1 Features

1• 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

2 Applications

• USB Type C Host Port in Notebook for Sleep

Charging

• LCD Monitor/Docking Station and Charging

Cradles

• Type C USB Wall Chargers

3 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).