L4981AD Power Factor Corrector Loveminer A1 PSU Repair
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L4981AD Power Factor Corrector for A1 PSU Repair
Upgrade and repair your Loveminer A1 power supply with the L4981AD Power Factor Corrector. Designed specifically for Aisen A1 PSUs, this IC offers advanced power factor correction capabilities. With options for fixed frequency (L4981A) or modulated frequency (L4981B) operation, it optimizes the size of the input filter.
Replace Faulty Lovecore A1 Power Supply Parts
The L4981AD includes essential functions such as a power MOSFET gate driver, voltage reference, error amplifier, undervoltage lockout, current sensing, and soft-start. Ensure improved efficiency, reduced line current distortion, and reliable performance with the L4981AD Power Factor Corrector.
L4981AD Power Factor Corrector Features:
| Feature | Description |
|---|---|
| Power Factor Corrector Type | L4981A / L4981B |
| Power Factor Control | Up to 0.99 P.F. |
| Line Current Distortion | <5% |
| Input Mains Regulation | Universal |
| Average Current Mode PWM | Minimum noise sensitivity |
| Output Type | High current bipolar and DMOS TO-TEM pole |
| Start-Up Current | 0.3mA (typical) |
| Undervoltage Lockout | With hysteresis and programmable turn-on threshold |
| Protection | Overvoltage, overcurrent |
| On-Chip Reference Accuracy | 2% (externally provided) |
| Soft Start | Included |
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