UC3845N
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- Mfr.Part #
- UC3845N
- Manufacturer
- Texas Instruments
- Package / Case
- 8-DIP (0.300, 7.62mm)
- Datasheet
- Download
- Description
- IC REG CTRLR MULT TOPOLOGY 8DIP
- Stock
- 1
- In Stock ：
- 1
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- Manufacturer :
- Texas Instruments
- Product Category :
- DC DC Switching Controllers
- Moisture Sensitivity Level (MSL) :
- 1 (Unlimited)
- Supply Current-Max (Isup) :
- 25mA
- RoHS Status :
- ROHS3 Compliant
- Packaging :
- Tube
- Control Mode :
- CURRENT-MODE
- Topology :
- Buck, Boost, Flyback, Forward Converter
- Duty Cycle (Max) :
- 48%
- REACH SVHC :
- No SVHC
- Operating Temperature :
- 0°C~70°C TA
- Switcher Configuration :
- Buck-Boost
- Length :
- 9.81mm
- Rise Time :
- 50ns
- Power Dissipation :
- 1W
- Lifecycle Status :
- ACTIVE (Last Updated: 2 days ago)
- JESD-609 Code :
- e4
- Nominal Input Voltage :
- 25V
- Max Duty Cycle :
- 50 %
- Input Voltage-Nom :
- 15V
- Quiescent Current :
- 11mA
- Height :
- 5.08mm
- Terminal Position :
- Dual
- Width :
- 6.35mm
- Output Current :
- 1A
- Output Voltage :
- 13.5V
- Output Configuration :
- Positive, Isolation Capable
- Fall Time (Typ) :
- 50 ns
- Package / Case :
- 8-DIP (0.300, 7.62mm)
- Frequency :
- 450kHz
- Weight :
- 528.605208mg
- Thickness :
- 3.9mm
- Terminal Pitch :
- 2.54mm
- Control Features :
- Frequency Control
- Frequency - Switching :
- 500kHz
- Mounting Type :
- Through Hole
- Output Type :
- Transistor Driver
- Synchronous Rectifier :
- No
- Lead Free :
- Lead Free
- Base Part Number :
- UC3845
- Function :
- Step-Up, Step-Down, Step-Up/Step-Down
- Voltage - Supply (Vcc/Vdd) :
- 12V~28V
- Number of Terminations :
- 8
- ECCN Code :
- EAR99
- Number of Pins :
- 8
- Number of Outputs :
- 1
- Surface Mount :
- No
- Pbfree Code :
- yes
- Analog IC - Other Type :
- SWITCHING CONTROLLER
- Control Technique :
- PULSE WIDTH MODULATION
- Factory Lead Time :
- 6 Weeks
- Terminal Finish :
- Nickel/Palladium/Gold (Ni/Pd/Au)
- Input Current :
- 11mA
- Datasheets
- UC3845N
DC DC Switching Controllers Texas Instruments UC3845N Overview
The UC3845N by Texas Instruments is a high-performance DC DC switching controller designed for a broad range of power supply applications. This device integrates features that are essential for building flexible and robust switching power supplies, enhancing efficiency and reliability. With its capability to handle multiple topologies such as boost, buck, flyback, and forward converters, the UC3845N stands out as a versatile component in advanced power management solutions. Employing a built-in oscillator, error amplifier, and a high-current totem pole output, the UC3845N offers precise control over power supply performance, making it an indispensable part of modern electronic systems.
UC3845N Features
The UC3845N is equipped with several key features that enhance its functionality and reliability in power control applications. These include a programmable switching frequency up to 500 kHz, a 1A peak current capability, and an adjustable 5% duty cycle. It also boasts built-in under-voltage lockout and current limiting functionalities, ensuring safe operation under various conditions. Moreover, its high-performance characteristics make it suitable for high-density power applications, providing efficient power conversion and heat management.
UC3845N Applications
- Power Supplies for Consumer Electronics: Utilizes UC3845N in buck or boost converter configurations to efficiently manage power in devices such as TVs, gaming consoles, and home appliances.
- LED Drivers: Applies the UC3845N in flyback topology to deliver stable and efficient current for LED lighting systems, enhancing longevity and luminosity.
- Telecommunication Equipment: Employs UC3845N in forward converter topology to ensure reliable and efficient power supply solutions for routers, switches, and other networking hardware.
- Battery Chargers: Makes use of the UC3845N's ability to control charging cycles in applications requiring precise battery management, such as smartphones and laptops.
- Industrial Systems: Leverages UC3845N's robust design in harsh industrial environments for equipment like automation controllers and industrial PCs that demand reliable power management.
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