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L4981A |
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| Part Number | L4981A |
| Manufacturer | STMicroelectronics (https://www.st.com/) |
| Description | The L4981 I.C. provides the necessary features to achieve a very high power factor up to 0.99. Realized in BCD 60II technology this power factor corrector (PFC) pre-regulator contains all the con- BLO... |
| Features |
to achieve a very high power factor up to 0.99. Realized in BCD 60II technology this power factor corrector (PFC) pre-regulator contains all the con-
BLOCK DIAGRAM
MULTIPOWER BCD TECHNOLOGY
DIP20
SO20
ORDERING NUMBERS: L4981X (DIP20) L4981XD (SO20)
trol functions for designing a high efficiency-mode power supply with sinusoidal line current consumption. The L4981 can be easily used in systems with mains voltages between 85V to 265V without any line switch. This new PFC offers the possibility to work at fixed frequency (L4981A) or modulated frequency (L4981B) optimizing the size of the in-... |
| Document |
 L4981A Data Sheet
PDF 2.56MB |
| No. | Parte # | Fabricante | Descripción | Hoja de Datos |
|---|---|---|---|---|
| 1 | L4981B |
STMicroelectronics |
POWER FACTOR CORRECTOR |
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| 2 | L4984 |
STMicroelectronics |
CCM PFC controller |
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| 3 | L4984D |
STMicroelectronics |
CCM PFC controller |
|
| 4 | L4985 |
STMicroelectronics |
CCM PFC controller |
|
| 5 | L4986 |
STMicroelectronics |
CCM PFC controller |
|
| 6 | L4987 |
STMicroelectronics |
VERY LOW DROP VOLTAGE REGULATORS WITH INHIBIT AND DROPOUT CONTROL FLAG |
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Desde 2024. D4U Semiconductor.
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