UCC2803DTRG4 by Texas Instruments | Current Mode PWM Controller | Avnet ASIA
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UCC2803DTRG4

Texas Instruments

Current Mode PWM Controller 1A 8-Pin SOIC T/R

Manufacturer Part #: UCC2803DTRG4

Alternate Part #: UCC2803DTRG4


legend RoHS Compliant

Descriptions

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Information

The UCC1800/1/2/3/4/5 family of high-speed, low-power integrated circuits contain all of the control and drive components required for off-line and DC-to-DC fixed frequency current-mode switching power supplies with minimal parts count.

These devices have the same pin configuration as the UC1842/3/4/5 family, and also offer the added features of internal full-cycle soft start and internal leading-edge blanking of the current-sense input.

The UCC1800/1/2/3/4/5 family offers a variety of package options, temperature range options, choice of maximum duty cycle, and choice of critical voltage levels. Lower reference parts such as the UCC1803 and UCC1805 fit best into battery operated systems, while the higher reference and the higher UVLO hysteresis of the UCC1802 and UCC1804 make these ideal choices for use in off-line power supplies.

The UCC180x series is specified for operation from –55°C to +125°C, the UCC280x series is specified for operation from –40°C to +85°C, and the UCC380x series is specified for operation from 0°c to +70°C.

Key Features

  • 100µA Typical Starting Supply Current
  • 500µA Typical Operating Supply Current
  • Operation to 1 MHz
  • Internal Soft Start
  • Internal Fault Soft Start
  • Internal Leading-Edge Blanking of the Current Sense Signal
  • 1 Amp Totem-Pole Output
  • 70ns Typical Response from Current-Sense to Gate Drive Output
  • 1.5% Tolerance Voltage Reference
  • Same Pinout as UC3842 and UC3842A
  • Technical Attributes

    Description
    Value
    Find similar Parts
    On/Off Pin
    No
    Max Processing Temp
    260
    Mounting
    Surface Mount
    Output Current
    1000 mA
    Lead Finish
    Gold
    Maximum Duty Cycle
    100 %
    Operating Temperature
    -40 to 85 °C
    MSL Level
    1
    Number of PWM Outputs
    1
    Adjustable Output
    No
    Product Dimensions
    5 x 4 x 1.5 mm
    Switching Frequency
    1000 kHz
    Supplier Package
    SOIC
    Fall Time
    44 ns
    Pin Count
    8
    Rise Time
    41 ns

    ECCN / UNSPSC

    Description
    Value
    ECCN:
    EAR99
    SCHEDULE B:
    8542390000"
    UNSPSC:
    32101600
    UNSPSC VERSION:
    V15.1101

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