| Allicdata Part #: | VIPER25LD-ND |
| Manufacturer Part#: |
VIPER25LD |
| Price: | $ 0.30 |
| Product Category: | Integrated Circuits (ICs) |
| Manufacturer: | STMicroelectronics |
| Short Description: | IC OFFLINE CONV PWM OVP 16-SOIC |
| More Detail: | Converter Offline Flyback Topology 136kHz 16-SO |
| DataSheet: | VIPER25LD Datasheet/PDF |
| Quantity: | 1000 |
| 1 +: | $ 0.30000 |
| 10 +: | $ 0.29100 |
| 100 +: | $ 0.28500 |
| 1000 +: | $ 0.27900 |
| 10000 +: | $ 0.27000 |
| Duty Cycle: | -- |
| Base Part Number: | VIPER25 |
| Mounting Type: | Surface Mount |
| Supplier Device Package: | 16-SO |
| Package / Case: | 16-SOIC (0.154", 3.90mm Width) |
| Operating Temperature: | -40°C ~ 150°C (TJ) |
| Control Features: | -- |
| Fault Protection: | Current Limiting, Over Temperature, Over Voltage |
| Power (Watts): | 20W |
| Frequency - Switching: | 136kHz |
| Series: | VIPer™ plus |
| Voltage - Supply (Vcc/Vdd): | 8.5 V ~ 23.5 V |
| Voltage - Start Up: | 14V |
| Topology: | Flyback |
| Voltage - Breakdown: | 800V |
| Internal Switch(s): | Yes |
| Output Isolation: | Isolated |
| Part Status: | Active |
| Packaging: | Tube |
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VIPER25LD is a synchronous step-down switch-mode power supply (SMPS) found in a variety of electrical products and technology. Since SMPS are used to convert AC to low DC voltage, they typically offer significant improvements in output power and efficiency, while also having a small footprint. VIPER25LD provides a wide input range and accurate output voltage, making it suitable for a variety of applications.
As previously mentioned, VIPER25LD belongs to the AC DC converters, Offline Switchers catalog. AC DC converter allows the conversion between an AC voltage to a lower DC voltage, to meet the power requirements of the device. This type of converter is used in applications such as computers, CCTV surveillance, printers, medical electronics and more. Offline Switchers are used to provide high efficiency and can be used in applications where low power consumption is desired.
The working principle of VIPER25LD can be divided into two stages: the power conversion and the power management. During power conversion, the power supply converts AC power to regulated DC voltage with a high-frequency switching operation. This is done by shorting the primary side of the transformer with a power transistor and then switching the transistor off immediately to provide an inductive current flow. This generates the required secondary rectified DC voltage.
The power management stage is concerned with providing the controlled output voltage. VIPER25LD provides control of the output voltage with the help of a PWM input pin. This allows for an adjustable output voltage. Moreover, protection features such as short circuit protection and over-current protection are incorporated to ensure that the converter is working safely. VIPER25LD provides excellent performance under heavy load conditions and typically offers high efficiency as well.
In conclusion, VIPER25LD is a synchronous step-down switch-mode power supply (SMPS) typically used in AC to low DC voltage applications. It belongs to the AC DC converters, Offline Switchers catalog and works using two stages: power conversion and power management. It is suitable for applications such as computers, CCTV surveillance, printers, medical electronics, and more. In addition, VIPER25LD offers excellent performance, providing adjustable output voltage, while also incorporating various protection features.
The specific data is subject to PDF, and the above content is for reference
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VIPER25LD Datasheet/PDF