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UCS1002-2

Programmable USB Port Power Controller with Charger Emulation

Status: In Production

Features:

  • 2.9 V to 5.5 V source voltage range
  • Up to 2.5 A current with 55 mΩ On Resistance
  • Over-current trip or constant current limiting
  • Soft turn-on circuitry
  • Programmable current limit
  • Dynamic thermal management
  • Under- and over-voltage lockout
  • Back-drive, back-voltage protection
  • Latch or auto-recovery (low test current) fault handling
  • Selectable active high or low power switch enable
  • BC1.2 VBUS discharge port renegotiation function
  • Supports 12W charger emulation
  • Allows for active cables
  • USB-IF BC1.2 charging downstream port (CDP) and dedicated charging port (DCP) modes, YD/T-1591, and most Apple® and RIM® protocols standard; others as defined via the SMBus 2.0/I2C®
  • USB 2.0 compliant high-speed data switch (in Passthrough and CDP modes)
  • Nine preloaded charger emulation profiles for maximum compatibility coverage of peripheral devices
  • One custom programmable charger profile for portable device support for fully host controlled charger emulation
  • Custom Emulation profile uses unique stimulus and response method useful for future profiles.
  • Self-contained current monitoring and charge rationing for power allocation applications
  • Automatic shutdown when Battery Full option
  • Low power Attach Detection and open-drain A_DET# pin
  • Ultra low power Sleep state
  • Optional split supply support for VBUS and VDD for low power in system standby states
  • Wake on Attach USB
  • Supports Block Write and Read
  • Multiple SMBus addresses
  • Wide operating temperature range: -40°C to +85°C
  • IEC61000-4-2 8 / 15 kV ESD immunity
  • UL recognized and EN/IEC 60950-1 (CB) certified
  • Notebook and Netbook Computers
  • Tablets and E-book Readers
  • Desktops and Monitors
  • Docking Stations and Printers
  • AC-DC wall adapters
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Overview
Documents
Development Environment
Similar Devices
RoHS Information
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Device Overview

Summary

The UCS1002-2 provides a USB port power switch for precise control of up to 2.5 amperes continuous current with over-current limit (OCL), dynamic thermal management, latch or auto-recovery (low test current) fault handling, selectable active low or high enable, under- and over-voltage lockout, back-drive protection, and back-voltage protection.

Split supply support for VS and VDD is an option for low power in system standby states. This gives battery operated applications, like notebook PCs, the ability to detect attachments from a sleep or off state. After the Attach Detect is flagged, the system can decide to wake up and/or provide charging.

In addition to power switching and current limiting modes, the UCS1002 will automatically charge a wide variety of portable devices, including USB-IF BC1.2, YD/T-1591 (2009), most Apple® and RIM®, and many others. Nine preloaded charger emulation profiles maximize compatibility coverage of peripheral devices. As well, a customizable charger emulation profile is available to accommodate unique existing and future portable device handshaking/signature requirements.

The UCS1002-2 also provides current monitoring to allow intelligent management of system power and charge rationing for controlled delivery of current regardless of the host power state. This is especially important for battery operated applications that want to provide power in a standby and/or off state but do not want to drain the battery excessively.

The UCS1002-2 is available in a 20-pin QFN 4 mm x 4 mm package.

Additional Features

    Highlights

    • Port power switch with two current limit behaviors
      • 2.9 V to 5.5 V source voltage range
      • Up to 2.5 A current with 55 mΩ On Resistance
      • Over-current trip or constant current limiting
      • Soft turn-on circuitry
      • Programmable current limit
      • Dynamic thermal management
      • Under- and over-voltage lockout
      • Back-drive, back-voltage protection
      • Latch or auto-recovery (low test current) fault handling
      • Selectable active high or low power switch enable
      • BC1.2 VBUS discharge port renegotiation function
    • Selectable/automatic cycling of USB data line charger emulation profiles
        • Supports 12W charger emulation
        • Allows for active cables
        • USB-IF BC1.2 charging downstream port (CDP) and dedicated charging port (DCP) modes, YD/T-1591, and most Apple® and RIM® protocols standard; others as defined via the SMBus 2.0/I2
        • USB 2.0 compliant high-speed data switch (in Passthrough and CDP modes)
        • Nine preloaded charger emulation profiles for maximum compatibility coverage of peripheral devices
        • One custom programmable charger profile for portable device support for fully host controlled charger emulation
        • Custom Emulation profile uses unique stimulus and response method useful for future profiles.
      • Self-contained current monitoring and charge rationing for power allocation applications
      • Automatic shutdown when Battery Full option
      • Low power Attach Detection and open-drain A_DET# pin
      • Ultra low power Sleep state
      • Optional split supply support for VBUS and VDD for low power in system standby states
      • Wake on Attach USB
      • SMBus 2.0/I2C communications
        • Supports Block Write and Read
        • Multiple SMBus addresses
      • Wide operating temperature range: -40°C to +85°C
      • IEC61000-4-2 8 / 15 kV ESD immunity
      • UL recognized and EN/IEC 60950-1 (CB) certified

      Target Applications

      • Notebook and Netbook Computers
      • Tablets and E-book Readers
      • Desktops and Monitors
      • Docking Stations and Printers
      • AC-DC wall adapters
    Parametrics
    Name
    Value
    Description
    Programmable USB Port Power Controller with Charger Emulation
    Hi-Speed USB 2.0 Switch
    1
    USB Port Power Switch
    1
    Battery Charger Emulation Profiles
    10
    8 Resistor Set Current Limits
    Up to 2.5A
    Power Allocation
    yes
    Attach Detection Output
    yes
    Interface
    I2C /SMBus
    Current Measurement
    yes

    Documents

    Jump to:

    Data Sheet

    08/15/2013
    1155KB

    Gerber Files

    Software


    Development tools data is currently unavailable.

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    RoHS Information

    Part Number
    Device Weight (g)
    Shipping Weight (Kg)
    Lead Count
    Package Type
    Package Width
    Solder Composition
    JEDEC Indicator
    RoHS
    China EFUP
    UCS1002-2-BP
    0.043100
    0.632653
    20
    QFN
    4x4x0.9mm
    Matte Tin
    e3
    UCS1002-2-BP-TR
    0.043100
    0.212121
    20
    QFN
    4x4x0.9mm
    Matte Tin
    e3
    To see a complete listing of RoHS data for this device, please Click here
    Shipping Weight = Device Weight + Packing Material weight. Please contact sales office if device weight is not available.

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