UCC2808DTR-2 by Texas Instruments | APACCurrent Mode PWM Controller | Avnet ASIA
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信息

UCC2808DTR-2

Texas Instruments

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

制造商料号#: UCC2808DTR-2

替代型号#: UCC2808DTR-2


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描述

文档

替代/替换

信息

The UCC3808 is a family of BiCMOS push-pull, high-speed, low-power, pulse-width modulators. The UCC3808 contains all of the control and drive circuitry required for off-line or dc-to-dc fixed frequency current-mode switching power supplies with minimal external parts count.

The UCC3808 dual output drive stages are arranged in a push-pull configuration. Both outputs switch at half the oscillator frequency using a toggle flip-flop. The dead time between the two outputs is typically 60 ns to 200 ns depending on the values of the timing capacitor and resistors, thus limiting each output stage duty cycle to less than 50%.

The UCC3808 family offers a variety of package temperature range options, and choice of undervoltage lockout levels. The family has UVLO thresholds and hysteresis options for off-line and battery powered systems. Thresholds are shown in the table below.

技术参数

  • Dual Output Drive Stages in Push-Pull Configuration
  • 130-uA Typical Starting Current
  • 1-mA Typical Run Current
  • Operation to 1-MHz
  • Internal Soft Start
  • On Chip Error Amplifier With 2-MHz Gain Bandwidth Product
  • On Chip VDD Clamping
  • Output Drive Stages Capable Of 500-mA Peak Source Current, 1-A Peak Sink Current
  • 技术特性

    描述
    寻找类似物料
    Number of PWM Outputs
    2
    Adjustable Output
    No
    Product Dimensions
    5 x 4 x 1.5 mm
    Switching Frequency
    1000 kHz
    Supplier Package
    SOIC
    Maximum Duty Cycle
    50 %
    Pin Count
    8
    Rise Time
    25 ns
    On/Off Pin
    No
    Mounting
    Surface Mount
    Operating Temperature
    -40 to 85 °C
    MSL Level
    1
    Lead Finish
    Gold
    Fall Time
    25 ns
    Output Current
    1000 mA
    Max Processing Temp
    260

    ECCN / UNSPSC

    描述
    ECCN:
    EAR99
    计划交货期 B:
    8542390000"
    UNSPSC:
    32101600
    UNSPSC VERSION:
    V15.1101
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