Eice DR IV ER ™ High voltage gate driver IC E valu atio n B oar d Application Note EV AL_ 2E D02 0I1 2 - F2 Applic atio n N ote Revision 1.0, 2013-07-26 Infin eon T echnol ogi es A G Edition 2013-07-26 Published by Infineon Technologies AG 81726 Munich, Germany © 2013 Infineon Technologies AG All Rights Reserved. LEGAL DISCLAIMER THE INFORMATION GIVEN IN THIS APPLICATION NOTE IS GIVEN AS A HINT FOR THE IMPLEMENTATION OF THE INFINEON TECHNOLOGIES COMPONENT ONLY AND SHALL NOT BE REGARDED AS ANY DESCRIPTION OR WARRANTY OF A CERTAIN FUNCTIONALITY, CONDITION OR QUALITY OF THE INFINEON TECHNOLOGIES COMPONENT. THE RECIPIENT OF THIS APPLICATION NOTE MUST VERIFY ANY FUNCTION DESCRIBED HEREIN IN THE REAL APPLICATION. INFINEON TECHNOLOGIES HEREBY DISCLAIMS ANY AND ALL WARRANTIES AND LIABILITIES OF ANY KIND (INCLUDING WITHOUT LIMITATION WARRANTIES OF NON-INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OF ANY THIRD PARTY) WITH RESPECT TO ANY AND ALL INFORMATION GIVEN IN THIS APPLICATION NOTE. Information For further information on technology, delivery terms and conditions and prices, please contact the nearest Infineon Technologies Office (www.infineon.com). Warnings Due to technical requirements, components may contain dangerous substances. For information on the types in question, please contact the nearest Infineon Technologies Office. Infineon Technologies components may be used in life-support devices or systems only with the express written approval of Infineon Technologies, if a failure of such components can reasonably be expected to cause the failure of that life-support device or system or to affect the safety or effectiveness of that device or system. Life support devices or systems are intended to be implanted in the human body or to support and/or maintain and sustain and/or protect human life. If they fail, it is reasonable to assume that the health of the user or other persons may be endangered. EiceDRIVER™ Driver IC Evaluation Board EVAL_2ED020I12-F2 Application Note Revision History: 2013-07 Rev.1.0 Page or Item Subjects (major changes since last revision) Previous Version: 1.0 Trademarks of Infineon Technologies AG AURIX™, C166™, CanPAK™, CIPOS™, CIPURSE™, EconoPACK™, CoolMOS™, CoolSET™, CORECONTROL™, CROSSAVE™, DAVE™, DI-POL™, EasyPIM™, EconoBRIDGE™, EconoDUAL™, EconoPIM™, EconoPACK™, EiceDRIVER™, eupec™, FCOS™, HITFET™, HybridPACK™, I²RF™, ISOFACE™, IsoPACK™, MIPAQ™, ModSTACK™, my-d™, NovalithIC™, OptiMOS™, ORIGA™, POWERCODE™, PRIMARION™, PrimePACK™, PrimeSTACK™, PRO-SIL™, PROFET™, RASIC™, ReverSave™, SatRIC™, SIEGET™, SINDRION™, SIPMOS™, SmartLEWIS™, SOLID FLASH™, TEMPFET™, thinQ!™, TRENCHSTOP™, TriCore™. Other Trademarks Advance Design System™ (ADS) of Agilent Technologies, AMBA™, ARM™, MULTI-ICE™, KEIL™, PRIMECELL™, REALVIEW™, THUMB™, µVision™ of ARM Limited, UK. AUTOSAR™ is licensed by AUTOSAR development partnership. Bluetooth™ of Bluetooth SIG Inc. CAT-iq™ of DECT Forum. COLOSSUS™, FirstGPS™ of Trimble Navigation Ltd. EMV™ of EMVCo, LLC (Visa Holdings Inc.). EPCOS™ of Epcos AG. FLEXGO™ of Microsoft Corporation. FlexRay™ is licensed by FlexRay Consortium. HYPERTERMINAL™ of Hilgraeve Incorporated. IEC™ of Commission Electrotechnique Internationale. IrDA™ of Infrared Data Association Corporation. ISO™ of INTERNATIONAL ORGANIZATION FOR STANDARDIZATION. MATLAB™ of MathWorks, Inc. MAXIM™ of Maxim Integrated Products, Inc. MICROTEC™, NUCLEUS™ of Mentor Graphics Corporation. MIPI™ of MIPI Alliance, Inc. MIPS™ of MIPS Technologies, Inc., USA. muRata™ of MURATA MANUFACTURING CO., MICROWAVE OFFICE™ (MWO) of Applied Wave Research Inc., OmniVision™ of OmniVision Technologies, Inc. Openwave™ Openwave Systems Inc. RED HAT™ Red Hat, Inc. RFMD™ RF Micro Devices, Inc. SIRIUS™ of Sirius Satellite Radio Inc. SOLARIS™ of Sun Microsystems, Inc. SPANSION™ of Spansion LLC Ltd. Symbian™ of Symbian Software Limited. TAIYO YUDEN™ of Taiyo Yuden Co. TEAKLITE™ of CEVA, Inc. TEKTRONIX™ of Tektronix Inc. TOKO™ of TOKO KABUSHIKI KAISHA TA. UNIX™ of X/Open Company Limited. VERILOG™, PALLADIUM™ of Cadence Design Systems, Inc. VLYNQ™ of Texas Instruments Incorporated. VXWORKS™, WIND RIVER™ of WIND RIVER SYSTEMS, INC. ZETEX™ of Diodes Zetex Limited. Last Trademarks Update 2011-11-11 Revision 1.0, 2013-07-26 EiceDRIVER™ Driver IC Evaluation Board EVAL_2ED020I12-F2 Application Note Table of Contents Table of Contents 1 Introduction ........................................................................................................................................ 