UC3843BD1
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- Mfr.Part #
- UC3843BD1
- Manufacturer
- STMicroelectronics
- Package / Case
- 8-SOIC (0.154, 3.90mm Width)
- Datasheet
- Download
- Description
- IC REG CTRLR BOOST/FLYBACK 8SO
- Stock
- 16,847
- In Stock ：
- 16,847
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- Manufacturer :
- STMicroelectronics
- Product Category :
- DC DC Switching Controllers
- Terminal Finish :
- Tin (Sn)
- Input Bias Current :
- -2μA
- Number of Outputs :
- 1
- Input Voltage (Max) :
- 25V
- Height :
- 1.5mm
- Topology :
- Boost, Flyback
- Frequency - Switching :
- Up to 500kHz
- Function :
- Step-Up, Step-Up/Step-Down
- Package / Case :
- 8-SOIC (0.154, 3.90mm Width)
- Number of Pins :
- 8
- Base Part Number :
- UC384*B
- Control Features :
- Frequency Control
- Packaging :
- Tube
- Width :
- 4mm
- Peak Reflow Temperature (Cel) :
- 260
- Rise Time :
- 50ns
- Power Dissipation :
- 702mW
- Fall Time (Typ) :
- 50 ns
- Mounting Type :
- Surface Mount
- Control Mode :
- CURRENT-MODE
- Output Current :
- 200mA
- Output Voltage :
- 13.4V
- Terminal Form :
- Gull wing
- Switcher Configuration :
- Single
- Number of Terminations :
- 8
- Lifecycle Status :
- ACTIVE (Last Updated: 3 days ago)
- Terminal Position :
- Dual
- Max Power Dissipation :
- 702mW
- ECCN Code :
- EAR99
- Output Type :
- Transistor Driver
- Mount :
- Surface Mount
- Lead Free :
- Lead Free
- Length :
- 5mm
- Time@Peak Reflow Temperature-Max (s) :
- 40
- Factory Lead Time :
- 2 Weeks
- Pbfree Code :
- yes
- Halogen Free :
- Halogen Free
- Control Technique :
- PULSE WIDTH MODULATION
- Analog IC - Other Type :
- SWITCHING CONTROLLER
- Max Supply Current :
- 17mA
- Max Duty Cycle :
- 96 %
- Output Configuration :
- Positive
- Published :
- 1999
- Moisture Sensitivity Level (MSL) :
- 1 (Unlimited)
- Input Voltage-Nom :
- 15V
- Voltage - Supply (Vcc/Vdd) :
- 7.6V~30V
- Frequency :
- 52kHz
- RoHS Status :
- ROHS3 Compliant
- Operating Temperature :
- 0°C~70°C TA
- JESD-609 Code :
- e3
- REACH SVHC :
- No SVHC
- Synchronous Rectifier :
- No
- Datasheets
- UC3843BD1
UC3843BD1 Documents
DC DC Switching Controllers STMicroelectronics UC3843BD1 Overview
The UC3843BD1 from STMicroelectronics is a robust DC DC switching controller designed for managing boost and flyback topologies. This integrated circuit (IC) is tailored for sophisticated power supply solutions, offering enhanced performance and reliability in a compact 8SO package. Ideal for B2B clients looking to incorporate stable and efficient power conversion in their products, the UC3843BD1 excels in applications requiring precise voltage regulation and power sequencing. With its ability to drive innovation in power management, this controller is pivotal for developers aiming to optimize their systems for better energy utilization and minimized footprint.
UC3843BD1 Features
The UC3843BD1 includes several key features that make it a preferred choice for power control applications. It supports a wide operating voltage range, which is essential for versatile power supply conditions. The device also features automatic feed-forward compensation, enhancing performance across different input conditions and load variations. Pulse-by-pulse current limiting provides crucial protection against short-circuit conditions, ensuring system reliability. Additionally, the high-frequency operation of the UC3843BD1 reduces the size of power supply components, which is beneficial for creating compact device designs.
UC3843BD1 Applications
- Power Supply Units: Utilized in designing both isolated and non-isolated power supplies, where it enhances efficiency and reliability.
- LED Drivers: Employed in LED lighting systems to provide stable and efficient power conversion, ensuring optimal performance and longevity of lighting components.
- Battery Chargers: Integral in developing battery management systems that require precise control over charging voltages and currents, thus improving battery life and safety.
- Telecommunication Equipment: Used in telecom infrastructures to manage power supplies that require high efficiency and tight voltage regulation under variable load conditions.
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