EVAL-ADuM4121EBZ/EVAL-ADuM4121-1EBZ User Guide UG-1041 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 ADuM4121 and ADuM4121-1 iCoupler, High Voltage, Isolated Gate Drivers with Internal Miller Clamp, 2 A Output FEATURES GENERAL DESCRIPTION 2 A peak drive output capability Output power device resistance: <2 Low propagation delay: <51 ns Operating temperature range: -40C to +125C Output voltage range to 35 V Output and input undervoltage lockout (UVLO) Pad placement for multiple switch types Screw terminals for easy connectivity The EVAL-ADuM4121EBZ and EVAL-ADuM4121-1EBZ evaluation boards support the ADuM4121/ADuM4121-1 single-channel gate drivers with an integrated miller clamp. Analog Devices, Inc., iCoupler(R) technology provides isolation between the input signal and the output gate driver. The EVALADuM4121-1EBZ option is populated with the ADuM4121-1 which does not contain an internal thermal shutdown and does not shutdown the output in case of junction temperatures above 155C (typical). EVALUATION KIT CONTENTS The ADuM4121 provides operation with voltages of up to 35 V. The integrated miller clamp activates on the falling edge of an edge transition to further clamp the output low to counteract miller turn on effects. EVAL-ADuM4121EBZ evaluation board or the EVALADuM4121-1EBZ evaluation board EQUIPMENT NEEDED Suggested test equipment Primary side power supply: 0 V to 6 V at 100 mA Secondary side supply: 0 V to 35 V at 250 mA Square wave generator: 0 V to 5 V The EVAL-ADuM4121EBZ evaluation board facilitates testing of the propagation delay, drive strength, miller clamp functionality, and input logic of the device. For complete information about the ADuM4121/ADuM4121-1, refer to the ADuM4121/ADuM4121-1 data sheet that should be consulted in conjunction with this user guide when using the evaluation board. 14970-001 EVAL-ADUM4121EBZ EVALUATION BOARD Figure 1. PLEASE SEE THE LAST PAGE FOR AN IMPORTANT WARNING AND LEGAL TERMS AND CONDITIONS. Rev. 0 | Page 1 of 5 UG-1041 EVAL-ADuM4121EBZ/EVAL-ADuM4121-1EBZ User Guide TABLE OF CONTENTS Features .............................................................................................. 1 Initial Configuration .....................................................................3 Evaluation Kit Contents ................................................................... 1 Pad Layout for the Device Under Test (DUT)...........................3 Equipment Needed ........................................................................... 1 Power Connections .......................................................................3 General Description ......................................................................... 1 Input/Output Connections ..........................................................3 EVAL-ADuM4136EBZ Evaluation Board ..................................... 1 Evaluation Board Schematics and Artwork ...................................4 Revision History ............................................................................... 2 Ordering Information .......................................................................5 Setting Up the EVAL-ADuM4121EBZ or EVAL-ADuM41211EBZ ................................................................................................... 3 Bill of Materials ..............................................................................5 REVISION HISTORY 10/2016--Revision 0: Initial Version Rev. 0 | Page 2 of 5 EVAL-ADuM4121EBZ/EVAL-ADuM4121-1EBZ User Guide UG-1041 SETTING UP THE EVAL-ADUM4121EBZ OR EVAL-ADUM4121-1EBZ INITIAL CONFIGURATION 2 C/D 1 G 3 E/S 14970-002 Before initial use, certain steps must be completed to prepare the EVAL-ADuM4121EBZ or EVAL-ADuM4121-1EBZ evaluation board for operation. In the stock configuration (see Figure 1), the R1 to R4 resistors are not placed. These are the locations of the series external resistors for the charging and discharging paths of the device being driven. It is recommended to use 1206 surfacemount resistors with values between approximately 1 and 10 , depending on the load being driven. R1 and R2 provide to parallel placements, while R3 and R4 are in series. An actual insulated gate bipolar transistor (IGBT) or metal-oxide semiconductor field effect transistor (MOSFET) can be placed in the provided Q1, Q2, or Q3 landing patterns. Jumper P1 allows shorting across the series external resistors to observe overshoot and/or allow the user to probe voltage to quantify peak currents. Figure 