UC3843D
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- Mfr.Part #
- UC3843D
- Manufacturer
- onsemi
- Package / Case
- 8-SOIC (0.154, 3.90mm Width)
- Datasheet
- Download
- Description
- IC REG CTRLR 14SOIC
- Stock
- 46,324
- In Stock ：
- 46,324
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- Manufacturer :
- onsemi
- Product Category :
- DC DC Switching Controllers
- Control Mode :
- CURRENT-MODE
- Terminal Position :
- Dual
- Lifecycle Status :
- ACTIVE (Last Updated: 1 day ago)
- Packaging :
- Tube
- Output Current :
- 200mA
- Topology :
- Boost, Buck, Buck-Boost, Flyback, Forward
- Analog IC - Other Type :
- SWITCHING CONTROLLER
- Frequency - Switching :
- Up to 500kHz
- Control Technique :
- PULSE WIDTH MODULATION
- ECCN Code :
- EAR99
- Number of Outputs :
- 1
- Peak Reflow Temperature (Cel) :
- 260
- Input Voltage-Nom :
- 15V
- REACH SVHC :
- No SVHC
- Operating Supply Current :
- 11mA
- Rise Time :
- 50ns
- Number of Terminations :
- 8
- Number of Pins :
- 8
- Factory Lead Time :
- 6 Weeks
- Operating Temperature :
- 0°C~70°C TA
- Function :
- Step-Up, Step-Down, Step-Up/Step-Down
- Weight :
- 72.603129mg
- Fall Time (Typ) :
- 50 ns
- Output Configuration :
- Positive
- Thickness :
- 1.58mm
- Supply Current-Max (Isup) :
- 25mA
- Moisture Sensitivity Level (MSL) :
- 1 (Unlimited)
- Width :
- 3.91mm
- RoHS Status :
- ROHS3 Compliant
- Power Dissipation :
- 650mW
- Voltage - Supply (Vcc/Vdd) :
- 12V~28V
- Lead Free :
- Lead Free
- JESD-609 Code :
- e4
- Base Part Number :
- UC3843
- Height :
- 1.75mm
- Duty Cycle (Max) :
- 97%
- Nominal Input Voltage :
- 15V
- Length :
- 4.9mm
- Frequency :
- 450kHz
- Control Features :
- Frequency Control
- Output Voltage :
- 5V
- Pbfree Code :
- yes
- Output Type :
- Transistor Driver
- Package / Case :
- 8-SOIC (0.154, 3.90mm Width)
- Surface Mount :
- yes
- Synchronous Rectifier :
- No
- Quiescent Current :
- 11mA
- Terminal Finish :
- Nickel/Palladium/Gold (Ni/Pd/Au)
- Input Current :
- 11mA
- Max Duty Cycle :
- 100 %
- Mounting Type :
- Surface Mount
- Terminal Form :
- Gull wing
- Datasheets
- UC3843D
DC DC Switching Controllers onsemi UC3843D Overview
The onsemi UC3843D is a robust DC DC Switching Controller specifically engineered to address the needs of high-performance power supply systems. This integrated circuit is designed in a 14SOIC package, making it suitable for compact designs while maintaining high efficiency and reliability. As a pivotal component in advanced power management, the UC3843D integrates multiple features tailored for stable and efficient power conversion, crucial for bulk buyers looking to enhance their products with reliable power solutions. Utilizing this DC DC Switching Controllers onsemi UC3843D ensures optimal performance in various demanding applications, contributing to system longevity and enhanced power handling capabilities.
UC3843D Features
The UC3843D includes several key features that make it a preferred choice for designing power electronic systems:
- High performance current mode PWM controller
- Low startup current (<1mA)
- Automatic feed forward compensation
- Pulse-by-pulse current limiting
- Under-voltage lockout with hysteresis
- High current totem pole output for driving a Power MOSFET
- Up to 500 kHz operation frequency
UC3843D Applications
- Switching Power Supplies: The UC3843D controls the switching of power MOSFETs in AC to DC and DC to DC converters, ensuring efficient power conversion with minimal heat generation.
- Battery Chargers: It manages the power flow and charging cycles in battery chargers, optimizing the charging process for various battery types.
- DC-DC Converters for Servers: Tailored for server power supplies, the UC3843D enhances energy efficiency and reliability in server farms and data centers.
- LED Drivers: It is used in driving LEDs, providing stable current for consistent illumination without flickering, suitable for both industrial and commercial lighting.
- Telecommunication Equipment: Ensures stable power delivery in telecom infrastructures, contributing to uninterrupted service and reliability.
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