Cree CRD-5FF0912P User Manual Download Page 17 | Manualshive

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17

CPWR-AN17, Rev -, 05-2016

Copyright © 2016 Cree, Inc. All rights reserved.
The information in this document is subject to change without notice.
Cree, the Cree logo, and Zero Recovery are registered trademarks of Cree, Inc.

Figure 14. Probes connected to evaluation board

Figure 15. Waveforms measured with evaluation board

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Summary of Contents for CRD-5FF0912P

Page 1: ...re All parts of this document are provided in English and the Cautions are provided in English Mandarin and Japanese If the end user of this board is not fluent in any of these languages it is your responsibility to ensure that they understand the terms and conditions described in this document including without limitation the hazards of and safe operating conditions for this board 本文件中的所有内容均以英文书写...

Page 2: ...tool in a lab setting and to be handled and operated by highly qualified technicians or engineers The hardware is not designed to meet any particular safety standards and the tool is not a production qualified assembly CAUTION PLEASE CAREFULLY REVIEW THE FOLLOWING PAGE AS IT CONTAINS IMPORTANT INFORMATION REGARDING THE HAZARDS AND SAFE OPERATING REQUIREMENTS RELATED TO THE HANDLING AND USE OF THIS...

Page 3: ...wed when operating this board as any of the following can occur if you handle or use this board without following proper safety precautions Death Serious injury Electrocution Electrical shock Electrical burns Severe heat burns You must read this document in its entirety before operating this board It is not necessary for you to touch the board while it is energized All test and measurement probes ...

Page 4: ... 只有在切断板子电源且大容量电容器完全放电后才可更换待测试器件警告通電している時ボードに接触するのは禁止ですボードを処分する前に大容量のコンデンサーで電力を完全に釈放すべきです通電してからボードにひどく高い電圧が存在している可能性がありますボードのモジュールの温度は50度以上になるかもしれませんまた電源を切った後上記の状況がしばらく持続する可能性がありますので大容量のコンデンサーで電力を完全に釈放するまで待ってくださいボードを操作するとき正確な安全ルールを守るのを確保すべきですさもないと以下の危険がある可能性があります死亡重症感電電撃電気の火傷厳しい火傷当ボードを操作する前に完全に当書類をよく読んでください通電している時にボードに接触する必要がありません通電する前に必ずすべての試験用のプローブあるいはアクセサリーをつな...

Page 5: ...e configured into common power conversion topologies such as synchronous boost synchronous buck Inverter and other topologies This board was designed to make it easy for the user to Evaluate SiC MOSFET switching performance in a 7L D2PAK package to characterize EON and EOFF losses Evaluate thermal performance The integrated heatsink is predrilled with a blind hole on the backside for thermocouples...

Page 6: ... logic power status signals fault signals and gate drive control signals Gate Drive J10 Q1 Q2 CON1 CON2 CON3 CON4 Figure 2 Block Diagram Each gate drive circuit consists of a 2A isolated gate driver chip and a generous 2W isolated DC DC converter that can comfortably switch the SiC MOSFETs at up to 3MHz The driver chip provides 1200V of isolation between the low voltage control side and the high v...

Page 7: ... COM J4 3 3V J3 12V Figure 3 Gate Drive Circuit Table 1 shows how the jumpers should be configured depending on the desired gate drive output levels 15V 3V 15V 0V JM1 JM3 SHORT OPEN JM2 JM4 OPEN SHORT JM5 JM6 OPEN SHORT Gate Drive Output Table 1 Jumper Table There is a short circuit protection function for each gate drive circuit by means of Vds voltage monitoring The drain of each MOSFET is monit...

Page 8: ... the gate voltage of the opposing device is clamped below the threshold voltage To activate the Miller clamp a jumper JM5 upper channel JM6 lower channel needs to be shorted The Miller clamp should only be enabled when the gate driver is configured for 15V 0V output voltage Although we provide this feature on the board for the user to evaluate the effects of the Miller clamp it is not necessary to...

