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SG3525A Datasheet Pulse Width Modulator Control Circuit

Manufacturer: onsemi

Overview: Pulse Width Modulator Control Circuit SG3525A The SG3525A pulse width modulator control circuit offers improved performance and lower external parts count when implemented for controlling all types of switching power supplies. The on−chip +5.1 V reference is trimmed to "1% and the error amplifier has an input mon−mode voltage range that includes the reference voltage, thus eliminating the need for external divider resistors. A sync input to the oscillator enables multiple units to be slaved or a single unit to be synchronized to an external system clock. A wide range of deadtime can be programmed by a single resistor connected between the CT and Discharge pins.

Key Features

  • built.
  • in soft.
  • start circuitry, requiring only an external timing capacitor. A shutdown pin controls both the soft.
  • start circuitry and the output stages, providing instantaneous turn off through the PWM latch with pulsed shutdown, as well as soft.
  • start recycle with longer shutdown commands. The under voltage lockout inhibits the outputs and the changing of the soft.
  • start capacitor when VCC is below nominal. The output stages are totem.
  • pole design ca.

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SG3525A Distributor