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
- Function :
- Step-Up, Step-Up/Step-Down
- Max Supply Current :
- 17mA
- REACH SVHC :
- No SVHC
- Output Current :
- 200mA
- Max Duty Cycle :
- 96 %
- Mounting Type :
- Surface Mount
- Power Dissipation :
- 702mW
- Switcher Configuration :
- Single
- Pbfree Code :
- yes
- Terminal Form :
- Gull wing
- Mount :
- Surface Mount
- Halogen Free :
- Halogen Free
- Base Part Number :
- UC384*B
- Fall Time (Typ) :
- 50 ns
- Input Bias Current :
- -2μA
- Time@Peak Reflow Temperature-Max (s) :
- 40
- Packaging :
- Tube
- JESD-609 Code :
- e3
- Length :
- 5mm
- Terminal Finish :
- Tin (Sn)
- Peak Reflow Temperature (Cel) :
- 260
- Operating Temperature :
- 0°C~70°C TA
- Rise Time :
- 50ns
- Control Technique :
- PULSE WIDTH MODULATION
- Frequency - Switching :
- Up to 500kHz
- Moisture Sensitivity Level (MSL) :
- 1 (Unlimited)
- Input Voltage-Nom :
- 15V
- Height :
- 1.5mm
- Output Type :
- Transistor Driver
- Terminal Position :
- Dual
- ECCN Code :
- EAR99
- Lifecycle Status :
- ACTIVE (Last Updated: 3 days ago)
- Synchronous Rectifier :
- No
- Number of Outputs :
- 1
- Published :
- 1999
- Number of Terminations :
- 8
- Factory Lead Time :
- 2 Weeks
- Lead Free :
- Lead Free
- Voltage - Supply (Vcc/Vdd) :
- 7.6V~30V
- Number of Pins :
- 8
- Output Configuration :
- Positive
- Topology :
- Boost, Flyback
- Control Mode :
- CURRENT-MODE
- RoHS Status :
- ROHS3 Compliant
- Width :
- 4mm
- Analog IC - Other Type :
- SWITCHING CONTROLLER
- Frequency :
- 52kHz
- Output Voltage :
- 13.4V
- Control Features :
- Frequency Control
- Input Voltage (Max) :
- 25V
- Max Power Dissipation :
- 702mW
- Package / Case :
- 8-SOIC (0.154, 3.90mm Width)
- 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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