MC33060A - PULSE WIDTH MODULATOR CONTROLLER

The MC34060A is a fixed

frequency pulse width modulation control circuit, incorporating the primary building blocks required for the control of a switching power supply (see Figure 1).

linear sawtooth oscillator is frequency programmable by two external components

• ead time.
• control input to a fixed voltage, ranging between 0 V to 3.3 V. The pulse width modulator comparator provides a means for the error amplifiers to adjust the output pulse width from the maximum percent on.
• time, established by the dead time control input, down to zero, as the voltage at the feedback pin.