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[导读]Accelerating development of compact and reliable fans and pumps built with energy-efficient motors, STMicroelectronics has introduced the PWD5T60 three-phase driver with a ready-to-use evaluation board that supports flexible control strategies.

High-voltage power stage with space-efficient evaluation board for smaller, tougher motor drives

高压功率级,配备紧凑型评估板,适用于更小巧、更坚固的电机驱动器


Accelerating development of compact and reliable fans and pumps built with energy-efficient motors, STMicroelectronics has introduced the PWD5T60 three-phase driver with a ready-to-use evaluation board that supports flexible control strategies.

为加快紧凑、可靠型风扇和泵产品(采用节能电机)的开发,意法半导体推出了PWD5T60三相驱动器,该驱动器具有支持灵活控制策略的即用型评估板。

Suited to applications up to 500V, the PWD5T60 integrates a gate driver and six power MOSFETs with RDS(ON) of 1.38Ω, enabling the device to achieve an outstanding energy to area rating. Zero-drop bootstrap diodes are also built-in, requiring minimal external components to complete the circuit in only 30% of the board area of an equivalent driver built with discrete components. The propagation delays of high-side and low-side MOSFETs are closely matched, which eliminates cycle distortion and maximizes flexibility to set the operating frequency for optimum response and energy efficiency.

PWD5T60适用于高达500V的应用,集成了一个栅极驱动器和六个功率MOSFET,RDS(ON)为1.38Ω,能够实现出色的能量面积比额定值。零压降自举二极管同样内置,只需极少的外部组件,即可在等效驱动器(由分立器件构建)30%的板面积内完成电路。高边/低边MOSFET的传播延迟紧密匹配,消除了周期失真,并能显著提高设置工作频率的灵活性,以实现理想的响应和能效。

The EVLPWD-FAN-PUMP evaluation board, released at the same time, helps developers quickly explore the value this driver can deliver in projects up to 100W. The board combines the PWD5T60 with an STM32G0 microcontroller (MCU) that can handle field-oriented control (FOC) or 6-step control of permanent magnet synchronous motors (PMSMs) and brushless DC (BLDC) motors. With configurable single or three-shunt sensing and leveraging the PWD5T60’s high feature integration to achieve a compact, circular form factor, the board is optimized for use with fans and pumps. The board also features a power-supply stage to generate 12V and 3.3V supply voltages for the application and comes with a complete AC line filter at the input.

同步发布的EVLPWD-FAN-PUMP评估板可帮助开发者快速探索该驱动程序在高达100W的项目中可提供的价值。该板将PWD5T60与STM32G0微控制器 (MCU) 相结合,可处理永磁同步电机 (PMSM) 和无刷直流 (BLDC) 电机的磁场定向控制 (FOC) 或6步控制。为搭配风扇和泵使用,意法半导体通过可配置的单分流或三分流传感,专门对该板进行了优化,并利用PWD5T60的高功能集成来实现紧凑的圆形外形。该板还配有一个电源级,可为应用产生12V和3.3V的电源电压,并在输入端配备了完整的交流线路滤波器。

Featuring on-board bus-voltage sensing, the EVLPWD-FAN-PUMP board helps utilize the PWD5T60’s safe design that provides undervoltage lockout (UVLO) for each bootstrap section to prevent operation in dangerous or low-efficiency conditions. Engineered for robustness, the PWD5T60 also features cross-conduction prevention with interlocking and pre-programmed default deadtime to ensure failsafe protection against shoot-through currents. In addition, excellent below-ground robustness ensures faultless performance.

EVLPWD-FAN-PUMP板具有板载总线电压传感功能,有助于利用PWD5T60的安全设计,为各自举部分提供欠压锁定 (UVLO),以避免在危险或低效条件下运行。PWD5T60专为打造稳健性而设计,具有互锁和预编程默认死区的防交叉传导功能,以确保对击穿电流的故障安全保护。此外,其出色的地下稳健性也保证了出色的无故障性能。

The PWD5T60 has a smart shutdown feature that uses a comparator for fast-acting overcurrent prevention. The output turns off immediately when a fault is detected, while the subsequent output-disable duration is programmed by connecting a capacitor and optional pull-up resistor to a dedicated pin. The turnoff response is unaffected by these components, letting product developers optimize the duration to allow time for faults to clear while always ensuring instant turn-off.

PWD5T60具有智能关机功能,可通过比较器来快速防止过电流。当检测到故障时,输出会立即关闭,随后将电容器和上拉电阻器(可选)连接到专用引脚,以此来对输出禁用持续时间进行编程。关闭响应不受此类组件的影响,让产品开发者得以优化持续时间,以便有充足的时间来清除故障,并确保关闭的即时性。

The driver has a wide input supply voltage range from 9V to 20V for optimum flexibility, while CMOS/TTL-compatible logic inputs down to 3.3V simplify interfacing with a host controller.

该驱动器具有从9V到20V的宽输入电源电压范围,可实现出色的灵活性,而低至3.3V的CMOS/TTL兼容逻辑输入则简化了与主机控制器的接口连接。

The PWD5T60 is in full production and available in a compact 12mm x 12mm VFQFPN package only 0.95mm high, from $3.28 for orders of 1000 pieces.

PWD5T60现已全面投产,采用紧凑型12mm x 12mm VFQFPN封装(高度仅0.95mm);千片起订单价3.28美元。

The EVLPWD-FAN-PUMP evaluation board is available now from the eSTore, at the budgetary price of $102.00. The board delivers plug-and-play convenience leveraging FOC and 6-step control firmware in the X-CUBE-MCSDK motor-control software development kit available free of charge at st.com.

EVLPWD-FAN-PUMP评估板现可从电子商城购买,建议零售价102.00美元。该板利用X-CUBE-MCSDK电机控制软件开发套件中的FOC和6步控制固件提供即插即用的便利性,该套件可在st.com免费获得。

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