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ADUM5020-3BRWZ

更新时间： 2024-09-20 02:49:51
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亚德诺 - ADI /
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20页 548K
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Low Emission, Isolated DC-to-DC Converters

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Low Emission,  
Isolated DC-to-DC Converters  
Data Sheet  
ADuM5020/ADuM5028  
FEATURES  
FUNCTIONAL BLOCK DIAGRAMS  
isoPower integrated, isolated dc-to-dc converter  
100 mA output current for ADuM5020  
60 mA output current for ADuM5028  
Meets CISPR22 Class B emissions limits at full load on a  
2-layer PCB  
16-lead SOIC_W package with 7.8 mm minimum creepage  
8-lead SOIC_IC package with 8.3 mm minimum creepage  
High temperature operation: 125°C maximum  
Safety and regulatory approvals  
1
2
3
4
5
6
7
8
16  
NIC  
NIC  
ADuM5020  
15 GND  
GND  
ISO  
ISO  
ISO  
ISO  
1
14  
13  
12  
11  
10  
9
V
SEL  
PDIS  
PCS  
GND  
V
GND  
1
OSC  
V
RECT  
REG  
DDP  
ISO  
GND  
1
GND  
NIC  
NIC  
GND  
1
GND  
UL recognition (pending)  
NIC = NO INTERNAL CONNECTION. LEAVE THIS PIN FLOATING.  
3000 V rms for 1 minute per UL 1577  
CSA Component Acceptance Notice 5A (pending)  
VDE certificate of conformity (pending)  
VDE V 0884-10  
Figure 1. ADuM5020 Functional Block Diagram  
V
IORM = 565 V peak  
ADuM5028  
CQC certification per GB4943.1-2011 (pending)  
8
7
6
5
V
SEL  
PDIS  
1
2
3
4
PCS  
GND  
1
GND  
APPLICATIONS  
ISO  
V
OSC  
V
RECT  
REG  
DDP  
ISO  
RS-485/RS-422/CAN transceiver power  
Power supply start-up bias and gate drives  
Isolated sensor interfaces  
GND  
1
GND  
ISO  
Figure 2. ADuM5028 Functional Block Diagram  
Industrial PLCs  
GENERAL DESCRIPTION  
The ADuM5020 and ADuM50281 are isoPower®, integrated,  
isolated dc-to-dc converters. Based on the Analog Devices, Inc.,  
iCoupler® technology, these dc-to-dc converters provide  
regulated, isolated power that is below CISPR22 Class B limits at  
full load on a 2-layer printed circuit board (PCB) with ferrites.  
Common voltage combinations and the associated current  
output levels are shown in Table 1 through Table 6.  
The ADuM5020 and ADuM5028 isolated dc-to-dc converters  
provide two different package variants: the ADuM5020 in a  
wide body, 16-lead SOIC_W package, and the ADuM5028 in  
the space saving, 8-lead, wide body SOIC_IC. For 5 V input  
operations, use the ADuM5020-5BRWZ and the ADuM5028-  
5BRIZ. For 3.3 V input to 3.3 V output operations, use the  
ADuM5020-3BRWZ and the ADuM5028-3RIZ. See the Pin  
Configuration and Function Descriptions section and the  
Ordering Guide for more information.  
The ADuM5020 and ADuM5028 eliminate the need to design  
and build isolated dc-to-dc converters in applications up to  
500 mW. The iCoupler chip scale transformer technology is used  
for the magnetic components of the dc-to-dc converter. The  
result is a small form factor, isolated solution.  
1 Protected by U.S. Patents 5,952,849; 6,873,065; 6,903,578; and 7,075,329. Other patents are pending.  
Rev. A Document Feedback  
Information furnished by Analog Devices is believed to be accurate and reliable. However, no  
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other  
rights of third parties that may result from its use. Specifications subject to change without notice. No  
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.  
Trademarks and registeredtrademarks arethe property of their respective owners.  
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.  
Tel: 781.329.4700  
©2018 Analog Devices, Inc. All rights reserved.  
Technical Support  
www.analog.com  
 
 
 
 
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