Description
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
Features
- 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 MOTOROLA ANALOG IC DEVICE DATA varies from 0.5 V to 3.5 V. Both error amplifiers have a common mode input range from.
- 0.3 V to (VCC.
- 2.0 V), and may be used to sense power supply output voltage and current. The error.
- amplifier outputs are active high and are ORed together at the noninverting input of the pulse.
- width modulator comparator. With this configuration, the amplifier that demands minimum output on time, dominates control of the.
