Overview
The onsemi MC33262PG is an active power factor correction controller designed for use in various power management applications. It is specifically tailored for use as a preconverter in electronic ballast and off-line power converter systems. This integrated circuit features a range of functionalities to ensure efficient and reliable power factor correction, including an internal startup timer, a one quadrant multiplier for near unity power factor, and a zero current detector for critical conduction operation. The MC33262PG also includes protective features such as an overvoltage comparator, undervoltage lockout with hysteresis, and cycle-by-cycle current limiting to enhance system reliability and safety.
Key Specifications
| Parameter | Value |
|---|---|
| Supply Voltage-Max | 36V |
| Supply Current-Max | 20mA |
| Power Dissipation | 800mW |
| Operating Temperature Range | -40°C to +105°C |
| Storage Temperature Range | -65°C to +150°C |
| Thermal Resistance | 100°C/W |
| Package Style | PDIP-8 |
| Mounting Method | Through Hole |
Key Features
- Overvoltage Comparator to eliminate runaway output voltage
- Internal Startup Timer for stand-alone applications
- One Quadrant Multiplier for near unity power factor
- Zero Current Detector for critical conduction operation
- Trimmed 2% Internal Bandgap Reference
- Totem Pole Output with High State Clamp for MOSFET gate protection
- Undervoltage Lockout with 6.0 V of Hysteresis
- Low Startup and Operating Current
- Supersedes functionality of SG3561 and TDA4817
- Pb-Free and Halide-Free Device
Applications
The MC33262PG is primarily used in electronic ballast and off-line power converter applications. It is suitable for systems requiring active power factor correction to achieve near unity power factor. Other potential applications include preconverter stages in various power management systems where efficient and reliable power factor control is essential.
Q & A
- What is the primary function of the MC33262PG?
The MC33262PG is an active power factor correction controller designed for use in electronic ballast and off-line power converter applications.
- What is the maximum supply voltage for the MC33262PG?
The maximum supply voltage for the MC33262PG is 36V.
- What is the operating temperature range of the MC33262PG?
The operating temperature range is -40°C to +105°C.
- What protective features does the MC33262PG include?
The MC33262PG includes features such as an overvoltage comparator, undervoltage lockout with hysteresis, cycle-by-cycle current limiting, and a drive output high state clamp for MOSFET gate protection.
- What package styles are available for the MC33262PG?
The MC33262PG is available in PDIP-8 and other surface mount packages.
- Is the MC33262PG Pb-Free and Halide-Free?
- What is the purpose of the internal startup timer in the MC33262PG?
The internal startup timer is designed for stand-alone applications, enhancing the startup process.
- What is the role of the one quadrant multiplier in the MC33262PG?
The one quadrant multiplier helps achieve near unity power factor.
- How does the zero current detector function in the MC33262PG?
The zero current detector ensures critical conduction operation.
- What is the significance of the trimmed internal bandgap reference in the MC33262PG?
The trimmed internal bandgap reference provides a stable 2% reference voltage.
