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  • TUSB319-Q1 USB Type-C DFP Port Controller

    • SLLSEV4 February   2017 TUSB319-Q1

      PRODUCTION DATA.  

  • CONTENTS
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  • TUSB319-Q1 USB Type-C DFP Port Controller
  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 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. 7 Detailed Description
    1. 7.1 Overview
      1. 7.1.1 Cables, Adapters, and Direct Connect Devices
        1. 7.1.1.1 USB Type-C Receptacles and Plugs
        2. 7.1.1.2 USB Type-C Cables
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Downstream Facing Port (DFP) - Source
      2. 7.3.2 Type-C Current Mode
      3. 7.3.3 VBUS Detection
      4. 7.3.4 Cable Orientation
    4. 7.4 Device Functional Modes
      1. 7.4.1 Unattached Mode
      2. 7.4.2 Active Mode
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 DFP Mode
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
        3. 8.2.1.3 Application Curve
    3. 8.3 Initialization Set Up
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Receiving Notification of Documentation Updates
    2. 11.2 Community Resources
    3. 11.3 Trademarks
    4. 11.4 Electrostatic Discharge Caution
    5. 11.5 Glossary
  12. 12Mechanical, Packaging, and Orderable Information
  13. IMPORTANT NOTICE

Package Options

Mechanical Data (Package|Pins)
  • DRF|8
    • MPDS150D
Thermal pad, mechanical data (Package|Pins)
  • DRF|8
    • QFND080G
Orderable Information
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  • sllsev4_pm
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DATA SHEET

TUSB319-Q1 USB Type-C DFP Port Controller

1 Features

  • Meets USB Type-C™ Specifications
  • Supports DFP (Host/Source) Applications with up to 15W Power
  • Supports Type-C Current Mode Advertisement up to 3 A (Default, 1.5 A, 3 A)
  • Provides Type-C Plug Orientation
  • Channel Configuration (CC)
    • Attach of USB Port Detection
    • Cable Orientation Detection
  • VBUS Detection
  • Supply Voltage: 3.8 V to 5.5 V
  • Low Current Consumption
  • 2 x 2 mm WSON Package with 0.5 mm Pitch
  • Industrial Temperature Range of –40°C to 85°C

2 Applications

  • Wall-charger
  • Automotive Car Charger, USB Port
  • DFP Port for Desktop, Notebooks, All-in-One

3 Description

The TUSB319-Q1 is a USB Type-C Downstream Facing Port (DFP) controller. The TUSB319-Q1 monitors the USB Type-C Configuration Channel (CC) lines to determine when an USB device is attached. If an Upstream Facing Port (UFP) device is attached, the TUSB319-Q1 drives an open drain output ID that can be used in the system to apply VBUS power. The device also communicates the selectable VBUS current sourcing capability to the UFP via the CC lines.

Device Information(1)

PART NUMBER PACKAGE BODY SIZE (NOM)
TUSB319-Q1 WSON (8) 2.00 mm x 2.00 mm 0.5 mm pitch
  1. For all available packages, see the orderable addendum at the end of the data sheet.

SPACER

SPACER

Simplified Schematic

TUSB319-Q1 fp_schematic_sllsev4.gif

4 Revision History

DATE REVISION NOTES
February 2017 * Initial release.

5 Pin Configuration and Functions

DRF Package
8-Pin WSON
Top View

Pin Functions

PIN TYPE DESCRIPTION
NAME NO.
CC2 (1) 1 I/O Type-C configuration channel signal 2
CURRENT_MODE 2 I Advertise VBUS current. This 3-level input is used to control Type-C current advertisement. The pin can be dynamically set.

L - Default Current is 500 mA for USB 2.0 and 900 mA for USB 3.1. Pull-down to GND or leave unconnected.

M - Medium current is 1.5 A. Pull-up to TUSB319-Q1 VDD with 500-kΩ resistor.

H - High current is 3 A. Pull-up to TUSB319-Q1 VDD with 10-kΩ resistor.
VBUS_DET 3 I 5-V to 28-V system VBUS input voltage. One 900-kΩ external resistor required between system VBUS and VBUS_DET pin.
DIR 4 O Type-C plug orientation. This open drain output indicates the detected plug orientation: Type-C plug position 2 (H); Type-C plug position 1 (L).
ID (1) 5 O Open drain output; asserted low when the CC pins detect device attachment.
GND 6 G Ground
VDD 7 P 3.8-V to 5-V power
CC1 (1) 8 I/O Type-C configuration channel signal 1
(1) CC1, CC2 and ID pins are failsafe with leakage current defined in the Electrical Characteristics.

