UC3843BD
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- Mfr.Part #
- UC3843BD
- Manufacturer
- onsemi
- Package / Case
- 14-SOIC (0.154, 3.90mm Width)
- Datasheet
- Download
- Description
- IC REG CTRLR FLYBACK 14SOIC
- Stock
- 58,538
- In Stock ：
- 58,538
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- Manufacturer :
- onsemi
- Product Category :
- DC DC Switching Controllers
- Control Technique :
- PULSE WIDTH MODULATION
- Output Configuration :
- Positive
- Lifecycle Status :
- ACTIVE (Last Updated: 2 days ago)
- Voltage - Supply (Vcc/Vdd) :
- 7.6V~30V
- Published :
- 2002
- Input Voltage (Max) :
- 25V
- RoHS Status :
- ROHS3 Compliant
- Operating Temperature :
- 0°C~70°C TA
- Frequency :
- 250kHz
- Number of Pins :
- 14
- JESD-609 Code :
- e3
- Number of Outputs :
- 1
- Topology :
- Boost, Flyback
- Synchronous Rectifier :
- No
- Input Voltage-Nom :
- 15V
- Moisture Sensitivity Level (MSL) :
- 1 (Unlimited)
- Terminal Finish :
- Tin (Sn)
- Rise Time :
- 50ns
- Max Duty Cycle :
- 96 %
- Length :
- 8.75mm
- Output Current :
- 200mA
- Peak Reflow Temperature (Cel) :
- 260
- Output Voltage :
- 13.4V
- Mount :
- Surface Mount
- Frequency - Switching :
- Up to 500kHz
- Width :
- 4mm
- Package / Case :
- 14-SOIC (0.154, 3.90mm Width)
- Mounting Type :
- Surface Mount
- Control Features :
- Frequency Control
- Pbfree Code :
- yes
- Height :
- 1.5mm
- Terminal Form :
- Gull wing
- Control Mode :
- CURRENT-MODE
- ECCN Code :
- EAR99
- Halogen Free :
- Halogen Free
- Terminal Position :
- Dual
- Base Part Number :
- UC384*B
- Time@Peak Reflow Temperature-Max (s) :
- 40
- Switcher Configuration :
- Single
- REACH SVHC :
- No SVHC
- Output Type :
- Transistor Driver
- Packaging :
- Tube
- Analog IC - Other Type :
- SWITCHING CONTROLLER
- Factory Lead Time :
- 2 Weeks
- Fall Time (Typ) :
- 50 ns
- Number of Terminations :
- 14
- Function :
- Step-Up, Step-Up/Step-Down
- Lead Free :
- Lead Free
- Datasheets
- UC3843BD
DC DC Switching Controllers onsemi UC3843BD Overview
The onsemi UC3843BD is a high-performance integrated circuit specifically designed for controlling DC-DC flyback converters. This 14-pin SOIC device excels in its ability to drive efficient power management and conversion in a variety of applications. Engineered by onsemi, a leader in semiconductor solutions, the UC3843BD ensures reliable operation with its robust design and advanced technology. The implementation of this controller in your systems will optimize efficiency and durability, making it an essential component for high-demand environments where precision and reliability are paramount. This product’s versatility in managing power requirements makes it ideal for designers looking to improve their power supply architectures.
UC3843BD Features
The UC3843BD offers several distinctive features that enhance its applicability in power management tasks:
- High-performance PWM control
- Low start-up current (<1.0mA)
- Automatic feed forward compensation
- Pulse-by-pulse current limiting
- Under-voltage lockout with hysteresis
- Double pulse suppression
- High current totem pole output for driving a power MOSFET
UC3843BD Applications
- Power Supplies: The UC3843BD is commonly used in switch mode power supplies (SMPS) where it improves efficiency and responsiveness to load changes.
- Battery Chargers: Ideal for use in battery charger circuits, this controller helps manage the flow and control of power to ensure safe and efficient charging.
- LED Lighting Drivers: In LED lighting applications, the UC3843BD controls the power supply ensuring stable and efficient lighting performance.
- Consumer Electronics: It is used in various consumer electronics to provide stable voltages and protect devices from power irregularities.
- Telecommunications Equipment: Telecommunication systems benefit from the robust power management capabilities of the UC3843BD, ensuring reliable operation under varying power conditions.
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