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UCC3831

Features: · Fully USB Compliant· Support Four 5V Peripherals and One USB 3.3V Controller· Separate Power Enables· 500mA Current Limiting per Channel· Separate Open Drain Fault Indicator for Each Channel· 3.3V Output for USB Controller· Available in 28 Pin Wide Surface Mount and DIPPinoutSpecificat...

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SeekIC No. : 004536016 Detail

UCC3831: Features: · Fully USB Compliant· Support Four 5V Peripherals and One USB 3.3V Controller· Separate Power Enables· 500mA Current Limiting per Channel· Separate Open Drain Fault Indicator for Each Cha...

UCC3831 Data Sheet

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Part Number:
UCC3831
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

· Fully USB Compliant
· Support Four 5V Peripherals and
  One USB 3.3V Controller
· Separate Power Enables
· 500mA Current Limiting per Channel
· Separate Open Drain Fault
  Indicator for Each Channel
· 3.3V Output for USB Controller
· Available in 28 Pin Wide Surface Mount and DIP


Pinout

Connection Diagram


Specifications

VFIL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9V
VCON Supply Votage . . . . . . . . . . . . . . . . . . . . . . . . . . . .9V
Logic Inputs (ENA-D, ENHUB)
Maximum Forced Voltage . . . . . . . . . . . . . . . . .  0.3V to 7V
Maximum Forced Current . . . . . . . . . . . . . . . . . . . . . . ±1mA
V33
Maximum Forced Voltage. . . . . . . . . . . . . . . . . . . . . . . . . 5V
Maximum Current . . . . . . . . . . . . . . . . . . . . . . . . . . . 200mA
V5A-D
Maximum Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9V
Maximum Current . . . . . . . . . . . . . . . . . . . . . . . . . . . 750mA
Storage Temperature . . . . . . . . . . . . . . . . -65°C to +150°C
Junction Temperature. . . . . . . . . . . . . . . . 55°C to +150°C
Lead Temperature (Soldering, 10 sec.) . . . . . . . . . . +300°C


Description

The UCC3831 Power Controller is designed to provide a self powered USB hub with a local 3.3V regulated voltage and four 5V regulated voltages for USB ports. Each of the 5V output ports is individually enabled for optimal port control. Each port also provides an overcurrent fault signal indicating that the port has exceeded a 500mA current limit. The 3.3V linear regulator is used to power the local USB microcontroller. This regulator is protected with a 100mA current limit and has a logic level enable input.

The UCC3831 can be configured to provide USB port power from a loosely regulated voltage such as a Filament voltage internal to a monitor. Pre-regulation is provided by an internal linear regulator controller and one external logic level N-channel MOSFET. The UCC3831 can also be configured without using the pre-regulator stage by connecting the VREG pins to a regulated 5.5V 2A source.

The UCC3831 comes in a 28-pin wide SOIC power package optimized for power dissipation, and is protected by internal over-temperature shutdown mechanism, which disables the outputs should the internal junction temperature exceed 150°C.




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