UC3845BN
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- Mfr.Part #
- UC3845BN
- Manufacturer
- STMicroelectronics
- Package / Case
- 8-DIP (0.300, 7.62mm)
- Datasheet
- Download
- Description
- IC REG CTRLR BOOST/FLYBACK 8DIP
- Stock
- 7
- In Stock ：
- 7
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- Manufacturer :
- STMicroelectronics
- Product Category :
- DC DC Switching Controllers
- Max Duty Cycle :
- 50 %
- Moisture Sensitivity Level (MSL) :
- 1 (Unlimited)
- Packaging :
- Tube
- Width :
- 6.6mm
- Frequency :
- 250kHz
- Number of Pins :
- 8
- Max Power Dissipation :
- 1.25W
- Input Voltage-Nom :
- 15V
- Lead Free :
- Lead Free
- Rise Time :
- 50ns
- Number of Output Phases :
- 1
- Output Configuration :
- Positive, Isolation Capable
- Nominal Input Voltage :
- 15V
- Switcher Configuration :
- Single
- Analog IC - Other Type :
- SWITCHING CONTROLLER
- Terminal Pitch :
- 2.54mm
- Length :
- 10.92mm
- Max Supply Current :
- 17mA
- Topology :
- Boost, Flyback
- Synchronous Rectifier :
- No
- Factory Lead Time :
- 10 Weeks
- Output Voltage :
- 5V
- REACH SVHC :
- No SVHC
- Duty Cycle (Max) :
- 48%
- Package / Case :
- 8-DIP (0.300, 7.62mm)
- Tolerance :
- 2%
- Voltage - Supply (Vcc/Vdd) :
- 7.6V~30V
- Control Mode :
- CURRENT-MODE
- Control Features :
- Frequency Control
- Control Technique :
- PULSE WIDTH MODULATION
- Lifecycle Status :
- ACTIVE (Last Updated: 7 months ago)
- Terminal Finish :
- Matte Tin (Sn) - annealed
- Fall Time (Typ) :
- 50 ns
- Output Current :
- 200mA
- Frequency - Switching :
- 500kHz
- Height :
- 3.32mm
- Mount :
- Through Hole
- Mounting Type :
- Through Hole
- Base Part Number :
- UC3845
- Number of Terminations :
- 8
- RoHS Status :
- ROHS3 Compliant
- ECCN Code :
- EAR99
- JESD-609 Code :
- e3
- Output Type :
- Transistor Driver
- Function :
- Step-Up/Step-Down
- Operating Temperature :
- -40°C~150°C TJ
- Power Dissipation :
- 1.25W
- Terminal Position :
- Dual
- Datasheets
- UC3845BN
DC DC Switching Controllers STMicroelectronics UC3845BN Overview
The UC3845BN, manufactured by STMicroelectronics, is a robust integrated circuit designed for precise control in boost and flyback converter applications. This DC DC Switching Controller ensures efficient power management and conversion in a compact 8DIP package. Its ability to handle high voltage operations makes it a preferred choice for developing advanced power solutions in industrial settings. The UC3845BN stands out with its built-in features such as pulse-width modulation, error amplifier, and under-voltage lockout, providing a reliable framework for designers aiming to optimize power consumption and enhance system stability. Its versatility and high performance make the UC3845BN ideal for bulk purchasing by businesses focusing on energy-efficient power supply designs.
UC3845BN Features
The UC3845BN is equipped with multiple features that make it suitable for a wide range of power applications. It includes programmable output control, which allows for flexible management of power handling characteristics. The device also supports a wide operating voltage range, enhancing its usability across different electrical standards and conditions. Additional features include thermal shutdown and frequency compensation, which safeguard the device and the overall system against adverse operational conditions, thus ensuring longevity and reliability.
UC3845BN Applications
- Switched Mode Power Supplies (SMPS): Utilizes its PWM capabilities to regulate voltage efficiently, ensuring stable power delivery in power supply units.
- LED Lighting Drivers: Employs current control to provide constant current for LED arrays, enhancing the longevity and color consistency of lighting solutions.
- DC-DC Converters: Converts one DC voltage level to another more efficiently using its boost or flyback topologies, suitable for mobile devices and automotive applications.
- Battery Chargers: Manages power delivery to batteries in consumer electronics, ensuring safe charging cycles and maximizing battery life.
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