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ADuM3221WBRZ-RL7 PDF预览

ADuM3221WBRZ-RL7

更新时间： 2024-11-21 12:29:47
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亚德诺 - ADI 驱动器栅极栅极驱动
页数 文件大小 规格书
16页 614K
描述
Isolated, 4 A Dual-Channel Gate Driver

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ADuM3221WBRZ-RL7 数据手册

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Isolated, 4 A Dual-Channel Gate Driver  
Data Sheet  
ADuM3220/ADuM3221  
FEATURES  
GENERAL DESCRIPTION  
The ADuM3220/ADuM32211 are isolated, 4 A dual-channel gate  
4 A peak output current  
Precise timing characteristics  
drivers based on the Analog Devices, Inc., iCoupler® technology.  
60 ns maximum isolator and driver propagation delay  
5 ns maximum channel-to-channel matching  
High junction temperature operation: 125°C  
3.3 V to 5 V input logic  
Combining high speed CMOS and monolithic transformer technol-  
ogy, these isolation components provide outstanding performance  
characteristics superior to the alternatives, such as the combination  
of pulse transformers and gate drivers.  
4.5 V to 18 V output drive  
The ADuM3220/ADuM3221 provide digital isolation in two  
independent isolation channels. They have a maximum propagation  
delay of 60 ns and 5 ns channel-to-channel matching. In comparison  
to gate drivers that employ high voltage level translation method-  
ologies, the ADuM3220/ADuM3221 offer the benefit of true,  
galvanic isolation between the input and each output, enabling  
voltage translation across the isolation barrier. The ADuM3220  
has shoot-through protection logic, which prevents both outputs  
from being on at the same time, whereas the ADuM3221 allows  
both outputs to be on at the same time. Both parts offer a default  
output low characteristic as required for gate drive applications.  
UVLO at 2.5 V VDD1  
ADuM3220A/ADuM3221A UVLO at 4.1 V VDD2  
ADuM3220B/ADuM3221B UVLO at 7.0 V VDD2  
Thermal shutdown protection at >150°C  
Output shoot-through logic protection on the ADuM3220  
Default low output  
High frequency operation: dc to 1 MHz  
CMOS input logic levels  
High common-mode transient immunity: >25 kV/μs  
Enhanced system-level ESD performance per IEC 61000-4-x  
Safety and regulatory approvals  
The ADuM3220/ADuM3221 operate with an input supply voltage  
ranging from 3.0 V to 5.5 V, providing compatibility with lower  
voltage systems. The outputs of the ADuM3220A/ADuM3221A  
can be operated at supply voltages from 4.5 V to 18 V. The outputs  
of the ADuM3220B/ADuM3221B can be operated at supply  
voltages from 7.6 V to 18 V.  
UL recognition  
2500 V rms for 1 minute per UL 1577  
CSA Component Acceptance Notice #5A  
VDE certificate of conformity  
DIN V VDE V 0884-10 (VDE V 0884-10):2006-12  
V
IORM = 560 V peak  
Small footprint and low profile  
Narrow body, RoHS-compliant, 8-lead SOIC  
5 mm × 6 mm × 1.6 mm  
The junction temperature of the ADuM3220/ADuM3221 is  
specified from −40°C to +125°C.  
Qualified for automotive applications  
APPLICATIONS  
Isolated synchronous dc-to-dc converters  
MOSFET/IGBT gate drivers  
FUNCTIONAL BLOCK DIAGRAMS  
ADuM3220  
ADuM3221  
1
2
8
7
1
2
8
7
V
V
V
V
V
V
DD1  
DD2  
OA  
DD1  
DD2  
OA  
DECODE  
AND  
DECODE  
AND  
ENCODE  
ENCODE  
ENCODE  
V
V
IA  
IA  
LEVEL  
SHIFT  
LEVEL  
SHIFT  
DECODE  
AND  
LEVEL  
SHIFT  
DECODE  
AND  
LEVEL  
SHIFT  
3
4
ENCODE  
6
5
3
4
6
5
V
V
V
V
IB  
OB  
IB  
OB  
GND  
GND  
GND  
GND  
2
1
2
1
Figure 1.  
Figure 2.  
1 Protected by U.S. Patents 5,952,849; 6,873,065; 7,075,239.  
Rev. C 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 ©2010–2012 Analog Devices, Inc. All rights reserved.  
Technical Support  
www.analog.com  
 
 
 
 
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