NRND = Not Recommended for New Design
High Frequency Primary Side Power Switcher For Off-Line SMPS
Contact Sales
Log in or register to manage email notifications about changes to datasheets or PCNs for this part.
The AP3983E is high frequency power switcher for power supplies with better conversion efficiency, better voltage & current accuracy, and improved protection functions. Typical applications include adapter for ADSL, home appliance power supply, LED lighting power supply and PC auxiliary power supplies. The AP3983E with built in MOSFET, regulates the output voltage and current in the primary side by piece-wise Pulse Frequency Modulation (p-PFM) in discontinuous conduction mode (DCM). The system operating frequency reduces linearly from heavy load to light load in each interval of the p-PFM, and enters constant current mode when the load current equals to the maximum system output current.
The AP3983E provides operating frequency dithering function to improve EMC performance of power supply. The AP3983E also has built-in fixed cable voltage drop compensation and adjustable line voltage compensation.
The AP3983E solution has fewer component number, smaller size, and lower total cost.
The AP3983E is packaged in PDIP-7.
| CableCompensation | 8% |
|---|---|
| Collector DC Current (A) | 5 |
| OperatingCurrent (µA) | 650 |
| Release Date | 201606 |
| StandbyPower (Max) (mW) | 75 |
| StartupCurrent (µA) | 0.6 |
| Switch | MOS |
| UVLOThresholdon/off (V) | 15.5/6.8 |
| BVDSS (Min) (V) | 700 |
A PCN may only apply to specific orderable part numbers in this datasheet. Please refer to the corresponding PCN to see the exact orderable part number(s) affected.
| PCN # | Issue Date | Implementation Date | Subject |
|---|---|---|---|
| PCN-2642 | 2023-09-05 | 2024-03-05 | Device End of Life (EOL) |
