UC3843AD1
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- Mfr.Part #
- UC3843AD1
- Manufacturer
- STMicroelectronics
- Package / Case
- 8-SOIC (0.154, 3.90mm Width)
- Datasheet
- Download
- Description
- IC REG CTRLR BOOST/FLYBACK 8SOIC
- Stock
- 5,323
- In Stock ：
- 5,323
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- Manufacturer :
- STMicroelectronics
- Product Category :
- DC DC Switching Controllers
- Mount :
- Surface Mount
- Mounting Type :
- Surface Mount
- Input Voltage-Nom :
- 15V
- Topology :
- Boost, Flyback
- Terminal Form :
- Gull wing
- Length :
- 4.9mm
- Frequency - Switching :
- Up to 500kHz
- Input Voltage (Max) :
- 30V
- Duty Cycle (Max) :
- 96%
- Synchronous Rectifier :
- No
- Rise Time :
- 50ns
- Number of Pins :
- 8
- Voltage - Supply (Vcc/Vdd) :
- 7.6V~30V
- Packaging :
- Tube
- Function :
- Step-Up, Step-Up/Step-Down
- Terminal Position :
- Dual
- Output Type :
- Transistor Driver
- Number of Outputs :
- 1
- Output Current :
- 1A
- Lead Free :
- Contains Lead
- Analog IC - Other Type :
- SWITCHING CONTROLLER
- Max Duty Cycle :
- 100 %
- RoHS Status :
- Non-RoHS Compliant
- Output Configuration :
- Positive
- Control Mode :
- CURRENT-MODE
- Control Technique :
- PULSE WIDTH MODULATION
- Package / Case :
- 8-SOIC (0.154, 3.90mm Width)
- Quiescent Current :
- 12mA
- Operating Temperature :
- -40°C~150°C TJ
- Terminal Finish :
- TIN LEAD
- Fall Time (Typ) :
- 50 ns
- Width :
- 3.9mm
- Switcher Configuration :
- Single
- Base Part Number :
- UC3843
- Moisture Sensitivity Level (MSL) :
- 1 (Unlimited)
- ECCN Code :
- EAR99
- Frequency :
- 500kHz
- Control Features :
- Frequency Control
- JESD-609 Code :
- e0
- Number of Terminations :
- 8
- Datasheets
- UC3843AD1
UC3843AD1 Documents
DC DC Switching Controllers STMicroelectronics UC3843AD1 Overview
The UC3843AD1 from STMicroelectronics is a highly efficient DC DC switching controller designed for managing boost or flyback converters. This IC is tailored for advanced power management tasks and stands out due to its robust performance in converting low voltage to high voltage or vice versa efficiently. The UC3843AD1 is equipped with features that ensure stable operation under varying load and input conditions, making it an ideal choice for applications requiring reliable power management solutions. The integration of this controller in your systems ensures optimized power consumption and enhanced reliability, driving demand among B2B clients looking for bulk purchasing of effective power solutions.
UC3843AD1 Features
- Operating frequency up to 500 kHz
- Low startup current of 0.5 mA
- High efficiency through pulse-width modulation (PWM) control
- Current-mode operation for improved transient response
- Under-voltage lockout with hysteresis
- Programmable soft-start function
- Trimmed oscillator discharge current for precise duty cycle control
UC3843AD1 Applications
- Power Supplies: Utilized in both industrial and consumer power supplies for reliable voltage conversion and management.
- LED Lighting: Drives LED lighting systems by providing stable power control, enhancing longevity and efficiency.
- Battery Chargers: Used in battery charging systems to optimize the power management and increase the charging efficiency.
- Telecommunication Equipment: Ensures stable operation and power efficiency in telecom infrastructures.
- Portable Devices: Ideal for portable device applications due to its low power consumption and high efficiency.
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