UC3844N
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- Mfr.Part #
- UC3844N
- Manufacturer
- onsemi
- Package / Case
- 8-DIP (0.300, 7.62mm)
- Datasheet
- Download
- Description
- IC REG CTRLR PWM CM 8-DIP
- Stock
- 7,199
- In Stock ：
- 7,199
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- Manufacturer :
- onsemi
- Product Category :
- DC DC Switching Controllers
- Output Type :
- Transistor Driver
- Topology :
- Boost, Buck, Buck-Boost, Flyback, Forward
- Base Part Number :
- UC3844
- ECCN Code :
- EAR99
- Analog IC - Other Type :
- SWITCHING CONTROLLER
- Factory Lead Time :
- 6 Weeks
- Output Current :
- 1A
- Moisture Sensitivity Level (MSL) :
- 1 (Unlimited)
- Lead Free :
- Lead Free
- Width :
- 6.35mm
- Control Technique :
- PULSE WIDTH MODULATION
- Supply Current-Max (Isup) :
- 25mA
- Package / Case :
- 8-DIP (0.300, 7.62mm)
- Number of Pins :
- 8
- Mount :
- DIP
- Frequency :
- 450kHz
- Voltage - Supply (Vcc/Vdd) :
- 12V~28V
- Nominal Input Voltage :
- 25V
- Input Voltage-Nom :
- 15V
- Synchronous Rectifier :
- No
- Operating Temperature :
- 0°C~70°C TA
- Output Configuration :
- Positive
- JESD-609 Code :
- e4
- Max Duty Cycle :
- 50 %
- Length :
- 9.81mm
- Terminal Pitch :
- 2.54mm
- Weight :
- 528.605208mg
- Power Dissipation :
- 1W
- Pbfree Code :
- yes
- Function :
- Step-Up, Step-Down, Step-Up/Step-Down
- Control Mode :
- CURRENT-MODE
- Frequency - Switching :
- Up to 500kHz
- Terminal Finish :
- Nickel/Palladium/Gold (Ni/Pd/Au)
- REACH SVHC :
- No SVHC
- Terminal Position :
- Dual
- Mounting Type :
- Through Hole
- Duty Cycle (Max) :
- 48%
- Output Voltage :
- 13.5V
- Thickness :
- 3.9mm
- Control Features :
- Frequency Control
- Quiescent Current :
- 11mA
- Number of Outputs :
- 1
- Number of Terminations :
- 8
- Lifecycle Status :
- ACTIVE (Last Updated: 1 day ago)
- Height :
- 5.08mm
- RoHS Status :
- ROHS3 Compliant
- Rise Time :
- 50ns
- Packaging :
- Tube
- Input Current :
- 11mA
- Fall Time (Typ) :
- 50 ns
- Datasheets
- UC3844N
DC DC Switching Controllers onsemi UC3844N Overview
The UC3844N by onsemi stands as a pivotal component in the realm of DC-DC switching controllers. This PWM (Pulse Width Modulation) control IC is engineered to deliver superior performance in demanding applications, thanks to its robust design and advanced features. The UC3844N is housed in an 8DIP package, making it ideal for integration into a variety of electronic systems. Its primary function is to manage and control the power conversion process, ensuring efficient operation, enhanced power saving, and improved overall system reliability. The DC DC Switching Controllers onsemi UC3844N is crucial for developers looking to optimize their power management solutions.
UC3844N Features
The UC3844N offers several features that make it a top choice for power management applications. It includes a programmable switching frequency up to 500 kHz, which allows for flexible design options. Moreover, it features a high current totem pole output which is capable of directly driving a power MOSFET. Additionally, its built-in voltage feedback input, current sensing comparator, and automatic pulse-by-pulse current limiting enhance both the safety and efficiency of the power supply design. Lastly, its low startup current (typically 0.5 mA) makes it an energy-efficient choice.
UC3844N Applications
- Switch Mode Power Supplies (SMPS): The UC3844N is adept at controlling switch mode power supplies by regulating the output voltage and current, ensuring stable operation across a range of input voltages and load conditions.
- DC-DC Converters: In DC-DC converter applications, this IC helps in stepping up or stepping down voltage efficiently, which is crucial for battery-operated devices needing consistent voltage levels.
- Power Inverters: Utilized in power inverters, the UC3844N controls the transformation of DC to AC power, ideal for renewable energy systems such as solar or wind power installations.
- Battery Chargers: Its precision control makes the UC3844N suitable for battery charging applications, ensuring the battery is charged quickly and safely without overcharging.
- LED Lighting Systems: It also finds applications in LED lighting systems, where it helps in managing the power supply to ensure long life and reliability of the LEDs.
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