SLLSEI0E
July 2015 ā July 2024
TUSB4020BI
PRODUCTION DATA
1
1
Features
2
Applications
3
Description
4
Pin Configuration and Functions
5
Specifications
5.1
Absolute Maximum Ratings #GUID-E9510BAC-794F-43CD-A047-0D0FFB7C50BE/ABSMAXNOTE
5.2
ESD Ratings
5.3
Recommended Operating Conditions
5.4
Thermal Information
5.5
3.3V I/O Electrical Characteristics
5.6
Hub Input Supply Current
5.7
Power-Up Timing Requirements
6
Detailed Description
6.1
Overview
6.2
Functional Block Diagram
6.3
Feature Description
6.3.1
Battery Charging Features
6.3.2
USB Power Management
6.3.3
Clock Generation
6.3.4
Power-Up and Reset
6.4
Device Functional Modes
6.4.1
External Configuration Interface
6.5
Programming
6.5.1
One-Time Programmable (OTP) Configuration
6.5.2
I2C EEPROM Operation
6.5.3
SMBus Target Operation
6.6
Register Maps
6.6.1
Configuration Registers
6.6.1.1
ROM Signature Register (offset = 0h) [reset = 0h]
6.6.1.2
Vendor ID LSB Register (offset = 1h) [reset = 51h]
6.6.1.3
Vendor ID MSB Register (offset = 2h) [reset = 4h]
6.6.1.4
Product ID LSB Register (offset = 3h) [reset = 25h]
6.6.1.5
Product ID MSB Register (offset = 4h) [reset = 80h]
6.6.1.6
Device Configuration Register (offset = 5h) [reset = 1Xh]
6.6.1.7
Battery Charging Support Register (offset = 6h) [reset = 0Xh]
6.6.1.8
Device Removable Configuration Register (offset = 7h) [reset = 0Xh]
6.6.1.9
Port Used Configuration Register (offset = 8h) [reset = 0h]
6.6.1.10
PHY Custom Configuration Register (offset = 9h) [reset = 0h]
6.6.1.11
Device Configuration Register 2 (offset = Ah)
6.6.1.12
UUID Registers (offset = 10h to 1Fh)
6.6.1.13
Language ID LSB Register (offset = 20h)
6.6.1.14
Language ID MSB Register (offset = 21h)
6.6.1.15
Serial Number String Length Register (offset = 22h)
6.6.1.16
Manufacturer String Length Register (offset = 23h)
6.6.1.17
Product String Length Register (offset = 24h)
6.6.1.18
Serial Number Registers (offset = 30h to 4Fh)
6.6.1.19
Manufacturer String Registers (offset = 50h to 8Fh)
6.6.1.20
Product String Registers (offset = 90h to CFh)
6.6.1.21
Additional Feature Configuration Register (offset = F0h)
6.6.1.22
Charging Port Control Register (offset = F2h)
6.6.1.23
Device Status and Command Register (offset = F8h)
7
Application and Implementation
7.1
Application Information
7.1.1
Crystal Requirements
7.1.2
Input Clock Requirements
7.2
Typical Applications
7.2.1
Upstream Port Implementation
7.2.1.1
Design Requirements
7.2.1.2
Detailed Design Procedure
7.2.1.3
Application Curves
7.2.2
Downstream Port 1 Implementation
7.2.3
Downstream Port 2 Implementation
7.2.4
VBUS Power Switch Implementation
7.2.5
Clock, Reset, and Miscellaneous
7.2.6
Power Implementation
7.3
Power Supply Recommendations
7.3.1
Power Supply
7.3.2
Downstream Port Power
7.3.3
Ground
7.4
Layout
7.4.1
Layout Guidelines
7.4.1.1
Placement
7.4.1.2
Package Specific
7.4.1.3
Differential Pairs
7.4.2
Layout Example
8
Device and Documentation Support
8.1
Documentation Support
8.1.1
Related Documentation
8.2
Receiving Notification of Documentation Updates
8.3
Support Resources
8.4
Trademarks
8.5
Electrostatic Discharge Caution
8.6
Glossary
9
Revision History
10
Mechanical, Packaging, and Orderable Information
Package Options
Mechanical Data (Package|Pins)
PHP|48
MPQF051B
Thermal pad, mechanical data (Package|Pins)
PHP|48
PPTD259B
Orderable Information
sllsei0e_oa
sllsei0e_pm
1
Features
Two-port USB 2.0 hub
USB 2.0 hub features:
Multi-transaction translator (MTT) hub: two transaction translators
Four asynchronous endpoint buffers per transaction translator
Type C compatible
Supports battery charging
CDP mode (upstream port connected)
DCP mode (upstream port unconnected)
DCP mode complies with Chinese telecommunications industry standard YD/T 1591-2009
D+/Dā divider mode
Per port or ganged power switching and overcurrent notification inputs
OTP ROM, serial EEPROM, or I
2
C/SMBus target interface for custom configurations:
VID and PID
Port customizations
Manufacturer and product strings (not by OTP ROM)
Serial number (not by OTP ROM)
Application feature selection using terminal selection or EEPROM/ or I
2
C/SMBus target interface
Provides 128-bit universally unique identifier (UUID)
Supports on-board and in-system OTP/EEPROM programming through the USB 2.0 upstream port
Single clock input, 24MHz crystal or oscillator
No special driver requirements; works seamlessly on any operating system with USB stack support
48-pin HTQFP package (PHP)