SLLSFI4D November   2021  – April 2024 TUSB2E11

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Device Version Comparison
    1. 4.1 Device Variants
  6. 5 Pin Configuration and Functions
  7. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 Switching Characteristics
    7. 6.7 Timing Requirements
    8. 6.8 Typical Characteristics
  8. 7 Parameter Measurement Information
  9. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
    4. 8.4 Device Functional Modes
      1. 8.4.1  Repeater Mode
      2. 8.4.2  Power Down Mode
      3. 8.4.3  Disabled Mode
      4. 8.4.4  UART Mode
      5. 8.4.5  Auto-Resume ECR
      6. 8.4.6  L2 State Interrupt Modes
      7. 8.4.7  Attach Detect Interrupt Mode
      8. 8.4.8  GPIO Mode
      9. 8.4.9  USB 2.0 High-Speed HOST Disconnect Detection
      10. 8.4.10 Frame Based Low Power Mode
      11. 8.4.11 Battery Charging
    5. 8.5 Manufacturing Test Modes
      1. 8.5.1 USB DP Test Procedure
      2. 8.5.2 USB DM Test Procedure
    6. 8.6 I2C Target Interface
  10. 9 Register Access Protocol (RAP)
  11. 10Register Map
    1. 10.1 TUSB2E11 Registers
  12. 11Application and Implementation
    1. 11.1 Application Information
    2. 11.2 Typical Application
      1. 11.2.1 Design Requirements
      2. 11.2.2 Detailed Design Procedure
      3. 11.2.3 Application Curves
    3. 11.3 Power Supply Recommendations
      1. 11.3.1 Power Up Reset
    4. 11.4 Layout
      1. 11.4.1 Layout Guidelines
      2. 11.4.2 Example Layout for Application with 1.8V I2C Variant
  13. 12Device and Documentation Support
    1. 12.1 Device Support
      1. 12.1.1 Third-Party Products Disclaimer
    2. 12.2 Documentation Support
      1. 12.2.1 Related Documentation
    3. 12.3 Receiving Notification of Documentation Updates
    4. 12.4 Support Resources
    5. 12.5 Trademarks
    6. 12.6 Electrostatic Discharge Caution
    7. 12.7 Glossary
  14. 13Revision History
  15. 14Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

8.4.11 Battery Charging

The TUSB2E11 supports standard USB battery charging specification 1.2 (BC1.2) and the divider mode and 1.2V DCP proprietary charging protocols as listed in Table 8-4. The BC1.2 functionality includes charger advertisement and charger detection when enabled in non-I2C mode using strap (refer to Table 5-4) or I2C mode through register configuration.

When the TUSB2E11 is configured as a host repeater, the TUSB2E11 supports charger advertisement whereas when the TUSB2E11 is configured as peripheral repeater it supports charger detection. When configured as peripheral repeater, the TUSB2E11 detects charger type if Battery Charging detection in peripheral mode is enabled. The TUSB2E11 can detect ACP3, ACP2, ACP1, DCP 1.2V biased short mode, USB standard DCP short mode and CDP types of charger. When configured as a host repeater, the TUSB2E11 acts as charger advertiser if CDP is enabled. The TUSB2E11 can advertise ACP3, DCP 1.2V, DCP or CDP modes. When in an unconfigured state, the behavior of battery charging state machine is controlled by strap settings in non-I2C mode or by register settings in I2C mode. When the TUSB2E11 is in an unconfigured state charger advertisement mode, GPIO0 directs system to power-cycle VBUS to enable a portable device to exit dedicated charging port mode and switch to host or peripheral state where data transfer is possible.

Table 8-4 Battery Charging Supported Protocols
Charging Protocol Standard or Proprietary Charging Current (A) Data Transfer Allowed Charger Detection or Advertise
SDP (Standard Downstream Port) Standard BC1.2 0.5 or 0.9 Yes Detection
CDP (Charging Downstream Port) Standard BC1.2 1.5 Yes Detection and Advertise
DCP (Dedicated Charging Port) Standard BC1.2 1.5 No Detection and Advertise
1.2V DCP Proprietary 2 No Detection and Advertise
ACP0 or Divider Mode 0 Proprietary 0.5 No Detection
ACP1 or Divider Mode 1 Proprietary 1 No Detection
ACP2 or Divider Mode 2 Proprietary 2.1 No Detection
ACP3 or Divider Mode 3 Proprietary 2.4 No Detection and Advertise

In I2C mode, the behavior of the battery charging state machine in the TUSB2E11 is controlled by the DEFAULT_STATE_BC_P1, BC_DETECTION_EN_P1, and CDP_2_EN_P1 register fields. In the unconfigured state, the battery charging state machine also depends on EN_BC input from GPIO1 in I2C mode.

Table 8-5 Battery Charging Behavior in I2C Mode
GPIO1 (BC_EN) DEFAULT_STATE_BC_P1
bit		 TUSB2E11 Behavior in each state
Unconfigured Host Repeater Peripheral repeater
Low X No action As per CDP_2_EN_P1. Act as charger detector including divider mode detector once SOC directs repeater to connect when BC_DETECTION_EN_P1 set.
High 0x0 No Action
High 0x1 Act as a charger detector including divider mode.
High 0x2 Advertise standard DCP if 1P2V_MODE_DIS = 1, else advertise 1.2V DCP.
High 0x3 If 1P2V_MODE_DIS = 0, then advertise ACP3 → 1.2V DCP → DCP until no connect in auto cycling mode.
If 1P2V_MODE_DIS = 1 then advertise ACP3 → DCP until no connect in auto cycling mode.