EVAL-ADUM4135EBZ

EVAL-ADuM4135EBZ User Guide UG-854 One Technology Way • P.O. Box 9106 • Norwood, MA 02062-9106, U.S.A. • Tel: 781.329.4700 • Fax: 781.461.3113 • www.analog.com Evaluation Board for the ADuM4135 iCoupler, Single-/Dual-Supply, High Voltage Isolated IGBT Gate Driver with Miller Clamp FEATURES GENERAL DESCRIPTION 4 A peak output current Desaturation protection circuitry Integrated Miller clamp CMOS input logic levels 12 V to 30 V output drive Supports multiple IGBT/MOSFET footprints Bootstrap option The EVAL-ADuM4135EBZ supports the ADuM4135 advanced isolated gate driver. Because the evaluation board has footprints for insulated gate bipolar transistors (IGBTs) and metal oxide semiconductor field effect transistors (MOSFETs) in TO-252, TO-220, and 0.100” spaced lead packages, the ADuM4135 can be evaluated with many different power devices. The EVALADuM4135EBZ comes with footprints to facilitate evaluating the desaturation detection, as well as the Miller clamp operation. SUPPORTED iCoupler MODELS Complete information about the ADuM4135 is available in the ADuM4135 data sheet, which should be consulted in conjunction with this user guide when using the evaluation board. ADuM4135 EVALUATION BOARD PICTURE Figure 1. PLEASE SEE THE LAST PAGE FOR AN IMPORTANT WARNING AND LEGAL TERMS AND CONDITIONS. Rev. 0 | Page 1 of 6 UG-854 EVAL-ADuM4135EBZ User Guide TABLE OF CONTENTS Features .............................................................................................. 1 Pad Layout for the Device Under Test (DUT)...........................3 Supported iCoupler Models ............................................................ 1 Power Connections .......................................................................3 General Description ......................................................................... 1 Input/Output Connections ..........................................................3 Evaluation Board Picture ................................................................. 1 Evaluation Board Schematic ............................................................4 Revision History ............................................................................... 2 Evaluation Board Layout ..................................................................5 Setting Up the EVAL-ADuM4135EBZ .......................................... 3 Ordering Information .......................................................................6 Initial Configuration .................................................................... 3 Bill of Materials ..............................................................................6 REVISION HISTORY 8/15—Revision 0: Initial Version Rev. 0 | Page 2 of 6 EVAL-ADuM4135EBZ User Guide UG-854 SETTING UP THE EVAL-ADUM4135EBZ INITIAL CONFIGURATION PAD LAYOUT FOR THE DEVICE UNDER TEST (DUT) Before the first use, certain things must be completed to prepare the board for operation. In the stock configuration, the R1 to R6 resistors are not placed. These are the locations of the series external resistors for the charging and discharging paths to VOUT_ON and VOUT_OFF. It is recommended to use 1206 surfacemount resistors with values between approximately 1 Ω and 10 Ω, depending on the load being driven. An actual IGBT or MOSFET can be placed in the provided landing patterns to the right of P1 and P2. P1 and P2 allow shorting across the series external resistors to observe overshoot and/or allow the user to probe voltage to quantify peak currents. Figure 4 shows the top layer artwork for the dual gate driver circuit. • • • • U1 is the footprint for the ADuM4135. C1, C2, and C4 are 0.1 µF bypass capacitors; C3 and C5 are 10 µF bypass capacitors. The available footprint can be populated with TO-252 MOSFETs or IGBTs with the pinout shown in Figure 2. R1 to R6 are gate resistors that control the edges of the outputs. By default, no resistors are installed; these resistors must be populated with low value 1206 resistors, generally in the 1 Ω to 10 Ω range. In the stock configuration, the DESAT circuitry is left