Page 9: ...d has several integrated features designed for effective thermal management The top and bottom side of the board uses heavy 8oz copper to help dissipate heat better It also has a 3mm diameter solid copper inlay directly under the SiC MOSEFTs Q1 and Q2 to effectively transfer the heat to the bottom side of the board The board is mechanically attached via 5 nonconductive screws to an extruded alumin...

Page 10: ...g P N SP2000 0 010 00 1212 A thermal stack up of the assembly is shown below in Figure 5 Figure 5 Thermal management and assembly stack up The measured values for the thermal resistance from the device junction C3M0120090J to the case Rth j c from the device case to the surface of the heatsink Rth c s and from the heatsink to ambient with the fan turned ON with a 12VDC source Rth s a is listed in ...

Page 11: ...an H bridge or 6 pak based topology with the addition of multiple evaluation boards A Synchronous Buck Converter Gate Drive J10 Q1 Q2 CON1 CON2 CON3 CON4 HV DC COUT L VOUT Step down voltage MOSFET is used instead of flyback diode Connect inductor to CON2 as output CON1 is input CON2 is output CON3 CON4 is ground Figure 6a Evaluation Board setup as Synchronous Buck Converter B Synchronous Boost Con...

Page 12: ...discharged Please ensure that appropriate safety procedures are followed when working with these connectors as serious injury including death by electrocution or serious injury by electrical shock or electrical burns can occur if you do not follow proper safety precautions When devices are being attached for testing the board must be disconnected from the electrical source and all bulk capacitors ...

Page 13: ...がありますので大容量のコンデンサーで電力を完全に釈放するまで待ってください通電している時にボードに接触するのは禁止です大容量のコンデンサーで電力をまだ完全に釈放していない時ボードに接触しないでくださいボードのコネクターは充電中また充電した後ひどく高い電圧が存在しているので大容量のコンデンサーで電力を完全に釈放するまで待ってくださいボードを操作している時正確な安全ルールを守っているのを確保してくださいさもなければ感電電撃厳しい火傷などの死傷が出る可能性があります設備をつないで試験する時必ずボードの電源を切ってくださいまた大容量のコンデンサーで電力を完全に釈放してください使用後すぐにボードの電源を切ってください電源を切った後大容量のコンデンサーに貯蓄している電量はコネクターに持続的に入るのでボードを操作する前に必ず大容量のコンデン...

Page 14: ...nd solderable posts to be soldered on all the major nodes so oscilloscope probes can be attached Figure 9 shows a pair of pin headers soldered onto test points 6 7 allowing an oscilloscope probe to monitor VDS for the lower MOSFET Figure 10 Figure 9 Pin headers on test points Figure 10 Scope probe on pin headers Terminals CON1 CON2 CON3 and CON4 are the power terminals and their definitions vary b...

Page 15: ... ON 0V SWITCH OFF COMMON Table 3 Pin definitions for connector J10 The heatsink fan is powered by 12VDC The 12V fan can be powered from the same 12V power supply that is powering the evaluation board 5 Switching loss measurement This board is ideal for making double pulsed clamped inductive load switching measurements Figure 11 shows how the board should be connected to make the switching measurem...

Page 16: ...eparately Due to the fast switching speeds associated with Cree SiC MOSFETs the following steps must be followed closely to yield the most accurate results possible Scope probes measuring VDS and VGS must have minimal loop area between the signal and ground The oscilloscope probes measuring VDS and IDS must be properly deskewed Bulk capacitance may need to be added to the board to minimize DC link...

Page 17: ...ights reserved The information in this document is subject to change without notice Cree the Cree logo and Zero Recovery are registered trademarks of Cree Inc Figure 14 Probes connected to evaluation board Figure 15 Waveforms measured with evaluation board ...