5 2 2.1 2.2 2.3 Design feature .................................................................................................................................... 6 Main features ........................................................................................................................................ 6 Key data ............................................................................................................................................... 7 Pin assignment ..................................................................................................................................... 8 3 3.1 3.2 3.3 3.4 3.5 3.6 3.7 Electrical features .............................................................................................................................. 9 Supply voltages +5V and +15V ............................................................................................................ 9 Under voltage lockout .......................................................................................................................... 9 VCEsat monitoring for short circuit detection ....................................................................................... 9 Active Miller clamping ........................................................................................................................ 10 IGBT turn - on / off .............................................................................................................................. 11 DC-Link capacitor ............................................................................................................................... 12 Input PWM-Signals............................................................................................................................. 12 4 4.1 4.2 4.2.1 4.2.2 4.2.3 4.2.4 4.3 Schematic and Layout ..................................................................................................................... 14 Schematic ........................................................................................................................................... 14 Layout ................................................................................................................................................. 17 Creepage distance ............................................................................................................................. 17 Layout top ........................................................................................................................................... 17 Layout bottom..................................................................................................................................... 17 Top place ............................................................................................................................................ 18 Bill of material ..................................................................................................................................... 19 Application Note 4 Revision 1.0, 2013-07-26 EiceDRIVER™ Driver IC Evaluation Board EVAL_2ED020I12-F2 Application Note Introduction 1 Introduction The gate driver evaluation board EVAL_2ED020I12-F2 was developed to show the functionalities and key features of the Infineon IGBT gate driver 2ED020I12-F2. The board is available from Infineon in sampling quantities. The properties of this part are described in the datasheet chapter of this document, whereas the remaining paragraphs provide information intended to enable the customer to copy, modify and qualify the design for production, according to their own specific requirements. The design of the EVAL_2ED020I12-F2 was performed with respect to the environmental conditions described in this document. The design was tested as described in this document, but not qualified regarding manufacturing, lifetime or over the full ambient operating conditions. The boards provided by Infineon are subjected to functional testing only. Due to their purpose Evaluation Boards are not subjected to the same procedures regarding Returned Material Analysis (RMA), Process Change Notification (PCN) and Product Discontinuation (PD) as regular products. These Evaluation Boards are used for development support only and should not be used as reference design for volume production. See Legal Disclaimer and Warnings for further restrictions on Infineons warranty and liability. Application Note 5 Revision 1.0, 2013-07-26 EiceDRIVER™ Driver IC Evaluation Board EVAL_2ED020I12-F2 Application Note Design feature 2 Design feature This chapter provides an overview of the main features, key datas, pin assignments and mechanical dimensions 2.1 Main features Figure 2-1 top view of the EVAL_2ED020I12-F2 The EVAL_2ED020I12-F2 contains an Infineon IGBT gate half bridge driver 2ED020I12-F2 and two Infineon IGBTs IKP20N60H3. The evaluation board provides the following main features Galvanic isolation by the coreless transformer technology of the Infineon gate driver. The gate 2ED020I12-F2 is suitable for basic isolation Isolation inside the half bridge by defined creepage Short circuit protection Under voltage lock out Active miller clamp Bootstrap functionality for high side IGBT Connector for 5V digital supply, 15V supply, Reset, High voltage supply, external load Status LED for 5V supply, 15V supply, ready and fault separated for high- and lowside driver DC link capacitor Application Note 6 Revision 1.0, 2013-07-26 EiceDRIVER™ Driver IC Evaluation Board EVAL_2ED020I12-F2 Application Note Design feature IGBT half bridge gate driver HV-supply input V+HV Status LED Ready / Fault DC-link External load IGBT HV-supply input Ground 5V, 15V supply input, Reset with status LEDs Figure 2-2 overview functionalities on top-side 2.2 Key data All values are values at an ambient temperature of 25°C. Table 2-1 Parameter Description Typ. Min. Max. Unit +15V 5V HV IOut IGmax RGmin 15 5 - 13 4.5 10 17.5 5.5 600 20 2 - V V V A A 15V voltage supply 5V voltage supply High voltage supply Output current Max. peak gate driver output current Min. gate resistor to limit gate driver output Ω * Please make sure that the maximum rated values never get exceeded. Also the performance and quality can not be guaranteed when using the board with all parameters in maximum rated value at the same time. Application Note 7 Revision 1.0, 2013-07-26 EiceDRIVER™ Driver IC Evaluation Board EVAL_2ED020I12-F2 Application Note Design feature 2.3 Pin assignment Table 2-2 Connector name Pin no. Pin name Description RESET Right terminal Left terminal /RST GND same as X1-B1 same as X1-A16 +5V (VCC1) Left terminal Right terminal +5V GND positive 5V logic supply same as X1-A16 +15V (VCC2) Right terminal Left terminal +15V GND positive 15V supply for secondary side X1 A16 B1 B2 B5 B6 B7 B8 B16 GND /RST /FLT IN-T IN-B IN+T IN+B +5V reference for 5V supply and input signals input – 0V to reset circuit output combined /Fault_T, /Fault_B, 0..5V inverting input top IGBT; internal pull up inverting input bottom IGBT; internal pull up non-inverting input top IGBT; 0V off; 5V on non-inverting input bottom IGBT; 0V off; 5V on positive 5V supply reference for high voltage supply (Power-GND, internally connected to GND) positive high voltage supply (up to 800V related to GND_HV) GND_HV V+HV OUT