6 Specifications

6.1 Absolute Maximum Ratings

over operating free-air temperature range (unless otherwise noted)(1)
MIN MAX UNIT
Supply voltage VDD –0.3 6 V
Control pins CC1, CC2, CURRENT_MODE, ID, DIR –0.3 6 V
VBUS_DET –0.3 4
Storage temperature, Tstg –65 150 °C
(1) Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, which do not imply functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating Conditions. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

6.2 ESD Ratings

VALUE UNIT
V(ESD) Electrostatic discharge Human-body model (HBM), per AEC Q100-002(1) ±3000 V
Charged-device model (CDM), per AEC Q100-0111 ±1500
(1) AEC Q100-002 indicates that HBM stressing shall be in accordance with the ANSI/ESDA/JEDEC JS-001 specification.

6.3 Recommended Operating Conditions

over operating free-air temperature range (unless otherwise noted)
MIN NOM MAX UNIT
VDD Supply voltage range 3.8 5.5 V
VDD(transient) Transient voltage (with maximum width of 5 ms) 3.5 6 V
VDD(ramp) VDD ramp time 40 mS
VBUS System VBUS voltage 0 5 28 V
VBUS_DET VBUS_DET threshold voltage on the pin 3.8 V
TA Operating free air temperature range –40 25 85 °C
TJ Junction temperature –40 105 °C

6.4 Thermal Information

THERMAL METRIC(1) TUSB319-Q1 UNIT
DRF (WSON)
8 PINS
RθJA Junction-to-ambient thermal resistance 92.7 °C/W
RθJC(top) Junction-to-case (top) thermal resistance 66.6 °C/W
RθJB Junction-to-board thermal resistance 40.8 °C/W
ψJT Junction-to-top characterization parameter 3.4 °C/W
ψJB Junction-to-board characterization parameter 46.3 °C/W
RθJC(bot) Junction-to-case (bot) thermal resistance 43.5 °C/W
(1) For more information about traditional and new thermal metrics, see the Semiconductor and C Package Thermal Metrics application report.

6.5 Electrical Characteristics

over operating free-air temperature range (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
Device average power consumption Active 105 140 µA
Unattached 105 140 µA
CC1 and CC2 Pins
ICC(DEFAULT_P) Default mode pullup current source. 64 80 96 µA
ICC(MED_P) Medium (1.5 A) mode pullup current source. 166 180 194 µA
ICC(HIGH_P) High (3 A) mode pullup current source. 304 330 356 µA
I(FS,CC) Fail safe current (CC1, CC2) VDD = 0 V,
CC1, CC2 = 5 V 		1 µA
Control Pins: CURRENT_MODE, DIR, ID
VIL Low-level control signal input voltage, (CURRENT_MODE) 0.4 V
VIM Mid-level control signal input voltage (CURRENT_MODE) 0.28 × VDD 0.56 × VDD V
VIH High-level control signal input voltage (CURRENT_MODE) VDD - 0.3 V
IIH High-level input current –1 1 µA
IIL Low-level input current –1 1 µA
I(FS,ID) Fail safe current (ID) VDD = 0 V,
ID = 5 V 		1 µA
RPD(CUR) Internal pulldown resistance for CURRENT_MODE pin 275 kΩ
VOL Low-level signal output voltage (open-drain) (ID and DIR) IOL = –1.6 mA 0.4 V
Rp(ODext) External pullup resistor on open drain IOs (ID and DIR) 200 kΩ
Rp(cm_med) External pull-up resistor on CURRENT_MODE pin to advertise 1.5-A current 500 kΩ
Rp(cm_high) External pull-up resistor on CURRENT_MODE pin to advertise 3-A current 10 kΩ
VBUS_DET IO Pins (Connected to System VBUS signal through external resistor)
VBUS(THR) VBUS threshold range 2.4 3.3 4.2 V
VBUS_DET(THR) VBUS_DET pin threshold 236 315 394 mV
RVBUS External resistor between VBUS and VBUS_DET pin 850 900(1) 910 KΩ
RVBUS(PD) Internal pulldown resistance for VBUS_DET 95 KΩ
(1) If smaller RVBUS is desired add an additional resistor from VBUS_DET pin to GND in parallel to internal 95K resistor keeping the same ratio of pull-up and pull-down resistors.

6.6 Switching Characteristics

over operating free-air temperature range (unless otherwise noted)
PARAMETER MIN TYP MAX UNIT
tCCCB_DEFAULT Port attachment debounce time 168 ms
tVBUS_DB Debounce of VBUS_DET pin after valid VBUS_THR (See Figure 1.) 2 ms
TUSB319-Q1 tvbus_db_sllseo6.gif Figure 1. VBUS Detect and Debounce

7 Detailed Description

7.1 Overview

The USB Type-C ecosystem operates around a small form factor connector and cable that is flippable and reversible. Because of the nature of the connector, a scheme is needed to determine the connector orientation. Additional schemes are needed to determine when a USB port is attached and the acting role of the USB port (DFP, UFP), as well as to communicate Type-C current capabilities. These schemes are implemented over the CC pins according to the USB Type-C specifications. The TUSB319-Q1 device provides Configuration Channel (CC) logic for determining USB port attach and detach, cable orientation, and Type-C current mode for DFP applications.

