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USB Charging Controller with Integrated Power Switch 1 Port for CDP and SDP Support

Product Description

The PI5USB2546 is a USB charging port controller and power switch with an integrated USB 2.0 high-speed data line (D+/ D–) switch. PI5USB2546 provides the electrical signatures on D+/D– to support charging schemes listed under device feature section. This part is compatible with both popular BC1.2 compliant and non-BC1.2 compliant devices. System wake up (from S3) with a mouse/keyboard (both low speed and full speed) is fully supported in the PI5USB2546. Additionally, PI5USB2546 supports two distinct power management features, namely, power wake and port power management (PPM) through /STATUS pin. Power wake allows for power supply control in S4/S5 charging and PPM manages port power in a multi-port application. The PI5USB2546 73-mΩ power-distribution switch is intended for applications where heavy capacitive loads and shortcircuits are likely to be encountered. Two programmable current thresholds provide flexibility for setting current limits and load detect thresholds


  • Supports CDP/DCP Modes per USB Battery Charging Specification 1.2
  • Supports Shorted Mode per Chinese Telecommunication Industry Standard YD/T1591- 2009
  • Supports non-BC1.2 Charging Modes by Automatic Selection
    • Divider-1A mode
    • Divider-2A mode
    • DCP-1.2V mode
  • Supports Sleep-Mode Charging and Mouse/ Keyboard Wake up
  • Automatic SDP/CDP Switching for Devices that do not request for the CDP Ports
  • Load Detection for Power Supply Control in S4/ S5 Charging and Port Power Management in all Charge Modes
  • Compatible with USB 2.0/3.0 Power Switch requirements
  • Integrated 73-mΩ (Typ.) High-Side MOSFET
  • Adjustable Current-Limit up to 3A(Typ.)
  • Operating Range:4.5V to 5.5V
  • Max Device Current
    • 2μA at Device Disabled
    • 270μA at Device Enabled
  • Device Package: TQFN 3.0x3.0-16L
  • UL Listed and CB File No. E341484


  • USB Ports (Host and Hubs)
  • Notebook and Desktop PCs
  • Universal Wall Charging Adapters

Product Specifications

Product Parameters

Analog or Digital? Mixed Signal
Configuration None
Differential Channels N/A
HotInsertion No
Lanes 1
OtherFeatures Controller+ Power Switch, Charging and Data Transfer
RailToRail No
Signal Type N/A
Single Ended Channels N/A
Type N/A
Voltage 5

Quality & Reliability

Technical Documents

Application information

Design tool model software

Evaluation board

Recommended Soldering Techniques

Additional Technical Documents are available upon request: 
Application information, Evaluation board, and Other technical documents

Request Documents
Orderable Part Number Authorized Distributor Quantity Inventory Date Buy Online Region
PI5USB2546AZHEX Arrow Electronics 1730 3/26/2019 Buy Now Americas
PI5USB2546AZHEX Mouser Electronics Inc. 2732 3/26/2019 Buy Now Americas
PI5USB2546AZHEX Digi-Key Electronics 10904 3/25/2019 Buy Now Americas
PI5USB2546QZHEX Mouser Electronics Inc. 3500 3/26/2019 Buy Now Americas
PI5USB2546QZHEX Digi-Key Electronics 2150 3/25/2019 Buy Now Americas
PI5USB2546ZHEX Mouser Electronics Inc. 584 3/26/2019 Buy Now Americas
PI5USB2546ZHEX Digi-Key Electronics 3500 3/25/2019 Buy Now Americas


Product Change Notices

PCN # Issue Date Subject
14-19 2014-05-09 Add Nantong Fujitsu Microelectronics Co. Ltd. (NFME) as approved vendor listing for IC products in the QSOP, TSSOP, MSOP, QFN and LQFP packages.