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ADUM6422A

更新时间： 2024-11-28 02:45:55
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亚德诺 - ADI /
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Quad-Channel Isolators with Integrated DC-to-DC Converter

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ADUM6422A 数据手册

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Quad-Channel Isolators with  
Integrated DC-to-DC Converter  
Data Sheet  
ADuM6420A/ADuM6421A/ADuM6422A  
FEATURES  
FUNCTIONAL BLOCK DIAGRAM  
isoPower integrated, isolated dc-to-dc converter  
100 mA output supply  
Meets CISPR 32/EN55032 Class B emission limits up to  
5 Mbps at a full load on a 2-layer PCB  
Quad dc to 100 Mbps signal isolation channels  
28-lead, fine pitch, SOIC with 8.3 mm minimum creepage  
High temperature operation: 125°C maximum  
High common-mode transient immunity: 100 kV/μs  
Safety and regulatory approvals (pending)  
UL recognition (pending)  
1
2
3
28  
27  
26  
V
V
DD2  
DD1  
GND  
GND  
V
GND  
GND  
1
1
2
2
4
5
25  
24  
23  
22  
21  
20  
V
4-CHANNEL iCoupler CORE  
LOW POWER ON-OFF KEYING  
IA  
IB  
OA  
V
V
OB  
ADuM6420A/  
ADuM6421A/  
ADuM6422A  
V
V
/V  
V
V
/V  
6
IC OC  
OC IC  
/V  
7
/V  
ID OD  
OD ID  
LOW RADIATED EMISSIONS DC TO DC  
PCS  
GND  
1
8
GND  
2
PDIS  
9
V
SEL  
5000 V rms for 1 minute per UL 1577  
CSA Component Acceptance Notice 5A (pending)  
VDE V 0884-11 certificate of conformity (pending)  
GND  
1
10  
11  
12  
13  
14  
19 GND  
ISO  
V
OSC  
18  
RECT REG  
V
DDP  
ISO  
V
IORM = 566 V peak  
17 GND  
GND  
1
ISO  
16  
15  
NIC  
NIC  
APPLICATIONS  
GND  
1
GND  
ISO  
RS-232 transceivers  
Power supply start-up bias and gate drives  
Isolated sensor interfaces  
Industrial programmable logic controllers (PLCs)  
NIC = NO INTERNAL CONNECTION. LEAVE THIS PIN FLOATING.  
Figure 1.  
GENERAL DESCRIPTION  
The ADuM6420A/ADuM6421A/ADuM6422A1 are quad-channel  
digital isolators with an isoPower®, integrated, isolated dc-to-dc  
converter. Based on the Analog Devices, Inc., iCoupler®  
technology, the dc-to-dc converter provides regulated, isolated  
power that meets CISPR 32/EN 55032 Class B limits at a full  
load on a 2-layer printed circuit board (PCB) with ferrites.  
Popular voltage combinations and the associated output  
current levels are listed in Table 1.  
The ADuM6420A/ADuM6421A/ADuM6422A isolators  
provide four independent isolation channels (see the Pin  
Configurations and Function Descriptions for additional  
information).  
Table 1. ADuM6420A/ADuM6421A/ADuM6422A Output  
Current Levels  
ISO Current, IISO (mA)  
VDDP (V)  
VISO (V)  
5
3.3  
85°C  
100  
100  
60  
105°C  
65  
65  
125°C  
30  
30  
The ADuM6420A/ADuM6421A/ADuM6422A eliminate the  
need for a separate, isolated dc-to-dc converter in 500 mW,  
isolated designs. The iCoupler chip scale transformer technology  
is used for isolated logic signals and for the magnetic components  
of the dc-to-dc converter. The result is a small form factor, total  
isolation solution.  
5
5
3.3  
3.3  
60  
20  
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 are the property of their respective owners.  
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.  
Tel: 781.329.4700 ©2019–2020 Analog Devices, Inc. All rights reserved.  
Technical Support  
www.analog.com  
 
 
 
 
 
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