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CD5021 & LM5021 Current-Mode PWM Controller Chip

The CD5021 off-line Pulse-width Modulation (PWM)controller contains all of the features needed toimplement highly efficient off-line single-endedflyback and forward power converters usingcurrent-mode ...
  • Model: CD5021
  • Brand: MK
  • Price:$8.0   /    Stock: 99999
  • Product Description:

    The CD5021 off-line Pulse-width Modulation (PWM)controller contains all of the features needed toimplement highly efficient off-line single-endedflyback and forward power converters usingcurrent-mode control.The CD5021 features include an ultra-low start-upcurrent, which minimizes power losses in the highvoltage start-up network. A skip cycle modereduces power consumption with light loads forenergy conserving applications. Additional featuresinclude under-voltage lockout, cycle-by-cyclecurrent limit, hiccup mode overload protection,slope compensation, soft-start and oscillatorsynchronization capability. CD5021 has totalpropagation delays less than 100 ns and a 1 MHzcapable oscillator that is programmed with a singleresistor.

    Ultra-low Startup Current (25 μA Maximum)

    Current Mode Control

    Skip Cycle Mode for Low Standby Power

    Single Resistor Programmable Oscillator

    Synchronizable Oscillator

    Adjustable Soft-Start

    Integrated 0.7A Peak Gate Driver

    Direct Opto-Coupler Interface

    Maximum Duty Cycle Limiting 80%

    Slope Compensation

    Cycle-by-Cycle Overcurrent Protection

    Hiccup Mode for Continuous Overload Protection

    Leading Edge Blanking of Current Sense Signal

    Packages: VSSOP8

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    ModelFunctionControl ModeInput VoltageTemperatureMaximum DutyPackaging formCORR TI
    CD5022Current mode boost, SEPIC And flyback control.Based on current mode control6V-60V-40~1250.9VSSOP-10LM5022
    CD5021Off-line PWM PW control
    8V-30V-40~1250.85VSSOP-8LM5021
    CD5041Cascade PWM control
    15V-90V-40~125TSSOP-16/WSON-16LM5041
    CD5032Current-mode high voltage PWM control
    13V-100V-40~1250.76TSSOP-16LM5032
    CD5020Current-mode high voltage PWM control
    13V~80V-40~1250.8VSSOP-10LM5020
    CD5020ACurrent-mode high voltage PWM control
    13V~90V-40~1250.8VSSOP-10/WSON-10LM5020A
    CD5026Current-mode active clamping PWM control
    13V~100V-40~1250.76TSSOP-16/WSON-16LM5026
    CD5030Current-mode high-voltage PWM push-pull control
    14V~90V-40~1250.5VSSOP-10/WSON-10LM5030
    CD5025Voltage source active clamping PWM controlFeedforward voltage mode control13V~100V-40~1250.8TSSOP-16/WSON-16LM5025
    CD5035Half-bridge topology power conversion PWM controlVoltage control mode13V~100V-40~1250HTSSOP-20/WQFN-24LM5035


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