ZHCSIY2B July 2018 – August 2021 TPS65988
PRODUCTION DATA
- 1 特性
- 2 應用
- 3 說明
- 4 Revision History
- 5 Pin Configuration and Functions
-
6 Specifications
- 6.1 Absolute Maximum Ratings
- 6.2 ESD Ratings
- 6.3 Recommended Operating Conditions
- 6.4 Thermal Information
- 6.5 Power Supply Requirements and Characteristics
- 6.6 Power Consumption Characteristics
- 6.7 Power Switch Characteristics
- 6.8 Cable Detection Characteristics
- 6.9 USB-PD Baseband Signal Requirements and Characteristics
- 6.10 BC1.2 Characteristics
- 6.11 Thermal Shutdown Characteristics
- 6.12 Oscillator Characteristics
- 6.13 I/O Characteristics
- 6.14 PWM Driver Characteristics
- 6.15 I2C Requirements and Characteristics
- 6.16 SPI Controller Timing Requirements
- 6.17 HPD Timing Requirements
- 6.18 Typical Characteristics
- 7 Parameter Measurement Information
-
8 Detailed Description
- 8.1 Overview
- 8.2 Functional Block Diagram
- 8.3
Feature Description
- 8.3.1 USB-PD Physical Layer
- 8.3.2 Power Management
- 8.3.3 Port Power Switches
- 8.3.4 Cable Plug and Orientation Detection
- 8.3.5 Dead Battery Operation
- 8.3.6 Battery Charger Detection and Advertisement
- 8.3.7 ADC
- 8.3.8 DisplayPort HPD
- 8.3.9 Digital Interfaces
- 8.3.10 PWM Driver
- 8.3.11 Digital Core
- 8.3.12 I2C Interfaces
- 8.3.13 SPI Controller Interface
- 8.3.14 Thermal Shutdown
- 8.3.15 Oscillators
- 8.4 Device Functional Modes
-
9 Application and Implementation
- 9.1 Application Information
- 9.2
Typical Applications
- 9.2.1 Type-C VBUS Design Considerations
- 9.2.2 Dual Port Thunderbolt Notebook with AR Supporting USB PD Charging
- 9.2.3 Dual Port USB & Displayport Notebook Supporting PD Charging
- 9.2.4 USB Type-C & PD Monitor/Dock
- 10Power Supply Recommendations
-
11Layout
- 11.1 Layout Guidelines
- 11.2 Layout Example
- 11.3 Stack-Up and Design Rules
- 11.4 Main Component Placement
- 11.5 1.4 Super Speed Type-C Connectors
- 11.6 Capacitor Placement
- 11.7 CC1/2 Capacitors & ADCIN1/2 Resistors
- 11.8 CC & SBU Protection Placement
- 11.9 CC Routing
- 11.10 DRAIN1 and DRAIN2 Pad Pours
- 11.11 USB2 Routing for ESD Protection and BC1.2
- 11.12 VBUS Routing
- 11.13 Completed Layout
- 11.14 Power Dissipation
- 12Device and Documentation Support
- 13Mechanical, Packaging, and Orderable Information
8.3.6 Battery Charger Detection and Advertisement
The battery charger (BC1.2) block integrates circuitry to detect when the connected entity on the USB D+/D– pins is a BC1.2 compliant charger, as well as advertise BC1.2 charging capabilities to connected devices. To enable the required detection and advertisement mechanisms, the block integrates various voltage sources, currents, and resistances. Figure 8-18 shows the connection of these elements to the TPS65988 Cx_USB_P and Cx_USB_N pins.
Figure 8-18 Battery Charger Detection and AdvertisementThe pull-up and pull-down resistors required by the USB2 standard for a USB host or device are not provided by the TPS65988 and must be provided externally to the device in final applications.