Diodes Incorporated
W QFN3040 20

Image shown is for reference only. Actual package may vary. Refer to the product data sheet for package details.

Back to Power Switches - Automotive


USB Type-C DFP Controller and Power Switch with Load Detection

Contact Sales

Log in or register to manage email notifications about changes to datasheets or PCNs for this part.


The DIODES™ AP25810LQ device is a USB Type-C® downstream-facing port (DFP) controller with an integrated 3A rated USB power switch. The AP25810LQ device monitors the USB Type-C configuration channel (CC) lines to determine when a USB device is attached. If an upstream-facing port (UFP) device is attached, the AP25810LQ applies power to the 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 AP25810LQ also applies VCONN power to the cable CC pin. The device also identifies when USB Type-C audio or debug accessories are attached.

The AP25810LQ draws less than 0.7μA (typ.) when no device is attached. Additional system power saving is achievable in the S4 and S5 system power states by using the output to disable the high-power 5V 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 (3.3V), typically powering the system μC in low-power states (S4 and S5).

The AP25810LQ 30mΩ power switch has two selectable fixed-current limits that align with the Type-C current levels. The  output signals when the switch is in an overcurrent or overtemperature condition. The  output controls power management to multiple high-current Type-C ports in an environment where all ports cannot simultaneously provide high current (3A).

The AP25810LQ is available in a standard Green W-QFN3040-20 (Type A1) package with exposed PAD for improved thermal performance, and is RoHS-compliant.


  • USB Type-C Rev. 2.0 Compliant DFP Controller
  • Connector Attach or Detach Detection
  • STD, 1.5A or 3A Capability Advertisement on CC
  • Super-Speed Polarity Determination
  • VBUS Application and Discharge
  • VCONN Application to Electronically Marked Cable
  • Audio and Debug Accessory Identification
  • 7μA (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
  • 30mΩ (Typ) High-Side MOSFET
  • Programmable 1.7A or 3.4A ILIM (±7.1%)
  • Port Power Management Enables Power Resource Optimization Across Multiple Ports
  • Transient Protection for CC1/CC2 Lines:
    • IEC 61000-4-2 Contact Discharge ±8kV
    • IEC 61000-4-2 Air Gap Discharge ±15kV
  • Thermally Efficient Low-Profile Package
  • Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
  • Halogen and Antimony Free. “Green” Device (Note 3)
  • The AP25810LQ is suitable for automotive applications requiring specific change control; this part is AEC-Q100 qualified, PPAP capable, and manufactured in IATF 16949 certified facilities.



  • USB Type-C host ports in notebook computers for sleep charging
  • LCD monitor/docking stations and charging cradles
  • USB Type-C wall chargers

Product Specifications

Product Parameters

Type USB Charger
AEC Qualified Yes
Compliance (Only Automotive supports PPAP) Automotive
Maximum Continuous Output Current (A) 3
(MAX) Maximum Current Limit Fixed (A) 3.64
Adjustable Current Limit No
Channels 1
Enable Logic Active High
Minimum Operating Voltage (V) 4.5
Maximum Operating Voltage (V) 5.5
Quiescent Current Typ (µA) 360
RDS(ON) (VIN = 5V) Typ (mΩ) 30
Minimum Power Supply Voltage (V) 4.5
Maximum Power Supply Voltage (V) 5.5
Output Discharge Yes
(TYP) Output Rise Time mS 1.8
OCP Output Latch Off No
OCP Flag Yes
Power Good No
Operating Ambient Temperature Range (°C) -40 to 125
Overtemperature Protection Yes
UL Certificate Yes

Related Content


Technical Documents

Recommended Soldering Techniques