| Part Number | MC33060A |
| Manufacturer | ON Semiconductor |
| Title | Voltage Mode Single Ended Controllers |
| Description | MC34060A, MC33060A Fixed Frequency, PWM, Voltage Mode Single Ended Controllers The MC34060A is a low cost fixed frequency, pulse width modulation... |
| Features |
• Complete Pulse Width Modulation Control Circuitry • On−Chip Oscillator with Master or Slave Operation • On−Chip Error Amplifiers • On−Chip 5.0 V Reference, 1.5% Accuracy • Adjustable Dead−Time Control • Uncommitted Output Transistor Rated to 200 mA Source or Sink • Undervoltage Lockout • These are... |
| File Size | 158.93KB |
| Datasheet |
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MC33060A : 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). An internal–linear sawtooth oscillator is frequency–programmable by two external components, RT and CT. The approximate oscillator frequency is determined by: fosc ^ 1.2 RT • CT For more information refer to Figure 3. Output pulse width modulation is accomplished by comparison of the positive sawtooth waveform across capacitor CT to either of two control signals. The output is enabled only during that portion of time when the sawtooth voltage is greater than the control signals. Therefore, an increase in c.