Application Note Output HV half bridge (related to GND_HV) 8 Revision 1.0, 2013-07-26 EiceDRIVER™ Driver IC Evaluation Board EVAL_2ED020I12-F2 Application Note Electrical features 3 Electrical features 3.1 Supply voltages +5V and +15V The supply voltage for the digital part (+5V VCC1) and for the driver output (+15V VCC2) has to be supplied externally over the dedicated connectors. The evaluation board does not provide an over voltage supply monitoring, therefore the user has to ensure that the voltages are in the correct range. Voltages above the max. values will lead to damages of the IGBT drivers. The availability of the supply voltages is visible over the green status LEDs. The high-Side gate driver is supplied over a bootstrap diode DBOOT. To ensure that the bootstrap capacitor is charged before the high side IGBT is switched on, the low side IGBT has to be switched on for a dedicated time. 3.2 Under voltage lockout The +15V supply VCC2 is monitored by the 2ED020I12-F2. In case of an undervoltage of <13V the driver output is switched off. This status is visible over the yellow READY LEDs for top and bottom side. If the LED is on, the +15V supply is >13V 3.3 VCEsat monitoring for short circuit detection The Infineon gate driver 2ED020I12-F2 provides a short circuit detection by measuring the VCEsat voltage of the IGBT. If a short circuit occurs, the collector current and the saturation voltage increase. If the IGBT is commanded on stated and the VCE reaches 9V a short circuit is detected and the gate driver output is switched off. This status is reported by the /FLT signal and the dedicated FAULT LED is switched on. Figure 3-1 shows the signals of the bottom side driver and IGBT during a shoot through. VCEsat IC VGE_BOT Figure 3-1 the signals of the bottom side driver and IGBT during a shoot through (Ic curve with 1.2µs delay due to slow current probe) The FAULT status is latched by the 2ED020I12-F2 and must be resetted by switching the RESET Signal to ground Application Note 9 Revision 1.0, 2013-07-26 EiceDRIVER™ Driver IC Evaluation Board EVAL_2ED020I12-F2 Application Note Electrical features 3.4 Active Miller clamping On this evaluation board the Infineon gate driver 2ED020I12-F2 is supplied with a unipolar voltage +15V/0V instead of a bipolar supply voltage e.g. +15V/-8V. To avoid a parasitic turn on of the gate by switching on the opposite IGBT, the feature “Active Miller Clamp” of the 2ED020I12-F2 is used. During turn-off, the gate voltage is monitored. If the gate voltage goes below 2V related to VEE2, the clamp output is activated and clamps the gate voltage to VEE2 till an on-command for the gate driver output occurs. VCE_bot Clamp active activated VGE_top VGE_bot IC Figure 3-2 the clamping of the top side gate at voltages < 2V Application Note 10 Revision 1.0, 2013-07-26 EiceDRIVER™ Driver IC Evaluation Board EVAL_2ED020I12-F2 Application Note Electrical features 3.5 IGBT turn - on / off The switching characteristic of the IGBTs is defined by the gate resistors RG1B, RG1T, RG2B and RG2T. Figure 3-3 bottom side driver output The gate resistors are adapted to the Infineon IGBT IKP20N60H3 to get signals with less oscillation as possible by keeping a fast slope at the output. There is the possibility to adapt the switching characteristic to specific applications or to different IGBTs by replacing the values of RG1B and RG1T. The use of RG2B and RG2T together with DG1B and DG1T makes it possible to change the onswitching and the off-switching slopes of the IGBT independent to each other. To avoid a shoot through between top- and bottom IGBT, the operator needs ensure sufficient dead time. With this setup the deadtime should be > 1.5µs. VCE_bot VGE_bot IC Figure 3-4 turning on bottom IGBT Application Note 11 Revision 1.0, 2013-07-26 EiceDRIVER™ Driver IC Evaluation Board EVAL_2ED020I12-F2 Application Note Electrical features VGE_bot VCE_bot IC Figure 3-5 turning off bottom IGBT VGE_bot VCE_bot