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TCA9517A Level-Shifting I2C Bus Repeater
SCPS245D
December 2012 – September 2024
TCA9517A
PRODUCTION DATA
CONTENTS
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TCA9517A Level-Shifting I2C Bus Repeater
1
1
Features
2
Applications
3
Description
4
Pin Configuration and Functions
5
Specifications
5.1
Absolute Maximum Ratings
5.2
ESD Ratings
5.3
Recommended Operating Conditions
5.4
Thermal Information
5.5
Thermal Information
5.6
Electrical Characteristics
5.7
Timing Requirements
5.8
I2C Interface Switching Characteristics
5.9
Typical Characteristics
6
Parameter Measurement Information
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
Two-Channel Bidirectional Buffer
7.3.2
Active-High Repeater-Enable Input
7.3.3
VOL B-Side Offset Voltage
7.3.4
Standard Mode and Fast Mode Support
7.3.5
Clock Stretching Support
7.4
Device Functional Modes
8
Application and Implementation
8.1
Application Information
8.2
Typical Application
8.2.1
Design Requirements
8.2.2
Detailed Design Procedure
8.2.2.1
Clock Stretching Support
8.2.2.2
VILC and Pullup Resistor Sizing
8.2.3
Application Curve
9
Power Supply Recommendations
10
Layout
10.1
Layout Guidelines
10.2
Layout Example
11
Device and Documentation Support
11.1
Receiving Notification of Documentation Updates
11.2
Support Resources
11.3
Trademarks
11.4
Electrostatic Discharge Caution
11.5
Glossary
12
Revision History
13
Mechanical, Packaging, and Orderable Information
13.1
Tape and Reel Information
13.2
Mechanical Data
IMPORTANT NOTICE
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Data Sheet
TCA9517A
Level-Shifting I
2
C Bus Repeater
1
Features
Two-Channel Bidirectional Buffer
I
2
C Bus and SMBus Compatible
Operating Supply Voltage Range of 0.9V to 5.5V on A-side
Operating Supply Voltage Range of 2.7V to 5.5V on B-side
Voltage-Level Translation From 0.9V - 5.5V to 2.7V - 5.5V
Footprint and Functional Replacement for PCA9515B
Active-High Repeater-Enable Input
Open-Drain I
2
C I/O
5.5V Tolerant I
2
C and Enable Input Support Mixed-Mode Signal Operation
Accommodates Standard Mode and Fast Mode I
2
C Devices and Multiple Masters
High-Impedance I
2
C Pins When Powered-Off
Latch-Up Performance Exceeds 100mA Per JESD 78, Class II
ESD Protection Exceeds JESD 22
5500V Human-Body Model (A114-A)
200V Machine Model (A115-A)
1000V Charged-Device Model (C101)
2
Applications
Servers
Routers (Telecom Switching Equipment)
Industrial Equipment
Products with Many I
2
C Slaves and/or Long PCB Traces
