KA3844B
- Mfr.Part #
- KA3844B
- Manufacturer
- Fairchild Semiconductor
- Package / Case
- 8-DIP (0.300, 7.62mm)
- Datasheet
- Download
- Description
- IC OFFLINE SWITCH 8DIP
- Stock
- 122
- In Stock :
- 122
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- Manufacturer :
- Fairchild Semiconductor
- Product Category :
- AC DC Converters, Offline Switches
- Output Current :
- 1A
- Length :
- 10.15mm
- Height :
- 3.3mm
- Voltage - Start Up :
- 16V
- JESD-609 Code :
- e3
- Base Part Number :
- KA3844
- RoHS Status :
- ROHS3 Compliant
- Package / Case :
- 8-DIP (0.300, 7.62mm)
- Number of Outputs :
- 1
- ECCN Code :
- EAR99
- Voltage - Supply (Vcc/Vdd) :
- 10V~30V
- Internal Switch(s) :
- No
- Number of Terminations :
- 8
- Lead Free :
- Lead Free
- Input Voltage (Max) :
- 30V
- Switcher Configuration :
- Single
- Number of Functions :
- 1
- Control Technique :
- PULSE WIDTH MODULATION
- Max Supply Current :
- 17mA
- Terminal Pitch :
- 2.54mm
- Control Features :
- Frequency Control
- Published :
- 2015
- Weight :
- 851mg
- Fall Time (Typ) :
- 35 ns
- Frequency - Switching :
- Up to 500kHz
- Width :
- 6.35mm
- Operating Supply Current :
- 17mA
- Duty Cycle :
- 48%
- Terminal Position :
- Dual
- Number of Pins :
- 8
- Operating Temperature :
- 0°C~70°C TA
- Control Mode :
- CURRENT-MODE
- Mount :
- Through Hole
- Packaging :
- Tube
- Analog IC - Other Type :
- SWITCHING CONTROLLER
- Pbfree Code :
- yes
- Moisture Sensitivity Level (MSL) :
- 1 (Unlimited)
- Rise Time :
- 45ns
- Lifecycle Status :
- LIFETIME (Last Updated: 1 day ago)
- Mounting Type :
- Through Hole
- Factory Lead Time :
- 2 Weeks
- Terminal Finish :
- Tin (Sn)
- Max Duty Cycle :
- 50 %
- Input Voltage-Nom :
- 15V
- Datasheets
- KA3844B

AC DC Converters, Offline Switches Fairchild Semiconductor KA3844B Overview
The KA3844B, an Offline Switch from Fairchild Semiconductor, is a pivotal component designed for robust AC DC converter applications. This integrated circuit (IC) ensures efficient, reliable switching capabilities within a compact 8DIP package. Its design is tailored for high-performance power management tasks, making it an essential choice for developers looking to enhance system stability and extend the operational lifespan of their electronic devices. The KA3844B excels in providing a balance between performance and cost-effectiveness, making it a preferred choice for businesses looking to buy in bulk.
KA3844B Features
The KA3844B IC includes multiple features designed to improve system efficiency and reliability. Key features include undervoltage lockout for safe operation, programmable frequency oscillation for versatile application, and high-current totem pole output capable of driving capacitors and transformers directly. Additionally, it offers thermal shutdown capability to protect against overheating and potential damage, enhancing the IC’s durability and reliability in challenging conditions.
KA3844B Applications
- Power Supplies: The KA3844B is widely used in designing switch-mode power supplies (SMPS) where it facilitates efficient power conversion and regulation, maintaining stable voltage levels across varying load conditions.
- Battery Chargers: This IC manages and controls the charging process, ensuring safe and efficient battery charging by regulating the power flow and preventing overcharging, thus extending battery life.
- LED Lighting Systems: In LED applications, the KA3844B helps in driving LED arrays, providing consistent current that enhances the performance and longevity of LED installations.
- Consumer Electronics: Employed in various consumer electronics such as televisions and computer monitors, the KA3844B helps in the power supply section, ensuring devices operate efficiently under different electrical loads.
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