TPS25810

(ACTIVE) USB Type-C Rev 1.2 DFP Controller and Power Switch With Load Detection

Diagram

Functional Diagram

Description

The TPS25810 is a USB Type-C Downstream Facing Port (DFP) controller with an integrated 3-A rated USB power switch. The TPS25810 monitors the Type-C Configuration Channel (CC) lines to determine when an USB device is attached. If an Upstream Facing Port (UFP) device is attached, the TPS25810 applies power to VBUS and communicates the selectable VBUS current sourcing capability to the UFP via the passthrough CC line. If the UFP is attached using an electronically marked cable, the TPS25810 also applies VCONN power to the cable CC pin. The TPS25810 also identifies when Type-C audio or debug accessories are attached.

The TPS25810 draws less than 0.7 uA (typ) when no device is attached. Additional system power saving is achievable in S4/S5 system power states by using the UFP output to disable the high power 5-V supply when no UFP is attached. In this mode the device is capable of running from an auxiliary supply (AUX) which can be a lower voltage supply (3.3 V), typically powering the system uC in low power states (S4/S5).

The TPS25810 34-mΩ power switch has two selectable fixed current limits that align with the Type-C current levels. The FAULT output signals when the switch is in an over current or over temperature condition. The LD_DET output controls power management to multiple high current Type-C ports in an environment where all ports cannot simultaneously provide high current (3 A).

Features

  • USB Type-C Rev. 1.2 Compliant DFP Controller
  • Connector Attach/Detach Detection
  • STD/1.5-A/3-A Capability Advertisement on CC
  • Super Speed Polarity Determination
  • VBUS Application and Discharge
  • VCONN Application to Electronically Marked Cable
  • Audio and Debug Accessory Identification
  • 0.7-µA (typ) IDDQ When Port Unattached
  • Three Input Supply Options
    • IN1: USB Charging Supply
    • IN2: VCONN Supply
    • AUX: Device Power Supply
  • Power Wake Supports Low Power in System Hibernate (S4) and OFF (S5) Power States
  • 34-mΩ (typ) High-Side MOSFET
  • 1.7/3.4-A ILimit (±7.1%) - Programmable
  • Port Power Management Enables Power Resource Optimization Across Multi-Ports
  • Package: 20-Pin WQFN (3 x 4) (1)
  • UL Listed – File No. E169910

(1)CC pins are IEC-61000-4-2 rated

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Parametrics

Function CC Controller    
Alternate Mode No    
Power Role Source    
Data Role DFP    
Internal Power Path 5V 250mA VCONN^5V 3A Source    
External Power Path Control N/A    
Iq (Typ) (uA) 1    
Realtime VBUS monitoring No    
Dead Battery Support No    
Operating Temperature Range (C) -40 to 125    
Rating Catalog    
Configuration DFP    
Package Group WQFN|20    

Companion Products

Technical Documents

Datasheet (1)

Application notes (2)

White papers (2)

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