Document
INTEGRATED CIRCUITS DIVISION
Features
• Isolates One Signal in Each Direction • Operates From 2.7V to 5.5V • Buffered Inputs - No External LED Drive Required • Voltage Level Translation • Hysteresis at Inputs for Noise Rejection • Slew-Limited Drivers Reduce EMI • Power-Down to Hi-Z Does Not Load Outputs • 5Mbaud Data Rate • 8-Pin DIP or Surface Mount Packages
Applications
• Isolated Signal Monitoring and Control • Power-Over-Ethernet • Power Supply High-Side Interface • Logic-Level Translation • Microprocessor System Interface • Inter-Integrated Circuit (I2C) Interface • Serial Peripheral Interface (SPI) • Full Duplex Communication • Isolated Line Receiver • Isolated Data Acquisition Systems
Approvals
• UL Recognized Component: File E76270 • EN/IEC 60950: Certificate B 12 11 82667 001
CPC5001
Dual, One Channel Each Direction Digital Optical Isolator
Description
The CPC5001 is a dual, non-inverting digital optical isolator with buffered-logic inputs and open-drain outputs. Channel 1 propagates a signal from Side A to Side B, while Channel 2 sends a signal from Side B to Side A. It provides galvanic isolation up to 3750Vrms. When the two sides are powered by supplies with different voltages, it also functions as a logic level translator for supply voltages as low as 2.7V or as high as 5.5V. Available in 8-pin DIP and surface mount packages, it functionally replaces two logic buffers and two single-channel optoisolators. Internal bandgap references regulate the LED drive currents to 3mA to reduce peak power requirements.
Unlike transformer or capacitive isolators, optical isolation passes DC signals, and does not need to be clocked periodically to refresh state. Buffered signals will always return to their proper value after a transient interruption at either side.
Ordering Information
Part
Description
CPC5001G 8-Pin DIP in Tubes (50 / Tube) CPC5001GS 8-Pin Surface Mount (50 / Tube) CPC5001GSTR 8-Pin Surface Mount (1000 / Reel)
Figure 1. CPC5001 Functional Block Diagram
IN1
1
GNDA 2
VDDA
A
OUT2 3
VDDA
VDDA
4
GNDA
DS-CPC5001-R02
CHANNEL 1 VDDA LED
B CHANNEL 2
V DDB LED
A
www.ixysic.com
VDDB
8
VDDB
V DDB GNDB
7
OUT1
6
B
5
GNDB IN2
1
INTEGRATED CIRCUITS DIVISION
CPC5001
1. Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.1 Package Pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.2 Pin Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.3 Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.4 ESD Rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.5 Thermal Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.6 General Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 1.7 Electrical Parametric Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 1.8 Timing Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 1.9 Common Mode Rejection Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2. Switching Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3. Performance Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
4. Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 4.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .