UC3843BD1
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- Mfr.Part #
- UC3843BD1
- Manufacturer
- onsemi
- Package / Case
- 8-SOIC (0.154, 3.90mm Width)
- Datasheet
- Download
- Description
- IC REG CTRLR FLYBACK 8SOIC
- Stock
- 16,847
- In Stock ：
- 16,847
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- Manufacturer :
- onsemi
- Product Category :
- DC DC Switching Controllers
- Input Bias Current :
- -2μA
- Rise Time :
- 50ns
- REACH SVHC :
- No SVHC
- Voltage - Supply (Vcc/Vdd) :
- 7.6V~30V
- Terminal Position :
- Dual
- Control Technique :
- PULSE WIDTH MODULATION
- Control Features :
- Frequency Control
- Control Mode :
- CURRENT-MODE
- Input Voltage (Max) :
- 25V
- Factory Lead Time :
- 2 Weeks
- Frequency :
- 52kHz
- ECCN Code :
- EAR99
- Analog IC - Other Type :
- SWITCHING CONTROLLER
- Input Voltage-Nom :
- 15V
- Max Supply Current :
- 17mA
- Time@Peak Reflow Temperature-Max (s) :
- 40
- Moisture Sensitivity Level (MSL) :
- 1 (Unlimited)
- Frequency - Switching :
- Up to 500kHz
- Function :
- Step-Up, Step-Up/Step-Down
- Lifecycle Status :
- ACTIVE (Last Updated: 3 days ago)
- Switcher Configuration :
- Single
- Output Type :
- Transistor Driver
- Synchronous Rectifier :
- No
- Power Dissipation :
- 702mW
- Length :
- 5mm
- Base Part Number :
- UC384*B
- Width :
- 4mm
- Number of Terminations :
- 8
- Peak Reflow Temperature (Cel) :
- 260
- Topology :
- Boost, Flyback
- Package / Case :
- 8-SOIC (0.154, 3.90mm Width)
- Max Duty Cycle :
- 96 %
- Output Configuration :
- Positive
- Operating Temperature :
- 0°C~70°C TA
- Max Power Dissipation :
- 702mW
- JESD-609 Code :
- e3
- Output Current :
- 200mA
- Mount :
- Surface Mount
- Number of Outputs :
- 1
- Lead Free :
- Lead Free
- Mounting Type :
- Surface Mount
- RoHS Status :
- ROHS3 Compliant
- Published :
- 1999
- Halogen Free :
- Halogen Free
- Fall Time (Typ) :
- 50 ns
- Terminal Finish :
- Tin (Sn)
- Height :
- 1.5mm
- Packaging :
- Tube
- Terminal Form :
- Gull wing
- Number of Pins :
- 8
- Output Voltage :
- 13.4V
- Pbfree Code :
- yes
- Datasheets
- UC3843BD1
DC DC Switching Controllers onsemi UC3843BD1 Overview
The UC3843BD1 from onsemi is a highly efficient DC DC Switching Controller, designed for robust flyback control in a variety of applications. This component is integral for managing and controlling DC to DC switching converters, particularly in systems where power efficiency and reliability are critical. With its compact 8SOIC package, the UC3843BD1 seamlessly integrates into circuit designs, offering enhanced performance while maintaining a low footprint. Its ability to operate under wide temperature ranges and its high frequency operation makes it a preferred choice for designers looking to optimize power solutions in both industrial and commercial products. The strategic incorporation of this DC DC Switching Controllers onsemi UC3843BD1 facilitates significant enhancements in system stability and power management efficiency, making it an essential component for high-performance electronics.
UC3843BD1 Features
The UC3843BD1 includes multiple features that enhance its functionality and reliability in demanding applications. Key features include programmable frequency up to 500 kHz, a low start-up current of 0.5 mA, and automatic feed-forward compensation. Additionally, the controller supports pulse-by-pulse current limiting and features under-voltage lockout with hysteresis, ensuring safe operation under variable operating conditions.
UC3843BD1 Applications
- Power Supplies: Used in the regulation and control of power supply units, ensuring stable and efficient power delivery with its precise feedback control mechanism.
- LED Drivers: Integral in managing LED driver circuits, the UC3843BD1 provides stable current for consistent illumination while maximizing energy efficiency.
- Battery Chargers: Utilizes its current control features to manage and optimize the charging cycles for various battery technologies, enhancing life span and performance.
- Consumer Electronics: Applied in devices such as TVs and gaming consoles, where power efficiency and space-saving are critical.
- Telecommunications Equipment: Ensures reliable power management in telecom infrastructure, critical for maintaining system reliability and performance.
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