| Allicdata Part #: | NCP1205PGOS-ND |
| Manufacturer Part#: |
NCP1205PG |
| Price: | $ 0.00 |
| Product Category: | Integrated Circuits (ICs) |
| Manufacturer: | ON Semiconductor |
| Short Description: | IC CTRLR PWM CM OVP UVLO HV 8DIP |
| More Detail: | Converter Offline Flyback Topology 90kHz ~ 125kHz ... |
| DataSheet: |  NCP1205PG Datasheet/PDF |
| Quantity: | 1000 |
| 1 +: | 0.00000 |
Specifications
| Duty Cycle: | -- |
| Base Part Number: | NCP1205 |
| Mounting Type: | Through Hole |
| Supplier Device Package: | 8-PDIP |
| Package / Case: | 8-DIP (0.300", 7.62mm) |
| Operating Temperature: | -25°C ~ 125°C (TJ) |
| Control Features: | -- |
| Fault Protection: | Current Limiting, Over Voltage, Short Circuit |
| Frequency - Switching: | 90kHz ~ 125kHz |
| Series: | -- |
| Voltage - Supply (Vcc/Vdd): | 8 V ~ 30 V |
| Topology: | Flyback |
| Voltage - Breakdown: | -- |
| Internal Switch(s): | No |
| Output Isolation: | Isolated |
| Part Status: | Obsolete |
| Packaging: | Tube |
Description
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A power integrated circuit (PMIC) is an integrated circuit which provides complete system power solutions including AC/DC, DC/DC, and other power management solutions. Typical applications include laptops, battery-powered devices, cellphones, and automotive systems. The NCP1205PG is a popular PMIC IC designed primarily to reduce power and improve regulation and stability in offline switcher applications. It offers various features that make it an ideal choice for such applications. This article will provide a comprehensive overview of the NCP1205PG, including its application field and working principle.The NCP1205PG is a current-mode peak current-mode PWM controller specifically designed for off-line converter applications. It has an integrated shield-driver which allows the user to easily select one of the available over-temperature protection thresholds. The NCP1205PG is powered by the external rectified voltage source and provides an externally-programmable maximum peak current limit. It also has an adjustable big-side and little-side current-limit and over-current protection capabilities. The NCP1205PG also offers an integrated output voltage feedback to ensure stability and accuracy of the output voltage.The NCP1205PG is ideal for many offline switcher applications where excellent efficiency is desired. It can be used in applications such as nonisolated synchronous buck (or boost) converters, flyback, forward converters, and other popular topologies. It is also suitable for low-cost adapters, chargers, off-line motor drive applications, and battery-powered equipment. In addition, it is highly compatible with many transformer materials and shapes, and can be used in a wide range of output power levels due to its wide range of power available for the output stage.The working principle of the NCP1205PG is based on the current-mode peak current-mode PWM control scheme. This scheme is based on the concept of peak-current limit control in order to provide efficient operation and excellent regulation while maintaining minimum output voltage ripple. The device uses an integrated shield driver to reduce output voltage overshoot during start-up and shut-down. The shield driver also serves to protect the device and the output voltage from overload and over-current situations.The NCP1205PG also incorporates a number of features to enhance its performance and reliability. For example, a quasi-Mode-2 controller is employed that offers quick transient response to sudden load changes and input voltage variations. In addition, an Integrated Desaturation Detection (IDD) circuit is included to detect excessive secondary-side current in critical fault conditions and trigger an appropriate response.In conclusion, the NCP1205PG is a highly integrated PMIC IC ideal for off-line switcher applications. It offers excellent efficiency, precise output voltage control, and protection features to ensure safe and reliable operation. It is widely used in nonisolated synchronous buck (or boost) converters, flyback, forward converters, and other popular topologies. Furthermore, its wide range of power and its compatibility with various transformer shapes make it a suitable option for many power-management applications.
The specific data is subject to PDF, and the above content is for reference
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