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Rohm P04SCT4018KE-EVK-001 User Manual

Rohm P04SCT4018KE-EVK-001 User Manual

4th generation sic mosfet half bridge evaluation board

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Generation SiC MOSFET
th
4
Half Bridge Evaluation Board
User's Manual
Downloaded From
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Summary of Contents for Rohm P04SCT4018KE-EVK-001

  • Page 1 Generation SiC MOSFET Half Bridge Evaluation Board User’s Manual Downloaded From Oneyac.com...
  • Page 2: Short Circuit Protection

    Please read the cautionary note on short circuit protection this board at the beginning of this document. © 2022 ROHM Co., Ltd. No. 63UG059J Rev.001 1/27 2022.2 Downloaded From Oneyac.com...
  • Page 3: Power On Sequence

    Power Off Power On Sequence Sequence HVdc 12 V 800 V 5.0V 5.0V HVdc 800 V 12 V Figure 1 On/Off sequence © 2022 ROHM Co., Ltd. No. 63UG059J Rev.001 2/27 2022.2 Downloaded From Oneyac.com...
  • Page 4 "4. How to set the gate drive voltage" and "5. How to set the gate resistance”. Table.1 shows the lineup and specifications of the 4 generation SiC MOSFET series. © 2022 ROHM Co., Ltd. No. 63UG059J Rev.001 3/27 2022.2 Downloaded From Oneyac.com...
  • Page 5: Led Display

    HV alive HS_Vcc2 ON +5V ON (a) PCB004P for TO-247N LS_Vcc2 ON HS_Vcc2 ON HV alive +5V ON LS_Vcc2 ON (b) PCB005P for TO-247-4L Figure 2. LED Location © 2022 ROHM Co., Ltd. No. 63UG059J Rev.001 4/27 2022.2 Downloaded From Oneyac.com...
  • Page 6: Connector Pin Assignment

    JP51 (H-side negative bias/0 V switching connector) VEE_HS GND2_HS SOURCE_HS JP151 (L-side negative bias/0 V switching connector) VEE_LS GND2_LS SOURCE_LS Figure 3 Connector pin assignment (Top view) © 2022 ROHM Co., Ltd. No. 63UG059J Rev.001 5/27 2022.2 Downloaded From Oneyac.com...
  • Page 7 SOURCE_LS PCB004P: SOURCE signal of L-side DUT. PCB005P: DRIVER SOURCE signal of L-side DUT. GND2_LS GND2 signal of L-side driver IC. VEE_LS L-side negative bias power supply. © 2022 ROHM Co., Ltd. No. 63UG059J Rev.001 6/27 2022.2 Downloaded From Oneyac.com...
  • Page 8 The gate drive voltage is supplied by an isolated flyback power supply mounted on-board. This flyback power supply uses a photo-coupler-less control IC (BD7F200EFJ) manufactured by ROHM, and is equipped with transformers that output positive and negative drive voltages on the HS and L-sides, respectively.
  • Page 9 TO-247N(-4L) Half-Bridge Evaluation Board User’s Guide © 2022 ROHM Co., Ltd. No. 63UG059J Rev.001 8/27 2022.2 Downloaded From Oneyac.com...
  • Page 10 TO-247N. The output signal of the ROHM MOSFET driver IC (BM61M41RFV-C) directly drives the MOSFET via the gate resistor. Since the pattern inductance of the driver circuit affects the surge voltage characteristics of the gate-source signal, it is recommended to keep the wiring length as short as possible, so the circuit is composed of a minimum number of adjustment components.
  • Page 11 CX51 CX151 (a) Connector mounting pattern b) Measurement using an optical isolation probe (c) Probe connections Figure 8. Measurement method with Coaxial type shunt resistor © 2022 ROHM Co., Ltd. No. 63UG059J Rev.001 10/27 2022.2 Downloaded From Oneyac.com...
  • Page 12 The head of the Rogowski-type current probe is available in various sizes, and the applicable head is shown in Figure 10, with a diameter of 25 mm to 30 mm and a wire diameter of 3 mm or less. Figure 10 Applicable head part of Rogowski-type current probe © 2022 ROHM Co., Ltd. No. 63UG059J Rev.001 11/27 2022.2...
  • Page 13 DUT with a general passive probe. R321 Coaxial R321 mounting position (b) Replaced with coaxial-type shunt resistor Figure 11 Measurement method with coaxial-type shunt resistor © 2022 ROHM Co., Ltd. No. 63UG059J Rev.001 12/27 2022.2 Downloaded From Oneyac.com...
  • Page 14 Figure 13 shows a photograph of the mounted state. An equivalent product (33BS136) is available from Sankyo Thermo-Tech with a thermal resistance of 1.16ºC/W. Figure 12 Heat sink installation diagram Figure 13 Example of heat sink installation © 2022 ROHM Co., Ltd. No. 63UG059J Rev.001 13/27 2022.2 Downloaded From...
  • Page 15 Output Bulk Capacitor Heat Sink (Mounted on the solder side) Input Bulk Capacitor Inductor Figure 14 Measurement view of heat sink installation Figure 15 Efficiency (SCT4036KR, BUCK, Rg=3.3Ω) © 2022 ROHM Co., Ltd. No. 63UG059J Rev.001 14/27 2022.2 Downloaded From Oneyac.com...
  • Page 16 T is about twice that value. Note that a heat sink is not necessary, but be careful not to raise the temperature of the flywheel diode when performing repeated double-pulse tests. © 2022 ROHM Co., Ltd. No. 63UG059J Rev.001 15/27 2022.2...
  • Page 17 Figure 17 L-side double-pulse circuit After preparing the pulse generator and connecting the external CLK signal to the IN_L_CLK pin (CN101 pin 1), the procedure is the same as for the H-side. © 2022 ROHM Co., Ltd. No. 63UG059J Rev.001 16/27 2022.2...
  • Page 18 When increasing the load current, pay attention to the heat generation of the evaluation device, and if necessary, install a heat sink capable of sufficient cooling or consider the ambient temperature. © 2022 ROHM Co., Ltd. No. 63UG059J Rev.001 17/27 2022.2...
  • Page 19 When increasing the load current, pay attention to the heat generation of the evaluation device, and if necessary, install a heat sink capable of sufficient cooling or consider the ambient temperature. © 2022 ROHM Co., Ltd. No. 63UG059J Rev.001 18/27 2022.2...
  • Page 20 IN_H_CLK and IN_L_CLK signals. When increasing the load current, pay attention to the heat generation of the evaluation device, and if necessary, install a heat sink capable of sufficient cooling or consider the ambient temperature. © 2022 ROHM Co., Ltd. No. 63UG059J Rev.001 19/27 2022.2...
  • Page 21: Snubber Circuit

