但其高充电率会比交流充电更快使 EV 电池降级;而L1/L2...
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VIDEO
反激拓扑 VS. LLC 拓扑:高压变换器视频系列视频隔离式栅极驱动器是电源变换器的关键部件,它需要隔离式电源在不突破隔离屏障的情况下提供栅极驱动电压。通常情况下,反激式变换器是这类应用最常用的拓扑之一。然而,最小化绕组间电容导致的漏感增加会削弱原边与副边电感间的耦合,从而导致较大的效率损失,并迫使设计人员选择更大、更昂贵的组件。 新技术的发展证明,LLC 变换器是隔离式栅极驱动器电源的更有效拓扑。这种变换器采用 LLC谐振腔来确保高效的电源转换。它利用变压器产生的漏感作为谐振腔中的谐振电感,从而避免了效率损失。尽管其设计和控制略为复杂,但采用 MPQ18913 等集成 LLC 变压器驱动器不仅可节省大量电路板空间,同时还可大幅降低 BOM 成本。 相关产品详情页 MP18831 MPQ18913
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