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ADUM1234BRWZ-RL1 PDF预览

ADUM1234BRWZ-RL1

更新时间： 2024-11-24 04:04:51
品牌 Logo 应用领域
亚德诺 - ADI 驱动器
页数 文件大小 规格书
12页 278K
描述
Isolated, Precision Half-Bridge Driver, 0.1 A Output

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ADUM1234BRWZ-RL1 数据手册

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Isolated, Precision  
Half-Bridge Driver, 0.1 A Output  
ADuM1234  
FEATURES  
GENERAL DESCRIPTION  
Isolated high-side and low-side outputs  
High side or low side relative to input: 700 VPEAK  
High-side/low-side differential: 700 VPEAK  
0.1 A peak output current  
The ADuM12341 is an isolated, half-bridge gate driver that  
employs the Analog Devices, Inc. iCoupler® technology to  
provide independent and isolated high-side and low-side  
outputs. Combining high speed CMOS and monolithic  
transformer technology, this isolation component provides  
outstanding performance characteristics superior to  
optocoupler-based solutions.  
CMOS input threshold levels  
High frequency operation: 5 MHz maximum  
High common-mode transient immunity: >75 kV/μs  
High temperature operation: 105°C  
Wide body, RoHS compliant, 16-lead SOIC  
UL1577 2500 V rms input-to-output withstand voltage  
By avoiding the use of LEDs and photodiodes, this iCoupler  
gate drive device is able to provide precision timing characteristics  
not possible with optocouplers. Furthermore, the reliability and  
performance stability problems associated with optocoupler  
LEDs are avoided.  
APPLICATIONS  
Isolated IGBT/MOSFET gate drives  
Plasma displays  
Industrial inverters  
In comparison to gate drivers employing high voltage level  
translation methodologies, the ADuM1234 offers the benefit  
of true, galvanic isolation between the input and each output.  
Each output can be operated up to ±±77 VPEAK relative to the  
input, thereby supporting low-side switching to negative voltages.  
The differential voltage between the high side and low side can be  
Switching power supplies  
as high as ±77 VPEAK  
.
As a result, the ADuM1234 provides reliable control over the  
switching characteristics of IGBT/MOSFET configurations over  
a wide range of positive or negative switching voltages.  
FUNCTIONAL BLOCK DIAGRAM  
ADuM1234  
1
2
3
4
5
6
7
8
16  
15  
14  
13  
12  
11  
10  
9
V
V
V
V
IA  
DDA  
OA  
ENCODE  
DECODE  
IB  
V
GND  
NC  
DD1  
A
GND  
1
DISABLE  
NC  
NC  
V
V
DDB  
ENCODE  
DECODE  
NC  
OB  
V
GND  
B
DD1  
NC = NO CONNECT  
Figure 1.  
1 Protected by U.S. Patents 5,952,849; 6,873,065; 7,075,329. Other patents 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  
©2007 Analog Devices, Inc. All rights reserved.  
 
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