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TOP246R
TOP246R is an integrated off-line switcher IC that features an inbuilt 700V power switch.
TOP246R
TOP246R is an integrated off-line switcher IC that features an inbuilt 700V power switch.
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製造商零件號 # : TOP246R
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包裝/封裝: TO-263
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製造商: Power Integrations
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產品分類 : Switching Regulator or Controllers
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TOP246R 數據表
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詳細說明
The TOP246R is a highly integrated switcher IC (integrated circuit) designed for off-line power conversion applications. It incorporates a 700V power MOSFET, PWM control, thermal shutdown, frequency jittering, and an error amplifier with precise internal voltage reference, all into a single IC. This integration allows for a compact and efficient power supply design.The TOP246R operates in conjunction with an external circuitry including a transformer, output diode, output capacitor, and feedback components to regulate the output voltage. It utilizes a pulse width modulation (PWM) control scheme to achieve regulation, which helps in achieving high efficiency and good transient response.Key features of the TOP246R include a wide input voltage range of 85V to 265V, an internal start-up circuit that allows for a fast power supply start-up, and cycle-by-cycle current limit to protect against overloads and short circuits. It also has frequency jittering to reduce EMI emissions and pulse skipping for improved efficiency at light loads.
主要特徵
- Integrated off-line switcher with EcoSmart technology
- Efficient \$ and \text{f} _{sw} = 132 kHz switching frequency
- Integrated 725 VP power MOSFET
- Auto-restart delivers fault tolerance and ease of design for maximum system reliability
- Accurate hysteretic thermal shutdown protection
應用
- Consumer electronics
- Home appliances
- Industrial control systems
- LED lighting
- Power supplies
規格
以下是所選零件的基本參數，涉及零件的特性及其所屬類別。
| Manufacturer | Artesyn | Product Category ! | AC DC Converters, Offline Switchers |
數據表 PDF
數據表記錄了器件的特性、絕對最大額定值、應用等，這對於作為器件特定應用的整體指南大有裨益。
常見問題解答
What is TOP246R?
The TOP246R is a high-performance, offline switcher IC (integrated circuit) designed by Power Integrations. It is widely used in AC-DC power supply applications for consumer electronics, LED lighting, and industrial equipment.
How Does TOP246R Work?
The TOP246R works by integrating a power MOSFET, control circuitry, and protection features into a single package, enabling efficient and compact power supply designs. It utilizes primary-side regulation to achieve accurate output voltage control without the need for an optocoupler or secondary-side feedback circuitry. The device offers high efficiency and comprehensive built-in protections for reliable operation.
How Many Pins does TOP246R have and What are the Functions of the Pinout Configuration?
The TOP246R is available in different packages with varying pin configurations. The 7-pin eSIP package, for example, includes the following pin functions:
- VIN: Input voltage pin.
- GND: Ground pin.
- VOUT: Output voltage pin.
- FB: Feedback pin for regulating the output voltage.
- RTN: Return connection for the control circuitry.
- BP/MOD: Bootstrap or MODulation pin for frequency jittering control.
- SD: Shutdown pin for enabling or disabling the device.
What are the Pros and Cons of TOP246R?
Pros:
- Integration: Combines power MOSFET, control, and protection features in a single device, simplifying design and improving reliability.
- Primary-Side Regulation: Eliminates the need for an optocoupler and secondary-side feedback components, reducing system cost and complexity.
- Efficiency: Offers high efficiency, contributing to energy savings and thermal management in power supplies.
- Comprehensive Protections: Incorporates comprehensive protection features such as overvoltage protection, overcurrent protection, and thermal shutdown.
- Versatility: Available in different package options to suit various application requirements.
Cons:
- External Components: May require additional external components for specific application scenarios or performance enhancements.
- Application Knowledge: Designers need to understand the requirements and considerations for offline power supply designs to utilize the TOP246R effectively.
Are There Any Equivalents/Alternatives to TOP246R for Recommendation?
- The TOP247 series, also from Power Integrations, offers alternatives with similar integrated features for various power levels and package options.
- Other alternatives to the TOP246R include the LNK series from Power Integrations and the FSD series from Fairchild Semiconductor.
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