SCPS204D
January 2014 – November 2019
TCA9545A
PRODUCTION DATA.
1
Features
2
Applications
3
Description
Device Images
Simplified Application Diagram
4
Revision History
5
Pin Configuration and Functions
Pin Functions
6
Specifications
6.1
Absolute Maximum Ratings
6.2
ESD Ratings
6.3
Recommended Operating Conditions
6.4
Thermal Information
6.5
Electrical Characteristics
6.6
I2C Interface Timing Requirements
6.7
Switching Characteristics
6.8
Interrupt and Reset Timing Requirements
6.9
Typical Characteristics
7
Parameter Measurement Information
8
Detailed Description
8.1
Overview
8.2
Functional Block Diagram
8.3
Feature Description
8.4
Device Functional Modes
8.4.1
RESET Input
8.4.2
Power-On Reset
8.5
Programming
8.5.1
I2C Interface
8.6
Control Register
8.6.1
Device Address
8.6.2
Control Register Description
8.6.3
Control Register Definition
8.6.4
Interrupt Handling
9
Application and Implementation
9.1
Application Information
9.2
Typical Application
9.2.1
Design Requirements
9.2.2
Detailed Design Procedure
9.2.3
TCA9545A Application Curves
10
Power Supply Recommendations
10.1
Power-On Reset Requirements
11
Layout
11.1
Layout Guidelines
11.2
Layout Example
12
Device and Documentation Support
12.1
Receiving Notification of Documentation Updates
12.2
Support Resources
12.3
Trademarks
12.4
Electrostatic Discharge Caution
12.5
Glossary
13
Mechanical, Packaging, and Orderable Information
Package Options
Mechanical Data (Package|Pins)
PW|20
MPDS362A
Thermal pad, mechanical data (Package|Pins)
Orderable Information
scps204d_oa
scps204d_pm
6.9
Typical Characteristics
Figure 1.
SDA Output Low Voltage (V
OL
) vs Load Current (I
OL
) at Three V
CC
Levels
Figure 3.
Slave channel (SCn/SDn) capacitance (C
io(OFF)
) vs. Supply Voltage (V
CC
) at Three Temperature Points
Figure 2.
Standby Current (I
CC
) vs Supply Voltage (V
CC
) at Three Temperature Points
Figure 4.
ON-Resistance (R
ON
) vs Supply Voltage (V
CC
) at Three Temperatures