UC3845NG
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- Mfr.Part #
- UC3845NG
- Manufacturer
- onsemi
- Package / Case
- 8-DIP (0.300, 7.62mm)
- Datasheet
- Download
- Description
- IC REG CTRLR BOOST/FLYBACK 8DIP
- Stock
- 3,308
- In Stock ：
- 3,308
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- Manufacturer :
- onsemi
- Product Category :
- DC DC Switching Controllers
- Lead Free :
- Lead Free
- Fall Time (Typ) :
- 50 ns
- Pbfree Code :
- yes
- Rise Time :
- 50ns
- Thickness :
- 3.9mm
- Output Configuration :
- Positive, Isolation Capable
- Topology :
- Buck, Boost, Flyback, Forward Converter
- Number of Pins :
- 8
- Control Features :
- Frequency Control
- Number of Outputs :
- 1
- Input Voltage-Nom :
- 15V
- Voltage - Supply (Vcc/Vdd) :
- 12V~28V
- Terminal Position :
- Dual
- Function :
- Step-Up, Step-Down, Step-Up/Step-Down
- Moisture Sensitivity Level (MSL) :
- 1 (Unlimited)
- Control Mode :
- CURRENT-MODE
- Terminal Finish :
- Nickel/Palladium/Gold (Ni/Pd/Au)
- Max Duty Cycle :
- 50 %
- Packaging :
- Tube
- Synchronous Rectifier :
- No
- Analog IC - Other Type :
- SWITCHING CONTROLLER
- Control Technique :
- PULSE WIDTH MODULATION
- Frequency - Switching :
- 500kHz
- Base Part Number :
- UC3845
- Factory Lead Time :
- 6 Weeks
- RoHS Status :
- ROHS3 Compliant
- Duty Cycle (Max) :
- 48%
- Mounting Type :
- Through Hole
- Output Type :
- Transistor Driver
- Operating Temperature :
- 0°C~70°C TA
- Height :
- 5.08mm
- Package / Case :
- 8-DIP (0.300, 7.62mm)
- Length :
- 9.81mm
- ECCN Code :
- EAR99
- JESD-609 Code :
- e4
- Output Voltage :
- 5.1V
- Surface Mount :
- No
- Supply Current-Max (Isup) :
- 25mA
- REACH SVHC :
- No SVHC
- Lifecycle Status :
- ACTIVE (Last Updated: 4 days ago)
- Output Current :
- 200mA
- Terminal Pitch :
- 2.54mm
- Width :
- 6.35mm
- Frequency :
- 450kHz
- Switcher Configuration :
- Buck-Boost
- Number of Terminations :
- 8
- Input Current :
- 11mA
- Weight :
- 528.605208mg
- Nominal Input Voltage :
- 25V
- Power Dissipation :
- 1W
- Datasheets
- UC3845NG
DC DC Switching Controllers onsemi UC3845NG Overview
The UC3845NG by onsemi stands as a pivotal component in the realm of DC DC Switching Controllers, tailored for managing boost or flyback topologies. This 8-pin DIP (Dual In-line Package) regulator controller is meticulously designed to deliver precision voltage regulation, enhanced power efficiency, and robust operation across various applications. With its integrated features like under-voltage lockout, a high current totem-pole output able to drive a power MOSFET, and automatic feed-forward compensation, the DC DC Switching Controllers onsemi UC3845NG ensures reliable performance even under challenging conditions. This makes it an ideal choice for designers looking to optimize power solutions in space-constrained environments.
UC3845NG Features
- High-frequency operation up to 500 kHz, which allows smaller sized filter components, reducing overall design footprint.
- Pulse-by-pulse current limiting integrated within the device provides enhanced protection against short circuits and overloads.
- Adjustable output control facilitates flexible tuning of performance to match specific application needs.
- Built-in error amplifier and line compensation feature ensure stable operation and improved regulation.
UC3845NG Applications
- Power Supplies: Utilized in the development of both isolated and non-isolated power supply designs, ensuring efficient power conversion and reliability.
- LED Lighting: Drives LED drivers for consistent, flicker-free illumination in commercial and residential settings.
- Telecommunications: Employed in telecom power systems to deliver stable and dependable power required for seamless communication infrastructure.
- Battery Chargers: Optimizes charging algorithms to enhance battery performance and longevity in portable devices.
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