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1 Features

1? USB Type-C Rev. 1.2 Compliant DFP Controller

? Connector Attach or Detach Detection

? STD, 1.5-A, or 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 Is 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

? Programmable 1.7-A or 3.4-A ILIM (±7.1%)

? Port Power Management Enables Power

Resource Optimization Across Multiple Ports

? Package: 20-Pin WQFN (3 x 4) (1)

2 Applications

? Automotive Infotainment Systems

? Automotive Back-seat USB Charging

3 Description

The TPS25810-Q1 device is a USB Type-C

downstream-facing port (DFP) controller with an

integrated 3-A rated USB power switch. The

TPS25810-Q1 device monitors the Type-C

configuration channel (CC) lines to determine when a

USB device is attached. If an upstream-facing port

(UFP) device is attached, the TPS25810-Q1 device

applies power to VBUS and communicates the

selectable VBUS current-sourcing capability to the

UFP via the pass-through CC line. If the UFP is

attached using an electronically marked cable, the

TPS25810?Q1 device also applies VCONN power to

the cable CC pin. The TPS25810-Q1 device also

identifies when Type-C audio or debug accessories

are attached.

The TPS25810-Q1 device draws less than 0.7 μA

(typ) when no device is attached. Additional system

power saving is achievable in the S4 and 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 μC in

low-power states (S4 and S5).

The TPS25810-Q1 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 overcurrent or

overtemperature 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).