FA5331P Bipolar IC For Power Factor Correction DIP-16
The FA5331P is a control integrated circuit (IC) designed for power factor correction (PFC) systems. This first-generation IC utilizes an average current control system to ensure stable operation and can achieve a power factor of 99% or better. It is specifically designed to control external power MOS-FETs, making it a crucial component in AC-DC power supplies to improve efficiency and meet regulatory standards.
Features
- Drive circuit for connecting a power MOS-FET (Io=±1.5A).
- Pulse-by-pulse overcurrent and overvoltage limiting function.
- Output ON/OFF control function by external signals.
- External synchronizing signal terminal for synchronous operation with other circuits.
- Undervoltage malfunction prevention function.
- Low standby current (90µA typical) for a simple start-up circuit.
- 16-pin package (DIP/SOP).
Specifications
| Parameter | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|
| Supply voltage (Vcc, Vc) | 10 | – | 28 | V |
| Operating temperature (Topr) | -30 | – | +85 | °C |
| Output current (Io) | – | ±1.5 | – | A |
| Standby current (ICCST at Vcc=14V) | – | 90 | 140 | µA |
| Oscillation frequency (fosc) | 10 | – | 220 | kHz |
| OFF to ON threshold voltage | 14.3 | 15.3 | 16.3 | V |
| ON to OFF threshold voltage | 7.6 | 8.3 | 9.0 | V |
Pin Configuration
Applications
- Switching power supplies for desktop PCs and servers
- Power supplies for LCD and PDP televisions
- AC adapters for notebooks and other electronic devices
- Ballasts for fluorescent and HID lamps
- General-purpose power supplies requiring high power factor
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