TOP243FN
- Mfr.Part #
- TOP243FN
- Manufacturer
- Power Integrations
- Package / Case
- TO-262-7 (Formed Leads), 6 Leads
- Datasheet
- Download
- Description
- IC OFFLINE SW FLYBACK TO262-7C
- Stock
- 11,443
- In Stock :
- 11,443
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- Manufacturer :
- Power Integrations
- Product Category :
- AC DC Converters, Offline Switches
- Terminal Position :
- Zig-Zag
- Lead Free :
- Lead Free
- Control Features :
- Frequency Control
- Output Voltage :
- 12V
- Min Supply Voltage (AC) :
- 85V
- Mount :
- Through Hole
- Mounting Type :
- Through Hole
- Operating Temperature :
- -40°C~150°C TJ
- Pin Count :
- 3
- Pbfree Code :
- yes
- Switcher Configuration :
- Single
- Max Power Dissipation :
- 45W
- Radiation Hardening :
- No
- Height Seated (Max) :
- 15.1mm
- Control Technique :
- PULSE WIDTH MODULATION
- Control Mode :
- VOLTAGE-MODE
- Internal Switch(s) :
- yes
- Length :
- 10.29mm
- Fault Protection :
- Current Limiting, Over Temperature, Over Voltage
- Output Isolation :
- Isolated
- Factory Lead Time :
- 6 Weeks
- Number of Functions :
- 1
- Frequency - Switching :
- 66kHz~132kHz
- Published :
- 2005
- Packaging :
- Tube
- HTS Code :
- 8542.39.00.01
- JESD-30 Code :
- R-PZIP-T6
- Max Supply Voltage (AC) :
- 265V
- JESD-609 Code :
- e3
- Nominal Supply Current :
- 1.6mA
- Output Current-Max :
- 1.44A
- Duty Cycle :
- 66.5%
- Terminal Pitch :
- 1.27mm
- Number of Terminations :
- 6
- Width :
- 4.435mm
- Topology :
- Flyback
- Series :
- TOPSwitch®-GX
- ECCN Code :
- EAR99
- Moisture Sensitivity Level (MSL) :
- 1 (Unlimited)
- Max Duty Cycle :
- 83 %
- Package / Case :
- TO-262-7 (Formed Leads), 6 Leads
- Terminal Finish :
- PURE MATTE TIN
- Analog IC - Other Type :
- SWITCHING REGULATOR
- RoHS Status :
- RoHS Compliant
- Voltage - Breakdown :
- 700V
- Datasheets
- TOP243FN

AC DC Converters, Offline Switches Power Integrations TOP243FN Overview
The Power Integrations TOP243FN, a highly reliable and efficient solution from the esteemed AC DC Converters, Offline Switches category, is engineered to enhance power supply design with its sophisticated integrated circuit technology. Designed for compact offline switch flyback power supplies, this IC simplifies the design and reduces the component count while ensuring robust performance. The TOP243FN incorporates Power Integrations' innovative EcoSmart™ technology, which drastically reduces energy consumption in both standby and active modes, making it an ideal choice for environmentally conscious applications seeking to minimize power usage without sacrificing output efficacy.
TOP243FN Features
This high-performance integrated circuit boasts a range of features that cater to demanding power management needs. The TOP243FN offers extended power handling capabilities with its ability to handle up to 65 watts, an internal start-up switch, and auto-restart for short-circuit and overload protection. Its integrated PWM controller significantly improves reliability and accuracy in power supplies, reducing external component dependency. The device’s multi-mode operation ensures efficiency across a wide range of load conditions, making it versatile and practical for various electronic applications.
TOP243FN Applications
- Consumer Electronics: Utilized in TVs, audio/video equipment, and game consoles, where efficient power conversion is necessary for compact power supplies with minimal heat generation.
- Office Equipment: Essential in devices such as printers, scanners, and fax machines, facilitating stable and reliable power management for better device functionality and energy efficiency.
- Industrial Systems: Deployed in automated service equipment and control systems, where robust and reliable power supply solutions are critical for consistent operation and long-term durability.
- Telecommunication Devices: Supports the power needs of networking hardware like routers and switches, ensuring efficient operation through advanced energy management features.
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