SG3525 - STMicroelectronics

SG3525 REGULATING PULSE WIDTH MODULATORS

The SG3525Aseries of pulse width modulator integrated circuits are designed to offer improved performance and lowered external parts count when used in designing all types of switching power supplies. The on-chip + 5.1 V reference is trimmed to ± 1 % and the input common-mode range of the error amplifier includes the reference voltage eliminating external re.

Features

NOR logic, giving a LOW output for an OFF state. PIN CONNECTIONS AND ORDERING NUMBERS (top view) Type SG2525A SG3525A Plastic DIP SG2525AN SG3525AN SO16 SG2525AP SG3525AP June 2000 1/12 SG2525A-SG3525A ABSOLUTE MAXIMUM RATINGS Symbol Vi VC IOSC Io IR IT Ptot Tj Tstg Top Parameter Supply Voltage Collector Supply Voltage Oscillator Charging Current Output Current, Source or Sink Reference Output Current Current through CT Terminal Logic Inputs Analog Inputs Total Power Dissipation at Tamb = 70 °C Junction Temperature Range Storage Temperature Range Operating Ambient Temperature : SG252.