KA3843B
- Mfr.Part #
- KA3843B
- Manufacturer
- Fairchild Semiconductor
- Package / Case
- 8-DIP (0.300, 7.62mm)
- Datasheet
- Download
- Description
- IC OFFLINE SWITCH 8DIP
- Stock
- 42,131
- In Stock :
- 42,131
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- Manufacturer :
- Fairchild Semiconductor
- Product Category :
- AC DC Converters, Offline Switches
- Output Configuration :
- Positive
- JESD-609 Code :
- e3
- Operating Temperature :
- 0°C~70°C TA
- Qualification Status :
- COMMERCIAL
- Number of Terminations :
- 14
- RoHS Status :
- ROHS3 Compliant
- Pbfree Code :
- yes
- Output Type :
- Transistor Driver
- Surface Mount :
- yes
- Terminal Position :
- Dual
- Switcher Configuration :
- Single
- Length :
- 8.56mm
- Terminal Form :
- Gull wing
- Moisture Sensitivity Level (MSL) :
- 3 (168 Hours)
- Input Voltage (Max) :
- 30V
- Package / Case :
- 8-DIP (0.300, 7.62mm)
- Clock Sync :
- No
- Packaging :
- Tube
- Pin Count :
- 14
- Duty Cycle (Max) :
- 97%
- Output Current-Max :
- 1A
- Width :
- 3.95mm
- Number of Outputs :
- 1
- Input Voltage-Nom :
- 15V
- Mounting Type :
- Through Hole
- Terminal Finish :
- MATTE TIN
- Synchronous Rectifier :
- yes
- Number of Functions :
- 1
- Control Technique :
- PULSE WIDTH MODULATION
- Control Mode :
- CURRENT-MODE
- Analog IC - Other Type :
- SWITCHING CONTROLLER
- Frequency - Switching :
- Up to 500kHz
- Voltage - Supply (Vcc/Vdd) :
- 7.6V~30V
- Peak Reflow Temperature (Cel) :
- 260
- Datasheets
- KA3843B

AC DC Converters, Offline Switches Fairchild Semiconductor KA3843B Overview
The KA3843B from Fairchild Semiconductor stands as a robust integrated circuit designed for offline switching applications. This pivotal component is encapsulated in an 8-pin DIP package, ensuring it fits seamlessly into various design architectures. Its primary function is to enhance the efficiency and reliability of AC to DC converters, making it indispensable for power management solutions. The KA3843B is crafted to drive innovation and facilitate energy-efficient designs, catering extensively to B2B clients looking for scalability and performance in their electronic products.
KA3843B Features
The KA3843B integrates several key features that enhance its utility in power supply systems. It boasts a wide operating range and stability under varying environmental conditions. The device also supports multiple protection features, including under-voltage lockout and thermal shutdown, which safeguard the system against potential damage. Its high frequency operation reduces the size of passive components, which contributes to a more compact overall design.
KA3843B Applications
- Power Supplies: The KA3843B is used in the development of both consumer and industrial power supplies, offering stability and efficiency in transforming AC to DC power.
- LED Lighting Systems: It drives LED drivers for enhanced performance in lighting solutions, ensuring consistent and reliable power management for extended service life.
- Telecommunication Equipment: Essential for powering telecommunication infrastructures, where reliability and efficiency are paramount for uninterrupted service.
- Battery Chargers: Applies to the design of battery charging systems, optimizing the charging process through efficient power conversion and management.
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