TPS25810_15 Datasheet, PDF (1/36 Pages) Texas Instruments – TPS25810 USB Type-C DFP Controller and Power Switch with Load Detection

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TPS25810
SLVSCR1A – SEPTEMBER 2015 – REVISED SEPTEMBER 2015
TPS25810 USB Type-C DFP Controller and Power Switch with Load Detection
1 Features
•1 USB Type-C Rev. 1.1 Compliant DFP Controller
• Connector Attach/Detach Detection
• STD/1.5-A/3-A Capability Advertisement on CC
• Super Speed Polarity Determination
• V_BUS Application and Discharge
• V_CONN Application to Electronically Marked Cable
• Audio and Debug Accessory Identification
• 0.7-µA (typ) I_DDQ with No Attachment
• Three Input Supply Options
– IN1: USB Charging Supply
– IN2: V_CONN 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 I_Limit (±7.1%) - Programmable
• Port Power Management Enables Power
Resource Optimization Across Multi-Ports
• Package: 20-Pin WQFN (3 x 4)
• UL and CB Tests Underway
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 V_BUS and communicates
the selectable V_BUS 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 V_CONN 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).
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPS25810
WQFN (20)
3.00 mm x 4.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Simplified Schematic
Bus Power
CC Power
Auxiliary Power
4.5 V ± 6.5V
4.5 V ± 5.5V
2.9 V ± 5.5V
1202F
Control Signals
100 NŸ
(1%)
TPS25810
IN1
OUT
IN2
FAULT
AUX
LD_ DET
CC1
EN
CHG
CHG_HI
REF
CC2
UFP
POL
AUDIO
DEBUG
REF_ RTN GND Power Pad
6 x 100 NŸ
(optional )
VBUS
Power Switch
Status Signals
Type- C DFP
Status Signals
102F
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.