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| 型号： | CPC5903GSTR |
| 厂商： | IXYS Integrated Circuits Division |
| 文件页数： | 1/15页 |
| 文件大小： | 0K |
| 描述： | ISOL 3.75KVRMS 1CH BIDIR 8-SMD |
| 标准包装： | 1,000 |
| 电压 - 隔离： | 3750Vrms |
| 通道数： | 1，双向 |
| 数据速率： | 400kbps |
| 输入类型： | DC |
| 输出类型： | I²C? |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SMD，鸥翼型 |
| 供应商设备封装： | 8-SMD |
| 包装： | 带卷 (TR) |
Optically Isolated I C Bus Repeater
CPC5903
2
I NTEGRATED C IRCUITS D IVISION
Features
? Bidirectionally Buffers I 2 C SDA Signal
? Extends and Isolates I 2 C Interfaces
? Standard-mode and Fast-mode I 2 C
Side B Fast-mode Compatible V DDB > 4.5V
? Operates on 2.7V to 5.5V
? Voltage Level Translation
? Slew-Limited Drivers Reduce EMI
? Powerdown to Hi-Z Does Not Load I 2 C
? 3750V rms Galvanic Isolation
? Single 8-pin Surface-Mount Package
Applications
Description
The CPC5903 is a dual, optically isolated, logic-bus
repeater. It isolates two open-drain logic signals while
providing 3750V rms of galvanic isolation. When the
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
provides an isolated bidirectional buffer for the I 2 C
data signal and a unidirectional buffer for the I 2 C clock
signal, it is best suited for applications where clock
stretching is not required. This configuration also
requires the I 2 C bus master to be on the Side A bus.
?
?
?
?
?
Isolated Control and Signal Monitoring
Power-over-Ethernet
Power Supply High Side Interface
I 2 C Bus Length Extenders
I 2 C Logic Level Translation
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.
Approvals
? UL 1577 Certified Component: File E76270
Ordering Information
? EN/IEC 60950 Certified Component:
TUV Certificate: B 11 10 49410 007
Part
CPC5903G
Description
8-Pin DIP (50 / Tube)
Pb
e 3
CPC5903GS
CPC5903GSTR
8-Pin Surface Mount (50 / Tube)
8-Pin Surface Mount (1000 / Reel)
Figure 1. CPC5903 Functional Block Diagram
V DDA
IA
1
V DDA
V DDB
8
V DDB
LED
B
B
V DDB
GND A
2
7
OB
A
V DDB
V DDA
A
LED
IOA
3
V DDB
D
Q
B
6
GND B
CLR
V DDA
LED
V DDB
V DDA
4
V DDA
B
5
IOB
A
DS-CPC5903-R02
www.ixysic.com
1
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