IC VGE_top Figure 3-6 turning off bottom IGBT and turning on top IGBT with delay of 2.5µs 3.6 DC-Link capacitor Due to the available space there is only a small DC-Link capacitor of 220nF available. If a bigger DCLink capacity is necessary it has to be connected externally to the connectors V+HV and GND_HV. 3.7 Input PWM-Signals The PWM input pins of the 2ED020I12-F2 can be configured in non-inverting input logic or inverting input logic. IN+ Non Inverting Driver Input IN+ control signal for the driver output if IN- is set to low, e.g. the IGBT is on if IN+ = high and IN- = low IN- Inverting Driver Input IN- control signal for the driver output if IN+ is set to high, e.g. the IGBT is on if IN- = low and IN+ = high Application Note 12 Revision 1.0, 2013-07-26 EiceDRIVER™ Driver IC Evaluation Board EVAL_2ED020I12-F2 Application Note Electrical features The EVAL_2ED020I12-F2 is designed in that way, that the non-inverting input is used. There is the possibility to use also the inverting input logic by replace RIN1T, RIN1B and RP1T and RP1B. Figure 3-7 bottom side driver input There is also the possibility to use low pass filters inside the PWM input signals to avoid a undesired switch on an IGBT by disturbances. This feature is not used in this evaluation board, but there is the possibility to test it by changing the resistors RIN1T, RIN1B, RIN2T, RIN2B and the capacitors CIN1T, CIN1B, CIN2T, CIN2B. Application Note 13 Revision 1.0, 2013-07-26 EiceDRIVER™ Driver IC Evaluation Board EVAL_2ED020I12-F2 Application Note Schematic and Layout 4 Schematic and Layout 4.1 Schematic Figure 4-1 HV supply input and DC-Link Figure 4-2 LV Supply and Reset Input Application Note 14 Revision 1.0, 2013-07-26 EiceDRIVER™ Driver IC Evaluation Board EVAL_2ED020I12-F2 Application Note Schematic and Layout Figure 4-3 connector X1 Figure 4-4 Infineon driver 2ED020I12-F2 top and bottom Application Note 15 Revision 1.0, 2013-07-26 EiceDRIVER™ Driver IC Evaluation Board EVAL_2ED020I12-F2 Application Note Schematic and Layout Figure 4-5 LEDs, FAULT and READY logic Application Note 16 Revision 1.0, 2013-07-26 EiceDRIVER™ Driver IC Evaluation Board EVAL_2ED020I12-F2 Application Note Schematic and Layout 4.2 Layout 4.2.1 Creepage distance The isolation between input and output is ensured by the coreless transformer of the 2ED020I12-F2 IGBT gate driver. The creepage distance ensured by the layout is 8mm between low- and high voltage supply and 0.9mm inside the high voltage supply area. 4.2.2 Layout top Figure 4-6 Layout top of the EVAL_2ED020I12-F2 4.2.3 Layout bottom Figure 4-7 Layout bottom of the EVAL_2ED020I12-F2 Application Note 17 Revision 1.0, 2013-07-26 EiceDRIVER™ Driver IC Evaluation Board EVAL_2ED020I12-F2 Application Note Schematic and Layout 4.2.4 Top place Figure 4-8 top place view of the EVAL_2ED020I12-F2 Application Note 18 Revision 1.0, 2013-07-26 EiceDRIVER™ Driver IC Evaluation Board EVAL_2ED020I12-F2 Application Note Schematic and Layout 4.3 Bill of material Part Value Package C1, C4, C5, C6 C1B, C1T, C3 C2 C2B, C2T C3B, C3T C7 C_BULK 100nF/10V X7R 1uF/10V X7R 100µF/16V 1µF/25V X7R 220pF/50V X7R 4u7F/25V X7R 220nF/1000V SMD0603 SMD0805 6.3 x 6.3 x 7.7mm SMD1206 SMD0603 SMD1206 C22.5B10 BAT165 STTH112U MURS160T3G 1k 10R 100R SOD323F SMB_DO-214AA SMB_DO-214AA SMD0805 SMD1206 SMD1206 0R 820R SMD0603 SMD0805 270R SMD0805 10k IC-DRV-2ED020I12-F2 IKP20N60H3_IGBT BCR192 SMD0603 PG-DSO-36-58 TO220BH SOT23 TL2, TL4 BCR142W SOT323 X1 +5V, +15V, RESET GND_HV, OUT, V+HV !FAULT_B, !FAULT_T 15V, VCC READY_B, READY_T FAB32Q2 22-23-2021 MKDSN1,5/2-5,08 LED_RT LED_GN LED_GE FAB32Q2 22-23-2021 MKDSN1,5/2-5,08 CHIPLED_0805 CHIPLED_0805 CHIPLED_0805 D1, D2, D2B D2T, D3B, D3T D1B, D1T DBOOT R1B, R1T RBOOT RG1B, RG1T RIN1B, RIN1T RP2B, RP2T RL1 RL2, RL3, RL4 RL5, RL6 RP3B, RP3T, RP4B RP4T, RP5 2ED020I12-F2 T1B, T1T TL1, TL3 Application Note 19 Revision 1.0, 2013-07-26 w w w . i n f i n e o n . c o m Published by Infineon Technologies AG