TOP252GN-TL

Product Overview

Category: Integrated Circuits
Use: Power Management IC
Characteristics: High efficiency, low standby power, compact size
Package: TO-220-7L
Essence: Switching Power Supply Controller
Packaging/Quantity: Tape and Reel, 2500 pieces per reel

Specifications

Input Voltage Range: 85VAC to 265VAC
Output Power: Up to 45W
Frequency Range: 50Hz to 60Hz
Operating Temperature Range: -40°C to +125°C
Efficiency: Up to 89%
Standby Power: Less than 100mW

Detailed Pin Configuration

VCC: Power supply input
FB: Feedback pin for voltage regulation
COMP: Compensation pin for stability control
CS: Current sense pin for current limit protection
DRAIN: Switching transistor drain pin
SOURCE: Switching transistor source pin
GND: Ground reference

Functional Features

Primary-side control eliminates the need for optocouplers and secondary-side feedback circuitry
Integrated high-voltage MOSFET enables a compact design
Auto-restart protection feature enhances system reliability
Frequency jittering reduces EMI emissions
Built-in over-temperature protection ensures safe operation

Advantages and Disadvantages

Advantages: - High efficiency leads to energy savings - Compact size allows for space-saving designs - Wide input voltage range accommodates various applications - Integrated features reduce external component count

Disadvantages: - Limited output power compared to higher-rated controllers - Requires careful thermal management due to high operating temperature range

Working Principles

The TOP252GN-TL is a primary-side regulated flyback controller designed for offline power supplies. It operates by regulating the energy transfer between the primary and secondary sides of the transformer. The controller uses a feedback mechanism to adjust the duty cycle of the switching transistor, ensuring stable output voltage regulation.

Detailed Application Field Plans

The TOP252GN-TL is commonly used in various applications, including:

AC-DC power supplies for consumer electronics
LED lighting drivers
Industrial power systems
Home appliances
Battery chargers

Detailed and Complete Alternative Models

TOP250YN: Similar specifications and features, different package (PDIP-8)
TOP253PN: Higher output power capability, similar pin configuration (TO-220-7L)
TOP254EN: Enhanced EMI performance, lower standby power (SOIC-16)

These alternative models offer flexibility in design and cater to specific application requirements.

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Перелічіть 10 типових запитань і відповідей, пов’язаних із застосуванням TOP252GN-TL у технічних рішеннях

Sure! Here are 10 common questions and answers related to the application of TOP252GN-TL in technical solutions:

Q: What is TOP252GN-TL? A: TOP252GN-TL is a high-performance integrated switcher IC (integrated circuit) designed for offline power supplies.
Q: What are the key features of TOP252GN-TL? A: The key features of TOP252GN-TL include wide input voltage range, high efficiency, low standby power consumption, and built-in protection features.
Q: What is the typical application of TOP252GN-TL? A: TOP252GN-TL is commonly used in various applications such as AC/DC power supplies, LED lighting, industrial controls, and consumer electronics.
Q: What is the maximum output power that TOP252GN-TL can handle? A: TOP252GN-TL can handle output power up to 100 watts depending on the design and external components used.
Q: How does TOP252GN-TL achieve high efficiency? A: TOP252GN-TL achieves high efficiency through its advanced control algorithms, low-loss MOSFET technology, and optimized design for minimizing power dissipation.
Q: Does TOP252GN-TL have built-in protection features? A: Yes, TOP252GN-TL has built-in protection features such as overvoltage protection, overcurrent protection, and thermal shutdown to ensure safe operation.
Q: Can TOP252GN-TL operate with both low and high input voltages? A: Yes, TOP252GN-TL has a wide input voltage range from 85VAC to 265VAC, making it suitable for both low and high voltage applications.
Q: Is TOP252GN-TL suitable for universal input power supplies? A: Yes, TOP252GN-TL is designed to meet the requirements of universal input power supplies, making it suitable for worldwide applications.
Q: Can TOP252GN-TL be used in dimmable LED lighting applications? A: Yes, TOP252GN-TL can be used in dimmable LED lighting applications by integrating external components for dimming control.
Q: Are there any reference designs or application notes available for TOP252GN-TL? A: Yes, the manufacturer provides reference designs and application notes that can help in implementing TOP252GN-TL in various technical solutions.

Please note that the answers provided here are general and may vary depending on specific design considerations and requirements. It is always recommended to refer to the datasheet and application notes provided by the manufacturer for detailed information.