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MAX22245

更新时间： 2024-10-04 14:57:35
品牌 Logo 应用领域
亚德诺 - ADI /
页数 文件大小 规格书
22页 1786K
描述
增强型、快速、低功耗、双通道数字隔离器

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MAX22245 数据手册

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Click here to ask an associate for production status of specific part numbers.  
MAX22245, MAX22246  
Product Highlights  
Reinforced, Fast, Low-Power, Two-  
Channel Digital Isolators  
• Motor Drive  
Simplified Application Diagram  
•
•
AEC-Q100 Qualification for /V devices  
Reinforced Galvanic Isolation for Digital Signals  
• 8-SOIC with 8mm of Creepage and Clearance  
3.3V  
1.8V  
2.5V  
0.1µF  
0.1µF  
0.1µF  
0.1µF  
• Withstands 5kV  
for 60s (V  
)
RMS  
• Continuously Withstands 848V  
ISO  
V
CC  
V
L
(V  
)
MICRO  
CONTROLLER  
RMS IOWM  
MAX22502E  
MAX22246C/F  
V
DD  
V
DDA  
V
DDB  
RE  
B
A
• Withstands ±12.8kV Surge Between GNDA and  
GNDB with 1.2/50μs Waveform  
RX  
OUT1  
IN1  
RO  
2.5V  
• High CMTI (50kV/μs, typ)  
DE  
Y
Z
•
Low Power Consumption  
• 0.78mW per Channel at 1Mbps with V  
• 1.47mW per Channel at 1Mbps with V  
DI  
TX  
IN2  
OUT2  
GNDB  
= 1.8V  
= 3.3V  
PSET  
GND  
GNDA  
DD_  
DD_  
4k ꢀ  
GND  
• 3.28mW per Channel at 100Mbps with V  
=
DD_  
1.8V  
Pin Description  
•
•
Low Propagation Delay and Low Jitter  
TOP VIEW  
• Maximum Data Rate Up to 200Mbps  
• Low Propagation Delay 7ns (typ) at V  
= 3.3V  
+
+
DD_  
1
2
3
4
8
7
6
5
1
2
3
4
8
7
6
5
V
V
V
V
DDB  
DDA  
DDB  
DDA  
• Clock Jitter RMS 7.5ps (typ)  
IN1  
MAX22245  
OUT1  
OUT2  
OUT1  
IN2  
MAX22246  
IN1  
Safety Regulatory Approvals  
• UL According to UL1577  
• cUL According to CSA Bulletin 5A  
IN2  
OUT2  
GNDB  
GNDA  
GNDB GNDA  
• VDE 0884-11 Reinforced Insulation (Pending)  
WIDE SOIC  
WIDE SOIC  
Key Applications  
These devices transfer digital signals between circuits  
with different power domains, using as little as 0.78mW  
per-channel at 1Mbps (1.8V supply). The low-power  
feature reduces system dissipation, increases reliability,  
and enables compact designs.  
•
Automotive  
• Hybrid Electric Vehicle  
• Chargers  
• Battery Management Systems (BMS)  
• Inverters  
The MAX22245/MAX22246 are a family of 2-channel  
reinforced, fast, low-power digital galvanic isolators  
using Analog Devices’ proprietary process technology.  
All devices feature reinforced isolation for a withstand  
Devices are available with a maximum data rate of  
25Mbps or 200Mbps, and with outputs that are either  
default high or default low. The devices feature low  
propagation delay and low clock jitter, which reduces  
system latency.  
voltage rating of 5kV  
for 60 seconds. Both  
RMS  
Independent 1.71V to 5.5V supplies on each side of the  
isolator also make the devices suitable for use as level  
translators.  
automotive and general-purpose devices are rated for  
operation at ambient temperatures of -40°C to +125°C.  
Devices with /V suffix are AEC-Q100 qualified. Refer to  
the Ordering Information for all automotive grade part  
numbers.  
The MAX22245 features two channels transferring data  
in the same direction. The two channels of the  
MAX22246 transfer data in opposite directions, and this  
makes the MAX22246 ideal for isolating the Tx and Rx  
lines of a transceiver.  
•
Industrial  
• Isolated SPI  
• Isolated RS-232, RS-485/RS-422, CAN  
• Fieldbus Communications  
Ordering Information appears at end of data sheet.  
19-100820; Rev 9; 09/22  
© 2022 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners.  
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