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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
iCoupler ADuM347x Quad-Channel Isolators with Integrated Transformer Driver
FEATURES
2 independent ADuM347x circuits including 2.5 kV
isolated dc-to-dc converters
Single supply
5 V in to 5 V out (regulated)
Reconfigurable to 5 V in to 3.3 V out or 3.3 V in
to 3.3 V out
Double supply
5 V in to 15 V out (regulated) and 7.5 V out (unregulated)
Reconfigurable to 5 V in to 12 V out (regulated) and 6 V
out (unregulated)
4 isolated 25 Mbps data channels per ADuM347x circuit
Footprints for Coilcraft and Halo transformer options
Multiple switching frequency options
See the last page for an important warning and disclaimers.
Evaluation Board User Guide
Evaluation Board
GENERAL DESCRIPTION
The EVAL-ADuM3471EBZ demonstrates two separate
rms
applications for the ADuM347x family of quad-channel digital
isolators with integrated transformer drivers. It has two
independent power supply circuits: a double supply and a single
supply. The switching frequency can be set from 200 kHz to
1000 kHz. The board supports a variety of I/O configurations
and multiple transformer options. It is equipped with two
ADuM3471 isolators.
SUPPORTED iCoupler MODELS
ADuM3470
ADuM3471
ADuM3472
ADuM3473
ADuM3474
EVALUATION BOARD
Figure 1. ADuM3471 Evaluation Board
Rev. 0 | Page 1 of 16
UG-197
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Table of Contents
Related Manuals for Analog Devices UG-197
Summary of Contents for Analog Devices UG-197
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Page 1: Features
Evaluation Board User Guide UG-197 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 iCoupler ADuM347x Quad-Channel Isolators with Integrated Transformer Driver Evaluation Board FEATURES GENERAL DESCRIPTION The EVAL-ADuM3471EBZ demonstrates two separate 2 independent ADuM347x circuits including 2.5 kV... -
Page 2: Table Of Contents
UG-197 Evaluation Board User Guide TABLE OF CONTENTS Features ....................1 Schematic..................6 General Description ................. 1 Double Supply ..................7 Supported iCoupler models ............1 Terminals ..................7 Evaluation Board ................1 Transformer Selection ..............8 Revision History ................2 Switching Frequency Options............8 Other Secondary Isolated Supply Configurations .... -
Page 3: Single Supply
Evaluation Board User Guide UG-197 SINGLE SUPPLY Two independent and isolated circuits comprise the ADuM3471 (GND1 in the schematic). These are the only off-board evaluation board. The lower half of the board, shown in Figure connections required for the single supply to function. -
Page 4: Transformer Selection
UG-197 Evaluation Board User Guide ADuM3471 is equipped. C8, C10, C11, and C12 are 0603 pads The user can select a different switching frequency by removing for optional and unpopulated loads for the data outputs. R30 and R31 and then choosing R1 based on Figure 4. The board is configured for the 500 kHz setting by default. - Page 5 Evaluation Board User Guide UG-197 1MHz 1MHz 700kHz 700kHz 500kHz 500kHz 200kHz 200kHz LOAD CURRENT (mA) LOAD CURRENT (mA) Figure 5. 5 V In to 5 V Out Efficiency with the Coilcraft Transformer at Various Figure 7. 5 V In to 5 V Out Efficiency with the Halo Transformer at Various...
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Page 6: Schematic
UG-197 Evaluation Board User Guide SCHEMATIC Figure 9. Single Supply Schematic Rev. 0 | Page 6 of 16... -
Page 7: Double Supply
Evaluation Board User Guide UG-197 DOUBLE SUPPLY Power Connections, Output Power Connections, and Data I/O The second power supply implemented with the ADuM3471 on Connection sections. this evaluation board is a double supply. This circuit, which is shown in Figure 10, is located on the top half of the board. The... -
Page 8: Transformer Selection
UG-197 Evaluation Board User Guide Data I/O Connection TRANSFORMER SELECTION The EVAL-ADuM3471 supports a variety of I/O configurations. The EVAL-ADuM3471 supports multiple transformer options. The user has access to all four of the ADuM3471 isolated data The double supply is equipped with a Halo TGSAD-290V6LF channels via the terminals. - Page 9 Evaluation Board User Guide UG-197 1MHz 1MHz 700kHz 700kHz 500kHz 500kHz 200kHz 200kHz 10 20 30 40 50 10 20 30 40 50 LOAD CURRENT (mA) LOAD CURRENT (mA) Figure 14. 5 V In to 15 V Out Efficiency with the Halo Transformer at Various Figure 12.
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Page 10: Other Secondary Isolated Supply Configurations
UG-197 Evaluation Board User Guide −15 V supply. Short-circuiting R21 instead of R22 connects the OTHER SECONDARY ISOLATED SUPPLY transformer center tap to the ground plane instead of the node CONFIGURATIONS where L3, C20, and C27 are connected. Figure 16 shows which... -
Page 11: Evaluation Board Layout
Evaluation Board User Guide UG-197 EVALUATION BOARD LAYOUT Figure 18. Top Layer: Power Fill Figure 20. Layer 3: Power Plane Figure 19. Layer 2: Ground Plane Figure 21. Bottom Layer: Ground Fill Rev. 0 | Page 11 of 16... -
Page 12: Ordering Information
CON-PCB terminal, 6x1 header, 0.1 inch spacing Sullins Connector Solutions CON-PCB terminal, 7x1 header, 0.1 inch spacing Sullins Connector Solutions U1, U2 ADuM3471 Analog Devices, Inc. D1 to D6 Schottky barrier rectifier, 0.5 A, 40 V, SMD, SOD-123 ON Semi/MBR0540 Transformer, 1:2 turns ratio, SMD Halo/TGSAD-260V6LF... - Page 13 Evaluation Board User Guide UG-197 NOTES Rev. 0 | Page 13 of 16...
- Page 14 UG-197 Evaluation Board User Guide NOTES Rev. 0 | Page 14 of 16...
- Page 15 Evaluation Board User Guide UG-197 NOTES Rev. 0 | Page 15 of 16...
- Page 16 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.
- Page 17 Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Analog Devices Inc. EVAL-ADUM3471EBZ...
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