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ADUM6404

更新时间： 2024-11-24 06:36:27
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亚德诺 - ADI 转换器
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Quad-Channel Isolators with Integrated DC-to-DC Converter

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Quad-Channel Isolators with  
Integrated DC-to-DC Converter  
ADuM6400/ADuM6401/ADuM6402/ADuM6403/ADuM6404  
FUNCTIONAL BLOCK DIAGRAMS  
FEATURES  
isoPower integrated, isolated dc-to-dc converter  
Regulated 3.3 V or 5 V output  
Up to 500 mW output power  
Quad dc-to-25 Mbps (NRZ) signal isolation channels  
Schmitt trigger inputs  
16-lead SOIC package with 7.6 mm creepage  
High temperature operation: 105°C  
High common-mode transient immunity: >25 kV/μs  
Safety and regulatory approvals (pending)  
UL recognition  
OSC  
RECT  
REG  
1
2
3
4
5
6
7
8
16  
V
V
DD1  
ISO  
GND  
15 GND  
1
ISO  
V
V
V
V
/V  
14  
13  
12  
11  
10  
9
V
V
V
V
V
/V  
IA OA  
IA OA  
4-CHANNEL iCOUPLER CORE  
/V  
/V  
IB OB  
IB OB  
ADuM6400/ADuM6401/  
ADuM6402/ADuM6403/  
ADuM6404  
/V  
/V  
IC OC  
IC OC  
/V  
ID OD  
/V  
ID OD  
V
DDL  
SEL  
GND  
GND  
ISO  
1
5000 V rms for 1 minute per UL1577  
CSA Component Acceptance Notice #5A  
IEC 60950-1: 600 V rms (reinforced)  
IEC 60601-1: 250 V rms (reinforced)  
VDE certificate of conformity  
Figure 1. ADuM640x Block Diagram  
V
V
IA  
OA  
3
4
5
6
14  
13  
12  
11  
V
V
V
V
V
V
IB  
IC  
ID  
OB  
OC  
OD  
ADuM6400  
DIN V VDE V 0884-10 (VDE V 0884-10):2006-12  
V
IORM = 560 V peak  
Figure 2. ADuM6400  
V
V
IA  
OA  
APPLICATIONS  
3
4
5
6
14  
13  
12  
11  
V
V
V
V
V
IB  
IC  
OB  
OC  
ID  
RS-232/RS-422/RS-485 transceivers  
Medical isolation  
AC/dc power supply startup bias and gate drives  
Isolated sensor interface  
ADuM6401  
V
OD  
Figure 3. ADuM6401  
V
V
IA  
OA  
GENERAL DESCRIPTION  
3
4
5
6
14  
13  
12  
11  
V
V
V
V
IB  
OC  
OD  
OB  
IC  
The ADuM640x1 devices are quad-channel digital isolators with  
isoPower®, an integrated, isolated dc-to-dc converter. Based on  
the Analog Devices, Inc., iCoupler® technology, the dc-to-dc  
converter provides up to 500 mW of regulated, isolated power at  
either 5.0 V or 3.3 V from a 5.0 V input supply, or 3.3 V from a  
3.3 V supply at the power levels shown in Table 1. This eliminates  
the need for a separate, isolated dc-to-dc converter in low power,  
isolated designs. The iCoupler chip scale transformer technology  
is used to isolate the logic signals and for the magnetic components  
of the dc-to-dc converter. The result is a small form factor, total  
isolation solution.  
V
V
ADuM6402  
ID  
Figure 4. ADuM6402  
V
V
IA  
OA  
3
4
5
6
14  
13  
12  
11  
V
V
V
V
V
V
OB  
OC  
OD  
IB  
IC  
ID  
ADuM6403  
Figure 5. ADuM6403  
V
V
IA  
OA  
3
4
5
6
14  
13  
12  
11  
V
V
V
V
IB  
IC  
ID  
OB  
OC  
OD  
The ADuM640x isolators provide four independent isolation  
channels in a variety of channel configurations and data rates  
(see the Ordering Guide for more information).  
V
V
ADuM6404  
isoPower uses high frequency switching elements to transfer  
power through its transformer. Special care must be taken  
during printed circuit board (PCB) layout to meet emissions  
standards. Refer to the AN-0971 application note for board  
layout recommendations at www.analog.com.  
Figure 6. ADuM6404  
Table 1. Power Levels  
Input Voltage (V)  
Output Voltage (V)  
Output Power (mW)  
5
5
500  
330  
200  
5
3.3  
3.3  
3.3  
1
Protected by U.S. Patents 5,952,849; 6,873,065; 6,903,578; and 7,075,329. Other patents are pending.  
Rev. 0  
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  
Fax: 781.461.3113  
www.analog.com  
©2009 Analog Devices, Inc. All rights reserved.  
 
 
 
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