2. IGBT/MOSFET Footprint POWER CONNECTIONS Resistors R6 and R7 are provided if the user desires to terminate the inputs VI+ and VI- with 50 loads. R6 and R7 are not required, and, if not placed, the evaluation board accepts high impedance signal generator signals. Follow these steps to connect the ADuM4121 or ADuM4121-1 evaluation board to a power supply: Pins accompany the screw terminals. The user decides which connection mechanism to use. The screw terminals aid in connecting wires for longer term measurements, but are not recommended for placement of the devices being driven. The distance to the screw terminals for Jumper P8 is far from the gate driver and introduces parasitic inductances to the measurement. 2. Jumpers P3 and P4 allow the user to tie the VI+ and/or VI- pins to VDD1 or GND1 quickly. If using P3 and/or P4, do not attempt to drive the pin that is jumpered by an external signal generator. PAD LAYOUT FOR THE DEVICE UNDER TEST (DUT) Figure 2 shows the top layer artwork for the dual-gate driver circuit. Evaluation board components include the following: * * * * U1 is the footprint for the ADuM4121 or ADuM4121-1. C1 and C2 are 0.1 F bypass capacitors; C3 is a 10 F bypass capacitor. Q1, Q2, and Q3 can be populated with TO-246, TO-252, or TO-220 MOSFETs or IGBTs (see Figure 2). R1 to R4 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 to 10 range. 1. Connect the input supply (2.5 V to 5.5 V) with the positive terminal on VDD1 and the ground on GND1. Connect the ADuM4121 or ADuM4121-1 VDD2 supply voltage (4.5 V to 35 V) to the VDD2 pin and return to the GND2 pin. GND1 and GND2 are isolated. The emitter/source of the IGBT/MOSFET is tied to GND2. INPUT/OUTPUT CONNECTIONS The VI+ and VI- pins are complementary metal oxide semiconductor (CMOS) inputs. To drive the gate driver with positive logic, tie VI- to GND1 and connect the input signal to the VI+ pin. To drive the gate drive with negative logic, connect VI+ to VDD1, and connect the input signal to VI-. VI- can also be used as a disable pin. By driving VI- high, the output remains low regardless of the signal at the VI+ pin. The EVAL-ADuM4121EBZ evaluation board comes with screw terminals for both the input and output connections. These terminals 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, MOSFET, or load capacitor, come from small loop measurements performed at the load. Using the screw terminals as either the sensing node or for the connection of the load often results in observing overshoot during measurement. Rev. 0 | Page 3 of 5 UG-1041 EVAL-ADuM4121EBZ/EVAL-ADuM4121-1EBZ User Guide 1 VDD1 P3 VDD1 VI+ VI+ VI- R6 GND1 1 1 P6 VDD1 1 P4 VDD1 VI- C1 1 VDD1 2 3 4 VDD2 VDD2 8 VIN+ VOUT 7 VIN- CLAMP 6 GND1 GND2 5 P1 C Q1, Q2, Q3 GATE 2 G GND2 C2 C3 R1 R2 R3 1 C/D VDD2 P7 2 P2 R7 1 1 P8 GATE C/D E/S R5 14970-004 Figure 3. Schematic of the EVAL-ADuM4121EBZ 14970-005 Figure 4. EVAL-ADuM4121EBZ Evaluation Board Top Layer Figure 5. EVAL-ADuM4121EBZ Evaluation Board Bottom Layer Rev. 0 | Page 4 of 5 E/S 2 R4 GND1 E 14970-003 P5 ADuM4121 VDD2 GND2 EVALUATION BOARD SCHEMATICS AND ARTWORK EVAL-ADuM4121EBZ/EVAL-ADuM4121-1EBZ User Guide UG-1041 ORDERING INFORMATION BILL OF MATERIALS Table 1. Reference Designator U1 R5 C1, C2 C3 R1 to R4, R6, R7, Q1, Q2, Q3 Description ADuM4121 or ADuM4121-1 Resistor, 0 k, 1206 Capacitor, 0.1 F, 25 V, 10%, 1206 Capacitor, 10 F, 50 V, 10%, 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. The Evaluation Board is NOT sold to Customer; all rights not expressly granted herein, including ownership of the Evaluation Board, are reserved by ADI. CONFIDENTIALITY. This Agreement and the Evaluation Board shall all be considered the confidential and proprietary information of ADI. Customer may not disclose or transfer any portion of the Evaluation Board to any other party for any reason. Upon discontinuation of use of the Evaluation Board or termination of this Agreement, Customer agrees to promptly return the Evaluation Board to ADI. ADDITIONAL RESTRICTIONS. Customer may not disassemble, decompile or reverse engineer chips on the Evaluation Board. Customer shall inform ADI of any occurred damages or any modifications or alterations it makes to the Evaluation Board, including but not limited to soldering or any other activity that affects the material content of the Evaluation Board. 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. (c)2016 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. UG14970-0-10/16(0) Rev. 0 | Page 5 of 5