    5750 0.66W C5750C0G3A333J280KC PGND PGND (a) Circuit diagram H-side MOSFET HS-side Bulk Capacitor Snubber L-side MOSFET (b) Mounting example (PCB005P, H-side) Figure 21 RCD non-discharge snubber circuit © 2022 ROHM Co., Ltd. No. 63UG059J Rev.001 20/27 2022.2 Downloaded From Oneyac.com...
  • Page 22 1070 V. On the other hand, there is little effect on the switching speed. Figure 22 Effect of snubber circuit (SCT4018KR) 11. Protection Circuit for Gate-Source Signal © 2022 ROHM Co., Ltd. No. 63UG059J Rev.001 21/27 2022.2 Downloaded From...
  • Page 23 (III) (IV) (II) Figure 23 Protection circuit for gate-source signal (PCB004P) © 2022 ROHM Co., Ltd. No. 63UG059J Rev.001 22/27 2022.2 Downloaded From Oneyac.com...
  • Page 24 (II) Gate (II) Gate L-side Gate Resistor (III) L-side Gate (III) Source Resistor (IV) (a) PCB004P (b) PCB005P Figure 24 Mounting position of gate-source voltage protection circuit © 2022 ROHM Co., Ltd. No. 63UG059J Rev.001 23/27 2022.2 Downloaded From Oneyac.com...
  • Page 25 Drain current: Approx. 80 A Pulse width: 2.5µs : 3.3Ω G_EXT Evaluation board: PCB005P Rev.C (a) Measurement circuit (b) Measurement waveform Figure 25 Effect of protection circuit (SCT4090KR) © 2022 ROHM Co., Ltd. No. 63UG059J Rev.001 24/27 2022.2 Downloaded From Oneyac.com...
  • Page 26 OUT pin to GND2, which may destroy the OUT pin of the driver IC if the external resistance is small. Therefore, be sure to check the gate-source short circuit conditions before operation. © 2022 ROHM Co., Ltd. No. 63UG059J Rev.001 25/27 2022.2...
  • Page 27 TO-247N(-4L) Half-Bridge Evaluation Board User’s Guide References: *1 “Gate-source voltage behavior in a bridge configuration” Application Note (No. 60AN135ERev.002) ROHM Co., Ltd., May 2018 https://fscdn.rohm.com/en/products/databook/applinote/discrete/sic/mosfet/sic-mosfet_gate- source_voltage_an-e.pdf *2 “Gate-Source Voltage Surge Suppression Methods” Application Note (No. 62AN010ERev.002) ROHM Co., Ltd., May 2019 https://fscdn.rohm.com/en/products/databook/applinote/discrete/sic/mosfet/sicmosfet-...
  • Page 28 Products. ROHM does not grant you, explicitly or implicitly, any license to use or exercise intellectual property or other rights held by ROHM or any other parties. ROHM shall have no responsibility whatsoever for any dispute arising out of the use of such technical information.
  • Page 29 单击下面可查看定价,库存,交付和生命周期等信息 >>ROHM Semiconductor(罗姆) Downloaded From Oneyac.com...

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