Diodes' AP3983 switcher family regulates the output voltage and current on the primary side by piece-wise pulse frequency modulation (p-PFM) in discontinuous conduction mode with an operating frequency up to 80 kHz. The AP3983 family has built-in fixed cable voltage compensation. The AP3983 is offered in a SO-7 package, delivering output powers up to 10 W, and the PDIP-7 package, delivering powers up to 20 W.
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- Accurate primary-side regulation
- Eliminates opto-coupler and ‘431/CC-CV components; reducing overall BOM size and cost
- Built-in MOSFET
- 650 BVDSS for AP3983B/C/D
- 700 BVDSS for AP3983E/R
- Reduces solution size; high-drain voltage meets wide AC input
- Hiccup function
- Improves short-circuit protection
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- Internal output cable voltage-drop compensation
- Reduces external components and solution size
- Switching frequency dithering function
- Multi-interval pulse frequency modulation
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| Applications |
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- Chargers
- Data communications adapters
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- Home appliance power supplies
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