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TOP243PN

Name: TOP243PN
Rating: 4.7 (12 reviews)

IC OFFLINE SWITCH FLYBACK 8DIP

製造商
製造商。部分 #TOP243PN
包 DIP-8
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規格

Package	Tube
Series	TOPSwitch®-GX
ProductStatus	Not For New Designs
OutputIsolation	Isolated
InternalSwitch(s)	Yes
Voltage-Breakdown	700V
Topology	Flyback
DutyCycle	66.5%
Frequency-Switching	66kHz ~ 132kHz
Power(Watts)	25 W
FaultProtection	Current Limiting, Over Temperature, Over Voltage
ControlFeatures	Frequency Control
OperatingTemperature	-40°C ~ 150°C (TJ)
Package/Case	8-DIP (0.300, 7.62mm), 7 Leads
SupplierDevicePackage	8-PDIP-B

概述

Description

The TOP243PN is a versatile power switch designed for offline power supply applications. It integrates a high-voltage MOSFET and a controller in a single package, enabling efficient power conversion with minimal external components. This device operates as a quasi-resonant flyback converter, allowing for high efficiency and low electromagnetic interference (EMI).
Key features include a wide input voltage range (85 to 265 VAC), adjustable output voltage, and various protections such as overvoltage, overcurrent, and thermal shutdown. The TOP243PN is ideal for applications like AC-DC adapters, industrial power supplies, and LED drivers. It is packaged in a compact DIP-8 configuration, making it suitable for space-constrained designs.
Overall, the TOP243PN offers a cost-effective solution for power management, combining performance, reliability, and ease of use for diverse electronic applications.

Features

The TOP243PN is a power switch integrated circuit designed for off-line power supplies. Key features include:
1. Integrated High-Voltage Power MOSFET: Provides efficient power conversion with low on-resistance.
2. Current Mode Control: Offers improved regulation and stability by controlling the output current.
3. Built-in Protection Features: Includes over-voltage protection (OVP), over-current protection (OCP), and thermal shutdown for enhanced reliability.
4. Start-Up Circuit: Eliminates the need for external components by integrating a high-voltage start-up circuit.
5. Wide Input Voltage Range: Supports a range from 85V to 265V AC, making it suitable for various applications.
6. Low Standby Power Consumption: Designed for energy efficiency, reducing power loss during idle periods.
7. Compact Package: Available in a DIP-8 package, suitable for space-constrained designs.
These features make the TOP243PN ideal for use in power adapters, battery chargers, and other low-power switching applications.

Package

The TOP243PN is packaged in a DIP-8 (Dual In-line Package with 8 pins) configuration. This type of package is commonly used for integrated circuits, allowing for easy insertion into circuit boards.

Pinout

The TOP243PN is a power IC that typically comes in a 7-pin package. Its pins and functions are as follows:
1. DRAIN: This pin connects to the output transformer and is used for switching the output.
2. SOURCE: This pin is connected to the source of the internal MOSFET. It is also connected to the primary side of the transformer.
3. GND: Ground pin for the circuit, providing a common reference voltage.
4. VCC: This pin supplies power to the internal circuitry of the IC. It is connected to the input voltage through a resistor.
5. COMP: Compensation pin for the control loop, used for stability.
6. SENSE: This pin monitors the current for overcurrent protection.
7. TRIM: Used for output voltage adjustment.
The TOP243PN is designed for use in off-line switch-mode power supplies, providing high efficiency and various protection features.

Manufacturer

The TOP243PN is manufactured by Power Integrations, a company known for its innovative power conversion technology. Founded in 1985 and based in San Jose, California, Power Integrations specializes in designing high-performance, energy-efficient power supply solutions. Their products are widely used in various applications, including consumer electronics, industrial equipment, and lighting. The company focuses on developing integrated circuits that enhance power efficiency and reduce energy consumption, aligning with global energy standards and environmental sustainability efforts. Power Integrations is a leader in the field of semiconductor technology, particularly in the realm of power management.

Application

The TOP243PN is a Power Integrations device used primarily in power supply applications. Its key areas include switch-mode power supplies (SMPS) for consumer electronics, LED drivers, battery chargers, and industrial control systems. It is suitable for low to medium power applications, offering features like high efficiency, compact size, and integrated power management functions, making it ideal for embedded systems and renewable energy solutions.

Equivalent

The TOP243PN is a power integrated circuit commonly used for off-line power supply applications. Equivalent products include:
1. TOP232PN
2. TOP242PN
3. TOP244PN
4. LNK304PN
5. LNK305PN
Make sure to check the specifications for compatibility with your specific application, as parameters like output power, voltage, and thermal performance may vary.