open. Before the first use, if DESAT functionality is not used, it is recommended to short the DESAT pin to ground, either by a wire or by placing a 0 Ω resistor in the C6 component pad. Failure to do so results in a DESAT fault being observed on the first rising edge of the output. R13 and R14 come with 10 kΩ resistors in place. These resistors provide pull ups to the READY and nFault pins. P3 allows for easy enabling and disabling of the device by means of jumper pins. A silkscreen reminder is included to show which pins to short to enable or disable the device. R8 and R10 allow for easy placement of 50 Ω terminating resistors, if desired. Pins accompany the screw terminals. It is left to the user to decide which connection mechanism to use. Do not leave VSS2 floating. It must always be at or less than the potential of GND2. Shorting VSS2 and GND2 is a valid operating point. During operation, if a fault is seen, the nFault pin is brought low. In this case, the device can be reset by either powering down VDD1 to VSS1 and powering back up, or by bringing the nRESET pin low then high again. The easiest way to toggle nRESET is to remove the jumper on P3 from Pin 2 and Pin 3 and then replace it. An internal pull-down resistor brings nRESET low on its own. 1 G 3 E/S 13301-002 If the DESAT circuitry is tested, an IGBT or MOSFET must be added to the circuit to allow for the DESAT pin to be pulled down during on times, preventing the DESAT fault. Additionally, C6, R12, and D1 must have appropriate components placed. For details about sizing, refer to the ADuM4135 data sheet. R11 is provided to allow extra DESAT blanking current by means of an external pull-up resistor. C7 can provide decoupling for this external pull-up current source, if desired. 2 C/D Figure 2. IGBT/MOSFET Footprint POWER CONNECTIONS Follow these steps to connect the EVAL-ADuM4135EBZ evaluation board to the power supply: 1. 2. Connect the 5 V or 3.3 V input supply with the positive terminal on VDD1 and the ground on VSS1. Connect the ADuM4135 VDD2 supply voltage (12 V to 30 V) to the VDD2 pin and its return to the VSS2 pin. VSS1 and VSS2 are functionally isolated. The emitter/source of the IGBT/MOSFET is tied to GND2. INPUT/OUTPUT CONNECTIONS The VI+ and VI− pins are CMOS inputs. R8 and R10 are provided in case the user needs to terminate the inputs with a 50 Ω load. R7 and R9 are provided as a place to put damping, if needed; however, in most cases, the 0 Ω resistors that comes in the stock configuration can remain on R7 and R9. The EVAL-ADuM4135EBZ evaluation board comes with screw terminals for both the input and output connections. These are to facilitate connection options but are not the best option for high performance transient testing. The best measurements performed on the load, whether it is an IGBT or MOSFET or a load capacitor, come from small loop measurements performed right at the load. Using the screw terminals as either the sensing node or for the connection of the load often results in overshoot being observed during measurement. Rev. 0 | Page 3 of 6 UG-854 EVAL-ADuM4135EBZ User Guide TP2 R9 ADuM4135 VSS1 R8 1 1 R10 VDD1 1 2 1 R14 3 Ready VSS2 16 6 VDD1 VI+ Gate Sense 15 Vout_on 14 R3 VI– C1 1 nReset VDD2 C4 VDD1 Desat 10 8 VSS1 VSS2 9 C5 P2 G R4 2 VSS2 C2 C GATE P1 C7 2 GND2 11 7 COL R1 R2 Ready VDD2 13 5 nFault Vout_off 12 nReset P3 VSS1 R15 VSS2 4 nFault GND1 nReset VDD1 R13 VI– VI+ EMI E R5 C3 R6 VDD2 2 DESAT R11 R12 C6 2 Figure 3. EVAL-ADuM4135EBZ Evaluation Board Schematic Rev. 0 | Page 4 of 6 D1 13301-003 R7 TP1 VDD2 GND2 VSS2 EVALUATION BOARD SCHEMATIC EVAL-ADuM4135EBZ User Guide UG-854 EVALUATION BOARD LAYOUT Figure 4. EVAL-ADuM4135EBZ Evaluation Board Top Layer Figure 5. EVAL-ADuM4135EBZ Evaluation Board Bottom Layer Rev. 0 | Page 5 of 6 UG-854 EVAL-ADuM4135EBZ User Guide ORDERING INFORMATION BILL OF MATERIALS Table 1. Quantity 1 3 2 3 1 Not applicable Reference Designator U1 C1, C2, C4 C3, C5 R7, R9, R15 R13, R14 R1 to R6, R8, R10 to R12, D1, C6, C7 Description ADuM4135RWZ IC Capacitor, 0.1 µF, 25 V, 10%, 1206 Capacitor, 10 µF, 25 V, 10%, 1206 