Power Factor Controller The MC33262 is a power factor controller IC manufactured by ON Semiconductor (formerly part of Motorola). Here are the key specifications, descriptions, and features from Ic-phoenix technical data files:
### **Manufacturer:**
ON Semiconductor (originally Motorola)
### **Specifications:**
- **Input Voltage Range:** 8V to 18V (VCC operating range)
- **Start-Up Current:** Typically 50µA
- **Operating Current:** Typically 4mA
- **Multiplier Input Voltage Range:** 0V to 3.8V
- **Multiplier Gain (K):** -1
- **Reference Voltage (VREF):** 7.5V (typical)
- **Oscillator Frequency Range:** Adjustable via external components
- **Output Drive Current:** 500mA (peak)
- **Operating Temperature Range:** -40°C to +105°C
### **Descriptions:**
- The MC33262 is a monolithic IC designed for power factor correction (PFC) in AC/DC power supplies.
- It operates in critical conduction mode (transition mode) to improve efficiency and reduce EMI.
- Includes a zero-current detector (ZCD) for transition mode operation.
- Features an internal start-up timer, error amplifier, and PWM comparator.
### **Features:**
- **Power Factor Correction (PFC):** Ensures near-unity power factor.
- **Zero-Current Detection (ZCD):** Enables transition mode operation.
- **Low Start-Up and Operating Current:** Enhances efficiency.
- **Overvoltage Protection (OVP):** Prevents output overvoltage conditions.
- **Undervoltage Lockout (UVLO):** Ensures proper operation within voltage range.
- **Programmable Oscillator Frequency:** Adjustable via external resistor and capacitor.
- **Multiplier for Input Current Shaping:** Maintains sinusoidal input current.
This information is strictly based on the manufacturer's datasheet and technical documentation.
