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TOP233YN
+NomenclatureIC OFFLINE SW FLYBACK TO220-7B
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FabricantBaulint
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Pièce fabricant #TOP233YN
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En stock5844
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Spécifications
| Attribut | Valeur |
| Series | TOPSwitch®-FX |
| Part Status | Obsolete |
| Base Product Number | TOP233 |
| Output Isolation | Isolated |
| Internal Switch(s) | Yes |
| Voltage - Breakdown | 700V |
| Topology | Flyback |
| Duty Cycle | 78% |
| Frequency - Switching | 66kHz ~ 132kHz |
| Power (Watts) | 50 W |
| Fault Protection | Current Limiting, Over Temperature, Over Voltage |
| Control Features | Frequency Control |
| Operating Temperature | -40°C ~ 150°C (TJ) |
| Package / Case | TO-220-7 Formed Leads, 5 Leads |
| Supplier Device Package | TO-220-7B |
| Mounting Type | Through Hole |
| Packaging | Tube |
Présentation
Description
Key features include a wide input voltage range, line-compensated thermal shutdown, and frequency jittering to reduce electromagnetic interference (EMI). It also provides protection features such as over-voltage, over-current, and over-temperature protection, ensuring safe operation under various conditions.
The TOP233YN is often used in applications requiring compact, cost-effective power solutions with good performance. Its design simplifies the power supply architecture by reducing the need for external components, thereby minimizing both system cost and board space. Overall, the TOP233YN is a versatile and efficient choice for medium to low power supply designs.
Equivalent
Features
1. High Efficiency: The device offers high-efficiency power conversion, which helps in reducing energy consumption.
2. Integrated Functions: It combines power MOSFET, PWM controller, fault protection, and other control circuitry in a single package, minimizing the number of external components needed.
3. Overload Protection: It includes built-in protection features like overcurrent, overtemperature, and overvoltage protection, enhancing system reliability.
4. Heat Management: The package is designed for efficient heat dissipation, which is crucial for maintaining performance in compact designs.
5. Design Flexibility: The TOP233YN supports multiple topologies (e.g., flyback), making it suitable for various applications such as adapters, chargers, and auxiliary power supplies.
6. Ease of Use: Simplifies the design and manufacturing process, reducing overall costs and time to market.
These features make the TOP233YN a versatile and efficient choice for power supply designers.
Pinout
The pin functions are as follows:
1. SOURCE (Pin 1): This pin serves as the power switch source connection internally and is used as a ground reference for the control circuitry.
2. CONTROL (Pin 2): This pin is responsible for multiple functions, including the regulation of output voltage, controlling the duty cycle, and providing feedback for the switching operation of the IC. It is also used for programming the current limit and achieving improved efficiency through frequency jittering.
3. DRAIN (Pin 3): This pin connects to the switching MOSFET's drain and is used for energy transfer to the primary winding of the transformer. It handles the primary current and high voltages during operation.
These pin configurations allow the TOP233YN to function effectively in converting AC to DC power in various electronic devices.
Manufacturer
Application
1. Consumer Electronics: Power adapters and chargers for devices like smartphones, tablets, and laptops.
2. Home Appliances: Power supplies for televisions, set-top boxes, and other small appliances.
3. Industrial Equipment: Auxiliary power supplies in larger systems that need efficient standby modes.
4. LED Drivers: Providing power supply solutions for LED lighting systems.
5. Networking Devices: Powering routers, modems, and other communication equipment.
These applications benefit from the device's ability to deliver high efficiency, reduced heat generation, and compact design.
Package
Frequently Asked Questions
Q: Can the TOP233YN be used for a 50W flyback power supply design?
A: Yes, it is rated for 50W in flyback topology with 700V breakdown voltage and integrated switches.
Q: What is the switching frequency range of the TOP233YN?
A: It operates at a variable frequency between 66kHz and 132kHz, adjusting automatically for efficiency.
Q: Does the TOP233YN support output isolation?
A: Yes, it is designed for isolated flyback converters, meeting safety isolation requirements.
Q: What fault protections are integrated in the TOP233YN?
A: It includes current limiting, over temperature, and over voltage protections for robust operation.
Q: What is the maximum duty cycle of the TOP233YN?
A: The maximum duty cycle is 78%, typical for TOPSwitch-FX series in flyback designs.
Q: What is the recommended package for the TOP233YN?
A: It comes in a TO-220-7B (5 leads formed) through-hole package, suitable for easy PCB mounting.