Pulse Width Modulator Control Circuit

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 common-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. This device also 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 capable of sinking and sourcing in excess of 200 mA. The output stage of the SG3525A features NOR Logic resulting in a low output for an off-state.
By ON Semiconductor
SG3525A 's PackagesSG3525A 's pdf datasheet
SG3525ADWG SO
SG3525ADWR2G SO
SG3525ANG PDIP
SG3525ADW SO
SG3525ADWR2 SO
SG3525AN PDIP




SG3525A Pinout, Pinouts
SG3525A pinout,Pin out
This is one package pinout of SG3525A,If you need more pinouts please download SG3525A's pdf datasheet.

SG3525A Application circuits
SG3525A circuits
This is one application circuit of SG3525A,If you need more circuits,please download SG3525A's pdf datasheet.


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