EVAL-ADUM4120-1EBZ - ANALOG DEVICES

EVAL-ADuM4120EBZ/EVAL-ADuM4120-1EBZ User Guide

UG-1109

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 ADuM4120 and ADuM4120-1 Isolated Precision Gate

Drivers with 2 A Output

PLEASE SEE THE LAST PAGE FOR AN IMPORTANT

WARNING AND LEGAL TERMS AND CONDITIONS. Rev. 0 | Page 1 of 5

FEATURES

2 A peak drive output capability

Output power device resistance: <2 Ω

Low propagation delay: <51 ns

Operating temperature range: −40°C to +125°C

Output voltage range to 35 V

Output and input undervoltage lockout (UVLO)

Pad placement for multiple switch types

Screw terminals for easy connectivity

EVALUATION KIT CONTENTS

EVAL-ADuM4120EBZ evaluation board or the EVAL-

ADuM4120-1EBZ 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

GENERAL DESCRIPTION

The evaluation boards EVAL-ADuM4120EBZ and EVAL-

ADuM4120-1EBZ support the ADuM4120/ADuM4120-1

single-channel gate drivers with an integrated miller clamp.

Analog Devices, Inc., iCoupler® technology provides isolation

between the input signal and the output gate driver. The EVAL-

ADuM4120-1EBZ option is populated with the ADuM4120-1

that does not contain an internal input glitch filter, resulting in

lower propagation delays.

The instructions and components in this user guide apply to

both the EVAL-ADuM4120EBZ and EVAL-ADuM4120-1EBZ.

The ADuM4120/ADuM4120-1 provides operation with voltages of

up to 35 V. The high common-mode transient immunity (CMTI)

and robust drive strength makes the ADuM4120/ADuM4120-1

an excellent fit for fast switching technologies.

The EVAL-ADuM4120EBZ evaluation board facilitates testing of

the propagation delay, drive strength, and input logic of the device.

For complete information about the ADuM4120/ADuM4120-1,

refer to the ADuM4120/ADuM4120-1 data sheet that should be

consulted in conjunction with this user guide when using the

evaluation board.

EVAL-ADuM4120EBZ EVALUATION BOARD

15606-001

Figure 1.

UG-1109 EVAL-ADuM4120EBZ/EVAL-ADuM4120-1EBZ User Guide

Rev. 0 | Page 2 of 5

TABLE OF CONTENTS

Features........................................................................................... 1

Evaluation Kit Contents ................................................................ 1

Equipment Needed ........................................................................ 1

General Description ...................................................................... 1

E VA L -ADuM4120EBZ Evaluation Board ................................... 1

Revision History ............................................................................ 2

Setting Up the E VA L -ADuM4120EBZ and EVAL-ADuM4120-

1EBZ ............................................................................................... 3

Initial Configuration ................................................................. 3

Pad Layout for the Device Under Test (DUT)......................... 3

Power Connections.................................................................... 3

Input/Output Connections ....................................................... 3

Evaluation Board Schematics and Artwork ................................. 4

Ordering Information ................................................................... 5

Bill of Materials .......................................................................... 5

REVISION HISTORY

4/2017—R e vision 0 : Initial Version

EVAL-ADuM4120EBZ/EVAL-ADuM4120-1EBZ User Guide UG-1109

Rev. 0 | Page 3 of 5

SETTING UP THE EVAL-ADUM4120EBZ AND EVAL-ADUM4120-1EBZ

INITIAL CONFIGURATION

Before initial use, certain steps must be completed to prepare the

E VA L -ADuM4120EBZ or E VA L -ADuM4120-1EBZ 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 surface-

mount resistors with values between approximately 1 Ω and 10 Ω,

depending on the load being driven. R1 and R2 provide parallel

placements, whereas R3 and R4 are in series. An actual insulated

gate bipolar transistor (IGBT) or metal-oxide semiconductor

field effect transistor (M OSFET) 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.

Resistor R6 is provided if the user must terminate the VIN input

with a 50 Ω load. Placing a jumper in P4 connects the stock 50 Ω

load to the VIN pin. R6 is not required, and, if the P4 jumper is not

placed, the evaluation board accepts high impedance signal

generator signals.

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 Jumpe r P6 is far from the gate

driver and introduces parasitic inductances to the measurement.

Jumper P3 allows the user to tie the VIN pin to VDD1 or GND1

quickly. If a jumper is installed in P3, do not attempt to drive the

VIN pin by an e xterna l signa l gene rator because this causes a short

condition. Only active ly drive VIN when no jumper is placed in P3.

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 ADuM4120 or ADuM4120-1.

• C1 and C2 are 0.1 µF bypass capacitors; C3 is a 10 µF

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 Ω to 10 Ω range.

C/D

E/S

15606-002

Figure 2. IGBT/MOSFET Footprint

POWER CONNECTIONS

Follow these steps to connect the ADuM4120 or ADuM4120-1

evaluation board to a power supply:

1. Connect the input supply (2.5 V to 5.5 V) with the positive

terminal on VDD1 and the ground on GND1.

2. Connect the ADuM4120 or ADuM4120-1 VDD2 supply

voltage (4.5 V to 35 V) to the VDD2 pin and return to the

GND2 pin.

GND1 and GND2 are isolated from each other. The

emitter/source of the IGBT or MOSFET is tied to GND2.

INPUT/OUTPUT CONNECTIONS

The VIN pin is a complementary metal-oxide semiconductor

(CMOS) input. To drive the gate driver with positive logic,

connect the input signal to the VIN pin.

The E VA L -ADuM4120EBZ evaluation board has 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 extra overshoot during measurement.

UG-1109 EVAL-ADuM4120EBZ/EVAL-ADuM4120-1EBZ User Guide

Rev. 0 | Page 4 of 5

EVALUATION BOARD SCHEMATICS AND ARTWORK

ADuM4120

VDD1

VIN

GND1

VDD2

VOUT

GND2G

R3 R4

E/S

GATE

C/D

GATE

C/D

E/S

C2 C3

Q1, Q2, Q3

1VDD1

VIN

VDD1

GND1

VDD2

GND2

VDD2

GND2

VDD2

15606-003

Figure 3. Schematic of the EVAL-ADuM4120EBZ

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Figure 4. EVAL-ADuM4120EBZ Evaluation Board Top Layer

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Figure 5. EVAL-ADuM4120EBZ Evaluation Board Bottom Layer

EVAL-ADuM4120EBZ/EVAL-ADuM4120-1EBZ User Guide UG-1109

Rev. 0 | Page 5 of 5

ORDERING INFORMATION

BILL OF MATERIALS

Table 1.

Reference Designator Description

U1 ADuM4120ARIZ or ADuM4120-1ARIZ

R6 Resistor, 50 Ω, 1/8 W, 1206

C1, C2 Capacitor, 0.1 μF, 25 V, 10%, 1206

C3 Capacitor, 10 μF, 50 V, 10%, 1206

R1 to R5, Q1 to Q3 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.

registered trademarks are the property of their respective owners.

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