In recent years, SiC MOSFET modules have become popular compared to conventional IGBT modules as they have a smaller size and lower loss, which is useful in power conversion applications such as industrial motor drives and railway inverters. This is a gate drive circuit with various protection functions which can safely drive a SiC MOSFET module.
This design uses the TLP5231 pre-driver coupler, which is capable of high-current gate drive with external buffer MOSFETs and has various built-in protection functions to implement the isolated-gate drive of a high-current/high-voltage SiC MOSFET module. It consists of two channels, high-side and low-side, on a 62mm x 100mm board and can be installed on Toshiba dual MOSFET modules.
Design tips on each portion of the circuit, method of operation, and design information such as circuit diagrams and PCB patterns are available, please use them for your design.
Click on components for more details
Power supply voltage for control | DC24V |
---|---|
Number of driving channels | 2 ch:Low-side, High-side |
Gate control signal input | 5V CMOS |
Gate drive output | +20V (Typ.) / -6.7V (Typ.) |
供設計人員使用的材料,例如電路操作概述和設計注意事項的解釋。請點擊每個選項以查看內容。
提供可載入到EDA工具中的電路資料、PCB佈局資料以及PCB製造中使用的資料。來自多個工具供應商的可用格式。您可以使用喜歡的工具來自由的編輯它。
器件型號 | 器件目錄 | 使用部位・數量 | 說明 |
---|---|---|---|
Photocoupler (photo-IC output) | Pre driver・2 | Photocoupler (photo-IC output), Power device pre-driver, IOP=+/-2.5 A, 5000 Vrms, SO16L | |
Power MOSFET (P-ch single) | Turn on buffer・2 | P-ch MOSFET, -40 V, 0.025 Ω@10V, SOP-8, U-MOSⅥ | |
Small Low ON resistance MOSFETs | Turn off buffer・4 | N-ch, MOSFET, 40V, 12A, 18mΩ@4.5V, TSOP6F | |
Low Dropout (LDO) Linear Voltage Regulator | Generates control power supply voltage・4 | High voltage, Low quiescent current, Fast load transient CMOS Linear Regulator | |
Small-signal MOSFET | Input signal drive・2 | N-ch MOSFET, 30 V, 0.1 A, 3.6 Ω@4V, SOT-416(SSM) | |
Transistor for low frequency small-signal amplification | Fault detection signal output・2 | NPN Bipolar Transistor, 50 V, 0.15 A, SOT-723(VESM) |
我們提供有助於設計和考慮類似電路的材料,例如已安裝產品的應用說明。請點擊每個選項以查看內容。