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CPC5903GS PDF预览

CPC5903GS

更新时间: 2024-11-06 01:09:47
品牌 Logo 应用领域
IXYS /
页数 文件大小 规格书
15页 271K
描述
Bidirectionally Buffers I2C SDA Signal

CPC5903GS 数据手册

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CPC5903  
Optically Isolated I2C Bus Repeater  
INTEGRATED  
C
IRCUITS  
D
IVISION  
Features  
Description  
2
The CPC5903 is a dual, optically isolated, logic-bus  
repeater. It isolates two open-drain logic signals while  
Bidirectionally Buffers I C SDA Signal  
2
Extends and Isolates I C Interfaces  
providing 3750V  
of galvanic isolation. When the  
rms  
2
Standard-mode and Fast-mode I C  
Side B Fast-mode Compatible V  
two sides are powered by different supply voltages, it  
also functions as a logic level translator for levels as  
low as 2.7V or as high as 5.5V. Because the CPC5903  
> 4.5V  
DDB  
Operates on 2.7V to 5.5V  
Voltage Level Translation  
Slew-Limited Drivers Reduce EMI  
Powerdown to Hi-Z Does Not Load I C  
3750V Galvanic Isolation  
2
provides an isolated bidirectional buffer for the I C  
2
data signal and a unidirectional buffer for the I C clock  
2
signal, it is best suited for applications where clock  
stretching is not required. This configuration also  
rms  
Single 8-pin Surface-Mount Package  
2
requires the I C bus master to be on the Side A bus.  
Applications  
Isolated Control and Signal Monitoring  
Power-over-Ethernet  
Unlike transformer or capacitive isolators, optical  
isolation passes DC signals and does not require  
continuous clocking to ensure the proper state is  
maintained. The CPC5903 always returns the buffered  
signals to their proper state after transient  
interruptions on either side.  
Power Supply High Side Interface  
2
I C Bus Length Extenders  
2
I C Logic Level Translation  
Approvals  
UL 1577 Certified Component: File E76270  
EN/IEC 60950 Certified Component:  
TUV Certificate: B 11 10 49410 007  
Ordering Information  
Part  
Description  
CPC5903G  
8-Pin DIP (50 / Tube)  
CPC5903GS  
CPC5903GSTR  
8-Pin Surface Mount (50 / Tube)  
8-Pin Surface Mount (1000 / Reel)  
Pb  
e3  
Figure 1. CPC5903 Functional Block Diagram  
VDDA  
VDDB  
VDDB  
8
VDDA  
IA  
1
2
3
4
B
LED  
B
VDDB  
GNDA  
7
OB  
A
VDDB  
VDDA  
LED  
A
6
GNDB  
IOA  
VDDB  
B
D
Q
CLR  
VDDA  
LED  
VDDB  
VDDA  
VDDA  
5
IOB  
B
A
DS-CPC5903-R02  
www.ixysic.com  
1

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