Resistor, 0 Ω, 1/4 W, 1%, 1206 Resistor, 10 kΩ, 1/4 W, 1%, 1206 Not installed ESD Caution ESD (electrostatic discharge) sensitive device. Charged devices and circuit boards can discharge without detection. Although this product features patented or proprietary protection circuitry, damage may occur on devices subjected to high energy ESD. Therefore, proper ESD precautions should be taken to avoid performance degradation or loss of functionality. Legal Terms and Conditions By using the evaluation board discussed herein (together with any tools, components documentation or support materials, the “Evaluation Board”), you are agreeing to be bound by the terms and conditions set forth below (“Agreement”) unless you have purchased the Evaluation Board, in which case the Analog Devices Standard Terms and Conditions of Sale shall govern. Do not use the Evaluation Board until you have read and agreed to the Agreement. Your use of the Evaluation Board shall signify your acceptance of the Agreement. This Agreement is made by and between you (“Customer”) and Analog Devices, Inc. (“ADI”), with its principal place of business at One Technology Way, Norwood, MA 02062, USA. Subject to the terms and conditions of the Agreement, ADI hereby grants to Customer a free, limited, personal, temporary, non-exclusive, non-sublicensable, non-transferable license to use the Evaluation Board FOR EVALUATION PURPOSES ONLY. Customer understands and agrees that the Evaluation Board is provided for the sole and exclusive purpose referenced above, and agrees not to use the Evaluation Board for any other purpose. Furthermore, the license granted is expressly made subject to the following additional limitations: Customer shall not (i) rent, lease, display, sell, transfer, assign, sublicense, or distribute the Evaluation Board; and (ii) permit any Third Party to access the Evaluation Board. As used herein, the term “Third Party” includes any entity other than ADI, Customer, their employees, affiliates and in-house consultants. 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Modifications to the Evaluation Board must comply with applicable law, including but not limited to the RoHS Directive. TERMINATION. ADI may terminate this Agreement at any time upon giving written notice to Customer. Customer agrees to return to ADI the Evaluation Board at that time. LIMITATION OF LIABILITY. THE EVALUATION BOARD PROVIDED HEREUNDER IS PROVIDED “AS IS” AND ADI MAKES NO WARRANTIES OR REPRESENTATIONS OF ANY KIND WITH RESPECT TO IT. ADI SPECIFICALLY DISCLAIMS ANY REPRESENTATIONS, ENDORSEMENTS, GUARANTEES, OR WARRANTIES, EXPRESS OR IMPLIED, RELATED TO THE EVALUATION BOARD INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTY OF MERCHANTABILITY, TITLE, FITNESS FOR A PARTICULAR PURPOSE OR NONINFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS. IN NO EVENT WILL ADI AND ITS LICENSORS BE LIABLE FOR ANY INCIDENTAL, SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES RESULTING FROM CUSTOMER’S POSSESSION OR USE OF THE EVALUATION BOARD, INCLUDING BUT NOT LIMITED TO LOST PROFITS, DELAY COSTS, LABOR COSTS OR LOSS OF GOODWILL. ADI’S TOTAL LIABILITY FROM ANY AND ALL CAUSES SHALL BE LIMITED TO THE AMOUNT OF ONE HUNDRED US DOLLARS ($100.00). EXPORT. Customer agrees that it will not directly or indirectly export the Evaluation Board to another country, and that it will comply with all applicable United States federal laws and regulations relating to exports. GOVERNING LAW. This Agreement shall be governed by and construed in accordance with the substantive laws of the Commonwealth of Massachusetts (excluding conflict of law rules). Any legal action regarding this Agreement will be heard in the state or federal courts having jurisdiction in Suffolk County, Massachusetts, and Customer hereby submits to the personal jurisdiction and venue of such courts. The United Nations Convention on Contracts for the International Sale of Goods shall not apply to this Agreement and is expressly disclaimed. ©2015 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. UG13301-0-8/15(0) Rev. 0 | Page 6 of 6