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

高壓功率級(jí)，配備緊湊型評(píng)估板，適用于更小巧、更堅(jiān)固的電機(jī)驅(qū)動(dòng)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.

為加快緊湊、可靠型風(fēng)扇和泵產(chǎn)品（采用節(jié)能電機(jī)）的開(kāi)發(fā)，意法半導(dǎo)體推出了PWD5T60三相驅(qū)動(dòng)器，該驅(qū)動(dòng)器具有支持靈活控制策略的即用型評(píng)估板。

Suited to applications up to 500V, the PWD5T60 integrates a gate driver and six power MOSFETs with RDS(ON) of 1.38?, 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適用于高達(dá)500V的應(yīng)用，集成了一個(gè)柵極驅(qū)動(dòng)器和六個(gè)功率MOSFET，RDS(ON)為1.38?，能夠?qū)崿F(xiàn)出色的能量面積比額定值。零壓降自舉二極管同樣內(nèi)置，只需極少的外部組件，即可在等效驅(qū)動(dòng)器（由分立器件構(gòu)建）30%的板面積內(nèi)完成電路。高邊/低邊MOSFET的傳播延遲緊密匹配，消除了周期失真，并能顯著提高設(shè)置工作頻率的靈活性，以實(shí)現(xiàn)理想的響應(yīng)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.

同步發(fā)布的EVLPWD-FAN-PUMP評(píng)估板可幫助開(kāi)發(fā)者快速探索該驅(qū)動(dòng)程序在高達(dá)100W的項(xiàng)目中可提供的價(jià)值。該板將PWD5T60與STM32G0微控制器 (MCU) 相結(jié)合，可處理永磁同步電機(jī) (PMSM) 和無(wú)刷直流 (BLDC) 電機(jī)的磁場(chǎng)定向控制 (FOC) 或6步控制。為搭配風(fēng)扇和泵使用，意法半導(dǎo)體通過(guò)可配置的單分流或三分流傳感，專(zhuān)門(mén)對(duì)該板進(jìn)行了優(yōu)化，并利用PWD5T60的高功能集成來(lái)實(shí)現(xiàn)緊湊的圓形外形。該板還配有一個(gè)電源級(jí)，可為應(yīng)用產(chǎn)生12V和3.3V的電源電壓，并在輸入端配備了完整的交流線路濾波器。

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板具有板載總線電壓傳感功能，有助于利用PWD5T60的安全設(shè)計(jì)，為各自舉部分提供欠壓鎖定 (UVLO)，以避免在危險(xiǎn)或低效條件下運(yùn)行。PWD5T60專(zhuān)為打造穩(wěn)健性而設(shè)計(jì)，具有互鎖和預(yù)編程默認(rèn)死區(qū)的防交叉?zhèn)鲗?dǎo)功能，以確保對(duì)擊穿電流的故障安全保護(hù)。此外，其出色的地下穩(wěn)健性也保證了出色的無(wú)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具有智能關(guān)機(jī)功能，可通過(guò)比較器來(lái)快速防止過(guò)電流。當(dāng)檢測(cè)到故障時(shí)，輸出會(huì)立即關(guān)閉，隨后將電容器和上拉電阻器（可選）連接到專(zhuān)用引腳，以此來(lái)對(duì)輸出禁用持續(xù)時(shí)間進(jìn)行編程。關(guān)閉響應(yīng)不受此類(lèi)組件的影響，讓產(chǎn)品開(kāi)發(fā)者得以?xún)?yōu)化持續(xù)時(shí)間，以便有充足的時(shí)間來(lái)清除故障，并確保關(guān)閉的即時(shí)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.

該驅(qū)動(dòng)器具有從9V到20V的寬輸入電源電壓范圍，可實(shí)現(xiàn)出色的靈活性，而低至3.3V的CMOS/TTL兼容邏輯輸入則簡(jiǎn)化了與主機(jī)控制器的接口連接。

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現(xiàn)已全面投產(chǎn)，采用緊湊型12mm x 12mm VFQFPN封裝（高度僅0.95mm）；千片起訂單價(jià)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評(píng)估板現(xiàn)可從電子商城購(gòu)買(mǎi)，建議零售價(jià)102.00美元。該板利用X-CUBE-MCSDK電機(jī)控制軟件開(kāi)發(fā)套件中的FOC和6步控制固件提供即插即用的便利性，該套件可在st.com免費(fèi)獲得。