Product Overview
The L6562AN from STMicroelectronics is a transition-mode (TM) power factor correction (PFC) controller in a DIP-8 package. It features a highly linear multiplier with THD optimizer, 1% accurate internal reference, ultra-low 30μA startup current, and 600mA/800mA source/sink gate driver for IEC61000-3-2 compliant power supplies up to 400W.
Key Specifications
| Operating Mode | Transition Mode (Critical Conduction Mode) |
| Supply Voltage | 10.5V to 22.5V |
| Startup Current | 30μA typ. |
| Quiescent Current | 2.5mA typ. |
| Reference Voltage | 2.5V (1% accuracy at TJ=25°C) |
| Gate Drive Source Current | -600mA peak |
| Gate Drive Sink Current | +800mA peak |
| OVP | Dynamic and Static overvoltage protection |
| Disable Function | Voltage on INV pin below 0.2V |
| Package | DIP-8 (through-hole) |
| Operating Temperature | -25°C to +125°C |
Features
- Proprietary multiplier design for minimum THD
- Very accurate adjustable output overvoltage protection
- Ultra-low 30μA startup current
- Low 2.5mA quiescent current
- Digital leading-edge blanking on current sense
- Disable function via INV pin
- 1% internal reference voltage accuracy
- 600mA/800mA totem pole gate driver
- Active pull-down during UVLO and voltage clamp
- THD optimizer circuit for reduced crossover distortion
Applications
- PFC pre-regulators for IEC61000-3-2 compliant SMPS
- Flat TV and monitor power supplies
- Desktop PC and gaming console PSUs
- High-end AC-DC adapters up to 400W
- Electronic ballasts