Datasheet STUSB4500L (STMicroelectronics) - 2
| Manufacturer | STMicroelectronics |
| Description | Standalone USB Type-C sink port controller |
| Pages / Page | 32 / 2 — STUSB4500L. Functional description. The STUSB4500L major role is to:. The … |
| File Format / Size | PDF / 1.8 Mb |
| Document Language | English |
STUSB4500L. Functional description. The STUSB4500L major role is to:. The STUSB4500L also provides:. 1.1. Block overview
Model Line for this Datasheet
Text Version of Document
STUSB4500L Functional description 1 Functional description
The STUSB4500L is a USB Type-C™ IC controller addressing 5 V sink applications. It supports dead battery mode to allow a system to be powered from a VBUS power source directly.
The STUSB4500L major role is to:
1. Detect the connection between two USB Type-C ports (attach detection) 2. Establish a valid source-to-sink connection 3. Identify the attached device: source or debug accessory 4. Resolve cable orientation and twist connections to establish USB 3 data routing (MUX control) if any 5. Configure the incoming VBUS power path 6. Monitor the VBUS power path 7. Report the available power advertised by the source 8. Handle the high voltage protections
The STUSB4500L also provides:
• Dead battery mode • Internal and/or external VBUS discharge paths • Debug accessory mode detection • Customization of the device configuration through NVM to support specific applications
1.1 Block overview Figure 1. Functional block diagram VDD VBUS_VS_DISCH VSYS
voltage Internal monitoring
VREG_2V7
supply Discharge
VREG_1V2
VBUS status path
VBUS_EN_SNK DISCH A_B_SIDE ADDR[1..0]
Port C
SCL I²C
controller
SDA CC1DB slave
CC
CC1 ALERT
line
CC2
access
CC2DB ATTACH RP_3A; RP_1A5 Control GPIO RESET
POR
GND DS13102
-
Rev 2 page 2/32
Document Outline Cover image Product status link / summary Product status link / summary Features Applications Description 1 Functional description 1.1 Block overview 2 Inputs/outputs 2.1 Pinout 2.2 Pin description 2.2.1 CC1 / CC2 2.2.2 CC1DB / CC2DB 2.2.3 RESET 2.2.4 I²C interface pins 2.2.5 DISCH 2.2.6 GND 2.2.7 ATTACH 2.2.8 RP_3A/RP_1A5 2.2.9 GPIO 2.2.10 VBUS_EN_SNK 2.2.11 A_B_SIDE 2.2.12 VBUS_VS_DISCH 2.2.13 VREG_1V2 2.2.14 VSYS 2.2.15 VREG_2V7 2.2.16 VDD 3 Description of the features 3.1 CC interface 3.2 VBUS power path control 3.2.1 VBUS monitoring 3.2.2 VBUS discharge 3.2.3 VBUS power path assertion 3.3 Dead battery mode 3.4 High voltage protections 3.5 Hardware fault management 3.6 Debug accessory mode detection 4 I²C Interface 4.1 Read and write operations 4.2 Timing specifications 5 Start-up configuration 5.1 User-defined parameters 5.2 Default start-up configuration 6 Application 6.1 General information 6.1.1 Power supplies 6.1.2 Connection to MCU or application processor 6.2 Typical application 7 Electrical characteristics 7.1 Absolute maximum ratings 7.2 Operating conditions 7.3 Electrical and timing characteristics 8 Package information 8.1 QFN-24 EP (4x4) package information 8.2 WLCSP (2.6x2.6x0.5) 25 bumps package information 8.3 Thermal information 9 Terms and abbreviations Revision history
The STUSB4500L is a USB Type-C™ IC controller addressing 5 V sink applications. It supports dead battery mode to allow a system to be powered from a VBUS power source directly.
The STUSB4500L major role is to:
1. Detect the connection between two USB Type-C ports (attach detection) 2. Establish a valid source-to-sink connection 3. Identify the attached device: source or debug accessory 4. Resolve cable orientation and twist connections to establish USB 3 data routing (MUX control) if any 5. Configure the incoming VBUS power path 6. Monitor the VBUS power path 7. Report the available power advertised by the source 8. Handle the high voltage protections
The STUSB4500L also provides:
• Dead battery mode • Internal and/or external VBUS discharge paths • Debug accessory mode detection • Customization of the device configuration through NVM to support specific applications
1.1 Block overview Figure 1. Functional block diagram VDD VBUS_VS_DISCH VSYS
voltage Internal monitoring
VREG_2V7
supply Discharge
VREG_1V2
VBUS status path
VBUS_EN_SNK DISCH A_B_SIDE ADDR[1..0]
Port C
SCL I²C
controller
SDA CC1DB slave
CC
CC1 ALERT
line
CC2
access
CC2DB ATTACH RP_3A; RP_1A5 Control GPIO RESET
POR
GND DS13102
-
Rev 2 page 2/32
Document Outline Cover image Product status link / summary Product status link / summary Features Applications Description 1 Functional description 1.1 Block overview 2 Inputs/outputs 2.1 Pinout 2.2 Pin description 2.2.1 CC1 / CC2 2.2.2 CC1DB / CC2DB 2.2.3 RESET 2.2.4 I²C interface pins 2.2.5 DISCH 2.2.6 GND 2.2.7 ATTACH 2.2.8 RP_3A/RP_1A5 2.2.9 GPIO 2.2.10 VBUS_EN_SNK 2.2.11 A_B_SIDE 2.2.12 VBUS_VS_DISCH 2.2.13 VREG_1V2 2.2.14 VSYS 2.2.15 VREG_2V7 2.2.16 VDD 3 Description of the features 3.1 CC interface 3.2 VBUS power path control 3.2.1 VBUS monitoring 3.2.2 VBUS discharge 3.2.3 VBUS power path assertion 3.3 Dead battery mode 3.4 High voltage protections 3.5 Hardware fault management 3.6 Debug accessory mode detection 4 I²C Interface 4.1 Read and write operations 4.2 Timing specifications 5 Start-up configuration 5.1 User-defined parameters 5.2 Default start-up configuration 6 Application 6.1 General information 6.1.1 Power supplies 6.1.2 Connection to MCU or application processor 6.2 Typical application 7 Electrical characteristics 7.1 Absolute maximum ratings 7.2 Operating conditions 7.3 Electrical and timing characteristics 8 Package information 8.1 QFN-24 EP (4x4) package information 8.2 WLCSP (2.6x2.6x0.5) 25 bumps package information 8.3 Thermal information 9 Terms and abbreviations Revision history