7.1.1 Cables, Adapters, and Direct Connect Devices

Type-C Specifications defines several cables, plugs and receptacles to be used to attach ports. The TUSB319-Q1 device supports all cables, receptacles, and plugs. The device does not support e-marking.

7.1.1.1 USB Type-C Receptacles and Plugs

Below is list of Type-C receptacles and plugs supported by the device:

  • USB Type-C receptacle for USB2.0 and USB3.1 and full-featured platforms and devices
  • USB full-featured Type-C plug
  • USB2.0 Type-C plug

7.1.1.2 USB Type-C Cables

Below is a list of Type-C cables types supported by the device:

  • USB full-featured Type-C cable with USB3.1 full-featured plug
  • USB2.0 Type-C cable with USB2.0 plug
  • Captive cable with either a USB full-featured plug or USB2.0 plug

7.2 Functional Block Diagram

TUSB319-Q1 fbd_sllsev4.gif

7.3 Feature Description

Table 1. Supported Features for the TUSB319-Q1 Device by Mode

SUPPORTED FEATURES DFP
Port attach and detach Yes
Cable orientation Yes
Current advertisement Yes
Legacy cables Yes

7.3.1 Downstream Facing Port (DFP) - Source

The TUSB319-Q1 is a DFP device; it presents the appropriate Rp resistors on both CC pins, based on the state of the CURRENT_MODE pin to advertise the desired current level (USB-standard, 1.5 A and 3 A).

The TUSB319-Q1 can operate with older USB Type-C 1.0 devices except for a USB Type-C 1.0 DRP device. This limitation is a result of backwards compatibility problem between USB Type-C 1.1 DFP and a USB Type-C 1.0 DRP.

7.3.2 Type-C Current Mode

The TUSB319-Q1 device supports both advertising Type-C current by means of the CURRENT_MODE pin, which allows the CC controller to advertise 500 mA (for USB2.0) or 900 mA (for USB3.1) if CURRENT_MODE pin is left unconnected or pulled to GND. If a higher level of current is required, the CURRENT_MODE can be pulled up to VDD through a 500-kΩ resistor to advertise medium current at 1.5 A or pulled up to VDD through a 10-kΩ resistor to advertise high current at 3 A. Table 2 lists the Type-C current advertisements and detection.

Table 2. Type-C Current Advertisement and Detection

TYPE-C CURRENT CURRENT ADVERTISEMENT
Default 500 mA (USB2.0)
900 mA (USB3.1) 		CURRENT_MODE = L
Medium - 1.5 A CURRENT_MODE = M
High - 3 A CURRENT_MODE = H

7.3.3 VBUS Detection

The TUSB319-Q1 device supports VBUS detection according to the Type-C Specification. The system VBUS voltage must be routed through a 900-kΩ resistor to the VBUS_DET pin on the TUSB319-Q1. When voltage on VBUS_DET pin is below the VBUS(THR) and Rd is detected on either CC1 or CC2, the TUSB319 assumes system VBUS is at vSafe0V (VBUS < 800 mV) and will assert ID low.

If VBUS_DET pin is left unconnected system needs to ensure that the VBUS level is below vSafe0V before VBUS is enabled.

7.3.4 Cable Orientation

The TUSB319-Q1 detects the cable orientation by monitoring the voltage on the CC pins. When a voltage level within the proper threshold is detected on CC1, the DIR pin is pulled low. When a voltage level within the proper threshold is detected on CC2, the DIR is pulled high. The DIR pin is an open drain output.

7.4 Device Functional Modes

The TUSB319-Q1 device has two functional modes. Table 3 lists these modes:

Table 3. USB Type-C States According to TUSB319-Q1 Functional Modes

MODES GENERAL BEHAVIOR STATES(1)
Unattached USB port unattached. Unattached.SRC
AttachWait.SRC
Active USB port attached. Attached.SRC
(1) Required; not in sequential order.

7.4.1 Unattached Mode

Unattached mode is the primary mode of operation for the TUSB319-Q1 device, because a USB port can be unattached for a lengthy period of time. In unattached mode, all IOs are operational. After the TUSB319-Q1 device is powered up, the part enters unattached mode until a successful attach has been determined.

7.4.2 Active Mode

Active mode is defined as the port being attached. When in active mode, the TUSB319-Q1 device communicates to the system that the USB port is attached. This happens through the ID pin. The TUSB319-Q1 device exits active mode when the cable is unplugged.

 
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