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ADUM2250ARIZ-RL

更新时间： 2024-09-17 08:20:27
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亚德诺 - ADI /
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Hot-Swappable, Dual I2C Isolators, 5 kV

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ADUM2250ARIZ-RL 数据手册

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Hot-Swappable, Dual I2C Isolators, 5 kV  
Data Sheet  
ADuM2250/ADuM2251  
FEATURES  
Bidirectional I2C communication  
Open-drain interfaces  
GENERAL DESCRIPTION  
The ADuM2250/ADuM22511 are hot-swappable digital  
isolators with nonlatching bidirectional communication  
channels that are compatible with I2C® interfaces. This  
eliminates the need for splitting I2C signals into separate  
transmit and receive signals for use with standalone  
optocouplers.  
Suitable for hot-swap applications  
30 mA current sink capability  
1000 kHz operation  
3.0 V to 5.5 V supply/logic levels  
16-lead SOIC wide body package version (RW-16)  
16-lead SOIC wide body enhanced creepage version (RI-16)  
High temperature operation: 105°C  
Safety and regulatory approvals (RI-16 package)  
UL recognition: 5000 V rms for 1 minute per  
UL 1577  
CSA Component Acceptance Notice #5A  
IEC 60601-1: 250 V rms (reinforced)  
IEC 60950-1: 400 V rms (reinforced)  
VDE Certificate of Conformity  
The ADuM2250 provides two bidirectional channels support-  
ing a complete isolated I2C interface. The ADuM2251 provides  
one bidirectional channel and one unidirectional channel for  
those applications where a bidirectional clock is not required.  
The ADuM2250/ADuM2251 contain hot-swap circuitry to  
prevent data glitches when an unpowered card is inserted  
onto an active bus.  
These isolators are based on iCoupler® chip-scale transformer  
technology from Analog Devices, Inc. iCoupler is a magnetic  
isolation technology with performance, size, power consump-  
tion, and functional advantages compared to optocouplers.  
The ADuM2250/ADuM2251 integrate iCoupler channels  
with semiconductor circuitry to enable a complete, isolated  
I2C interface in a small form-factor package.  
DIN V VDE V 0884-10 (VDE V 0884-10):2006-12  
V
IORM = 846 V peak  
APPLICATIONS  
Isolated I2C, SMBus, or PMBus Interfaces  
Multilevel I2C interfaces  
Power supplies  
1 Protected by U.S. Patents 5,952,849; 6,873,065; and 7,075,329; other patents  
pending.  
Networking  
Power-over-Ethernet  
FUNCTIONAL BLOCK DIAGRAMS  
1
16  
15  
14  
13  
12  
1
16  
15  
14  
13  
12  
GND  
GND  
NC  
V
GND  
GND  
NC  
V
1
2
1
2
ADuM2250  
ADuM2251  
2
3
4
5
2
NC  
NC  
3
V
V
DD1  
NC  
DD2  
DD1  
DD2  
4
5
ENCODE  
DECODE  
ENCODE  
DECODE  
DECODE  
ENCODE  
ENCODE  
ENCODE  
DECODE  
DECODE  
NC  
NC  
DECODE  
ENCODE  
DECODE  
ENCODE  
NC  
SDA  
SCL  
GND  
SDA  
SDA  
SDA  
1
1
1
2
1
1
1
2
SCL  
SCL  
SCL  
6
7
8
11  
10  
9
6
7
8
11  
10  
9
2
2
GND  
NC  
GND  
NC  
GND  
NC  
NC  
2
2
NC = NO CONNECT  
NC = NO CONNECT  
Figure 1. ADuM2250 Functional Block Diagram  
Figure 2. ADuM2251 Functional Block Diagram  
Rev. A  
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 www.analog.com  
Fax: 781.461.3113 ©2007–2011 Analog Devices, Inc. All rights reserved.  
 
 
 
 
 
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ADUM2250ARIZ-RL 替代型号

型号 品牌 替代类型 描述 数据表
ADUM2250ARIZ ADI

完全替代

 Hot-Swappable, Dual I2C Isolators, 5 kV

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