Page 18: ...016 Cree Inc All rights reserved The information in this document is subject to change without notice Cree the Cree logo and Zero Recovery are registered trademarks of Cree Inc 6 Appendix WARNING HIGH VOLTAGE SOME COMPONENTS WILL GET HOT ...

Page 19: ...16 Copyright 2016 Cree Inc All rights reserved The information in this document is subject to change without notice Cree the Cree logo and Zero Recovery are registered trademarks of Cree Inc 7 PCB Layout Drawings Top Traces ...

Page 20: ...6 Copyright 2016 Cree Inc All rights reserved The information in this document is subject to change without notice Cree the Cree logo and Zero Recovery are registered trademarks of Cree Inc Top Silkscreen Inner Layer 1 Traces ...

Page 21: ... 05 2016 Copyright 2016 Cree Inc All rights reserved The information in this document is subject to change without notice Cree the Cree logo and Zero Recovery are registered trademarks of Cree Inc Inner Layer 2 Traces ...

Page 22: ...016 Copyright 2016 Cree Inc All rights reserved The information in this document is subject to change without notice Cree the Cree logo and Zero Recovery are registered trademarks of Cree Inc Bottom Traces Bottom Silkscreen ...

Page 23: ...SFNC 9 4 C16 C18 C32 C34 CAP CER 10 000pf 50V 10 X7R 0603 Open C1608X7R2A103K080AA 10 2 C19 C35 CAP CER 1000PF 50V X7R 1206 Open CL31B102KBCNNNC 11 2 C20 C36 100pf X7R 10 2kV ceramic capacitor Open C1210C101KGRACTU 12 2 C37 C38 CAP CER 100pf 50V 10 X7R 0603 Open CL10B101KB8NNNC 13 2 C43 C44 CAP CER 1500PF 50V X7R 0603 Open CL10B152KB8NNNC 14 2 D1 D2 DIODE SCHOTTKY 40V 1A SOD123 Diodes Inc 1N5819HW...

Page 24: ...1 36 2 U3 U4 DC DC CONV 5 2KV ISO SIP7 TH 2W Murata MEJ2D1209SC 37 2 U6 U9 IC SINGLE INVERTER GATE SOT 23 5 TI SN74LVC1G04DBVR 38 1 U11 5V 1A regulator On Semiconductor MC7805CD2TR4G 39 2 ZD1 ZD4 DIODE ZENER 20V 500MW SOD123 On Semiconductor MMSZ20T1G 40 2 ZD2 ZD5 DIODE ZENER 3 3V 500MW SOD123 Diodes Inc MMSZ5226B 41 2 ZD3 ZD6 DIODE ZENER 2 7V 500MW SOD123 On Semiconductor MMSZ2V7T1G 42 1 mechanic...

Page 25: ...OR TO USE USE OF THIS BOARD IS AT THE USER S SOLE RISK Operation of Board It is important to operate the board within Cree s recommended specifications and environmental considerations as described in the Documentation Exceeding specified ratings such as input and output voltage current power or environmental ranges may cause property damage If you have questions about these ratings please contact...

Page 26: ...on and specifically the various hazard descriptions and warnings contained in the Documentation prior to handling the board The Documentation contains important safety information about voltages and temperatures Users assume all responsibility and liability for the proper and safe handling of the board Users are responsible for complying with all safety laws rules and regulations related to the us...

Page 27: ... No Warranty THE BOARD IS PROVIDED AS IS WITHOUT WARRANTY OF ANY KIND INCLUDING BUT NOT LIMITED TO ANY WARRANTY OF NON INFRINGEMENT WHETHER EXPRESS OR IMPLIED THERE IS NO REPRESENTATION THAT OPERATION OF THIS BOARD WILL BE UNINTERRUPTED OR ERROR FREE Limitation of Liability IN NO EVENT SHALL CREE BE LIABLE FOR ANY DAMAGES OF ANY KIND ARISING FROM USE OF THE BOARD CREE S AGGREGATE LIABILITY IN DAMA...

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