UC3843BVD
- Mfr.Part #
- UC3843BVD
- Manufacturer
- onsemi
- Package / Case
- 14-SOIC (0.154, 3.90mm Width)
- Datasheet
- Download
- Description
- IC REG CTRLR FLYBACK 14SOIC
- Stock
- 23,405
- In Stock :
- 23,405
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- Manufacturer :
- onsemi
- Product Category :
- DC DC Switching Controllers
- Control Mode :
- CURRENT-MODE
- Duty Cycle (Max) :
- 96%
- Moisture Sensitivity Level (MSL) :
- 1 (Unlimited)
- Package / Case :
- 14-SOIC (0.154, 3.90mm Width)
- Number of Terminations :
- 8
- Output Type :
- Transistor Driver
- Number of Outputs :
- 1
- Mounting Type :
- Surface Mount
- Terminal Finish :
- MATTE TIN
- Time@Peak Reflow Temperature-Max (s) :
- 40
- Output Configuration :
- Positive
- Width :
- 3.9mm
- JESD-30 Code :
- R-PDSO-G8
- Packaging :
- Tube
- Analog IC - Other Type :
- SWITCHING CONTROLLER
- Pbfree Code :
- yes
- Output Current-Max :
- 1A
- Operating Temperature :
- -40°C~105°C TA
- Switcher Configuration :
- Single
- Function :
- Step-Up, Step-Up/Step-Down
- Control Technique :
- PULSE WIDTH MODULATION
- JESD-609 Code :
- e3
- Input Voltage (Max) :
- 25V
- RoHS Status :
- Non-RoHS Compliant
- Terminal Form :
- Gull wing
- Voltage - Supply (Vcc/Vdd) :
- 7.6V~30V
- Surface Mount :
- yes
- Topology :
- Boost, Flyback
- Terminal Position :
- Dual
- Qualification Status :
- COMMERCIAL
- Peak Reflow Temperature (Cel) :
- 260
- Frequency - Switching :
- Up to 500kHz
- Length :
- 4.9mm
- Control Features :
- Frequency Control
- Synchronous Rectifier :
- No
- Input Voltage-Nom :
- 15V
- Datasheets
- UC3843BVD

DC DC Switching Controllers onsemi UC3843BVD Overview
The UC3843BVD from onsemi is a sophisticated DC DC switching controller specifically designed for managing flyback converters. This component is integral in enhancing efficiency and reliability in power supply systems. Built on a robust technology platform, the UC3843BVD offers precise voltage regulation and is equipped with a high-performance pulse width modulation (PWM) circuit. This makes it an ideal choice for developers looking to achieve stable and efficient power conversion in their applications. Incorporating the key features of DC DC Switching Controllers onsemi UC3843BVD ensures optimal performance in demanding environments, making it a preferred component for bulk purchases by B2B customers seeking reliability and longevity in power management solutions.
UC3843BVD Features
The UC3843BVD boasts several features that make it stand out as a superior choice for power control applications. These include high-frequency operation up to 500 kHz, which allows for smaller-sized components in the power supply design, reducing overall system size and cost. It also features a current-mode control which provides improved transient response and simplified loop compensation. Moreover, the device includes under-voltage lockout for enhanced safety and reliability, as well as automatic feed-forward compensation, making it highly adaptable to varying input voltages.
UC3843BVD Applications
- Power Supplies for Consumer Electronics: Utilized in designing compact and efficient adapters and chargers for devices like laptops and smartphones, where stable power delivery is critical.
- LED Drivers: Capable of driving LED lighting solutions by providing consistent, stable output for various lighting applications, ensuring optimal efficiency and longevity of the lighting components.
- Telecommunication Equipment: Employs in the power supply units of telecommunication infrastructure, where reliable and robust power management is necessary to maintain continuous operation.
- Battery Chargers: Used in developing advanced charging solutions that require precise control of the power to efficiently charge batteries while extending their life cycle.
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