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
- Lifecycle Status :
- ACTIVE (Last Updated: 4 days ago)
- Control Technique :
- PULSE WIDTH MODULATION
- Thickness :
- 3.9mm
- Lead Free :
- Lead Free
- Switcher Configuration :
- Buck-Boost
- Analog IC - Other Type :
- SWITCHING CONTROLLER
- Width :
- 6.35mm
- Pbfree Code :
- yes
- Factory Lead Time :
- 6 Weeks
- Packaging :
- Tube
- Voltage - Supply (Vcc/Vdd) :
- 12V~28V
- ECCN Code :
- EAR99
- Max Duty Cycle :
- 50 %
- Frequency - Switching :
- 500kHz
- Synchronous Rectifier :
- No
- Function :
- Step-Up, Step-Down, Step-Up/Step-Down
- Input Voltage-Nom :
- 15V
- Topology :
- Buck, Boost, Flyback, Forward Converter
- Package / Case :
- 8-DIP (0.300, 7.62mm)
- Nominal Input Voltage :
- 25V
- Output Current :
- 200mA
- Input Current :
- 11mA
- RoHS Status :
- ROHS3 Compliant
- Terminal Pitch :
- 2.54mm
- Rise Time :
- 50ns
- Base Part Number :
- UC3845
- Output Configuration :
- Positive, Isolation Capable
- Surface Mount :
- No
- Control Mode :
- CURRENT-MODE
- Output Voltage :
- 5.1V
- Power Dissipation :
- 1W
- Operating Temperature :
- 0°C~70°C TA
- Weight :
- 528.605208mg
- Fall Time (Typ) :
- 50 ns
- Number of Outputs :
- 1
- Length :
- 9.81mm
- Duty Cycle (Max) :
- 48%
- Control Features :
- Frequency Control
- Output Type :
- Transistor Driver
- JESD-609 Code :
- e4
- Terminal Position :
- Dual
- Moisture Sensitivity Level (MSL) :
- 1 (Unlimited)
- Height :
- 5.08mm
- Mounting Type :
- Through Hole
- Supply Current-Max (Isup) :
- 25mA
- Number of Pins :
- 8
- Terminal Finish :
- Nickel/Palladium/Gold (Ni/Pd/Au)
- REACH SVHC :
- No SVHC
- Number of Terminations :
- 8
- Frequency :
- 450kHz
- 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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